Insulation in Los Altos Hills, CA
Insulation in Los Altos Hills usually means one of two jobs: either the original 1960s or 70s fiberglass has compressed to nearly nothing, or a recent teardown-rebuild needs to hit today’s Title 24 numbers. Most of the calls we get from the hills start with spray foam, because the combination of post-and-beam construction, exposed crawl spaces on sloped lots, and cold-air drainage from the Santa Cruz Mountains makes these houses leak energy in ways a flatland home never does. If your floors feel cold on a summer evening or your attic bakes by 3 p.m., call (650) 204-8447 and one of our licensed techs will walk the house with you.
Why Los Altos Hills Homes Are Different
Los Altos Hills is not the flat Peninsula. The 1-acre-minimum lots climb into the Santa Cruz Mountain foothills, and nearly every original home sits on a graded cut-and-fill pad with a pier-and-grade-beam foundation or post-and-beam frame. That construction style, beautiful as it is, left floors essentially uninsulated and attics with a couple of compressed batts, installed decades before California wrote Title 24. At night, valley fog and cool air drain down the slopes and pool in the low swales, so the temperature difference between inside and outside here is sharper than in Palo Alto or Los Altos just a few miles east. A 2,800-square-foot rancher in a swale on Moody Road can feel dramatically colder on a July evening than the same square footage in flatland Los Altos. We also see the south- and west-facing exposures take brutal afternoon solar gain, which turns attics into ovens and makes radiant barriers on those slopes one of the fastest paybacks anywhere on the Peninsula. The housing stock splits cleanly: original mid-century ranches that have never been touched since the day they were built, and full luxury rebuilds where closed-cell spray foam and continuous exterior insulation are baked into the plans from day one.
Our Main Los Altos Hills Services
Homeowners in Los Altos Hills call us most about two things: underinsulated attics baking in the summer sun and cold, damp crawl spaces on sloped lots. Both are foundation-level problems here, and both get their own dedicated pages below.
Attic Insulation in Los Altos Hills
On the hills, an attic with 2 to 3 inches of original fiberglass means summer heat pours into the living space and winter heat pours out through the roof. We inspect the full attic, measure the existing depth, check ventilation, and then recommend either a blown-in top-up or full removal and fresh insulation. Because so many original attics here sit over post-and-beam ceilings, we pay extra attention to air gaps around beams and knee walls before adding material. Read more on our Attic Insulation in Los Altos Hills page, then call for a free same-week inspection.
Crawl Space Encapsulation & Vapor Barrier in Los Altos Hills
A hillside crawl space in Los Altos Hills is not the same animal as a flat one. Cold foothill air circulates under the house all night, and the exposed slope side lets that air in year-round. We encapsulate with a heavy vapor barrier, seal the foundation vents, and often add rigid foam or spray foam to the rim joists and subfloor. For homes on piers with open sides, the encapsulation approach changes, and we walk you through exactly what the terrain requires. Details are on our Crawl Space Encapsulation & Vapor Barrier in Los Altos Hills page.
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 Los Altos Hills
Spray foam is the single best answer for the hillside homes that dominate Los Altos Hills, because it seals and insulates in one pass. Original mid-century houses here leak air through post-and-beam gaps, exposed floor decks, and open rim joists, while newer rebuilds on tight hillside lots need the air-sealing performance to hit CalGreen and Title 24 without tearing apart custom framing. We install both open-cell and closed-cell foam from trusted manufacturers like Icynene and Demilec, and most jobs finish in a single visit. This service pairs naturally with our Spray Foam Insulation program; the 90-Day Done Right Promise covers every install we do.
Open-Cell Spray Foam
Signs you need it
You can hear highway or valley noise through the roof deck and the upstairs rooms swing hot in summer, meaning air is moving freely through your attic and upper framing.
What it costs in Los Altos Hills
Open-cell spray foam in Los Altos Hills typically runs $1.80 to $3.50 per board foot installed, depending on depth and access.
How we do it
We locate the target cavities, prep and mask the work area, then spray a continuous open-cell blanket to the specified depth, check for full adhesion and coverage, and clean up the same day.
Closed-Cell Spray Foam
Signs you need it
You need waterproofing and structural rigidity at once, often on a hillside rim joist or exposed subfloor where moisture and cold air meet.
