Insulation in Quartz Hill, CA
Spray foam insulation in Quartz Hill does something no other material can do here: it seals the building envelope against the Antelope Valley’s relentless wind while holding its R-value through a climate that swings roughly 80°F between January and July. Prime Insulation Lancaster has served Quartz Hill since 2014, and our Owner & Lead Installer personally assesses every attic, wall cavity, and crawl space before a single recommendation is made. Call (661) 545-6966 for a home energy assessment that starts with how your specific house was built, not with a pitch.
Why Quartz Hill Homes Are Different
Quartz Hill sits in the western Antelope Valley high desert, where summer highs routinely top 105°F and winter nights dip to the low 20s°F. That’s a seasonal swing coastal cities never experience, and it explains why insulation installed in the 1970s and ’80s rarely performs the way its original R-value sticker suggested. Most of the single-story ranch tract homes across Quartz Hill were built to Title 24 standards calibrated for milder California zones. The vented attics over those homes become heat traps in July: we’ve measured attic temperatures above 160°F, which accelerates batt degradation and forces HVAC ducts running through unconditioned space to work against the house.
The wind changes the equation further. Persistent regional winds drive air through every unsealed top plate, can light, and attic hatch, which means the effective performance of existing insulation drops even when the material itself hasn’t visibly failed. A house west of 50th Street West with original fiberglass batts and no air sealing is fighting two separate losses: conductive heat gain from the roof plane and convective air exchange through the ceiling. We audit for both.
Our Main Quartz Hill Services
Two services dominate the calls we take from Quartz Hill homeowners, because they address the two largest failure points in this housing stock: under-insulated attics and vented crawls that pull moist, hot air against the floor framing.
Attic Insulation in Quartz Hill
Most Quartz Hill attics we enter have settled, degraded fiberglass batts far below current desert-climate recommendations. The stack effect pulls attic heat through the ceiling plane and pushes conditioned air out through the vents, which means the HVAC system runs longer to hold a set temperature. We start every attic job by checking the existing material’s actual depth and condition, then match the replacement to the roof pitch and the home’s solar exposure. Full details: Attic Insulation in Quartz Hill.
Crawl Space Encapsulation & Vapor Barrier in Quartz Hill
Vented crawl spaces in Quartz Hill pull in outside air that’s either 105°F and bone dry or 25°F and damp, depending on the season. That swings the temperature of the floor assembly and shortens the life of floor insulation. We seal the vents, line the ground with a reinforced vapor barrier, and condition the space so the crawl stops acting as an open-air chamber under the living area. Read about it here: Crawl Space Encapsulation & Vapor Barrier in Quartz Hill.
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.
Spray Foam Insulation in Quartz Hill
Spray foam is the right first conversation for many Quartz Hill homes because it addresses both the thermal and the air-infiltration problem in a single application. Closed-cell foam at the roof deck converts a vented attic into a semi-conditioned space, which means your HVAC ducts stop losing efficiency into a 160°F cavity. Open-cell foam at the attic floor stops the wind-driven air exchange that makes older homes in this valley feel leaky no matter how many batts are stacked on top. We install both Icynene and Demilec systems, and our lead installer applies every inch of it personally. Full technical detail is on our Spray Foam Insulation hub page.
Open-Cell Spray Foam
Signs you need it
Your attic access hatch shows daylight around its perimeter or you can feel a draft through the ceiling on windy days, both signs the air barrier has never actually been established.
What it costs in Quartz Hill
Open-cell foam installed at the attic floor or roof deck in Quartz Hill typically runs $1.90–$2.90 per board foot, with full attic applications landing between $4,000 and $8,500 depending on square footage and roof pitch.
How we do it
We first clear the attic of any debris and verify the venting plan, then spray the foam to the specified depth, checking every pass for consistent expansion. The foam cures within a day, after which we verify the air-sealing results.
Closed-Cell Spray Foam
Signs you need it
Your attic HVAC ducts sweat in summer or your home’s cooling load never drops even after the sun goes down, which suggests the roof deck’s thermal transfer is the dominant loss path.
What it costs in Quartz Hill
Closed-cell foam in Quartz Hill runs $2.80–$4.10 per board foot, with a typical 1,500-square-foot roof deck landing between $8,500 and $15,000.
