Insulation in Sunnyvale, CA
Crawl space encapsulation and vapor barrier work in Sunnyvale typically runs $3,500-$7,500 for a full encapsulation with 20-mil liner, dehumidifier, and sealed vents, with most jobs completed in two days. The postwar ranch homes concentrated in Lakewood and Raynor Park - built with vented dirt-floored crawl spaces and no vapor barrier - create a steady demand for moisture control as homeowners discover rot, mold, or energy loss beneath their floors. We dispatch crews to Sunnyvale from our San Francisco Bay Area office, and a live person answers calls at (669) 259-0406 around the clock.
Why Sunnyvale Homes Are Different
Sunnyvale’s dominant housing stock - postwar ranch homes from the 1950s and 1960s concentrated in neighborhoods like Lakewood and Raynor Park - was commonly built with zero wall-cavity insulation, a California-specific shortcut justified at the time by the mild climate. With PG&E residential rates among the highest in the nation and California’s Title 24 energy code triggered the moment any permitted renovation touches these homes, Sunnyvale sits at the intersection of a massive retrofit backlog and mandatory compliance upgrades - a combination that drives insulation demand regardless of season.
The city’s ongoing ADU boom adds another layer. Garage and backyard-unit conversions, driven by tech-sector housing pressure, must meet full Title 24 compliance standards, which means insulation inspections and blower-door testing where none existed before. The marine-influenced Mediterranean climate keeps extreme heat rare, so insulation ROI arguments here center on heating season efficiency and PG&E bill reduction rather than peak cooling loads. A contractor pulling any permit on a 1960s ranch in Lakewood or Raynor Park will almost always find uninsulated 2×4 stud walls - not neglect, but original construction - because Bay Area builders routinely omitted wall insulation in that era.
Our Main Sunnyvale Services
These are the two services Sunnyvale homeowners call about most, plus blown-in insulation for quick attic upgrades.
Attic Insulation in Sunnyvale
Attic insulation in Sunnyvale usually means replacing settled fiberglass batts from the 1970s with blown-in cellulose or new batts over sealed air leaks. The low-pitched ranch roofs common in neighborhoods like Birdland limit working height, so we measure carefully and specify material that performs in tight quarters. Every attic job includes top-plate and penetration sealing before insulation goes in, with blower-door numbers published at completion. Attic Insulation in Sunnyvale covers full details on materials and Title 24 compliance.
Spray Foam Insulation in Sunnyvale
Spray foam insulation in Sunnyvale works best for ADU conversions, irregular attic spaces, and rim joist sealing in crawl spaces where batts won’t conform. We specify open-cell or closed-cell based on moisture exposure and fire-code requirements, with Owens Corning and Demilec products available. Written scope includes foam thickness, R-value achieved, and ignition barrier requirements before work starts. Spray Foam Insulation in Sunnyvale has full specifications.
Blown-In Insulation in Sunnyvale
Blown-in insulation in Sunnyvale is the fastest path to code compliance for wall cavities and attics in older ranches. We use dense-pack cellulose from GreenFiber or fiberglass from Johns Manville, blown through exterior holes or from inside with minimal drywall repair. The method works especially well for Lakewood and Raynor Park homes where original wall insulation was never installed. Blown-In Insulation in Sunnyvale explains the process and pricing.
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 Sunnyvale
Crawl space encapsulation and vapor barrier work in Sunnyvale addresses the vented dirt-floor crawl spaces beneath most 1950s-1970s ranches in Lakewood, Raynor Park, and Birdland. The marine climate brings winter ground moisture that rises through unsealed earth floors, condenses on floor joists, and drives mold, rot, and musty indoor air - problems homeowners often misattribute to plumbing leaks. Crawl Space Encapsulation & Vapor Barrier covers our full service line for this work.
Crawl Space Vapor Barrier
Signs you need it
Your crawl space needs a vapor barrier if you smell mustiness indoors, see white mineral deposits on block walls, or find fiberglass batts hanging wet and blackened between joists.
What it costs in Sunnyvale
A standalone 6-mil to 20-mil vapor barrier installed over bare earth in a Sunnyvale crawl space typically runs $1,200-$2,800 depending on square footage, pier count, and whether we seal to walls or simply cover the floor.
