Insulation in Compton, CA
Crawl space encapsulation and vapor barrier installation in Compton typically runs $3,200-$6,800 for a full encapsulation with dehumidifier, while radiant barrier installation in Compton attics averages $1,400-$2,800. Most Compton homes we work on were built between 1945 and 1960 with zero original insulation, so the payback on proper envelope work here is faster than almost anywhere else in LA County. Call (424) 415-7031 for a written price before any work starts.
We’re Envelope Insulation Co., independently owned and operated under The Haven Standard since 2016. Dispatch and scheduling for Compton jobs are coordinated from our Los Angeles office, and our crews serve the city locally. Every job begins with a written price and ends with a Documented Photo Record; on applicable jobs, you’ll receive before-and-after blower-door numbers showing exactly how much air your home was losing.
Why Compton Homes Are Different
Compton’s housing stock is almost entirely 900-1,400 square foot stucco-over-wood-frame tract homes built during the post-WWII boom from 1945 to 1960. California had no insulation code during that era, so these homes went up with little to no wall-cavity insulation and often nothing in the attic beyond a thin layer of degraded rock wool or vermiculite. Decades of unpermitted garage conversions and rear-yard additions have created patchwork thermal envelopes where an insulated original room shares a ceiling with a completely uninsulated converted space.
Geography makes this a bigger problem in Compton than in coastal cities. Sitting 15-plus miles inland, Compton loses the marine-layer cooling that moderates beach temperatures. Summer afternoons regularly hit the mid-to-upper 90s, and heat lingers in poorly ventilated attics well past sunset. We’ve measured attic temperatures over 140°F in Compton homes during August, driving cooling loads that window AC units simply can’t handle. This inland heat signature means radiant barriers, attic air sealing, and proper insulation deliver faster payback here than in beach-adjacent neighborhoods just 10 miles west.
Compton’s designation as a California disadvantaged community under SB 535 also creates a significant opportunity: homeowners and renters may qualify for heavily subsidized or free insulation through the Low-Income Weatherization Program. Most competing contractors don’t actively help customers navigate this application process, which leaves a real gap for homeowners who want the work done but assume they can’t afford it.
Our Main Compton Services
Most Compton homeowners who call us start with attic work or spray foam. Here’s what those jobs look like in this market.
Attic Insulation in Compton
Attic insulation in Compton usually means addressing 60-plus years of heat buildup in a vented attic with degraded or missing material. We start with a blower-door test to measure air leakage, then seal top plates, can lights, and penetrations before adding any new insulation. In Compton’s inland climate, this sequence matters more than in coastal cities because the temperature delta between attic and living space is so extreme. Attic Insulation in Compton covers our full process, pricing, and what the documentation looks like when we finish.
Spray Foam Insulation in Compton
Spray foam makes sense in Compton for unconditioned additions, garage conversions, and homes where the thermal envelope is too fragmented for batt or blown-in to perform well. We use open-cell and closed-cell formulations from Owens Corning and Demilec, selected for the specific assembly rather than pushed as a default. In Compton’s older 2×4 walls, closed-cell can achieve code-compliant R-value in a cavity that batt insulation simply cannot fill. Spray Foam Insulation in Compton has the full breakdown.
Blown-In Insulation in Compton
Blown-in cellulose or fiberglass is the most common retrofit for Compton’s original attics, especially where homeowners want to improve R-value without the cost of spray foam. We use GreenFiber cellulose and Johns Manville fiberglass, blown to depth after air sealing is complete. In Compton’s hot climate, depth matters: we typically specify R-38 to R-49 in attics, which requires 10 to 14 inches of settled material depending on the product. Blown-In Insulation in Compton explains our density and coverage standards.
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 Compton
Compton’s post-war tract homes were built with vented crawl spaces on concrete perimeter foundations, and many have never been properly sealed. The combination of clay-heavy soils in the LA Basin and seasonal moisture migration creates conditions where fiberglass batt insulation between joists absorbs water, sags, and eventually falls. We regularly find Compton crawl spaces with saturated insulation hanging in strips and mold on the subfloor. Crawl Space Encapsulation & Vapor Barrier addresses this systematically by sealing the ground and walls, conditioning the space, and stopping the moisture cycle at its source.
