Insulation in Lewisville, TX
Crawl space encapsulation and vapor barrier work in Lewisville has to solve a problem most newer suburbs never face: homes built between 1975 and 1995 with unconditioned crawl spaces and attics that were never designed for the humidity coming off Lewisville Lake. We seal, encapsulate, insulate, and air-seal those homes so they stop fighting the climate and start holding temperature. If your Lewisville house feels humid in spring or runs hot upstairs in July, call (866) 751-4428 and we’ll tell you exactly what’s going on before we sell you anything.
Why Lewisville Homes Are Different
Lewisville’s suburban boom ran from the mid-1970s through the early 1990s, before Texas adopted meaningful energy codes. That left a large share of the city’s housing stock with original R-11 wall batts and R-19 attic insulation that has now compacted and degraded over 40-plus years. Unlike newer DFW suburbs like Frisco or Little Elm that built out primarily after 2000 with stricter IECC requirements, Lewisville’s retrofit and upgrade market is disproportionately large. It’s the dominant job type local insulation contractors face.
The core of Lewisville’s housing stock is wood-frame tract homes built between roughly 1975 and 1995, most with gable or hip roofs, unconditioned attics, and HVAC ductwork routed through those attic spaces rather than inside conditioned envelopes. That Texas-era construction norm dramatically amplifies heat gain through inadequate insulation. A technician working Lewisville’s 1980s neighborhoods will repeatedly find the same failure mode: blown-in fiberglass or deteriorated kraft-faced batts in the attic, combined with flex duct that sits on top of or just above that insulation. The ducts are losing conditioned air into a 150°F space while the insulation beneath them is crushed and thermally bridged. Correcting both the duct sealing and the insulation depth in the same visit is the standard job here, not an upsell.
Lewisville sits in IECC climate zone 3A, hot-humid, where attic temperatures routinely hit 140 to 155°F in July and August. But the city also endures periodic hard freezes and ice events. The February 2021 winter storm caused widespread pipe failures here. Insulation has to perform at both extremes within the same year. The proximity to Lewisville Lake, a large Corps of Engineers reservoir directly to the west and north, elevates ambient humidity compared to inland suburbs like Flower Mound’s eastern sections, increasing the risk of moisture intrusion and mold in poorly air-sealed older attics.
Our Main Lewisville Services
Most Lewisville homeowners call us about two things first: attic insulation that’s no longer doing its job, and crawl spaces that are making the house feel damp or smell musty. Here’s what those jobs look like here.
Attic Insulation in Lewisville
Lewisville’s pre-energy-code housing stock means most attics have R-19 at best, and much of it has settled to R-11 levels or worse. We remove or top up that insulation, air-seal the attic floor, and bring the whole assembly up to what a Texas attic actually needs. The Attic Insulation in Lewisville page walks through the full scope, including what it costs for a typical 1980s two-story here.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Crawl Space Encapsulation & Vapor Barrier in Lewisville
Crawl space encapsulation in Lewisville is a humidity-control job first and an insulation job second. Homes built in the 70s, 80s, and early 90s here typically have vented crawl spaces that pull in damp air off Lewisville Lake all spring and summer. That moisture feeds mold, rots floor joists, and makes the living space above feel clammy even when the AC runs. A full encapsulation with a reinforced vapor barrier and sealed vents turns that space into a dry, conditioned buffer under the house. We’ve also written a full breakdown of the Crawl Space Encapsulation & Vapor Barrier process for homeowners who want the technical detail.
Crawl Space Vapor Barrier
Signs you need it
You smell musty air near floor registers, see standing water or damp soil under the house, or your hardwood floors cup and warp in summer.
What it costs in Lewisville
A crawl space vapor barrier in Lewisville typically runs $1,200 to $3,500 depending on square footage, access, and whether the existing barrier is torn out first.
How we do it
We pull the old, torn poly out, level the high spots and sharp rocks, and lay a 12-mil reinforced barrier across the floor and up the piers, taping every seam.