How we do it
We remove debris and old fallen insulation, grade the earth, lay overlapping polyethylene sheeting sealed at seams and perimeter, and tape around piers and penetrations so no earth remains exposed to crawl space air.
Crawl Space Encapsulation
Signs you need it
Full encapsulation becomes necessary when you see rot in rim joists, active mold on subflooring, or energy bills that spike despite attic work because conditioned air is escaping into the crawl space.
What it costs in Sunnyvale
Complete crawl space encapsulation in Sunnyvale with 20-mil liner, sealed vents, insulated walls, and dehumidifier typically ranges $3,500-$7,500, with larger or heavily obstructed crawl spaces at the upper end.
How we do it
We seal all vents, install rigid foam board on walls, lay and seam-seal the floor liner up walls to a termination strip, install a dedicated dehumidifier with condensate pump, and provide before-and-after moisture readings and photos.
What Crawl Space Encapsulation & Vapor Barrier Costs in Sunnyvale
| Item | Typical range in Sunnyvale |
|---|---|
| Vapor barrier (floor only, 6-20 mil) | $1,200 - $2,800 |
| Full encapsulation with dehumidifier | $3,500 - $7,500 |
| Crawl space insulation (rigid foam + batts) | $2,000 - $4,500 |
Does crawl space encapsulation help with PG&E bills in Sunnyvale?
Yes - sealing a vented crawl space stops the stack effect that pulls conditioned air downward in winter, which we typically measure as a 15-25% reduction in heating runtime on homes with ductwork in the crawl space. Call (669) 259-0406 for a free assessment with blower-door and infrared documentation.
How long does crawl space encapsulation take in Sunnyvale?
Most Sunnyvale encapsulations finish in two days; larger crawl spaces or those requiring rot repair before liner installation may extend to three. We provide a written schedule with the price before work starts - no exceptions.
Radiant Barrier Installation in Sunnyvale
Radiant barrier installation in Sunnyvale makes sense for the low-pitched ranch attics where summer solar gain, though moderate, still warms roof decks and radiates downward into living space. The 1950s-1970s homes in Birdland and Cherry Chase with dark composite shingles see the most benefit, especially when paired with existing attic insulation that lacks air sealing. Radiant Barrier Installation details our full approach.
Attic Radiant Barrier
Signs you need it
Your attic needs a radiant barrier if second-floor rooms stay uncomfortably warm past 7 PM, your AC runs longer than neighbors with similar homes, or roof decking reads above 140°F on summer afternoons.
What it costs in Sunnyvale
Attic radiant barrier installation in Sunnyvale typically runs $1,500-$3,200 for a 1,200-2,000 square foot ranch, depending on attic complexity, existing insulation depth, and whether we staple to rafters or lay over joists.
How we do it
We air-seal the attic floor first, then install perforated radiant barrier foil across rafter bottoms or drape over joist tops, maintaining ventilation channels and documenting with before-and-after attic temperature readings.
Radiant Barrier & Ventilation
Signs you need it
Combine radiant barrier with ventilation upgrades if you see mold on roof sheathing, rusted nail heads, or insulation compressed by moisture - signs that attic air isn’t moving enough to carry heat and humidity out.
What it costs in Sunnyvale
Radiant barrier plus ventilation improvement in Sunnyvale - adding ridge vents, soffit baffles, or powered exhaust - typically ranges $2,200-$4,800 depending on roof configuration and current venting adequacy.
How we do it
We calculate net free vent area per code, install baffles to preserve insulation clearance, add exhaust ventilation as needed, then apply radiant barrier so the system works together rather than fighting itself.
What Radiant Barrier Installation Costs in Sunnyvale
| Item | Typical range in Sunnyvale |
|---|---|
| Attic radiant barrier (foil, rafter-mounted) | $1,500 - $3,200 |
| Radiant barrier with ventilation upgrade | $2,200 - $4,800 |
| Radiant barrier roof deck (new construction or re-roof) | $2,800 - $5,500 |
Does radiant barrier work in Sunnyvale’s mild climate?
It helps more than you’d expect - our infrared readings show 10-20°F reduction in ceiling surface temperature on homes with dark shingles, which translates to shorter AC cycles even when outdoor highs stay under 85°F. Call (669) 259-0406 for attic temperature documentation from a similar home.