How we do it
We spray a minimum two-inch pass at the roofline, which creates both a vapor retarder and a structural bond. The roof deck becomes the thermal boundary, and the existing attic remains insulated from the radiated heat rather than absorbing it.
Rim Joist Spray Foam
Signs you need it
Your floor temperature near exterior walls runs 10–15°F colder than the room center in winter, pointing to open rim joists admitting outside air directly under the floor assembly.
What it costs in Quartz Hill
Sealing rim joists with spray foam in Quartz Hill costs $650–$1,400 for an average single-story ranch home, based on the perimeter length and joist spacing.
How we do it
We remove any old fiberglass stuffed in the rim cavities, then spray a continuous foam band across the rim joist and sill plate. The seal blocks both air and thermal bridging at the floor line.
What Spray Foam Insulation Costs in Quartz Hill
| Item | Typical range in Quartz Hill |
|---|---|
| Open-cell foam (per board foot) | $1.90–$2.90 |
| Closed-cell foam (per board foot) | $2.80–$4.10 |
| Full attic with open-cell | $4,000–$8,500 |
| Rim joist sealing | $650–$1,400 |
Will spray foam make my Quartz Hill home too airtight?
No, not at a level that matters for comfort. Foam seals the uncontrolled leaks that rob your cooling, but your home still breathes through doors, windows, and mechanical ventilation. We size any ventilation changes to the house’s actual square footage.
Can you spray foam my existing Quartz Hill attic without removing the old insulation?
Yes for roof deck applications, where the old floor insulation can stay in place. But if you’re foaming the attic floor or converting the attic to a conditioned space, the old material must come out first so the foam bonds cleanly to the deck. Call (661) 545-6966 for a site-specific answer.
Blown-In Insulation in Quartz Hill
Blown-in insulation is often the most cost-effective correction for the original, settled fiberglass batts we find in Quartz Hill attics built before about 1995. A fresh blow of cellulose or fiberglass at a true R-38 to R-49 depth works with the vented attic design these ranch homes were built around, so there’s no need to alter the roof’s venting strategy. We run Knauf and GreenFiber products here because they hold their loft through the valley’s dry air cycles. Details on materials and coverage are on our Blown-In Insulation page.
Blown-In Cellulose
Signs you need it
Your attic insulation measures under 6 inches deep across most of the floor, the classic settled-batt condition found in 1970s and ’80s Quartz Hill builds.
What it costs in Quartz Hill
Blown-in cellulose in a Quartz Hill attic runs $1.10–$2.60 per square foot, with a typical 1,500-square-foot attic falling between $1,650 and $3,900.
How we do it
We first verify the attic’s venting and seal any bypasses, then blow cellulose to a consistent depth across the full floor. The material settles slightly, so we over-blow by the manufacturer’s specified percentage.
Blown-In Fiberglass
Signs you need it
You want additional insulation depth but the home has can lights or recessed fixtures that need clearance, or you want a lower-dust installation.
What it costs in Quartz Hill
Blown-in fiberglass in Quartz Hill run $1.30–$2.90 per square foot, or $2,000–$4,400 for a full 1,500-square-foot attic.
How we do it
We install fiberglass to the target depth, checking density with a depth gauge as we work. The material is non-combustible and holds its depth well in Quartz Hill’s dry climate.
What Blown-In Insulation Costs in Quartz Hill
| Item | Typical range in Quartz Hill |
|---|---|
| Cellulose (per sq ft) | $1.10–$2.60 |
| Fiberglass (per sq ft) | $1.30–$2.90 |
| Full attic with cellulose | $1,650–$3,900 |
| Full attic with fiberglass | $2,000–$4,400 |
What R-value do Quartz Hill attics actually need?
Current recommendations for high-desert climates put attics at R-49 to R-60. Most original Quartz Hill homes we measure sit at R-11 to R-19 effective. The gap is the entire problem.
Is blown-in insulation good enough for Quartz Hill’s summer heat?
Yes, at the right depth. The key is air sealing first: wind-driven infiltration can cut a blown-in attic’s real performance by 30 percent or more. Call us at (661) 545-6966 to have the whole ceiling plane checked rather than just adding depth.