Crawl Space Vapor Barrier
Signs you need it
You notice musty odors rising from floor registers, soft or cupping hardwood near exterior walls, or visible mold on joists during a routine plumbing check.
What it costs in Compton
A ground-only vapor barrier in a typical Compton crawl space runs $1,800-$3,200, while full encapsulation with sealed walls and dehumidifier starts around $3,200 and can reach $6,800 for larger or more complex spaces.
How we do it
We remove degraded existing material, grade the ground, lay 12-mil reinforced polyethylene with sealed seams, extend it 6 inches up foundation walls, and install a mechanical dehumidifier sized to the volume.
Crawl Space Encapsulation
Signs you need it
Your HVAC ducts run through the crawl space and your winter heating bills spike, or pest control has noted rodent activity in saturated insulation below the kitchen.
What it costs in Compton
Full encapsulation with wall sealing, rim-joist insulation, and dehumidification for a standard Compton crawl space typically falls between $3,200 and $6,800, with larger homes or those requiring extensive prep at the higher end.
How we do it
We seal all vents, insulate rim joists with rigid foam, apply vapor barrier to ground and walls, install a condensate-pumped dehumidifier, and provide before-and-after moisture readings with your photo documentation.
What Crawl Space Encapsulation & Vapor Barrier Costs in Compton
| Item | Typical range in Compton |
|---|---|
| Ground vapor barrier only | $1,800 - $3,200 |
| Full encapsulation with dehumidifier | $3,200 - $6,800 |
| Rim-joist insulation add-on | $800 - $1,600 |
How long does crawl space encapsulation take in Compton?
Most Compton crawl space jobs finish in two to three days. We coordinate with your schedule and provide a named technician with text alerts when they’re en route.
Will encapsulation help with musty smells?
Yes. Sealing the ground and controlling humidity eliminates the moisture that produces musty odors. We measure relative humidity before and after, and you’ll get those numbers in your documentation.
Radiant Barrier Installation in Compton
Compton’s inland location makes radiant barrier installation one of the highest-ROI envelope upgrades available. With summer attic temperatures regularly exceeding 130°F and heat radiating through undersized or uninsulated ceiling assemblies, a properly installed radiant barrier can reduce ceiling heat gain by 20-35 percent. We see the biggest impact in Compton’s original 1940s and 1950s tract homes, where the ceiling drywall is often the only thermal boundary between living space and attic. Radiant Barrier Installation starts with an assessment of your attic’s existing ventilation and insulation, because radiant barrier performance depends on proper air gap and orientation.
Attic Radiant Barrier
Signs you need it
Your ceiling feels hot to the touch on summer afternoons, rooms cool unevenly, or your window AC runs continuously without reaching the thermostat setting.
What it costs in Compton
Radiant barrier installation in a typical Compton attic runs $1,400-$2,800, with smaller homes or simple gable roofs at the lower end and larger homes with complex framing at the higher end.
How we do it
We staple perforated aluminum foil to the underside of roof rafters, maintaining a minimum 3/4-inch air gap on the attic side, and verify installation with infrared imaging to confirm no contact points that would conduct heat.
Radiant Barrier Roof Deck
Signs you need it
You’re re-roofing a Compton home and want to address attic heat gain without losing storage space to added insulation depth.
What it costs in Compton
Radiant barrier roof deck application during re-roofing in Compton typically adds $1,800-$3,400 to the roofing scope, depending on pitch complexity and whether we’re working with new sheathing or retrofitting existing.
How we do it
We apply radiant barrier sheathing or foil-faced decking directly to the roof structure during tear-off, integrating with the roofing contractor’s schedule and providing blower-door and thermal images in your final documentation.