Crawl Space Encapsulation
Signs you need it
Your crawl space stays damp year-round, insulation batts are falling from the subfloor, or you’ve already seen mold or a pest trail under the house.
What it costs in Lewisville
Full crawl space encapsulation in Lewisville ranges from $6,000 to $14,000, with the high end covering large or low-clearance crawls that need extra prep and drainage.
How we do it
We seal the vents, install a heavy vapor barrier on the floor and foundation walls, insulate the rim joists, and add a dehumidifier if the crawl needs mechanical drying.
Crawl Space Insulation
Signs you need it
Floors above the crawl feel cold in winter, pipes have frozen at least once, or old fiberglass batts are sagging and full of dust.
What it costs in Lewisville
Crawl space insulation in Lewisville typically costs $1,800 to $4,200 to reinsulate the floor and rim joists, depending on whether we use batts or closed-cell spray foam.
How we do it
We remove failed insulation, air-seal the band joist, and reinstall material that won’t absorb moisture, keeping it tight against the subfloor without crushing it.
What Crawl Space Encapsulation & Vapor Barrier Costs in Lewisville
| Item | Typical range in Lewisville |
|---|---|
| Crawl space vapor barrier only | $1,200 - $3,500 |
| Crawl space insulation | $1,800 - $4,200 |
| Full encapsulation (floor, walls, rim joists) | $6,000 - $14,000 |
| Dehumidifier for encapsulated crawl | $1,500 - $2,800 |
Is crawl space encapsulation worth it in Lewisville?
Yes. With the lake humidity, a vented crawl space in Lewisville is a moisture pump. Encapsulation stops the musty smell, protects joists from rot, and drops indoor humidity enough that the AC doesn’t have to work as hard. Most homeowners notice the difference within a week.
Can you encapsulate a crawl space that floods in Lewisville?
Yes, but the water entry point has to be fixed first. We add an interior drain and sump pump where needed, then encapsulate. Call (866) 751-4428 and we’ll assess what’s causing the standing water before recommending anything.
Spray Foam Insulation in Lewisville
Spray foam insulation in Lewisville is the most effective way to deal with the twin problems of 150-degree attics and humidity that never lets up in summer. Open-cell foam air-seals and insulates in one pass, cutting the stack effect that pulls lake-humid air into the house. For rim joists and crawl spaces, closed-cell foam adds a vapor and moisture barrier that batt insulation can’t offer. Our full Spray Foam Insulation guide covers open-cell, closed-cell, and where each one belongs.
Open-Cell Spray Foam
Signs you need it
Your upstairs runs 8 to 10 degrees hotter than downstairs in summer, or your AC runs constantly without reaching the setpoint.
What it costs in Lewisville
Open-cell spray foam on a Lewisville roofline typically costs $2.50 to $4.50 per square foot depending on thickness, access, and roof pitch.
How we do it
We prep the attic, cover can lights and boxes that can’t be buried, and spray the underside of the roof deck to the agreed R-value, leaving the attic semi-conditioned.
Closed-Cell Spray Foam
Signs you need it
You need high R-value in a small cavity, moisture control in a crawl space or rim joist, or an air barrier where open-cell won’t hold up.
What it costs in Lewisville
Closed-cell spray foam in Lewisville runs $3.50 to $6.50 per square foot, with the higher end on jobs that require boat access or complex framing.
How we do it
We spray the foam in lifts, letting each pass cure before the next, until the cavity is filled to spec, then trim and inspect every pass.
What Spray Foam Insulation Costs in Lewisville
| Item | Typical range in Lewisville |
|---|---|
| Open-cell roof deck spray foam | $2.50 - $4.50 / sq ft |
| Closed-cell spray foam | $3.50 - $6.50 / sq ft |
| Rim joist closed-cell foam | $1,500 - $3,200 |
| Garage ceiling spray foam | $1,800 - $3,800 |
Is spray foam safe once it’s installed in a Lewisville home?
