Trusted Attic Cleaning & Rodent Proofing for San Antonio Homeowners
Attic cleaning and rodent proofing in San Antonio typically costs between $1,500 and $4,500 depending on attic size, contamination level, and the extent of exclusion work needed, which differs from our Attic Cleaning & Rodent Proofing in Houston. Most jobs are completed in one to three days, and we answer the phone live 24/7, so you’ll reach a real person when you call (866) 751-4428. Walt’s Insulation has been doing this work since 2000, and our Done Right Promise means if it’s not done right, we make it right. We’re the one down the road in San Antonio, not a national call center that funnels your job to whoever bids lowest.
San Antonio attics take a beating. The summer heat bakes everything up there, and the limestone-heavy soil around Bexar County means roof rats and field mice are a year-round problem, not a winter nuisance. We regularly see attics in Alamo Heights, Stone Oak, and Helotes where a rodent problem has gone unnoticed for months. Droppings, chewed wiring, shredded insulation, and that ammonia smell that hits you when you open the attic hatch. The damage compounds fast. We clean it, sanitize it, and seal the entry points so the problem doesn’t come back.
Every job is handled by background-checked, uniformed technicians who arrive on time and explain what they’re doing before they do it. You get upfront pricing before any work begins, plus a free second opinion on any written estimate you’ve received from another company. If you’re a senior or veteran, that’s a permanent 10% off, always.
Key Takeaways:
- Attic cleaning and rodent proofing in San Antonio typically runs $1,500 to $4,500, finished in one to three days.
- We sanitize after removal so your attic isn’t left with lingering hantavirus or salmonella risk from droppings.
- Rodent proofing means sealing entry points, not just trapping what’s already inside.
- We answer the phone 24/7 with a live person, and every job is backed by the Done Right Promise.
- Free second opinion on any written estimate, and no trip charge inside the service county.
What Our Attic Cleaning & Rodent Proofing Service Includes
Here’s what a full attic cleaning and rodent proofing job in San Antonio covers when we handle it. Every step matters, but the biggest mistake we see from other companies is cleaning without sealing. If you don’t exclude the rodents, you’ve just paid for a deep clean that lasts two weeks.
Attic Cleanout
An attic cleanout is exactly what it sounds like: we remove everything that shouldn’t be up there. Old insulation that’s been matted down by rodent traffic, nesting material, droppings, food caches, carcasses, and any debris that’s accumulated over the years. In San Antonio homes built in the 80s and 90s, we often find fiberglass batt insulation that’s been tunneled through so extensively it no longer has any R-value worth keeping. Walt’s Insulation removes it all by hand and by vacuum, bags it, and hauls it away. You’re left with a clean, empty attic space ready for new insulation or a fresh start.
Attic Sanitizing & Decontamination
This is the step that separates a real attic cleaning from a surface-level sweep. Rodent droppings and urine can carry hantavirus, salmonella, and leptospirosis, and that dust gets pulled into your home’s living space through ceiling penetrations and HVAC returns. We apply a hospital-grade disinfectant and sanitizing treatment throughout the attic, covering every surface the rodents touched. The treatment neutralizes odors at the source rather than masking them. For attics with heavy contamination in San Antonio’s older neighborhoods like Monte Vista or King William, we may recommend a full insulation removal before sanitizing so nothing is left sealed beneath the new material.
Rodent Proofing & Exclusion
Rodent proofing is the permanent fix. Trapping alone just manages the population; exclusion is what keeps new rodents from moving in. Our technicians inspect the entire roofline, soffits, fascia boards, gable vents, and every penetration where plumbing stacks, electrical lines, or HVAC lines pass through the attic. We seal gaps with rodent-proof materials including steel mesh, copper wool, and sealants that rats and mice cannot chew through. We also check for gaps at the roof-to-wall junction, a common entry point in San Antonio’s Spanish-style and ranch homes. The goal is an attic that’s sealed tight enough that no rodent gets back in.
Attic Restoration
Attic restoration is the full reset, and it’s often what San Antonio homeowners need after a long-term infestation. We remove all contaminated insulation, sanitize and decontaminate the space, seal every entry point, and then install fresh insulation to bring the attic back to proper R-value for our climate. In San Antonio, that usually means R-38 to R-49 depending on the home and the insulation type. We work with trusted manufacturers like Owens Corning, CertainTeed, and GreenFiber for the replacement material. A restored attic not only smells clean; it also cuts your cooling bill during the brutal summer months when your attic can hit 140 degrees.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Brands We Service for Attic Cleaning & Rodent Proofing
We’ve worked on attics insulated with every major product line you’ll find in San Antonio homes, and that experience matters when rodents have been chewing through material for months. CertainTeed fiberglass batts and blown-in insulation are common in homes built in the 1990s and 2000s, and we know how their product behaves when it’s been contaminated: the batts compress, the blown-in material shifts, and the R-value drops dramatically. We remove it completely and restore the attic with fresh CertainTeed material when the existing product makes sense to reuse as a brand match.