Can radiant barrier be added over existing insulation?
Yes, we can lay radiant barrier over joists or blown-in insulation, but we air-seal first because radiant barrier does nothing to stop convective heat loss - the bigger problem in most Sunnyvale attics.
Insulation Removal & Replacement in Sunnyvale
Insulation removal and replacement in Sunnyvale is common in 1960s ranches where original batts have compressed to half their labeled R-value, or where rodents, roof leaks, or failed vapor barriers have contaminated the attic. The low-pitched roofs in Lakewood and Raynor Park make access challenging, so we specify removal methods that don’t damage drywall ceilings below. Insulation Removal & Replacement covers our full protocol.
Contaminated Insulation Removal
Signs you need it
Remove contaminated insulation if you smell urine or decay in the attic, see droppings or nesting material, or find insulation stained brown from roof leaks even after the leak is fixed.
What it costs in Sunnyvale
Contaminated insulation removal in Sunnyvale runs $1,800-$3,500 for a typical 1,500 square foot attic, including HEPA vacuuming, bagging, and disposal; severe contamination requiring full protective protocols reaches $4,000-$5,500.
How we do it
We set up negative air containment, remove insulation with HEPA-filtered vacuums into sealed bags, apply antimicrobial treatment to substrates, and provide photos of clean decking before any new insulation is specified.
Insulation Replacement
Signs you need it
Replace insulation when settled batts no longer cover joist tops, R-value has dropped below Title 24 requirements for your climate zone, or you’re remodeling and the permit triggers energy-code compliance.
What it costs in Sunnyvale
Insulation replacement in Sunnyvale with new blown-in cellulose or fiberglass to current Title 24 levels typically costs $2,500-$5,000 for attic work, with wall insulation replacement adding $3,000-$6,500 depending on access method.
How we do it
We air-seal all top plates, penetrations, and duct boots before installing new material, verify depth and density with spot checks, and provide blower-door numbers showing the envelope improvement you paid for.
What Insulation Removal & Replacement Costs in Sunnyvale
| Item | Typical range in Sunnyvale |
|---|---|
| Contaminated insulation removal (attic) | $1,800 - $3,500 |
| Severe contamination removal with full PPE | $4,000 - $5,500 |
| Attic insulation replacement (blown-in) | $2,500 - $5,000 |
Do I have to leave during insulation removal?
No - our HEPA containment and negative air machines keep living space isolated, though we recommend pets and sensitive individuals stay elsewhere for the removal day as a precaution. Call (669) 259-0406 to schedule around your household’s needs.
How do I know if my old insulation is hazardous?
Vermiculite insulation - gray-brown, pebbly, often from the 1940s-1980s - may contain asbestos and requires lab testing before disturbance; we sample and wait for results before touching it, with documentation provided.
Attic Air Sealing in Sunnyvale
Attic air sealing in Sunnyvale is the single most cost-effective envelope improvement for 1950s-1970s ranches, because these homes were built with no top-plate sealing, unsealed can lights, and duct boots that leak conditioned air directly outdoors. The PG&E rate structure makes every cubic foot of lost air expensive, and we regularly measure 3,000-5,000 CFM50 on pre-1970 homes in Sunnyvale before sealing - numbers that drop 30-50% after proper air sealing. Attic Air Sealing explains our full process.
Top Plate & Penetration Sealing
Signs you need it
Your top plates need sealing if you feel drafts at exterior wall outlets in winter, see dust streaks on attic insulation near walls, or measure more than 2,500 CFM50 on a blower-door test.
What it costs in Sunnyvale
Top plate and penetration sealing in Sunnyvale typically runs $1,200-$2,800 for a 1,500 square foot ranch, depending on wire and pipe density, recessed light count, and whether we need to build sealed soffits over chases.
How we do it
We remove insulation to expose top plates, seal all gaps with polyurethane foam and acrylic caulk, install fire-rated covers over can lights, foam around flues and chimneys with proper clearance materials, and replace insulation.
Can Light & Duct Boot Sealing
Signs you need it
Seal can lights and duct boots if rooms farthest from the HVAC unit are hard to heat or cool, if you see conditioned air leaking around register boots in the attic, or if insulation is blackened by dust near these fixtures.