Yes, once fully cured, which takes about 24 hours for open-cell and up to 72 for thick closed-cell lifts. We ventilate during install and tell you exactly when it’s safe to be back in the house.
Will closed-cell foam stop Lake Lewisville humidity from getting into my crawl space?
It’s the best material for that job. Closed-cell foam bonds to the rim joist and foundation wall and acts as both an air seal and a vapor barrier. For a specific price on your crawl space, call (866) 751-4428.
Blown-In Insulation in Lewisville
Blown-in insulation is the most common retrofit we do in Lewisville because most pre-1995 attics here are badly under-insulated. The original R-19 batts or early blown fiberglass has settled to half its rated depth, which means the house is losing money every time the AC kicks on. We blow cellulose or fiberglass to R-38, R-49, or R-60 depending on the house, and we air-seal the attic floor first so the new insulation actually does its job. The Blown-In Insulation page explains the materials and the differences in more depth.
Blown-In Cellulose
Signs you need it
Your attic insulation measures under 12 inches deep, or your energy bills spike in July and August while the upstairs stays warm.
What it costs in Lewisville
Blown-in cellulose to R-38 in a typical Lewisville attic costs $1.50 to $3.00 per square foot, including air sealing around penetrations.
How we do it
We seal bypasses and top plates, then blow GreenFiber cellulose to the target depth using a calibrated machine with a two-person crew.
Blown-In Fiberglass
Signs you need it
You want a lighter material that won’t settle as much, or you’re topping up existing fiberglass that’s already in decent shape.
What it costs in Lewisville
Blown-in fiberglass in Lewisville typically runs $1.80 to $3.50 per square foot, depending on target R-value and whether it’s a top-up or full install.
How we do it
We blow Owens Corning or Johns Manville fiberglass in a single pass, depth-checking with marked rulers so the coverage is even wall to wall.
What Blown-In Insulation Costs in Lewisville
| Item | Typical range in Lewisville |
|---|---|
| Blown-in cellulose to R-38 | $1.50 - $3.00 / sq ft |
| Blown-in fiberglass to R-38 | $1.80 - $3.50 / sq ft |
| Blown-in top-up over existing | $1.00 - $1.80 / sq ft |
| Dense-pack wall insulation | $2.50 - $4.50 / sq ft |
How much blown-in insulation does a Lewisville attic need?
In climate zone 3A, R-38 is the practical minimum, but R-49 is what we recommend for most homes here because of how hard August hits. Your attic’s existing depth and air-sealing status determine the exact number, and we’ll show you the measurements before we start.
Can you blow insulation over old fiberglass in Lewisville?
Usually yes, if the old material is dry and hasn’t been contaminated by rodents. We inspect first, then blow on top to the target depth. For a free second opinion on whether a top-up is enough, call (866) 751-4428.
Radiant Barrier Installation in Lewisville
Radiant barrier installation in Lewisville targets the single biggest driver of summer cooling cost here: a roof deck that hits 150°F and radiates heat straight down through whatever insulation is below it. A foil radiant barrier stapled under the roof deck reflects most of that heat before it ever reaches the attic floor. In split-level and two-story homes from the 80s, that’s often the difference between an upstairs that cools off and one that never catches up. Our Radiant Barrier Installation hub page covers attic vs roof deck options and how the material performs.
Attic Radiant Barrier
Signs you need it
Your attic measures 130°F or higher on a 95-degree day, or the upstairs air vents blow air that’s several degrees warmer than what’s coming out downstairs.
What it costs in Lewisville
An attic radiant barrier in Lewisville typically costs $1.50 to $3.50 per square foot, depending on roof complexity and whether it goes on the attic floor or underside of the roof deck.
How we do it
We staple foil to the underside of the roof deck, leaving the required air gap at eaves and ridge, and cut around vents so airflow stays intact.
Radiant Barrier & Ventilation
Signs you need it
Your attic has high heat and poor venting, or you’ve already added insulation but the upstairs still won’t cool down by evening.