Radiant Barrier Installation in Quartz Hill
A radiant barrier attacks the specific failure mode this valley creates: radiation from a 140°F roof deck heat-loading the insulation below it. In a Quartz Hill attic, a foil-faced barrier stapled to the rafter faces can cut radiant heat transfer into the attic by up to 40 percent, which takes direct pressure off your HVAC system every July afternoon. It’s not a substitute for insulation depth, but it’s the most targeted layer you can add to a low-pitched ranch roof. Our Radiant Barrier Installation hub covers the full material options.
Attic Radiant Barrier
Signs you need it
Your attic is hotter than the outdoor air in summer, or your air conditioner runs continuously from noon to 8 p.m. without hitting the setpoint.
What it costs in Quartz Hill
Attic radiant barrier in Quartz Hill runs $1.50–$2.80 per square foot, with a full 1,500-square-foot attic falling between $2,250 and $4,200.
How we do it
We staple a perforated foil face across the rafter bays, leaving the ridge and soffit vents clear. The barrier reflects radiant heat before it ever enters the attic air mass.
Radiant Barrier & Ventilation
Signs you need it
Your attic has only the original gable or box vents, likely under-sized for a modern Quartz Hill heat load, and the roof sheathing is hotter than it should be even at night.
What it costs in Quartz Hill
Radiant barrier plus ventilation upgrades in Quartz Hill runs $2.20–$4.00 per square foot, or $3,300–$6,000 for a typical ranch home.
How we do it
We install the barrier and then verify the venting math: a balanced intake at the soffits and outflow at the ridge or high gable. The two systems work together; a barrier in an under-vented attic just traps the heat lower.
What Radiant Barrier Installation Costs in Quartz Hill
| Item | Typical range in Quartz Hill |
|---|---|
| Attic radiant barrier (per sq ft) | $1.50–$2.80 |
| Full attic | $2,250–$4,200 |
| Barrier with ventilation | $2.20–$4.00 per sq ft |
| Combined full project | $3,300–$6,000 |
Will a radiant barrier alone fix my Quartz Hill cooling bill?
It helps most when paired with existing insulation depth. In homes with only R-11 in the attic, the conductive loss still dominates. We recommend a barrier as part of a complete attic retrofit, not as a standalone fix. For an exact recommendation, call (661) 545-6966.
Does a radiant barrier work in winter?
Yes, though the winter benefit is smaller. The foil also reflects a portion of interior heat back down through the ceiling, which has a modest effect on heating bills during Quartz Hill’s cold nights.
Insulation Removal & Replacement in Quartz Hill
The original insulation in many Quartz Hill homes has gone through 40-plus years of 160°F attic summers, which bakes the binder out of fiberglass batts and compacts the material. When you remove the old layer first, you eliminate the rodent droppings, dust, and degraded material that would otherwise sit under whatever new insulation you install. We’ve pulled out batts from houses west of 50th Street West that were essentially paper and air. Full scope is on our Insulation Removal & Replacement page.
Attic Insulation Removal
Signs you need it
You’re planning new insulation or an HVAC replacement, and the existing attic material is compacted, dusty, or has visible animal activity. The new layer should never be installed over failed old material.
What it costs in Quartz Hill
Attic insulation removal in Quartz Hill runs $1.80–$3.60 per square foot, with a full removal on a typical ranch attic landing between $2,700 and $5,400.
How we do it
We bring in a high-volume vacuum system and remove material in bags, down to the decking surface. The attic is left clean enough to inspect the electrical and framing before new insulation goes in.
Contaminated Insulation Removal
Signs you need it
You smell rodent waste in the attic or find droppings in the insulation itself, which means the material is contaminated and should not be buried under new layers.
What it costs in Quartz Hill
Contaminated insulation removal in Quartz Hill adds a sanitation step and runs $2.50–$5.00 per square foot, or $3,750–$7,500 for a full attic.
How we do it
We remove the contaminated material fully, then apply a treatment to the attic surfaces before any new material is installed. The step is mandatory, not optional, when rodent waste is present.
What Insulation Removal & Replacement Costs in Quartz Hill
| Item | Typical range in Quartz Hill |
|---|---|
| Attic removal (per sq ft) | $1.80–$3.60 |
| Full attic removal | $2,700–$5,400 |
| Contaminated removal | $2.50–$5.00 per sq ft |
| Removal + new blown-in | $4,500–$9,000 |
Do I have to remove old insulation before adding new?