What it costs in Los Altos Hills
Closed-cell spray foam runs $3.00 to $5.50 per board foot installed in Los Altos Hills, with hillside access and tight crawl spaces affecting the final number.
How we do it
We clean and dry the substrate, install foam to the engineered depth, then trim and verify the seal around every penetration before touching up any irregular areas.
Garage Ceiling Spray Foam
Signs you need it
The room above the garage is always cold in winter and your garage door area stays damp, meaning the garage ceiling has little or no insulation and air is moving through it.
What it costs in Los Altos Hills
Garage ceiling spray foam in Los Altos Hills typically falls between $2.50 and $4.50 per square foot, depending on open-cavity access and ceiling height.
How we do it
We seal around the garage door header and band joists, then spray the ceiling cavity edge-to-edge so the room above finally holds its temperature.
What Spray Foam Insulation Costs in Los Altos Hills
| Item | Typical range in Los Altos Hills |
|---|---|
| Open-cell spray foam (installed) | $1.80 - $3.50 per board foot |
| Closed-cell spray foam (installed) | $3.00 - $5.50 per board foot |
| Garage ceiling spray foam | $2.50 - $4.50 per square foot |
Is spray foam safe for a hillside home in Los Altos Hills?
Yes, when installed by a trained crew with proper ventilation and cure time. We use brand-name open-cell and closed-cell products applied to manufacturer specs, and nobody re-enters the house before off-gassing is complete. Call (650) 204-8447 to ask about your specific framing.
Can you spray foam an older Los Altos Hills attic without tearing it out?
Usually, yes. Any old fiberglass that’s clean and dry can stay in place while we foam the rim, band joists, and selected cavities. We only remove old material when it’s wet, pest-damaged, or compressed beyond use.
Blown-In Insulation in Los Altos Hills
Blown-in insulation works exceptionally well in Los Altos Hills attics because the same post-and-beam framing that makes these homes beautiful also creates odd-shaped cavities that batts cannot fill fully. Original 1960s and 70s homes here commonly have just 2 to 3 inches of settled fiberglass, so a dense blanket of blown-in material cuts both heating and cooling load in one afternoon. We blow Owens Corning and Johns Manville fiberglass or GreenFiber cellulose to R-38 or R-49 depending on the attic, and every job includes air-sealing at the top plates. See our full Blown-In Insulation program for material details.
Blown-In Cellulose
Signs you need it
Your attic has shallow, settled fiberglass from the original build and the upstairs rooms swing hot in the afternoon, especially on south-facing slopes.
What it costs in Los Altos Hills
Blown-in cellulose in Los Altos Hills typically runs $1.50 to $3.00 per square foot installed, including attic prep and air sealing.
How we do it
We air-seal the attic floor, install baffles at the eaves to protect ventilation, then blow cellulose to the target R-value with a calibrated machine, raking it even and verifying depth throughout.
Blown-In Top-Up
Signs you need it
Your existing attic insulation measures under 10 inches deep and your energy bills climb every winter, but the material itself is still dry and clean.
What it costs in Los Altos Hills
A blown-in top-up in Los Altos Hills usually runs $1.20 to $2.50 per square foot, depending on the final depth and attic access.
How we do it
We inspect and clean the existing material, seal bypasses at the floor, then blow fresh insulation over the top to bring the whole attic to R-49, smoothing and checking depth as we go.
What Blown-In Insulation Costs in Los Altos Hills
| Item | Typical range in Los Altos Hills |
|---|---|
| Blown-in cellulose (attic, full) | $1.50 - $3.00 per square foot |
| Blown-in fiberglass (attic, full) | $1.25 - $2.75 per square foot |
| Blown-in top-up over existing | $1.20 - $2.50 per square foot |
How long does blown-in insulation last in a Los Altos Hills attic?
Fiberglass and cellulose both perform for decades if they stay dry. Hillside attics with poor ventilation can get damp, so we check soffit and ridge venting before any blow-in job and recommend fixes if needed.
Can you insulate the floors of a hillside Los Altos Hills home with blown-in material?
Blown-in is meant for attics and walls, not open floor cavities. For exposed subfloors, we recommend spray foam or rigid board and encapsulation, which is the better fix for the cold foothill air moving under the house.