What it costs in Sunnyvale
Can light and duct boot sealing in Sunnyvale adds $800-$1,800 to a top-plate job, or $1,500-$3,200 as standalone work, depending on light count and whether ducts need mastic repair or replacement.
How we do it
We install pre-formed fire-rated enclosures over each can light, seal duct boots with mastic and mesh, pressure-test ductwork if accessible, and verify with blower-door and infrared that leaks are eliminated.
What Attic Air Sealing Costs in Sunnyvale
| Item | Typical range in Sunnyvale |
|---|---|
| Top plate & penetration sealing | $1,200 - $2,800 |
| Can light & duct boot sealing | $800 - $1,800 |
| Full attic air sealing (comprehensive) | $2,200 - $4,500 |
Can attic air sealing alone lower my PG&E bill?
Yes - on pre-1970 Sunnyvale ranches we typically see 15-25% heating reduction and measurable cooling improvement, with payback under three years at current PG&E rates; we document this with before-and-after blower-door readings on every job. Call (669) 259-0406 for a free assessment.
Will air sealing cause moisture problems in my attic?
No - we verify attic ventilation is adequate before sealing, and our work typically reduces moisture by stopping warm, humid interior air from condensing on cold sheathing; we include sheathing moisture readings in our documentation.
Wall Insulation in Sunnyvale
Wall insulation in Sunnyvale addresses the original construction shortcut that left most 1950s-1960s ranches with empty 2×4 stud cavities - not R-11 batts that failed, but literally nothing. Title 24 compliance now triggers on any permitted renovation, so kitchen remodels, window replacements, and ADU conversions in Lakewood and Raynor Park routinely require wall insulation that wasn’t there when the home was built. Wall Insulation covers all our methods.
Drill & Fill Wall Insulation
Signs you need it
Drill and fill becomes necessary when walls are cold to the touch in winter, when a kitchen or bathroom permit triggers Title 24 inspection, or when blower-door testing shows excessive leakage at exterior walls.
What it costs in Sunnyvale
Drill and fill wall insulation in Sunnyvale with dense-pack cellulose or fiberglass typically runs $2,500-$5,500 for a 1,200 square foot home, with exterior access cheaper than interior work requiring drywall repair.
How we do it
We drill 2-inch holes at stud spacing, blow material to 3.5 pounds per cubic foot density with cavity-by-cavity verification, plug holes with matching siding or interior patches, and provide density test records for inspector sign-off.
Injection Foam Wall Insulation
Signs you need it
Injection foam works best when you need higher R-value in 2×4 walls than cellulose can achieve, when existing wall cavities contain obstacles like fire blocks, or when air sealing is as important as insulation value.
What it costs in Sunnyvale
Injection foam wall insulation in Sunnyvale typically costs $3,500-$7,000 for a similar footprint, with open-cell foam at the lower end and closed-cell at the upper end due to material cost and density requirements.
How we do it
We access cavities through drilled holes or from interior, inject slow-rise foam that fills around obstructions, trim excess after cure, and verify fill completeness with thermal imaging before patching.
What Wall Insulation Costs in Sunnyvale
| Item | Typical range in Sunnyvale |
|---|---|
| Drill & fill (dense-pack cellulose/fiberglass) | $2,500 - $5,500 |
| Injection foam (open-cell) | $3,500 - $5,500 |
| Injection foam (closed-cell) | $5,000 - $7,000 |
Do I need wall insulation for a kitchen remodel permit in Sunnyvale?
Yes - Title 24 requires insulation in any exterior wall cavity exposed during renovation, and Sunnyvale building inspectors will check for it; we provide the insulation certificate and density documentation needed for final. Call (669) 259-0406 to coordinate with your contractor’s permit timeline.
Will drill and fill damage my siding or drywall?
Exterior holes match siding texture and color as closely as possible; interior work requires patching and painting, which we coordinate with your finish contractor or include in scope if specified - photos document every repair.
Attic Cleaning & Rodent Proofing in Sunnyvale
Attic cleaning and rodent proofing in Sunnyvale responds to the region’s roof rat and mouse pressure, which finds easy entry through unsealed eaves, vent screens, and plumbing penetrations in the low-pitched ranch roofs of Birdland and Cherry Chase. Contaminated insulation, gnawed wires, and nesting material create fire and air-quality hazards that simple trapping won’t resolve without exclusion and sanitization. Attic Cleaning & Rodent Proofing details our full protocol.
