CertainTeed Attic Cleaning & Rodent Proofing in La Puente: What to Know First
As an independent CertainTeed service provider, we clean, sanitize, and rodent-proof attics containing CertainTeed insulation products in La Puente and the surrounding San Gabriel Valley. Most jobs run same-day to next-day once we’ve completed the inspection, and we provide a written price before any work starts - no exceptions. If you’re seeing droppings in blown CertainTeed fiberglass, compressed batts near eave vents, or smell ammonia rising through your ceiling register, you’re the homeowner this page is for. Call (626) 509-3237 to schedule a free inspection with a written scope.
How CertainTeed Products Fail - and How We Fix Them
- CertainTeed InsulSafe SP blown fiberglass settles into a dense mat when rodents tunnel through it, creating packed runways that hold urine and reduce R-value to roughly half the labeled performance. We remove the contaminated SP entirely, HEPA-vacuum the deck, and reinstall only after sealing all penetrations with fire-rated caulk and steel mesh - otherwise the rodents return through the same gaps.
- CertainTeed SpeedyR rolled fiberglass batts compress at the edges of attic hatches and pull-away zones where rats squeeze past; the batts never recover their loft, and the compressed zones become thermal bypasses - air paths that short-circuit your insulation layer. We replace compromised SpeedyR with fresh batts cut to actual cavity dimensions, not nominal, after installing rigid hatch dams and weatherstrip.
- CertainTeed SoftTouch blown cellulose absorbs rodent urine and holds it; the borates that provide fire resistance don’t prevent bacterial loading, and the ammonia off-gassing can migrate through recessed can-light housings that aren’t airtight. We extract saturated SoftTouch down to the deck, apply an enzyme-based decontamination treatment, and let the substrate dry before any new material goes in.
- CertainTeed CertaSpray open-cell foam, when applied over unsealed top plates in older La Puente tract homes, can trap moisture from rodent activity against the drywall - we’ve found this in 1960s-era ranches north of Hacienda Boulevard where the original builders skipped baffles. We cut away compromised foam sections, seal the top plates with closed-cell foam or gasketed covers, then reapply CertaSpray only where the substrate is dry and verified.
- CertainTeed MemBrain smart vapor retarder installed over contaminated fiberglass becomes a petri film - the variable permeability that makes it effective in winter works against you when biological loading is present. We remove MemBrain with the insulation beneath it, decontaminate the ceiling plane, and reinstall fresh MemBrain only after blower-door verification that the attic floor is sealed tight enough to prevent future rodent entry.
Our CertainTeed Attic Cleaning & Rodent Proofing Process

- 1
Inspection with photo documentation. We enter the attic, identify the CertainTeed product line and its condition, map rodent pathways, and photograph every compromised area. You get these photos before we quote.
- 2
Written scope and price. We specify what comes out, what stays, what seals go where, and what material replaces the contaminated product. No work starts until you have this in writing.
- 3
Exclusion before cleaning. We seal all entry points - eave gaps, pipe penetrations, top-plate cracks, chimney chases - with steel mesh, copper wool, or fire-rated sealant matched to the opening. Cleaning before exclusion is wasting your money.
- 4
HEPA extraction and decontamination. Contaminated CertainTeed material comes out in sealed bags. The deck gets vacuumed, then treated with enzyme decontaminant. We run an ATP test to verify sanitation before moving on.
- 5
Reinstallation and verification. New insulation goes in only after the substrate passes. On jobs with ceiling penetrations, we run a blower-door test - a pressurization reading that shows, in one number, how much air your building envelope is losing - and we note the before-and-after CFM50 so you can see the sealing result.
- 6
Documented photo record and depth log. You receive photos of the completed work, a written depth log showing R-value achieved by zone, and our 365-Day Done Right Promise in writing.
What CertainTeed Attic Cleaning & Rodent Proofing Costs in La Puente
Most attic cleanouts and rodent-proofing jobs in La Puente run on a spectrum based on what we’re removing and how far the contamination spread:
| Scenario | Typical Range |
|---|---|
| Light contamination, InsulSafe SP removal + sanitizing, no reinsulation | $1,800 - $2,800 |
| Moderate contamination, full SoftTouch extraction + decon + new blown fiberglass | $3,200 - $4,600 |
| Heavy contamination, multiple product layers, full exclusion, reinsulation to R-38 | $4,800 - $7,200 |
| CertaSpray foam remediation (cut, dry, reapply) | $2,400 - $4,000 per affected zone |
What moves the price: square footage, depth of existing insulation, whether we need to build baffles at the eaves (common in pre-1980 La Puente homes), and whether the HVAC plenum or ductwork has been compromised. We also service Reflectix radiant barrier systems when they’re part of the assembly. Call (626) 509-3237 for a free inspection and written estimate - bring us a competing quote and we’ll read it with you.
Why La Puente Homeowners Call Topside Attic Insulation La Puente for CertainTeed Work

We’ve been in attics on both sides of Hacienda Boulevard long enough to know which vintage of tract home is most likely to be missing baffles at the eaves - and which CertainTeed products were spec’d in each era. Wes Okafor and our crew sequence every job the way the building science actually demands: seal the leaks first, then install the insulation. The insulation is just the last layer, not the fix. Our 365-Day Done Right Promise applies to all completed work, and a live person answers calls 24/7. Every customer leaves with a written pre- and post-job depth log, a photo record, and on applicable jobs, before-and-after blower-door numbers they can verify themselves. No voicemail loops. No callback windows measured in business days.
FAQs
No - removing and replacing CertainTeed insulation as part of a cleanout and restoration does not void the original product warranty, provided the replacement material meets the same spec and installation standard. As an independent CertainTeed service provider, we document the original product line and install replacement material to the manufacturer’s published depth and coverage table. Call (626) 509-3237 if you want us to verify your specific product’s warranty terms before we start.
We source CertainTeed products through the same distribution channels used by certified installers - InsulSafe SP, SpeedyR, SoftTouch, and CertaSpray are all available to us. We also install Johns Manville, Owens Corning, Knauf, and Rockwool when the job spec or your preference calls for it. No proprietary lock-in. We’ll note the source on your written scope so you know exactly what you’re getting.
Cleaning and restoring is almost always less expensive than full removal and replacement - unless the contamination has reached the ceiling drywall or the existing product has degraded past its recoverable R-value. In La Puente’s climate, where summer attic temperatures exceed 140°F, compressed or urine-saturated fiberglass rarely recovers. We give you both numbers in writing so you can decide.
We typically schedule inspections within 24-48 hours, and most cleanout jobs start the same day or next day after you approve the written scope. Emergency situations - active rodent infestations with HVAC contamination, or compromised electrical wiring - get prioritized. A live person answers (626) 509-3237 around the clock.
Usually not. We isolate the attic with plastic sheeting at the hatch, run negative-air HEPA filtration during extraction, and keep the work zone contained. If you have respiratory sensitivities or the contamination is extensive, we may recommend you step out for the four to six hours of active extraction. We’ll tell you during the inspection, not surprise you mid-job.
Written by Wes Okafor, Owner, Topside Attic Insulation La Puente at Topside Attic Insulation La Puente, serving La Puente and nearby areas.