What it costs in Lewisville
A radiant barrier plus improved attic ventilation in Lewisville runs $2,500 to $5,500 for a typical home, including baffles and vent checks.
How we do it
We verify soffit and ridge vent flow, install baffles where needed, then add the radiant barrier so the two systems work together instead of against each other.
What Radiant Barrier Installation Costs in Lewisville
| Item | Typical range in Lewisville |
|---|---|
| Attic radiant barrier | $1.50 - $3.50 / sq ft |
| Radiant barrier + ventilation upgrade | $2,500 - $5,500 |
| Roof deck foil under new construction | $1.00 - $2.00 / sq ft |
Does a radiant barrier actually help in Lewisville’s climate?
Yes, specifically because Lewisville attics run so hot. Reflecting radiant heat before it enters the attic can drop peak attic temperatures by 20 to 30 degrees, which directly cuts the load on your AC during July and August afternoons.
Will a radiant barrier replace insulation in my Lewisville attic?
No. A radiant barrier stops radiant heat transfer, but it does not slow conductive heat like insulation does. The two work together. We typically install a radiant barrier with an insulation upgrade, not instead of one. Call (866) 751-4428 to see if your attic has room for both.
Insulation Removal & Replacement in Lewisville
Insulation removal and replacement in Lewisville usually isn’t about comfort, it’s about contamination. Homes from the 70s and 80s here have decades of accumulated dust, rodent droppings, and in some cases old vermiculite or failing kraft-faced batts. Removing that material is the only way to reset the attic before air sealing and reinsulating. We work carefully, with containment and ventilation, because doing it wrong just spreads the contamination into the living space. Our Insulation Removal & Replacement page explains the full process including the hazardous material protocol.
Attic Insulation Removal
Signs you need it
You can see droppings, nesting material, or heavy dust in the insulation, or the material has compacted to under 6 inches and can’t be topped up.
What it costs in Lewisville
Attic insulation removal in Lewisville typically runs $1.00 to $2.50 per square foot, with the higher end on low-clearance attics or heavy contamination.
How we do it
We set up a HEPA-filtered vacuum system, bag the waste inside the attic, and remove it through a sealed chute so nothing spills into the house.
Insulation Replacement
Signs you need it
Your attic was contaminated, water-damaged, or you’re replacing R-19 with R-49 and want a clean start rather than a top-up.
What it costs in Lewisville
Full removal plus new blown-in insulation in Lewisville runs $3.00 to $5.00 per square foot all in, depending on the new R-value and access.
How we do it
After removal, we air-seal the attic floor, then blow new cellulose or fiberglass to the target depth, taking moisture readings throughout.
What Insulation Removal & Replacement Costs in Lewisville
| Item | Typical range in Lewisville |
|---|---|
| Attic insulation removal only | $1.00 - $2.50 / sq ft |
| Removal + new blown-in insulation | $3.00 - $5.00 / sq ft |
| Contaminated insulation removal | $1.50 - $3.00 / sq ft |
| Vermiculite removal and replacement | $4.00 - $7.00 / sq ft |
How long does attic insulation removal take in Lewisville?
A typical 1,500 to 2,200 square foot attic takes one day to remove, with another day for air sealing and reinsulation. Contaminated or low-slope attics can add a day. We give a firm timeline before we start.
Do I need to leave my Lewisville house during insulation removal?
For standard removal, no, but we do seal the attic access and run negative air pressure so dust doesn’t get pulled into the living space. For vermiculite or heavy rodent contamination, we recommend staying out during removal. We’ll tell you before scheduling. Call (866) 751-4428 with any concern.
Attic Air Sealing in Lewisville
Attic air sealing in Lewisville is the step most homeowners skip, and it’s the one that makes the biggest difference in a pre-energy-code house. Every opening between the conditioned living space and the attic, top plates, can lights, duct boots, the attic hatch, pulls stack-effect air through the house, dragging Lake Lewisville humidity into the insulation itself. Sealing those leaks first means the insulation installed afterward actually performs. The Attic Air Sealing page breaks down the standard leak points and the materials we use.