Radiant Barrier Installation in Los Altos Hills
Radiant barrier is one of the few upgrades that pays for itself faster in Los Altos Hills than almost anywhere else, because so many roofs face direct southern or western sun with no tree cover. The original mid-century homes on these large lots often have unshaded attics that hit 130 degrees in summer, and a properly installed barrier reflects much of that heat before it ever reaches the living space. We install attic floor and roof-deck foil barriers, often paired with ventilation upgrades, and every job comes with the 90-Day Done Right Promise. Our Radiant Barrier Installation page covers the full material line.
Attic Radiant Barrier
Signs you need it
Your attic feels like an oven by mid-afternoon and the upstairs rooms run 8 to 10 degrees warmer than downstairs on sunny days.
What it costs in Los Altos Hills
Attic radiant barrier in Los Altos Hills typically falls between $2.00 and $4.50 per square foot installed, depending on attic shape and existing insulation.
How we do it
We lay or staple a low-emissivity foil barrier over the attic floor or rafters, leaving the required air gap and keeping soffit and ridge vents clear so reflected heat can escape.
Radiant Barrier & Ventilation
Signs you need it
Your south- or west-facing attic stays hot even after sunset, which means the attic is trapping reflected heat instead of exhausting it through the vents.
What it costs in Los Altos Hills
Radiant barrier with ventilation upgrades in Los Altos Hills generally runs $3.00 to $5.50 per square foot, including baffle and vent work.
How we do it
We install the barrier first, then add or repair soffit, gable, and ridge ventilation so the attic can actually shed the heat the barrier reflects away from the living space.
What Radiant Barrier Installation Costs in Los Altos Hills
| Item | Typical range in Los Altos Hills |
|---|---|
| Attic radiant barrier (floor or rafters) | $2.00 - $4.50 per square foot |
| Radiant barrier roof deck | $2.50 - $5.00 per square foot |
| Radiant barrier with ventilation upgrade | $3.00 - $5.50 per square foot |
Does radiant barrier actually help in Los Altos Hills?
Yes, especially on south- and west-facing slopes with full sun exposure. On those roofs, a radiant barrier can cut attic temperatures by 30 degrees or more in summer, which reduces cooling load and protects stored items in the attic.
Can you install a radiant barrier over old insulation?
Yes, when the existing insulation is dry and clean. We lay the barrier over the top of the insulation in most cases, which keeps the reflective surface facing the right direction while leaving ventilation paths open.
Insulation Removal & Replacement in Los Altos Hills
Removal and replacement is the right move when an original Los Altos Hills attic still has the first-generation fiberglass from the 1960s, now compressed, dust-filled, or host to decades of rodent activity. Because so many of these lots sat untouched for 50 years, the first big renovation is often the first time anyone has truly opened the attic or crawl space. A clean-out also creates the clean slate needed before a spray foam or air-sealing job. We handle the entire removal and replacement sequence under one contract, backed by the 90-Day Done Right Promise; see our Insulation Removal & Replacement page for the full process.
Attic Insulation Removal
Signs you need it
Your attic insulation is dark, matted, or smells musty, or you’re planning a remodel that requires opening the ceiling anyway.
What it costs in Los Altos Hills
Attic insulation removal in Los Altos Hills typically runs $1.50 to $3.50 per square foot, with steep roof access adding labor.
How we do it
We set up a commercial vacuum system, bag and remove all old material through the attic access, then sweep and prepare the cavity for new insulation the same day.
Insulation Replacement
Signs you need it
Your current insulation is too thin to fix with a top-up, or it’s been soaked by a roof leak and needs to come out before mold sets in.
What it costs in Los Altos Hills
Insulation replacement in Los Altos Hills generally runs $2.50 to $5.00 per square foot, including removal, new material, and attic prep.
How we do it
We remove the old material, inspect the deck and framing, air-seal any gaps, then install the agreed material to the required R-value, leaving the attic clean and ready for use.
What Insulation Removal & Replacement Costs in Los Altos Hills
| Item | Typical range in Los Altos Hills |
|---|---|
| Attic insulation removal | $1.50 - $3.50 per square foot |
| Contaminated or pest-damaged removal | $2.00 - $4.00 per square foot |
| Full removal and replacement | $2.50 - $5.00 per square foot |
Do I have to remove old insulation before adding new in Los Altos Hills?
Not always. If the old material is dry, clean, and not pest-damaged, we can often leave it and add on top. We only recommend removal when it’s wet, contaminated, compressed past usefulness, or when you need a clean attic before air sealing or foam work.