Rodent Proofing & Exclusion
Signs you need it
You need rodent proofing if you hear scratching at night, find droppings in the attic, see chewed wires or HVAC flex duct, or notice pets fixating on ceiling areas - all indicating active entry points.
What it costs in Sunnyvale
Rodent proofing and exclusion in Sunnyvale typically runs $1,500-$3,500 for a single-story ranch, including entry-point sealing, vent screening, and one-way exits; severe infestations requiring multiple visits reach $3,000-$5,500.
How we do it
We inspect every roof and eave joint with ladders and attic access, seal gaps with rodent-proof materials - steel mesh, concrete, metal flashing - install chew-proof vent screens, and provide photos of every sealed entry with a one-year re-entry guarantee.
Attic Sanitizing & Decontamination
Signs you need it
Sanitize after rodents if you smell ammonia or musk in living spaces below, if insulation is saturated with urine, or if HVAC returns pull attic air - all indicating biohazardous contamination requiring professional treatment.
What it costs in Sunnyvale
Attic sanitizing and decontamination in Sunnyvale costs $1,200-$2,800 for a typical ranch attic, including HEPA vacuuming, enzyme treatment, and antimicrobial application; removal and replacement of contaminated insulation is additional.
How we do it
We remove soiled insulation, HEPA-vacuum all surfaces, apply enzyme digesters that break down organic material, fog with hospital-grade antimicrobial, and test with ATP meters to verify sanitation before new insulation is specified.
What Attic Cleaning & Rodent Proofing Costs in Sunnyvale
| Item | Typical range in Sunnyvale |
|---|---|
| Rodent proofing & exclusion | $1,500 - $3,500 |
| Severe infestation with multiple visits | $3,000 - $5,500 |
| Attic sanitizing & decontamination | $1,200 - $2,800 |
How do I know rodents are gone before you seal?
We install one-way exits over active holes, monitor with game cameras for 3-5 nights to confirm no remaining activity, then seal permanently - sealing while rodents are inside traps them and creates worse problems. Call (669) 259-0406 to schedule inspection and camera monitoring.
Does homeowners insurance cover rodent damage cleanup?
Most policies exclude rodent damage and contamination cleanup, though some cover chewed wiring as a fire hazard; we document everything with photos and written scope to support any claim you choose to file.
Home Energy Audit in Sunnyvale
Home energy audit in Sunnyvale gives homeowners the documented baseline they need before deciding which envelope improvements to prioritize, especially on 1960s ranches with multiple simultaneous problems - unsealed attics, empty walls, and aging HVAC. The audit combines blower-door testing, thermal imaging, and combustion safety checks into a written scope with prioritized recommendations and price ranges for each measure. Home Energy Audit explains our full audit protocol.
Blower Door Test
Signs you need it
You need a blower-door test if your home feels drafty, rooms vary by more than 5°F, or you’re planning insulation work and want proof of improvement rather than trusting contractor promises.
What it costs in Sunnyvale
A standalone blower-door test in Sunnyvale costs $350-$600; as part of a full home energy audit it’s included in the comprehensive price, with before-and-after testing on improvement jobs at no additional charge.
How we do it
We install a calibrated fan in an exterior door, depressurize the house to 50 Pascals, measure CFM50 leakage, and use smoke pencils and infrared to locate leaks while the fan runs, documenting every finding with photos.
Thermal Imaging Inspection
Signs you need it
Thermal imaging reveals what you can’t see - missing insulation in wall cavities, air leaks around windows, moisture intrusion in ceilings - and is essential before any renovation where you’re guessing at conditions behind drywall.
What it costs in Sunnyvale
Thermal imaging as part of a full audit in Sunnyvale runs $450-$850 depending on home size and whether we include duct leakage testing; standalone infrared inspection for a specific problem area is $300-$500.
How we do it
We scan every exterior wall, ceiling, and foundation with a FLIR camera during blower-door depressurization to maximize temperature differential, mark anomalies on floor plans, and provide images with temperature readings for each finding.