Not always, no. If the old material is dry, clean, and not compressed, blowing more on top can be fine. But in Quartz Hill’s conditions we find rodent contamination or degradation in most homes built before 1990. Call (661) 545-6966 and we’ll tell you honestly which path your attic needs.
Why does removal cost so much if the material is going to the dump?
Because doing it correctly means containing dust, protecting the living space, and working in a hot, cramped attic under Quartz Hill conditions. The labor is the cost, not the disposal. A rushed removal ruins the air quality in the house for weeks.
Attic Air Sealing in Quartz Hill
Air sealing is the step Quartz Hill homes miss more than any other, because the Antelope Valley’s persistent wind punishes every gap in the ceiling plane. A vented attic only works when the attic air stays in the attic; once the wind pushes that air through top plates and can lights, your insulation’s effective R-value crashes. We air seal before we insulate, every time, because the sequence matters. Methodology lives on our Attic Air Sealing hub.
Top Plate & Penetration Sealing
Signs you need it
Your interior ceiling feels warm to the touch in summer even with insulation above it, which points to air bypassing the insulation entirely at the wall-attic junction.
What it costs in Quartz Hill
Top plate and penetration sealing in Quartz Hill runs $400–$1,100 for a typical ranch home, depending on the linear footage of wall-attic junctions and the number of penetrations.
How we do it
We pull back the existing insulation at the perimeter, seal the top plates and every wire or pipe penetration with foam and caulk, then restore the insulation over the sealed areas.
Can Light & Duct Boot Sealing
Signs you need it
Your recessed can lights feel warm to the touch in summer, or you can see a gap between the drywall and the fixture from the attic side, both signs of a direct path between attic and room air.
What it costs in Quartz Hill
Sealing can lights and duct boots in Quartz Hill runs $250–$700 for an average home, based on fixture count and accessibility.
How we do it
We install proper covers or sealed boxes over each can from the attic side, and seal every duct boot to the ceiling drywall. The fixture stays code-compliant and the air path is closed.
What Attic Air Sealing Costs in Quartz Hill
| Item | Typical range in Quartz Hill |
|---|---|
| Top plate sealing | $400–$1,100 |
| Can light & duct boot sealing | $250–$700 |
| Full attic air sealing | $800–$1,700 |
| Sealing + insulation | $2,500–$6,500 |
How much can air sealing save on a Quartz Hill energy bill?
Proper air sealing typically cuts the air exchange rate by 50-70 percent in older tract homes, which often translates to a 15-30 percent reduction in heating and cooling in this wind-driven climate. The leakage rate depends on your home, which is why we test before quoting. Call (661) 545-6966.
Should I air seal before or after installing new insulation?
Before. Always before. Sealing over fresh insulation means working through the material, which is slower and less thorough. The correct sequence is seal first, then insulate to depth.
Wall Insulation in Quartz Hill
Wall insulation in Quartz Hill changes the equation for the many 1970s and ’80s ranch homes built with either thin R-11 batts or, in some cases, air space only. The high desert sun pounds the exterior walls from June through September, and a wall with a low effective R-value simply hands the heat indoors. The fix is usually injection foam or drill-and-fill dense-pack, because opening the drywall in a finished home is rarely the right answer. We cover the details on our Wall Insulation page.
Injection Foam Wall Insulation
Signs you need it
Your interior walls facing south and west feel warm to the touch by mid-afternoon, or the rooms on those walls run 5-10°F warmer than the rest of the house in summer.
What it costs in Quartz Hill
Injection foam wall insulation in Quartz Hill runs $5.50–$10.00 per square foot of wall area, with a full exterior wall retrofit on a ranch home landing between $6,000 and $14,000.
How we do it
We drill small access holes through the stucco or siding at each stud bay, inject the foam to fill the cavity, then patch each hole. The result is a wall that finally has a continuous thermal barrier.
Drill & Fill Wall Insulation
Signs you need it
Your home was built before the mid-1980s and the walls feel hollow when you knock, or the heating system short-cycles on winter nights because the walls themselves are the loss path.
What it costs in Quartz Hill
Drill-and-fill dense-pack wall insulation in Quartz Hill runs $4.00–$8.00 per square foot of wall area, or $5,000–$11,000 for a typical single-story home.