Top Plate & Penetration Sealing
Signs you need it
You feel drafts near interior walls in winter, or your upstairs stays humid even when the AC runs long cycles.
What it costs in Lewisville
Top plate and penetration sealing in Lewisville typically runs $800 to $2,500, depending on attic size and how many penetrations need sealing.
How we do it
We pull back existing insulation at each top plate and penetration, seal with foam or caulk, then reset the insulation on top.
Attic Hatch Sealing
Signs you need it
Your attic hatch is warm to the touch in summer, or you can feel air moving around it when the AC runs.
What it costs in Lewisville
Attic hatch sealing in Lewisville is usually $150 to $400 as part of a larger air sealing job, or $500 to $900 standalone.
How we do it
We weatherstrip the hatch perimeter, add an insulated cover box, and seal any gaps around the frame so the hatch stops being a leak point.
What Attic Air Sealing Costs in Lewisville
| Item | Typical range in Lewisville |
|---|---|
| Top plate and penetration sealing | $800 - $2,500 |
| Can light and duct boot sealing | $300 - $900 |
| Attic hatch sealing | $150 - $900 |
| Full attic air sealing package | $1,500 - $4,000 |
Why does air sealing matter more in Lewisville than in drier parts of Texas?
Because the humidity off Lewisville Lake gets pulled into the attic through those leaks, where it condenses, wets the insulation, and feeds mold. Sealing cuts that moisture path and makes the insulation system work as designed.
Can I just add insulation without air sealing in Lewisville?
You can, but you’ll pay more every month for the same comfort because the air leaks are still there. We recommend sealing first. For a free second opinion on any written estimate that skips air sealing, call (866) 751-4428.
Wall Insulation in Lewisville
Wall insulation in Lewisville is a different job than attic work because most pre-1995 homes here have R-11 batts in the walls that were marginal when installed and have settled since. The fix is drilling and filling the wall cavities with dense-pack cellulose or injection foam, usually from the exterior or through the drywall. That’s the only practical way to insulate existing walls without tearing them open. Our Wall Insulation page covers injection foam, drill-and-fill, and soundproofing options in detail.
Injection Foam Wall Insulation
Signs you need it
Your walls feel cold in winter or hot in summer, or rooms on the sun-facing side of the house won’t hold temperature.
What it costs in Lewisville
Injection foam wall insulation in Lewisville runs $3.00 to $6.00 per square foot of wall area, depending on access and cavity depth.
How we do it
We drill small access holes, inject slow-rise foam into each cavity, then patch the holes to match the existing finish as closely as possible.
Drill & Fill Wall Insulation
Signs you need it
Your walls are empty or under-insulated and you want a lower-cost fix that doesn’t require opening drywall.
What it costs in Lewisville
Drill and fill wall insulation in Lewisville typically costs $2.50 to $5.00 per square foot, with the lower end for cellulose and the higher end for foam.
How we do it
We drill holes in each stud bay, blow dense-pack cellulose or fiberglass under pressure, and patch every hole with a matching texture coat.
What Wall Insulation Costs in Lewisville
| Item | Typical range in Lewisville |
|---|---|
| Injection foam wall insulation | $3.00 - $6.00 / sq ft |
| Drill & fill cellulose | $2.50 - $4.00 / sq ft |
| Interior wall soundproofing | $4.00 - $8.00 / sq ft |
| Exterior wall insulation (new build) | $1.50 - $3.00 / sq ft |
Can you insulate walls without ripping out drywall in Lewisville?
Yes. Drill-and-fill and injection foam methods go through small holes that get patched after. The finished surface stays intact. That’s how we handle most existing Lewisville homes, and it usually takes one to two days.
Why do my Lewisville interior walls feel hot in the afternoon?
Because the sun-facing exterior walls have little to no effective insulation, and the heat transfers straight through the wall cavity. Filling those cavities with dense-pack cellulose or foam stops that transfer. Call (866) 751-4428 for an assessment of your exact walls.