What Radiant Barrier Installation Costs in Compton
| Item | Typical range in Compton |
|---|---|
| Attic radiant barrier (foil to rafters) | $1,400 - $2,800 |
| Radiant barrier roof deck (during re-roof) | $1,800 - $3,400 |
| Radiant barrier with attic air sealing package | $2,400 - $4,200 |
Does radiant barrier work without attic insulation?
It helps, but not enough. Radiant barrier blocks radiant heat transfer; without insulation below it, conduction still moves heat through the ceiling. We always assess whether your attic needs both.
How much can I save on cooling?
Compton homeowners with radiant barrier and proper attic insulation typically see 10-25 percent cooling load reduction. Your actual savings depend on current insulation, duct location, and how you cool the home.
Insulation Removal & Replacement in Compton
Compton’s housing age means we remove a lot of material that never should have lasted this long: degraded fiberglass, vermiculite that may contain asbestos, and cellulose compromised by rodent activity or roof leaks. The unpermitted additions common throughout Compton compound the problem, with multiple insulation types and eras layered in ways that trap moisture rather than manage it. We don’t add new material over old; removal and replacement is the only way to get a clean thermal boundary and the documentation that proves it. Insulation Removal & Replacement follows a containment and disposal protocol that protects your living space during the process.
Contaminated Insulation Removal
Signs you need it
You’ve found rodent droppings in the attic, smelled urine when the HVAC runs, or seen insulation compressed and stained in patterns that indicate nesting activity.
What it costs in Compton
Contaminated insulation removal in a typical Compton attic runs $2,200-$4,600, with severe contamination or limited attic access pushing toward the higher end.
How we do it
We establish negative air containment, remove material with HEPA-filtered vacuums, apply EPA-registered sanitizer to exposed surfaces, and provide photo documentation of the cleaned cavity before any new insulation goes in.
Vermiculite & Old Insulation Removal
Signs you need it
Your attic contains gray-brown granular material that looks like small pebbles, or your home was built before 1980 and the insulation history is unknown.
What it costs in Compton
Vermiculite removal in Compton, which requires asbestos-safe handling protocols, typically ranges from $4,000-$8,500 depending on volume, access, and lab confirmation requirements.
How we do it
We collect a sample for lab analysis, and if asbestos is confirmed, we engage a licensed abatement contractor under our supervision; you receive the lab report, abatement certificate, and photo record in your documentation package.
What Insulation Removal & Replacement Costs in Compton
| Item | Typical range in Compton |
|---|---|
| Standard insulation removal (attic) | $1,800 - $3,600 |
| Contaminated insulation removal | $2,200 - $4,600 |
| Vermiculite removal (asbestos protocol) | $4,000 - $8,500 |
Can I stay in the house during removal?
For standard removal, yes. For vermiculite or heavy contamination, we may recommend temporary relocation during active abatement. We discuss this during the scope review, before any work starts.
What happens to the old insulation?
We bag it on-site, transport it to licensed disposal facilities, and provide waste manifests for your records. You get copies with your photo documentation.
Attic Air Sealing in Compton
Air sealing is the foundation of every attic job we do in Compton, and it’s where we see the biggest performance gaps in this market. The 1940s and 1950s tract homes here were built with no attention to the pressure boundary: top plates are open to the attic, can lights cut through ceiling drywall with no gasket, and duct boots sit in unconditioned space with visible gaps. Compton’s inland heat makes these leaks expensive, because every cubic foot of conditioned air that escapes is replaced by 95-degree air the AC must then cool. We never install insulation over an unsealed attic floor; the blower-door test proves why. Attic Air Sealing is documented with before-and-after pressurization readings on every job.
Top Plate & Penetration Sealing
Signs you need it
You feel drafts from ceiling fixtures on windy days, or your blower-door test shows excessive leakage at the ceiling plane despite adequate wall insulation.
What it costs in Compton
Top plate and penetration sealing in a typical Compton attic runs $1,600-$3,200, with complex framing or multiple plumbing and electrical penetrations at the higher end.