How we do it
We dense-pack either cellulose or fiberglass through access holes at each cavity, checking fill density as we go. The material is blown under pressure so it fills the cavity completely without sagging over time.
What Wall Insulation Costs in Quartz Hill
| Item | Typical range in Quartz Hill |
|---|---|
| Injection foam (per sq ft) | $5.50–$10.00 |
| Drill & fill (per sq ft) | $4.00–$8.00 |
| Full wall retrofit | $5,000–$14,000 |
| Interior wall soundproofing | $3.50–$6.50 per sq ft |
Can you insulate my Quartz Hill walls without tearing out the drywall?
Yes. Injection foam and drill-and-fill both access the cavities from the exterior or through small interior access points, with no drywall demolition. The holes are patched cleanly when the work is done.
How do I know if my walls are already insulated?
The fastest way is a thermal imaging scan during a home energy audit, which shows the temperature signature of each wall cavity. We can also pull an outlet cover and check the cavity directly. Call (661) 545-6966 for a wall insulation assessment.
Attic Cleaning & Rodent Proofing in Quartz Hill
Quartz Hill attics become prime real estate for roof rats and mice during the cold snaps, when the animals seek out the warm, protected space above the ceiling. What they leave behind contaminates the existing insulation and forces the question of whether it can stay or must go. We clean the attic down to the decking, treat the surfaces, and seal every entry point before any new insulation is installed. The full sequence is on our Attic Cleaning & Rodent Proofing page.
Attic Cleanout
Signs you need it
You see droppings in the insulation, hear activity overhead at night, or find nesting material near the eaves, all of which mean the attic environment is compromised.
What it costs in Quartz Hill
Attic cleanout in Quartz Hill runs $1,200–$3,500 for a typical ranch home, depending on attic size and the volume of contaminated material.
How we do it
We remove all debris, nesting, and contaminated insulation, vacuum the surfaces, and leave the attic empty and visible for a full inspection of framing, wiring, and ductwork.
Rodent Proofing & Exclusion
Signs you need it
You’ve had rodents before and the entry points were never sealed, or you see gaps at the roofline, vents without screens, or open chases into the attic.
What it costs in Quartz Hill
Rodent proofing and exclusion in Quartz Hill runs $800–$2,500, based on the number of entry points and the roofline’s accessibility.
How we do it
We seal every gap with metal mesh, steel wool, or foam as appropriate to the location, and install proper vent screens. The goal is a closed attic that animals cannot re-enter.
What Attic Cleaning & Rodent Proofing Costs in Quartz Hill
| Item | Typical range in Quartz Hill |
|---|---|
| Attic cleanout | $1,200–$3,500 |
| Rodent proofing & exclusion | $800–$2,500 |
| Cleanout + sanitizing | $1,800–$4,500 |
| Full restore + reinsulation | $4,000–$10,000 |
Should I clean the attic before or after rodent proofing?
Both, in sequence: proof first so no new animals enter, then clean. If you clean first and leave the entry points open, the problem returns in weeks. We do both as a single job.
How often should a Quartz Hill attic be cleaned?
For most homes, a full cleanout is a once-per-decade event unless there’s an active infestation. The better standard is to proof the attic correctly once, then inspect it annually when the weather shifts. Call (661) 545-6966 for an inspection.
Home Energy Audit in Quartz Hill
A home energy audit in Quartz Hill starts with the honest observation that you cannot fix what you haven’t measured. The houses here lose energy through a combination of conduction, air leakage, and duct losses, and the proportion of each is different in every building. We bring a blower door, thermal camera, and duct tester to the job and measure all of it. The audit is a standalone service, not a freebie attached to a sales pitch. Our Home Energy Audit page explains the testing in detail.
Blower Door Test
Signs you need it
Your home feels drafty on windy days, the HVAC runs constantly, or rooms at opposite ends of the house differ by more than 5°F, all indicators of excess air infiltration.
What it costs in Quartz Hill
A standalone blower door test in Quartz Hill runs $250–$500, and is always included in the full home energy audit we perform.
How we do it
We mount a calibrated fan in an exterior door frame and depressurize the house, then measure the airflow required to hold a standard pressure. The number tells us exactly how leaky the home is, in CFM.