For homes with spray foam, Demilec and Icynene are the two manufacturers we see most often in San Antonio. Rodents can tunnel through spray foam, and when they do, the foam’s air-sealing benefits are compromised. We’re comfortable cutting out damaged sections of either product and re-insulating the void properly. GreenFiber blown-in cellulose is another one we service frequently, especially in older San Antonio homes where cellulose was the retrofit insulation of choice in the 1970s and 80s. Whether your attic has CertainTeed, Demilec, Icynene, GreenFiber, or any other manufacturer’s material up there, we can clean it, decontaminate it, and restore it properly.
Signs You Need Attic Cleaning & Rodent Proofing Right Now
Rodent problems in San Antonio attics rarely announce themselves with a visible rat in the kitchen. The signs are quieter, and by the time you notice them, the damage is usually several months along. Here’s what to watch for.
- Scratching or scurrying sounds in the ceiling at night. Roof rats are nocturnal, and in San Antonio they’re most active between dusk and dawn. If you hear movement above the bedroom ceiling, especially right after sunset, something is living up there. The sound alone is worth a phone call, because it means rodents have already found a way in.
- A persistent ammonia or musty odor from the attic or upper walls. Rat urine has a sharp, acrid smell that intensifies as it accumulates in insulation and on wood framing. Once that odor seeps into your living space, it means the urine has soaked deep enough to affect the sheetrock below. Cleaning alone won’t fix it; the contaminated material has to come out.
- Dark, greasy rub marks along the soffits, roofline, or utility lines. Rodents follow the same paths every night, and the oils in their fur leave visible smudges on repeated routes. In San Antonio attics, we look for these marks along truss chords, duct work, and the underside of the roof deck. They’re a map of exactly where the animals are traveling.
- Droppings in the attic, in stored boxes, or around roof penetrations. Rat droppings are about the size of a raisin and dark brown when fresh. Mouse droppings are smaller, about the size of a grain of rice. Either one in the attic is a sign that you need cleanup and exclusion, not just a few traps. Droppings carry disease and should never be swept or vacuumed by a homeowner without proper PPE.
- Chewed wiring or shredded insulation you can see from the attic access. Rodents gnaw to keep their teeth sharp, and exposed Romex wiring in San Antonio attics is a prime target. Chewed insulation on wiring is a genuine fire hazard that needs professional attention. Shredded insulation used as nesting material is evidence of an established population, not a single curious rodent passing through.
Our Attic Cleaning & Rodent Proofing Process - Step by Step
Here’s how we work when you call Walt’s Insulation for attic cleaning and rodent proofing in San Antonio, with the same process we follow for Attic Cleaning & Rodent Proofing - Humble. No surprises, no vague timelines, and no work you didn’t approve first.
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Inspection and assessment. We start with a thorough attic inspection from the access point through the entire space, including the soffits, gable ends, and roofline from the outside. We document everything: droppings, damage, entry points, insulation condition. You get a written report with photos and a flat price for the work, not an hourly estimate that creeps upward. If you already have a written estimate from another company, we’ll give you a free second opinion on it.
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Containment and prep. Before we disturb anything, we set up containment to keep contaminated dust and debris from drifting into your living space. That means sealing the attic access, running HEPA-filtered exhaust if needed, and protecting the path from the exterior door to the attic hatch. This step matters because rodent droppings become airborne dust when disturbed, and that dust shouldn’t end up in your hallway.
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Removal and cleanout. We remove all contaminated insulation, nesting material, droppings, and debris by hand and with a commercial vacuum system. The material is double-bagged and removed from your property. In most San Antonio homes, this takes a single day. For larger attics or heavier contamination, we’ll tell you upfront that it’s a two-day job.
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Sanitizing and decontamination. Once the attic is empty, we treat every exposed surface with a professional-grade disinfectant designed for rodent contamination. Framing, decking, duct work, and the top of the ceiling below all get treated. The treatment neutralizes odor-causing bacteria and reduces the biological risk from droppings and urine that have soaked into porous wood.
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Exclusion, sealing, and restoration. The final step is the one that makes the job stick. We seal every entry point we identified during inspection using steel mesh, copper wool, and chewing-resistant sealants. Then, if you’re restoring insulation, we install fresh material to the correct R-value for San Antonio’s climate, using brands like Owens Corning, CertainTeed, or GreenFiber. The attic is left clean, sealed, and performing the way it should have from the start. Every bit of it is covered by our Done Right Promise for life.
How Much Does Attic Cleaning & Rodent Proofing Cost in San Antonio?
Attic Cleaning & Rodent Proofing pricing in San Antonio generally runs from $1,500 to $4,500 for a complete job. A basic cleanout with sanitizing and minor sealing on a small, accessible attic in a home built in the 2000s might land around $1,500 to $2,200. A full restoration, meaning removal of all contaminated insulation, decontamination, comprehensive exclusion work across the entire roofline, and installation of new insulation to R-38 or R-49, typically costs $3,000 to $4,500. Older homes in neighborhoods like Olmos Park, Terrell Hills, or Jefferson with multiple roof penetrations, gable vents, and years of accumulated damage tend toward the higher end.