How we do it
We access top plates by moving existing insulation aside, seal gaps with fire-rated caulk and foam, install rigid blocking where needed, and verify with blower-door testing before replacing insulation.
Can Light & Duct Boot Sealing
Signs you need it
Your can lights flicker when the attic gets hot, or you feel conditioned air blowing into the attic when the HVAC runs with the hatch open.
What it costs in Compton
Can light and duct boot sealing in Compton typically adds $800-$1,800 to an air-sealing scope, with the number and accessibility of fixtures determining final price.
How we do it
We replace non-IC-rated cans with airtight LED housings, seal duct boots with mastic and mechanical fasteners, and pressure-test the HVAC system to confirm no leakage to attic space.
What Attic Air Sealing Costs in Compton
| Item | Typical range in Compton |
|---|---|
| Top plate and penetration sealing | $1,600 - $3,200 |
| Can light and duct boot sealing | $800 - $1,800 |
| Full attic air sealing (comprehensive) | $2,400 - $4,600 |
How much does air sealing reduce my bills?
Compton homeowners typically see 15-30 percent reduction in heating and cooling loads after comprehensive attic air sealing, verified by blower-door testing. The actual figure depends on your starting leakage and what insulation is added after sealing.
Can you air seal without adding insulation?
Yes, though we usually recommend both. Air sealing alone improves comfort and reduces drafts; pairing it with proper insulation delivers the full thermal performance. We scope each component separately so you can decide.
Wall Insulation in Compton
Wall insulation in Compton means retrofitting 2×4 exterior walls that were built empty. California’s first insulation code didn’t arrive until 1978, so every Compton home from the 1940s and 1950s went up with uninsulated wall cavities. The stucco exterior makes these homes look intact, but thermal imaging reveals the reality: studs show as cold stripes in winter and hot stripes in summer, with no cavity insulation to slow heat transfer. Compton’s inland temperature extremes make this more consequential than in coastal cities, and the unpermitted additions throughout the city often mean some walls are insulated while adjacent walls are completely open. Wall Insulation addresses this with methods that don’t require full siding removal.
Drill & Fill Wall Insulation
Signs you need it
Your exterior walls feel hot or cold to the touch, rooms on north and south sides of the house vary by more than 5 degrees, or you’ve confirmed empty cavities with a thermal camera.
What it costs in Compton
Drill-and-fill wall insulation for a typical Compton home runs $2,800-$5,400, with stucco repair and matching adding $400-$800 to the scope.
How we do it
We drill 2-inch holes at stud-bay intervals, blow dense-pack cellulose to 3.5 pounds per cubic foot to prevent settling, patch with matching stucco texture, and provide thermal images showing the before-and-after wall performance.
Injection Foam Wall Insulation
Signs you need it
Your walls contain some old batt insulation that has settled or degraded, or you need higher R-value in a 2×4 cavity than cellulose can achieve.
What it costs in Compton
Injection foam for a typical Compton home ranges $3,400-$6,200, with open-cell and closed-cell options priced separately based on the target R-value and any moisture-management requirements.
How we do it
We access walls through interior or exterior, inject slow-rise foam to fill the cavity without bowing studs, trim excess after cure, and verify complete fill with thermal imaging from both sides of the wall.
What Wall Insulation Costs in Compton
| Item | Typical range in Compton |
|---|---|
| Drill-and-fill cellulose (typical home) | $2,800 - $5,400 |
| Injection foam (typical home) | $3,400 - $6,200 |
| Stucco repair and matching | $400 - $800 |
Will drill-and-fill damage my stucco?
We drill through the stucco and patch with color-matched material. The patches are visible up close for several weeks until weathering blends them; we use your original stucco texture where possible.
How much R-value can you get in a 2×4 wall?
Dense-pack cellulose achieves R-13 to R-15 in a 2×4 cavity. Closed-cell foam reaches R-20 to R-23 but at higher cost. We recommend based on your budget and performance goals, not a default product.