How long does a full removal take on a Los Altos Hills ranch?
Most single-story ranchers with one attic access take one full day for removal and one for installation. Steep sites and hard-to-reach attics can add half a day, and we’ll tell you the schedule before we start.
Attic Air Sealing in Los Altos Hills
Air sealing is the quiet workhorse of Los Altos Hills attics, because original construction here predates any sealing standard, and the same post-and-beam framing that looks great leaks air at every framing joint. When cold foothill air drains down at night, those small gaps turn into open channels that pull heated or cooled air straight out of the house. We seal the attic floor before adding new insulation, which makes the insulation actually work as designed. Our Attic Air Sealing service pairs with every blow-in, spray foam, and removal job, and the 90-Day Done Right Promise covers the seal work.
Top Plate & Penetration Sealing
Signs you need it
You can feel drafts near exterior walls in winter and see dust streaks along the ceiling edges, which means air is moving through the top plates and wiring holes.
What it costs in Los Altos Hills
Top plate and penetration sealing in Los Altos Hills typically runs $1.00 to $2.00 per linear foot, depending on attic accessibility.
How we do it
We locate every top plate, wire, and pipe penetration from the attic side, then seal each one with fire-rated foam or caulk to stop the air exchange at the framing line.
Can Light & Duct Boot Sealing
Signs you need it
Your recessed ceiling lights feel warm in summer and cold in winter, and you can feel air moving around the trim when the HVAC runs.
What it costs in Los Altos Hills
Can light and duct boot sealing in Los Altos Hills generally runs $35 to $75 per fixture or boot, depending on access and fixture type.
How we do it
We install airtight covers over non-IC-rated cans, seal around all duct boots with mastic and foam, and recheck every penetration from the living-space side before finishing.
What Attic Air Sealing Costs in Los Altos Hills
| Item | Typical range in Los Altos Hills |
|---|---|
| Top plate and penetration sealing | $1.00 - $2.00 per linear foot |
| Can light sealing | $35 - $75 per fixture |
| Duct boot sealing | $35 - $75 per boot |
Is attic air sealing worth it on its own in Los Altos Hills?
Yes. Sealing a hillside attic can cut air leakage by 15 to 30 percent on an original ranch, which means lower bills even before new insulation goes in. It’s the first thing we check on any audit.
Can you air seal a Los Altos Hills attic in one visit?
Most attics with standard access are sealed in one visit, often the same day we blow in new insulation. Steep or tight attic shapes may need a follow-up morning, and we’ll let you know in advance.
Wall Insulation in Los Altos Hills
Wall insulation in Los Altos Hills is often the missing piece in a rancher that has already had the attic and crawl space addressed but still feels drafty at the walls. Original mid-century walls here commonly have zero insulation, and the post-and-beam construction leaves large open cavities that let hillside air move freely behind the drywall. We drill and fill from the exterior or interior with closed-cell foam or dense-pack fiberglass, matching the method to the construction. Our Wall Insulation page details both approaches, and every install carries the 90-Day Done Right Promise.
Drill & Fill Wall Insulation
Signs you need it
Your exterior walls feel cold to the touch in winter, and you can hear outdoor noise through the walls, indicating empty wall cavities.
What it costs in Los Altos Hills
Drill and fill wall insulation in Los Altos Hills typically runs $2.50 to $4.50 per square foot of wall area, including patching and cleanup.
How we do it
We drill small holes through the siding or drywall, blow dense-pack fiberglass or inject foam into each stud cavity, then patch and finish the access holes to match the surface.
Interior Wall Soundproofing
Signs you need it
You hear footsteps, conversation, or plumbing noise through interior walls, and you want to quiet specific rooms without moving walls.
What it costs in Los Altos Hills
Interior wall soundproofing in Los Altos Hills generally runs $3.00 to $6.00 per square foot, depending on the material and wall finish.
How we do it
We open one side of the wall, install Rockwool or a sound-rated batt product, add resilient channel if specified, and re-drywall and finish the wall, ready for paint.
What Wall Insulation Costs in Los Altos Hills
| Item | Typical range in Los Altos Hills |
|---|---|
| Drill and fill wall insulation | $2.50 - $4.50 per square foot |
| Injection foam wall insulation | $3.00 - $5.50 per square foot |
| Interior wall soundproofing | $3.00 - $6.00 per square foot |
Can you insulate my Los Altos Hills walls without removing the siding?