Attic Cleaning & Rodent Proofing in Lewisville
Attic cleaning and rodent proofing in Lewisville handles the mess that years of attic neglect leave behind: rodent droppings, nesting debris, and insulation that’s been contaminated and crushed. Older subdivisions near the greenbelts and along the lake tend to have more rodent pressure, and once squirrels or rats establish a route in, they reuse it season after season. Cleaning out the contamination and sealing the entry points has to happen before any new insulation goes in. The Attic Cleaning & Rodent Proofing page covers the full process, including exclusion and decontamination protocol.
Attic Cleanout
Signs you need it
You can see droppings or nesting material in the insulation, or you’ve had a rodent problem and the attic still smells.
What it costs in Lewisville
An attic cleanout in Lewisville typically runs $1,500 to $3,500, depending on attic size, contamination level, and how much material has to be removed.
How we do it
We vacuum out contaminated insulation, HEPA-filter the space, and remove all debris and nesting material down to the attic floor.
Rodent Proofing & Exclusion
Signs you need it
You hear scratching in the attic at night, find droppings along the soffits, or see chew marks on fascia boards or vents.
What it costs in Lewisville
Rodent proofing and exclusion in Lewisville runs $800 to $2,500, depending on the number of entry points and the vent work required.
How we do it
We seal every gap, cap open vents with hardware cloth, repair damaged soffit, and install one-way exits where animals are still present.
What Attic Cleaning & Rodent Proofing Costs in Lewisville
| Item | Typical range in Lewisville |
|---|---|
| Attic cleanout only | $1,500 - $3,500 |
| Rodent proofing and exclusion | $800 - $2,500 |
| Attic sanitizing and decontamination | $900 - $2,200 |
| Full attic restoration (cleanout + seal + insulation) | $5,000 - $12,000 |
Do you handle the insulation replacement after attic cleaning in Lewisville?
Yes. We remove the contaminated insulation, sanitize the space, seal the entry points, and then blow new insulation in the same job. That’s the clean reset most older Lewisville attics need.
How do rodents get into Lewisville attics in the first place?
Mostly through unscreened gable vents, gaps at the soffit edges, and openings where utilities enter the house. Older wood-frame construction makes those gaps more common. We find and seal them all, then verify the animals are gone. Call (866) 751-4428 to set up an inspection.
Home Energy Audit in Lewisville
A home energy audit in Lewisville gives you the actual numbers behind the comfort problems you already feel: where the leaks are, how much insulation is really there, and why the upstairs won’t cool in August. For homes built before energy codes, the findings are almost always the same stack of issues: air leaks, settled attic insulation, and leaky ductwork in a 150-degree attic. The report tells you what to fix first so you’re not paying for a bunch of work that doesn’t move the needle. Our Home Energy Audit page explains what each test measures and what the report includes.
Blower Door Test
Signs you need it
Your house feels drafty in winter, humid in summer, or your energy bills are higher than neighbors’ homes of the same size.
What it costs in Lewisville
A blower door test as part of a full home energy audit in Lewisville runs $250 to $600, depending on home size and the scope of the audit.
How we do it
We mount a calibrated fan in an exterior door frame, depressurize the house, and measure the total air leakage in cubic feet per minute.
Thermal Imaging Inspection
Signs you need it
You have cold spots in walls, hot ceilings, or you want visual proof of where insulation is missing before committing to a fix.
What it costs in Lewisville
A thermal imaging inspection in Lewisville typically runs $200 to $500, and it’s usually bundled with the blower door and duct tests.
How we do it
We scan the ceilings, walls, and floors with an infrared camera while the blower door is running, which makes leaks and voids show up clearly.
What Home Energy Audit Costs in Lewisville
| Item | Typical range in Lewisville |
|---|---|
| Full home energy audit (blower door + thermal) | $400 - $1,000 |
| Blower door test only | $250 - $600 |
| Thermal imaging inspection | $200 - $500 |
| Duct leakage test | $250 - $600 |
Is a home energy audit worth it before insulating in Lewisville?