Attic Cleaning & Rodent Proofing in Compton
Attic cleaning and rodent proofing is a common first step in Compton before any insulation work can begin. The mature trees in established neighborhoods, combined with original construction that left multiple entry points at eaves and roof-wall junctions, means rodent activity in attics is routine rather than exceptional. We find droppings, nesting material, and degraded insulation in roughly half the Compton attics we assess. Cleaning and sealing must happen before new insulation goes in; installing over contamination traps odors, reduces insulation effectiveness, and violates the Haven Standard. Attic Cleaning & Rodent Proofing provides the documented clean slate that every subsequent envelope upgrade requires.
Attic Sanitizing & Decontamination
Signs you need it
You’ve heard scratching in the ceiling, found droppings during a storage trip to the attic, or noticed insulation disturbed in tunnel patterns.
What it costs in Compton
Attic sanitizing and decontamination in Compton runs $1,400-$3,200, with heavy contamination or large attic footprints at the higher end.
How we do it
We remove contaminated insulation and debris, apply enzymatic cleaner to break down organic material, fog with EPA-registered sanitizer, and provide photos of the cleaned deck before any repairs or new insulation.
Rodent Proofing & Exclusion
Signs you need it
Pest control has trapped rodents but they keep returning, or you’ve found gnaw marks on fascia boards and gaps at roof junctions larger than a quarter-inch.
What it costs in Compton
Rodent proofing and exclusion for a typical Compton home ranges $1,200-$2,800, with multiple entry points, steep roof access, or extensive soffit repair pushing toward the higher end.
How we do it
We inspect every roof-wall junction, eave, vent, and penetration with a camera, seal entry points with rodent-proof materials, install hardware cloth over necessary vents, and provide a written exclusion report with photo documentation of each sealed location.
What Attic Cleaning & Rodent Proofing Costs in Compton
| Item | Typical range in Compton |
|---|---|
| Attic sanitizing and decontamination | $1,400 - $3,200 |
| Rodent proofing and exclusion | $1,200 - $2,800 |
| Full attic restoration (cleaning + proofing + insulation) | $4,200 - $8,600 |
Do you handle the rodents or just seal after?
We partner with licensed pest control for active infestations, then perform exclusion and cleaning. We don’t trap or bait; we make sure they can’t get back in and clean up what they left behind.
How long before I can use my attic again?
After sanitizing, we recommend 24 hours with the attic hatch open for ventilation. Once new insulation is installed, the space is ready for light storage immediately, though we caution against compressing insulation with heavy items.
Home Energy Audit in Compton
A home energy audit in Compton is the most efficient way to prioritize envelope work in a house with 60-plus years of deferred maintenance and patchwork additions. We use the blower-door test, thermal imaging, and duct leakage testing to map exactly where your conditioned air is escaping and in what order the fixes should happen. Compton’s inland heat signature means the cost of not knowing is higher here than in coastal cities: every unsealed penetration and under-insulated cavity drives cooling loads that window units and aging central systems struggle to meet. Home Energy Audit produces a written scope with prioritized recommendations and fixed prices for each item.
Blower Door Test
Signs you need it
Your energy bills seem high for your home size, rooms are consistently uncomfortable, or you’re planning insulation work and want to measure the improvement.
What it costs in Compton
A standalone blower-door test in Compton runs $350-$650, and is credited toward any envelope work we perform within 90 days.
How we do it
We install a calibrated fan in an exterior door, depressurize the house to 50 Pascals, and measure CFM50 - the cubic feet per minute of air leakage at standard pressure - to establish your baseline and identify leak locations with smoke pencils and thermal imaging.
Thermal Imaging Inspection
Signs you need it
You suspect missing insulation in walls or ceilings, have had ice damming or moisture issues, or want visual proof of thermal defects before committing to work.
What it costs in Compton
Thermal imaging as part of a full audit runs $250-$450 standalone, or included in our comprehensive audit package at $450-$750.
How we do it
We scan interior and exterior surfaces with a FLIR camera during controlled temperature differential conditions, annotate images with surface temperatures and defect descriptions, and include them in your written report with recommended remediation.