Yes. Drill and fill goes from the inside or outside through small holes, and we patch to match. Full exterior insulation only makes sense during a remodel when the siding is already coming off for other work.
Do hillside post-and-beam walls take insulation well?
Yes, though the cavity shapes vary more than a standard stud wall. We check each bay with a borescope before filling, which tells us exactly how much material each cavity needs and where the block points are.
Attic Cleaning & Rodent Proofing in Los Altos Hills
Attic cleaning and rodent proofing in Los Altos Hills is a regular job because these large, private lots sit right up against open foothill and oak woodland. Rats, mice, and squirrels find their way into unsealed attics, nest in the old fiberglass, and leave behind waste that makes the insulation unsafe to keep. The same original homes that never got updated insulation also never got rodent exclusion, so the first clean-out usually reveals years of accumulated activity. We clean, sanitize, and seal the entire attic so animals cannot get back in, and the 90-Day Done Right Promise covers the exclusion work; see our Attic Cleaning & Rodent Proofing page for the full protocol.
Attic Cleanout
Signs you need it
You see droppings or nesting material in the insulation, or you hear movement overhead at night and in the early morning.
What it costs in Los Altos Hills
Attic cleanout in Los Altos Hills typically runs $1,800 to $3,500, depending on attic size and the amount of contaminated material to remove.
How we do it
We remove all contaminated insulation by vacuum, bag it for disposal, then clean the deck and framing so the attic is ready for fresh insulation or sealing.
Rodent Proofing & Exclusion
Signs you need it
You’ve had rodents in the attic once and want to make sure they never get back in, or you can see daylight through gaps at the eaves and gable ends.
What it costs in Los Altos Hills
Rodent proofing and exclusion in Los Altos Hills generally runs $800 to $2,000, depending on the number of entry points and the roof design.
How we do it
We seal every entry point with steel mesh, hardware cloth, and foams that rodents cannot chew through, then verify the attic is completely closed from the outside in.
What Attic Cleaning & Rodent Proofing Costs in Los Altos Hills
| Item | Typical range in Los Altos Hills |
|---|---|
| Attic cleanout (single-story attic) | $1,800 - $3,500 |
| Attic sanitizing and decontamination | $600 - $1,800 |
| Rodent proofing and exclusion | $800 - $2,000 |
Do I need to replace insulation after rodent removal in Los Altos Hills?
Usually, yes. Rodent waste and urine cannot be fully cleaned out of fiberglass, so the material needs to come out and be replaced. We bundle the cleanout, sanitizing, and new insulation into one job with one price.
Can you rodent-proof an older Los Altos Hills roof with open eaves?
Yes. Open eave designs are common here and often carry the most entry points. We use hardware cloth and steel mesh behind the fascia and gable ends, which closes the gaps without changing the exterior look.
Home Energy Audit in Los Altos Hills
A home energy audit in Los Altos Hills is the fastest way to stop guessing which hillside problem is actually driving your bills. Because the original houses here leak air in several places at once, a blower door test and thermal imaging show exactly where the energy is leaving, whether that’s the attic, the crawl space, the walls, or all three. We run the audit first, then build the insulation plan around what the house actually needs. This is the diagnostic backbone of every job we do; see our Home Energy Audit page for the full test sequence, and every audit carries the 90-Day Done Right Promise.
Blower Door Test
Signs you need it
Your heating and cooling bills are higher than similar homes and you want a measured number, not a guess, for where the air is actually leaking.
What it costs in Los Altos Hills
A blower door test in Los Altos Hills typically runs $199 to $450, depending on home size and whether it’s part of a full audit.
How we do it
We mount a calibrated fan in an exterior door frame, depressurize the house, then measure the exact air changes per hour and walk the home with a smoke pencil to find every leak.
Thermal Imaging Inspection
Signs you need it
You feel cold spots or hot spots on walls and ceilings but cannot tell whether it’s missing insulation, air leakage, or a moisture problem.
What it costs in Los Altos Hills
Thermal imaging in Los Altos Hills generally runs $150 to $350 as an add-on to a full audit, depending on house size.
How we do it
We scan every wall, ceiling, floor, and header with an infrared camera while the blower door runs, then mark the problem areas and explain what the temperature differences mean.