What Home Energy Audit Costs in Sunnyvale
| Item | Typical range in Sunnyvale |
|---|---|
| Standalone blower-door test | $350 - $600 |
| Full home energy audit with thermal imaging | $450 - $850 |
| Comprehensive audit with duct leakage test | $650 - $1,200 |
Will a home energy audit tell me what to fix first?
Yes - our audit report ranks improvements by cost-effectiveness using local PG&E rates and your specific leakage patterns, so you can phase work by budget rather than guessing; we never recommend work that doesn’t pay back. Call (669) 259-0406 to schedule.
How long does a home energy audit take?
A full audit takes 3-4 hours on site plus report preparation; we schedule morning slots when temperature differentials are strongest for thermal imaging accuracy, and deliver your written report with photos within 48 hours.
Brands We Service in Sunnyvale
We install and remove insulation materials from Johns Manville, Knauf, Rockwool, and CertainTeed - no proprietary lock-in means we specify what’s right for your home, not what we’re obligated to move. Our San Francisco Bay Area warehouse stocks common batts, blown-in, and rigid foam for Sunnyvale jobs with next-day availability on standard items. Our brands page lists full specifications.
Pricing for Insulation in Sunnyvale, CA
| Service | Typical range in Sunnyvale |
|---|---|
| Crawl space vapor barrier (floor only) | $1,200 - $2,800 |
| Full crawl space encapsulation | $3,500 - $7,500 |
| Attic radiant barrier | $1,500 - $3,200 |
| Radiant barrier with ventilation upgrade | $2,200 - $4,800 |
| Contaminated insulation removal | $1,800 - $3,500 |
| Attic insulation replacement (blown-in) | $2,500 - $5,000 |
| Top plate & penetration air sealing | $1,200 - $2,800 |
| Full attic air sealing | $2,200 - $4,500 |
| Drill & fill wall insulation | $2,500 - $5,500 |
| Injection foam wall insulation | $3,500 - $7,000 |
| Rodent proofing & exclusion | $1,500 - $3,500 |
| Full home energy audit | $450 - $850 |
Prices in Sunnyvale push higher when crawl spaces have extensive rot repair, when wall insulation requires interior drywall removal and replacement, or when Title 24 compliance demands specific R-values and density documentation that add labor. Every job still begins with a written price - flat, itemized, with scope and warranty documented before anyone lifts a tool, per Haven Standard Clause 1.
Neighborhoods We Serve in Sunnyvale
Our crews work throughout Sunnyvale with same-day or next-day response for most service calls, dispatching from our San Francisco Bay Area office to reach any of these neighborhoods within the hour during business hours.
- Lakewood
- Raynor Park
- Birdland
- Cherry Chase
- Ortega
Service Area - Cities Near Sunnyvale
We serve the full South Bay and Peninsula corridor, with regular work in Mountain View, CA to the north, Santa Clara, CA to the east, Cupertino, CA to the south, and Los Altos, CA to the west. Dispatch and scheduling are coordinated from our San Francisco Bay Area office; crews carry local permits and understand each city’s inspection requirements.
Serving Sunnyvale, CA - Our Local Coverage Area
We’re based in the Sunnyvale area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Insulation in Sunnyvale
Yes - the City of Sunnyvale requires permits for attic insulation replacement, wall insulation, and crawl space encapsulation when R-value is changed or when the work is part of a larger renovation; we pull permits as part of our scope and coordinate inspections so you don’t schedule them yourself.
We typically schedule assessments within 24-48 hours for non-emergency work, with same-day availability for active moisture or rodent issues; a live person answers at (669) 259-0406 to book directly without callback delays.
Some Sunnyvale neighborhoods with active HOAs, particularly newer developments, require architectural review for exterior changes like radiant barrier visible from vents or solar panel coordination; we provide product data sheets and installation details for HOA submission as part of our pre-work documentation.
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 1-hour.
- 4You approve before work beginsNothing starts until you say go.
What Sunnyvale Customers Say
"Crawl space encapsulation done properly. Photographs of the vapour barrier at every seam, and the damp smell in the hallway is gone."
- Ainsley P."Fixed price, clean work, and they hauled the old material away as agreed."
- Todd M."Two other companies quoted to blow more insulation on top of what was there. These were the only ones who said the existing material had to come out first, and explained why."
- Clifford E.