What Home Energy Audit Costs in Compton
| Item | Typical range in Compton |
|---|---|
| Blower-door test (standalone) | $350 - $650 |
| Thermal imaging inspection | $250 - $450 |
| Comprehensive home energy audit | $450 - $750 |
What does the audit report include?
You receive a written scope with blower-door and thermal images, prioritized recommendations with fixed prices, and estimated annual savings for each measure. No vague suggestions; every item has a number attached.
Is an audit required before other work?
Not required, but recommended. In Compton’s older housing stock, an audit often reveals that air sealing delivers more comfort per dollar than adding insulation. We want you to know that before we start.
Brands We Service in Compton
We source insulation and air-sealing materials from Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber. No proprietary lock-in means we specify what performs for your specific assembly, not what moves our inventory. Most materials are stocked regionally with next-day availability for standard Compton jobs. our brands
Pricing for Insulation in Compton, CA
| Service | Typical range in Compton |
|---|---|
| Attic air sealing (comprehensive) | $2,400 - $4,600 |
| Attic radiant barrier | $1,400 - $2,800 |
| Blown-in attic insulation | $2,200 - $4,400 |
| Contaminated insulation removal | $2,200 - $4,600 |
| Crawl space encapsulation (full) | $3,200 - $6,800 |
| Drill-and-fill wall insulation | $2,800 - $5,400 |
| Home energy audit (comprehensive) | $450 - $750 |
| Rodent proofing and exclusion | $1,200 - $2,800 |
| Spray foam insulation (open cell) | $3,600 - $7,200 |
| Vermiculite removal (asbestos protocol) | $4,000 - $8,500 |
Prices in Compton push higher when we encounter unpermitted additions with inaccessible cavities, active roof leaks that must be resolved first, or vermiculite requiring lab testing and abatement coordination. Every job still starts with a written price before any work starts, under Haven Standard Clause 1. No surprises, no open-ended hourly billing.
Neighborhoods We Serve in Compton
Our crews work throughout Compton, from the older tracts near Compton Boulevard to the post-war neighborhoods east of Alondra Park. Response time is typically same-day or next-day for assessments, with most work scheduled within one week of written approval.
- Richmond Farms
- Compton Woodley Airport area
- South Compton
- East Compton
- Rancho Dominguez
Service Area - Cities Near Compton
We serve Compton directly and coordinate with homeowners in surrounding communities. If you’re near the Compton border in Carson, CA, Lynwood, CA, Paramount, CA, or Torrance, CA, the same crews and scheduling apply. Call (424) 415-7031 and we’ll confirm coverage and response time for your address.
Serving Compton, CA - Our Local Coverage Area
We’re based in the Compton 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 Compton
Attic insulation and air sealing typically don’t require permits in Compton, but wall insulation, spray foam in occupied spaces, and any electrical or HVAC modifications do. We handle permit research as part of our scope and include any fees in your written price.
Most Compton assessments happen within 24-48 hours of your call. Work starts within 3-7 business days after you approve the written scope, or faster for urgent situations like active roof leaks or failed HVAC in extreme heat.
Yes. Compton’s SB 535 designation means many homeowners qualify for subsidized or free insulation through the Low-Income Weatherization Program. We help eligible customers navigate the application and provide the contractor documentation the program requires.
Ready to see what your home is actually losing? Call (424) 415-7031 for a free estimate. We’ll provide a written price before any work starts, and you’ll walk away with documented evidence of the results.
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 the hour.
- 4You approve before work beginsNothing starts until you say go.
What Compton Customers Say
"They photographed rodent damage in the old insulation that we had no idea about, and priced the exclusion work separately so we could decide."
- Harriet N."The winter gas bill dropped by about a third. They had estimated a quarter, so they under-promised."
- Genevieve R."They air-sealed the attic floor before insulating and showed me the blower-door number before and after. The upstairs is finally the same temperature as downstairs."
- Marisol D.