Attic Insulation
Pair spray foam air sealing with added attic insulation to hit the R-value your Hollister home needs for year-round comfort.
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Stop paying to heat and cool air that leaks right back outside. Our spray foam insulation seals the gaps in your Hollister home so your HVAC can actually keep up.

Spray foam insulation in Hollister works by expanding into every gap and crack it touches - sealing air leaks and adding thermal resistance in one step. Most attic and crawl space jobs take one to two days and deliver results you can feel in the first season. If your home was built before the 1990s, the gaps in your walls and attic are likely costing you more than you realize.
Hollister sits in the San Benito Valley where summers push above 95 degrees and winter nights drop into the 30s. That kind of temperature swing puts real pressure on any home with air leaks. Spray foam addresses both problems at once, which makes it one of the most effective upgrades for this climate. If you are also dealing with a wet or cold crawl space, our closed-cell foam insulation service is specifically designed for moisture-prone spaces.
Not sure which type of foam makes sense? We will walk you through the options during your free estimate - no jargon, no pressure.
If your cooling system runs constantly but rooms near the ceiling still feel hot, heat is getting in faster than your insulation can stop it. This is one of the most common complaints from Hollister homeowners before an upgrade. The attic and walls are usually where the gap is.
Hold your hand near an exterior wall outlet on a cold January morning. Feeling cool air means outside air is moving through the wall cavity. Hollister winter nights regularly hit the 30s, and those drafts add up to real heating cost and real discomfort.
A musty smell from floor vents or below the house is a sign that moisture is sitting in an unsealed crawl space. Hollister's valley location means crawl spaces accumulate moisture in late winter. Left alone, that moisture damages floor joists and creates conditions for mold.
A significant portion of Hollister homes were built in the 1960s through the 1990s with minimal wall insulation and no air sealing. If your home predates modern energy codes and has never had insulation work, there is a good chance the original material has settled, degraded, or was never adequate.
We install spray foam in attics, crawl spaces, walls, and garages throughout the Hollister area. For homes where moisture or structural strength is a concern - crawl spaces, rim joists, and garage ceilings - we use closed-cell foam insulation, which is denser, moisture-resistant, and provides a stronger air barrier than alternatives. For interior walls, attics where you want sound dampening alongside thermal performance, and budget-conscious jobs, open-cell foam is often the right call.
Many of the older Hollister homes we work on also benefit from pairing spray foam with attic insulation to address both the air-sealing gaps and the thermal layer in one visit. We assess your home's specific situation and recommend the combination that gives you the best performance for your budget - not the most expensive option on our list.
Best for interior walls and attics where sound dampening and air sealing on a budget are the priority.
Best for crawl spaces, garages, and any space where moisture resistance and a rigid air barrier matter most.
Seals the gaps around pipes, wires, and fixtures that let conditioned air escape through your ceiling.
Creates a sealed, moisture-resistant barrier under your home that holds up well in Hollister's seismic and clay-soil environment.
Hollister's climate is one of the better arguments for spray foam. The San Benito Valley sees summer highs regularly above 95 degrees and winter nights in the 30s - your insulation is working hard in both directions for most of the year. Wildfire smoke from fires in the Diablo Range and beyond has also become a recurring seasonal issue here. A well-sealed home keeps that smoky outdoor air from finding its way inside through every small gap in your walls and attic, which matters more in this region than it would in a city with cleaner outdoor air year-round.
We serve homeowners across the Hollister area and surrounding communities. If you are in Gilroy or Salinas, we cover those areas too and understand the same climate conditions that affect homes throughout this region. California also has rebate programs through the California Energy Commission that can offset part of your upfront cost - we will walk you through what you may qualify for during your estimate. Learn about California energy efficiency programs.
We respond within 1 business day. You will get a call - not a form email - to discuss your home's situation and schedule a visit.
We walk the areas you want insulated, measure the space, check for moisture or damage, and look at what is already there. No surprises in the quote.
You get a clear written breakdown of the work and cost. If your project requires a City of Hollister permit, we handle pulling it - no extra hassle for you.
The crew arrives, sets up outside, and sprays in layers. We do a final walkthrough with you before leaving. Plan to be out of the home for at least 24 hours after application.
We respond within 1 business day - no automated replies. Submitting this form is no-obligation. After you send it, someone from our office will call to schedule a free on-site estimate at a time that works for you.
(831) 271-0020We carry California contractor licensing and full liability insurance on every job. That means you are protected if anything unexpected happens - and you have documentation you can show a home inspector or future buyer.
We do not quote jobs by phone or square foot alone. We come out, look at your specific situation, and give you a written number you can count on. No pressure to sign the same day.
We know Hollister's older housing stock, the clay soils, the seismic activity, and the local permit process. That local knowledge shapes how we approach every job in San Benito County.
Spray foam involves chemicals that require you to vacate the home. We walk you through the full process - what to expect, how long to stay out, and what the finished job should look like - before a single drop is sprayed.
Every one of those points shows up in how we run a job - not just how we describe ourselves. If you want to check our work, ask us for references from Hollister-area jobs during your estimate visit.
Pair spray foam air sealing with added attic insulation to hit the R-value your Hollister home needs for year-round comfort.
Learn moreThe denser, moisture-resistant foam option - best for crawl spaces, garages, and any space where water vapor is a concern.
Learn moreHollister summers are not getting cooler - the sooner your home is sealed, the sooner your energy bills reflect it.