What drives the price? Attic size and accessibility are the big ones. A walkable attic with plywood decking is faster to work in than a low-slope attic where technicians are crawling through trusses. The level of contamination matters too: light droppings require less remediation than a full-blown infestation with soaked insulation and odor throughout the ceiling below. The number of entry points to seal is another factor, especially on older San Antonio homes with original wood soffits and settling that’s opened gaps over the years.
How to avoid overpaying? Get a fixed, written price before work starts, not a time-and-materials estimate. Ask whether the quote includes sanitizing, or just removal and cleanup. Ask whether exclusion is included, or billed as an extra. And don’t pay for a second opinion; ours is free on any written estimate from another company. You’ll also get $40 off any repair over $200, and if you’re a senior or veteran, a permanent 10% discount applies. Call (866) 751-4428 for a free estimate with no trip charge inside the service county.
Attic Cleaning & Rodent Proofing Near San Antonio - Our Service Area
Walt’s Insulation serves San Antonio and the surrounding communities across Bexar County and beyond. We handle attic cleaning and rodent proofing in Alamo Heights, Stone Oak, Helotes, Leon Valley, Shavano Park, and Schertz, with most jobs scheduled within days of your call. If you’re outside the immediate San Antonio area, we also serve the greater Houston region, including Attic Cleaning & Rodent Proofing in Houston, Attic Cleaning & Rodent Proofing in Spring, and Attic Cleaning & Rodent Proofing in The Woodlands. Wherever you are, you’ll reach a live person when you call, day or night.
Serving San Antonio, TX - Our Local Coverage Area
We’re based in the San Antonio area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Attic Cleaning & Rodent Proofing in San Antonio
Attic cleaning and rodent proofing is the process of removing rodent waste, contaminated insulation, nesting material, and debris from your attic, then sanitizing the space and sealing every entry point so rodents can’t get back in. It’s a two-part job: the cleaning addresses the damage that’s already done, and the proofing, also called exclusion, prevents the problem from restarting. Walt’s Insulation has performed this work in San Antonio homes since 2000 and backs every job with the Done Right Promise, and we also offer Attic Cleaning & Rodent Proofing in Pasadena.
Most San Antonio attic cleaning and rodent proofing jobs are finished in one to three days. A straightforward cleanout with sanitizing and basic sealing on an average-sized attic usually takes a single day. Full restoration jobs that include insulation removal, decontamination, extensive exclusion work, and new insulation installation typically run two to three days. We’ll give you a clear timeline with your written estimate so you know exactly what to expect before we start.
In San Antonio, attic cleaning and rodent proofing typically costs between $1,500 and $4,500. A basic cleanout with sanitizing runs $1,500 to $2,200, while a full restoration with new insulation, decontamination, and comprehensive exclusion runs $3,000 to $4,500. Your exact price depends on attic size, contamination level, and the number of entry points we need to seal. Call (866) 751-4428 for a free estimate, and bring us any written estimate from another company for a free second opinion.
Yes, we service attics with fiberglass batts, blown-in fiberglass, blown-in cellulose, and spray foam from manufacturers including CertainTeed, Demilec, Icynene, and GreenFiber. Rodents damage every insulation type differently, and our technicians know how to remove and replace each one correctly. If your attic has a less common material, we’ll assess it during the free inspection and recommend the right approach.
Yes, we offer emergency availability for attic rodent problems in San Antonio, and our phones are answered by a live person 24/7. If you have an active infestation that’s making noise in the walls or you’ve spotted a rodent inside your living space, call (866) 751-4428 and we’ll schedule a technician as soon as possible. The sooner we address an active infestation, the less damage the rodents can do to wiring, duct work, and insulation.
Every attic cleaning and rodent proofing job we perform is covered by our Done Right Promise, a lifetime workmanship guarantee. If something isn’t done right, we make it right, no runaround. That commitment comes from being locally owned and owner-operated since 2000, not a franchise that closes tickets after 30 days. Walt’s Insulation is the one down the road, and we stand behind what we do.
You don’t need to do much. Clear a path from your entry door to the attic access so our technicians can bring in equipment, and move any vehicles out of the driveway if possible. We handle the attic itself completely; no need to remove stored items beforehand unless you can access them easily. If you have pets, it helps to keep them in a separate room while our uniformed, background-checked technicians are in the house.
Schedule Your Attic Cleaning & Rodent Proofing Service in San Antonio Today
If rodents have been in your San Antonio attic, every week of delay means more droppings, more chewed wiring, and more damage to your insulation. Call Walt’s Insulation at (866) 751-4428 for a free, no-obligation estimate. A live person answers around the clock, and we’ll schedule your inspection at a time that works for you. The estimate is upfront and fixed, and every job is backed by the Done Right Promise for life.
Written by Walt Brenner, Owner at Walt’s Insulation, serving San Antonio since 2000.