Blown-In Fiberglass Insulation Services in the Bay Area, CA

Rodent Free Warranty Labor Warranty

ENERGY STAR
Partner

Building Performance Institute (BPI) Certified

EPA-Certified

At Attics Express, we are the Bay Area's premier blown-in fiberglass insulation specialists, delivering efficient, high-performance insulation solutions to homeowners throughout the region.

With more than 15 years of experience and a fully certified installation team, we bring the regional knowledge and professional commitment required to complete every project correctly from the very start. Dealing with rising energy bills, uneven room temperatures, or stubborn moisture issues? Blown-in fiberglass insulation provides the coverage and performance your home needs, and Attics Express is the team to install it.

Reviews

Good Service Guaranteed

Amy G.

Excellent experience from start to finish. We had a big job; clean, seal and sanitize attic, new insulation, and attic fan. Also, seal crawl space, new insulation, replace hvac duct work, and add moisture barrier. Communication was a 10 and we also…Read review

Andrew Y.

I hired Attics Express to redo my attic and crawl space, including sanitation, replacing ducts, installing insulation, and putting down a moisture barrier. Marco and his team were some of the most professional and hard working contractors I’ve worked… Read review

Leslie C

We needed new insulation, and Attics Express not only did the job well, but also went above and beyond with the initial job! The team arrived on time and worked efficiently, completing the job within a day... discovered the areas that this house needs to be... Read review

Ana Waishwile

I had other estimates for my attic insulation project but the most honest and clearly defined, step-by-step process was from Marco from Attic Express. I did not mind paying a little more when Marco explained to me what needs to be done, not a quick job… Read review

Olivia V.

I highly recommend Marco and his team for attic insulation related services, including removal of old insulation, installation of new insulation, sealing and closing up small cracks or gaps in the wall… He is professional, knowledgeable, prompt, and… Read review

Vincent Tran

Marco and his team went above and beyond to clean out my old blown-in insulation and installing new insulation... I have already noticed that my house can retain the heat much better now thanks to Attic Express! Read review

Bay Area's Most Trusted Blown-In Fiberglass Insulation Contractor

Attics Express has been serving the San Francisco Bay Area for over 15 years — and throughout that time, we have built something that reaches well beyond an impressive project record. We have built a reputation. Our thorough understanding of the Bay Area’s microclimates, moisture conditions, and residential construction styles means we deliver a level of regional expertise that contractors from outside the area simply cannot offer.

Local Knowledge, Bay Area Proven

No two homes are identical, and no two Bay Area neighborhoods present the same insulation challenges. Properties across the region face a diverse range of environmental conditions, from the coastal dampness that affects homes situated near the waterfront to the intense summer heat that inland East Bay communities like Fremont, Pleasanton, and Livermore regularly experience. That is why we never take a one-size-fits-all approach.

Every project begins with a thorough on-site evaluation, and every blown-in fiberglass insulation solution is tailored to your home’s specific conditions, using premium materials and proven installation techniques to ensure consistent, long-lasting performance.

A Company Built on Referrals

Word of mouth has always been among our most dependable sources of new clients. When a Bay Area homeowner recommends Attics Express to a neighbor or family member, it speaks directly to the quality of work we delivered. Every blown-in fiberglass insulation project, regardless of size or budget, receives the same level of professionalism and attention to detail that has made us one of the most referred insulation contractors serving the Bay Area.

Ready to Upgrade to the Bay Area's Best Insulation Solution?

Schedule your free, no-obligation inspection today. Our certified team will assess your home, identify every area where improvement will make a meaningful difference, and deliver a blown-in fiberglass insulation solution built to perform for years to come, backed by the Zero-Doubt Promise and the best warranties in the industry.

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Pros of Choosing Blown-In Fiberglass Insulation

Blown-in fiberglass insulation is not simply an alternative to traditional batt products, it is a distinctly superior solution for a wide range of residential insulation applications. While fiberglass batts work well in open, accessible cavities, blown-in fiberglass goes further by conforming to irregular spaces, flowing around obstructions, and achieving complete coverage in areas that pre-cut materials simply cannot reach. The result is a more thorough, seamless insulation layer that delivers improved energy performance, better moisture management, and outstanding long-term durability across a broad range of Bay Area home types.

Seamless Coverage in Hard-to-Reach Areas

One of the defining advantages of blown-in fiberglass insulation is its ability to fill irregular, obstructed, and difficult-to-access spaces with complete, gap-free coverage. Unlike batt insulation, which must be cut and fitted around wiring, pipes, and framing irregularities, blown-in fiberglass is machine-installed and flows naturally into every corner, void, and cavity it encounters.

For Bay Area homes with complex framing, existing insulation gaps, or areas that are difficult to access, this seamless coverage capability translates directly into measurable improvements in thermal performance and energy efficiency.

Excellent R-Value With Full Coverage

Blown-in fiberglass insulation achieves consistent R-value ratings across the entire installed area, eliminating the thermal gaps and cold spots that frequently occur when batt insulation is improperly fitted or compressed. Installed to the correct depth and density by a certified team, blown-in fiberglass delivers reliable thermal resistance that meets or exceeds current energy code requirements throughout the Bay Area. This consistency of coverage is particularly valuable in attic applications, where complete and uniform insulation depth is essential to achieving the energy savings Bay Area homeowners expect.