What Home Energy Audit Costs in Los Altos Hills
| Item | Typical range in Los Altos Hills |
|---|---|
| Blower door test | $199 - $450 |
| Thermal imaging inspection | $150 - $350 add-on |
| Full home energy audit (blower door + thermal) | $450 - $800 |
Does a home energy audit in Los Altos Hills require a permit?
No. An audit is a diagnostic test, not a construction project, so no permit is needed. Any insulation or sealing work we recommend afterward may need a permit depending on scope, and we handle that with the city for you.
How soon can you schedule an audit in Los Altos Hills?
We can typically schedule an audit within one week, often sooner. The test itself takes two to three hours, and you’ll have the written report and recommendations the same day we finish.
Brands We Service in Los Altos Hills
We work with the insulation manufacturers homeowners in Los Altos Hills already trust: Owens Corning, Johns Manville, and Rockwool are the most common drop-offs at our local stock locations, and we keep attic and crawl space materials ready for same-week installation. Parts are restocked from our Bay Area supply chain, so we’re rarely waiting on anything. See our brands for the full manufacturer list.
Pricing for Insulation in Los Altos Hills, CA
| Service | Typical range in Los Altos Hills |
|---|---|
| Open-cell spray foam | $1.80 - $3.50 per board foot |
| Closed-cell spray foam | $3.00 - $5.50 per board foot |
| Blown-in cellulose (full attic) | $1.50 - $3.00 per square foot |
| Blown-in top-up | $1.20 - $2.50 per square foot |
| Attic radiant barrier | $2.00 - $4.50 per square foot |
| Attic insulation removal | $1.50 - $3.50 per square foot |
| Top plate and penetration sealing | $1.00 - $2.00 per linear foot |
| Drill and fill wall insulation | $2.50 - $4.50 per square foot |
| Attic cleanout | $1,800 - $3,500 |
| Blower door test | $199 - $450 |
Hillside access, steep roof pitches, and deep crawl spaces all push Los Altos Hills labor costs above flatland norms, and original mid-century framing tends to have more gaps to seal before new material goes in. We give a written upfront price before we start so those variables are already handled, and the number we quote is the number you pay.
Neighborhoods We Serve in Los Altos Hills
We work across the entire town, from the ridgelines down to the valley floor along Page Mill and Moody roads. Every crew is dispatched from our Bay Area office, and our typical response time in Los Altos Hills is same day or next morning for emergencies.
- Moody Road corridor
- Page Mill Road area
- Natoma Road and the lower swales
- Palo Alto Hills border
- Westridge and the higher ridge lots
Service Area - Cities Near Los Altos Hills
We also serve the surrounding communities on the Peninsula and across the bay. Homeowners in Redwood City, CA, Newark, CA, San Carlos, CA, and Atherton, CA get the same live-person dispatch, upfront pricing, and 90-Day Done Right Promise.
Serving Los Altos Hills, CA - Our Local Coverage Area
We’re based in the Los Altos Hills 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 Los Altos Hills
We dispatch from our Bay Area office and typically reach Los Altos Hills homes the same day you call for emergencies and within one to two business days for scheduled work. A live person answers 24/7, and we’ll confirm an arrival window before the tech heads out.
Most insulation replacement and air sealing falls under standard Title 24 requirements, and we can pull permits when the city requires them. Some hillside rebuilds also have specific CalGreen provisions, and we’ll work with your plans or check with the city before we start.
Most single-service jobs, such as a blown-in attic top-up or a radiant barrier, finish in one visit. A full house package that includes the attic, walls, and crawl space may take two to three visits, and we’ll lay out the schedule in writing before any work begins.
Call (650) 204-8447 for a free estimate on any insulation project in Los Altos Hills. A live person answers, and the quote we give you is the number you pay.
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 Los Altos Hills Customers Say
"They did the energy audit first - blower door and thermal camera - and showed me exactly where the house was leaking before selling me anything. The fix ended up being air sealing plus a modest attic top-up, not the full replacement another company pushed."
- Grace Nakamura"Rodents had been in the attic for years before we bought the place. They vacuumed everything out, sanitized, sealed the entry points with mesh and foam, and only then put new insulation down. Photos of every stage before I paid."
- Darnell Whitfield"Upstairs was ten degrees hotter than downstairs every summer. They pulled the attic to bare joists, air-sealed every can light and top plate first, then blew it to R-49. First August in this house where the bedrooms and the living room read the same on the thermostat."
- Marcus Hale