Yes, because it tells you where the biggest losses are instead of guessing. Most audits on pre-1995 Lewisville homes find air leakage and duct loss that make insulation alone a partial fix. The audit turns a vague problem into a priority list.
Can you do a home energy audit on a Lewisville townhome or condo?
Yes, though the tests have to account for shared walls and sometimes building-level access. We adjust the protocol and report accordingly. For a specific quote, call (866) 751-4428 and tell us what kind of unit you’re in.
Brands We Service in Lewisville
We service and install insulation from Owens Corning, Johns Manville, GreenFiber, and Demilec in Lewisville. Common parts and materials are stocked in the metro area, so most jobs start within a few days. See our brands page for the full manufacturer list and what we stock.
Serving Lewisville, TX - Our Local Coverage Area
We’re based in the Lewisville area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Pricing for Insulation in Lewisville, TX
| Service | Typical range in Lewisville |
|---|---|
| Crawl space vapor barrier | $1,200 - $3,500 |
| Full crawl space encapsulation | $6,000 - $14,000 |
| Open-cell spray foam roofline | $2.50 - $4.50 / sq ft |
| Closed-cell spray foam | $3.50 - $6.50 / sq ft |
| Blown-in cellulose to R-38 | $1.50 - $3.00 / sq ft |
| Attic radiant barrier | $1.50 - $3.50 / sq ft |
| Attic insulation removal + replacement | $3.00 - $5.00 / sq ft |
| Full attic air sealing package | $1,500 - $4,000 |
| Injection foam wall insulation | $3.00 - $6.00 / sq ft |
| Attic cleanout | $1,500 - $3,500 |
FAQs About Insulation in Lewisville, TX
How quickly can you schedule insulation work in Lewisville?
We usually schedule estimates within a few days, and most attic, crawl space, or spray foam jobs are completed in a single day once we’re on site. Larger jobs like full crawl space encapsulation may take longer depending on the size of the space and how much old material needs to come out first.
Do I need a permit for insulation work?
Most standard insulation work, such as attic top-ups, air sealing, or crawl space vapor barriers, does not require a separate permit. If a project involves structural changes or new ductwork, we’ll flag that during the estimate so you know what to expect before we schedule anything.
How does your written estimate work?
We inspect the attic, crawl space, or walls in person and provide a written estimate with the full scope and price before any work begins. That price stays fixed unless you request additional work once we’re on site.
Do you serve areas near Lewisville?
Yes, we also cover the surrounding communities around Lewisville, so homes just outside the city line can typically get the same estimate, scheduling, and installation process we use for jobs inside the city, without any difference in how we price or schedule the work.
What happens to my old insulation?
We remove and dispose of old, compressed, or contaminated insulation before installing anything new, whether that’s degraded batts, damaged blown-in material, or vermiculite that needs special handling. Removal is priced separately from new insulation so there are no surprises once we start.
Frequently Asked Questions
What happens when you call
- 1A real person answersNo phone trees - talk to a local insulation pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3A background-checked tech heads outLicensed & insured, typically within 30-60 min.
- 4You approve before work beginsNothing starts until you say go.
What Lewisville Customers Say
"Crawl space was wet every spring. They laid the heavy liner, sealed the vents, and put a dehumidifier down there. Floors are warm and the moisture meter he left reads fine now. He still answers when I text him a reading."
- Devon Pierce"The house had rats in the attic insulation and a smell we could not place. Walt's crew pulled all of it, sealed the gaps where they were getting in, sanitized, and put in new blown-in. He sent photos of the sealed openings so I could see it done."
- Rosa Delgado"Walt came out himself, stuck his head in the attic, and told me I had about four inches where I needed fourteen. No sales pitch, just the number and what it would cost to fix it. Crew was here two days later."
- Carl MeadowsHow It Works in Lewisville
Getting your insulation handled is simple and fast.
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We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.
Our Work in Lewisville
A look at recent insulation projects across Lewisville and surrounding areas.
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