Minimal Disruption During Installation

Blown-in fiberglass insulation can be installed quickly and cleanly with minimal disruption to your home and daily routine. The installation process requires only small access points in existing structures, making it an ideal solution for upgrading insulation in finished walls, enclosed attic spaces, and other areas where opening up large sections of your home would otherwise be required. For Bay Area homeowners looking to improve their home’s energy performance without the inconvenience of a major renovation, blown-in fiberglass insulation offers an efficient, low-impact path to meaningful results.

Our Blown-In Fiberglass Insulation Services in the Bay Area

At Attics Express, we install blown-in fiberglass insulation throughout every applicable area of your home, bringing its superior coverage and thermal performance to the spaces where it will have the greatest positive impact on your comfort, energy efficiency, and long-term home health.

Attic Blown-In Fiberglass Insulation

The attic is the most critical area to insulate in any Bay Area home, and blown-in fiberglass insulation is one of the most effective solutions available for attic floor applications. Installed evenly across the attic floor between and over joists, blown-in fiberglass creates a continuous, gap-free thermal barrier that significantly reduces heat gain during summer and heat loss throughout winter. The result is a more stable indoor environment and a meaningful reduction in year-round energy costs for Bay Area homeowners.

Wall Blown-In Fiberglass Insulation

Exterior walls contribute substantially to your home’s overall heat gain and loss, and blown-in fiberglass insulation offers one of the most practical methods for improving wall thermal performance without major structural disruption. By drilling small access holes and injecting blown-in fiberglass directly into wall cavities, our certified team achieves complete coverage around wiring, blocking, and other obstructions that would prevent accurate batt installation. The result is a more thermally consistent home with noticeably improved comfort in every season.

Attics Express’ Zero-Doubt Promise

At Attics Express, we do not consider a blown-in fiberglass insulation project complete until you are fully satisfied, and we mean that without reservation. If anything falls short of your expectations, we return. If additional visits, materials, or labor are needed beyond the original project scope, that responsibility is entirely ours. You hired us to solve a problem, and we will not consider the job done until it is completely and thoroughly resolved.

That is the Zero-Doubt Promise: the assurance that your investment is well placed, your Bay Area home is in the hands of true professionals, and the work will be completed to the highest possible standard no matter what it takes.

The Best Warranties in the Insulation Industry

Every blown-in fiberglass insulation project we complete is backed by industry-leading warranty coverage:

Limited Lifetime Material Warranty: Owens Corning insulation materials
5-Year Labor Warranty: General insulation installations
6-Year Warranty: Rodent control materials and labor
10-Year Labor Warranty: Air duct installation and rodent proofing
Flexible Ducts: 5-Year Material
Aluminum Ducts: 10-Year Material
Sheet Metal Ducts: 15-Year Material
Vapor Barrier: 3-Year Material / 1-Year Labor
Radiant Barrier: 3-Year Material / 1-Year Labor

Proudly Serving the Greater Bay Area

Attics Express is headquartered in Fremont, which means when you call us, you are working with a local team that genuinely knows the Bay Area, not a distant contractor unfamiliar with the region’s unique conditions. For over 15 years, we have helped homeowners across the Bay Area improve comfort, reduce energy costs, and protect their homes through professional blown-in fiberglass insulation services.

Alameda County

Contra Costa County

Antioch
Brentwood
Clayton
Concord
Danville
El Cerrito
Hercules
Lafayette
Martinez
Moraga

Oakley
Orinda
Pinole
Pittsburg
Pleasant Hill
Richmond
San Pablo
San Ramon
Walnut Creek

Marin County

Belvedere
Corte Madera
Fairfax
Larkspur
Mill Valley
Novato
Ross
San Anselmo
San Rafael
Sausalito
Tiburon

Napa County

San Francisco City

San Mateo County

Atherton
Belmont
Brisbane
Burlingame
Colma
Daly City
East Palo Alto
Foster City
Half Moon Bay
Hillsborough

Menlo Park
Millbrae
Pacifica
Portola Valley
Redwood City
San Bruno
San Carlos
San Mateo
South San Francisco
Woodside

Solano County

Sonoma County

Cloverdale
Cotati
Healdsburg
Petaluma
Rohnert Park
Santa Rosa
Sebastopol
Sonoma
Windsor

Santa Clara County

Campbell
Cupertino
Gilroy
Los Altos
Los Altos Hills
Los Gatos
Milpitas
Monte Sereno

Don’t see your city listed? Give us a call — we serve communities throughout the Bay Area and may already be working in your neighborhood.

The Attics Express Process: What to Expect

Every Attics Express blown-in fiberglass insulation project follows three clear steps designed to keep you informed, confident, and in control from start to finish.

Free Inspection & Consultation

We evaluate your home, identify every area where blown-in fiberglass insulation will deliver the greatest impact, and provide transparent, itemized pricing with no pressure and no obligation.

Our certified team installs your blown-in fiberglass insulation solution to the highest industry standards, efficiently, cleanly, and without compromise on materials, technique, or quality of workmanship.

Professional Installation

Post-Installation Inspection

We do not leave until every aspect of the installation meets our rigorous internal quality benchmarks. Every detail is reviewed and confirmed before we consider the project complete.

Ready to Experience Superior Insulation Coverage Throughout Your Home? Let's Talk.

Don’t allow inadequate insulation to cost you another season of high energy bills, inconsistent indoor temperatures, or unresolved moisture concerns. At Attics Express, we are ready to inspect your home, identify every opportunity for meaningful improvement, and deliver a blown-in fiberglass insulation solution built to last, backed by the Zero-Doubt Promise and the strongest warranties in the industry.