Thermal Imaging Inspection
Signs you need it
You have rooms that never reach the thermostat setpoint, or you can feel cold spots on the walls in winter and warm spots on the ceiling in summer.
What it costs in Quartz Hill
A thermal imaging inspection in Quartz Hill runs $200–$400 as a standalone service, and is included in the full audit.
How we do it
We scan the home’s thermal envelope with an infrared camera, mapping the temperature signatures of walls, ceilings, floors, and windows. The images show exactly where heat is moving, not just where we think it might be.
What Home Energy Audit Costs in Quartz Hill
| Item | Typical range in Quartz Hill |
|---|---|
| Blower door test | $250–$500 |
| Thermal imaging inspection | $200–$400 |
| Duct leakage test | $200–$450 |
| Full home energy audit | $600–$1,200 |
What’s the difference between an energy audit and an insulation estimate?
An estimate prices a material. An audit measures the house’s actual performance and tells you which problem to fix first, in what order, and whether insulation is even the highest-priority item. We do the audit, then quote the correction.
Will my Quartz Hill utility bill pay for part of the audit?
Some programs offer credit or rebate paths for qualifying audit work, though availability shifts year to year. We’ll walk you through what currently applies to your home. Call (661) 545-6966 and we’ll check before you commit.
Brands We Service in Quartz Hill
We install and service insulation from Johns Manville, Knauf, Rockwool, and CertainTeed, among others, across every attic and wall system in Quartz Hill. Parts and materials are sourced quickly through our Lancaster supplier network, and we can usually begin a project within a week of the initial audit. See the full list on our brands page.
Pricing for Insulation in Quartz Hill, CA
| Service | Typical range in Quartz Hill |
|---|---|
| Open-cell spray foam (per board foot) | $1.90–$2.90 |
| Closed-cell spray foam (per board foot) | $2.80–$4.10 |
| Blown-in cellulose (per sq ft) | $1.10–$2.60 |
| Blown-in fiberglass (per sq ft) | $1.30–$2.90 |
| Attic radiant barrier (per sq ft) | $1.50–$2.80 |
| Attic insulation removal (per sq ft) | $1.80–$3.60 |
| Full attic air sealing | $800–$1,700 |
| Injection foam walls (per sq ft) | $5.50–$10.00 |
| Attic cleanout | $1,200–$3,500 |
| Full home energy audit | $600–$1,200 |
What pushes prices up in Quartz Hill is usually access: low-pitch roofs, tight attics, and houses where the original venting needs correction before new material goes in. Rodent contamination or degraded old insulation also adds removal cost. What never changes: we quote a hard price before work begins and stick to it.
Neighborhoods We Serve in Quartz Hill
We work throughout Quartz Hill and the surrounding Antelope Valley communities, with response times that put us at most Quartz Hill addresses within 60 to 90 minutes of your call.
- Quartz Hill Estates
- Ranchero Village
- Antelope Acres
- Lake Los Angeles
- West Lancaster
Service Area — Cities Near Quartz Hill
While Quartz Hill is a core part of our service area, we also cover the full Antelope Valley region, including Lancaster, CA, Leona Valley, CA, Acton, CA, and Sun Village, CA. If you’re in the high desert and need the building envelope fixed properly, call us.
Serving Quartz Hill, CA — Our Local Coverage Area
We’re based in the Quartz Hill 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 Quartz Hill
Most insulation work, including attic and wall retrofits, happens under what the county treats as a repair rather than new construction, so no separate permit is needed for the insulation itself. Changes to structural framing, venting, or electrical would be handled separately. We’ll tell you during the assessment which path your project takes.
How quickly can you get to a Quartz Hill home?
We run our main operations out of Lancaster, so most
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 same-day.
- 4You approve before work beginsNothing starts until you say go.
What Quartz Hill Customers Say
"Work is good and the house is noticeably more comfortable. There was insulation debris left in the hall closet under the attic access that I had to clean up."
— Miguel Martinez"Solid job. It's hard to verify what's up there once they've gone, so I'd suggest asking for photos, which they did provide when I asked but didn't offer."
— Justin Kim"Attic was at maybe R-11 from the 1970s and blown in over the top would have just buried the problem. They removed the old material, air sealed the top plates and penetrations first, then blew in to R-49. The upstairs is a completely different house in August."
— Paige Ziegler