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Attic Pros
Bay Area Attic Insulation Installation · Licensed · 13+ Years

Attic Insulation Installation in the San Francisco Bay Area

The right insulation, at the right R-value, installed to even and gap-free coverage — for a home that holds its temperature, costs less to heat and cool, and simply feels more comfortable year-round.

Free attic assessmentLicensed (CSLB #1022608)Every material installed13+ years experience
★★★★★4.8
1,900+ Google Reviews
★★★★★4.5
1k+ Yelp Reviews

Free on-site estimate · No pressure · We come to you

Attic Pros installer fitting attic insulation

The Attic Is Where
Comfort Is Won or Lost

Heat moves — up and out of your home in winter, down and in through a hot attic in summer. Insulation is what slows that conductive heat flow, and the attic is the single biggest place it happens. When the attic is properly insulated, your home holds the temperature you set instead of leaking it, so your heating and cooling systems don't have to keep fighting to catch up.

Two things decide whether attic insulation actually delivers: the right amount (a sufficient, even R-value with no thin spots) and a clean, air-sealed surface underneath it. Under-insulated, settled, or gap-riddled insulation quietly costs you comfort and money every season. We assess what you have, seal the leaks, and install the right material to the coverage your attic needs.

  • Steadier temperatures on every floor, all year
  • Less heat lost in winter, less gained in summer
  • Takes the load off your heating & cooling
  • A quieter, more comfortable home
  • Right material and R-value for your attic
  • Installed to even, gap-free coverage

The Insulation
Materials We Install

There's no single best insulation — the right pick depends on your attic, your goals, and your budget. Here's a quick, honest comparison; each links to its own page for the full details.

Blown-In (Loose-Fill)

Fiberglass or cellulose blown in to fill the attic floor and hard-to-reach gaps.

Pros
  • Fills odd shapes & gaps well
  • Great for open attic floors
  • Fast to install
Trade-offs
  • Can settle over time
  • Needs the correct installed depth

Batt & Roll

Pre-cut fiberglass or mineral-wool batts fitted between joists and studs.

Pros
  • Budget-friendly
  • Straightforward in open framing
  • Predictable R-value
Trade-offs
  • Gaps if poorly fitted
  • Trickier around obstructions

Cellulose

Recycled paper-based loose-fill — the eco-minded option.

Pros
  • High recycled content
  • Fills gaps densely
  • Good sound damping
Trade-offs
  • Can settle over time
  • Sensitive to moisture

Foam Board (Rigid)

Rigid panels for continuous, high-R coverage in the right assemblies.

Pros
  • High R-value per inch
  • Continuous coverage
  • Rigid and durable
Trade-offs
  • Needs careful fitting & sealing
  • Costs more than batts

Rockwool (Mineral Wool)

Dense stone-wool batts for fire, sound, and moisture resistance.

Pros
  • Fire & sound resistant
  • Sheds moisture
  • Holds its shape
Trade-offs
  • Costs more than fiberglass

Spray Foam

Expands to air-seal and insulate tricky areas in a single step.

Pros
  • Air-seals as it insulates
  • High R-value per inch
  • Great for irregular spaces
Trade-offs
  • Higher cost
  • Professional install required
Request a Free Estimate

Signs Your Attic Needs
New or Upgraded Insulation

Insulation is easy to ignore until it's costing you comfort. These are the tell-tale signs it's due for attention.

Rooms never feel right

Rooms that are cold in winter and hot in summer, or that never seem to hold a set temperature, often trace back to thin or missing attic insulation.

High or climbing bills

When heating and cooling costs keep rising, an under-insulated attic is one of the most common — and most fixable — culprits.

You can see the joists

If insulation sits level with or below your attic floor joists, it's likely below today's recommended levels and due for a top-up.

Rodent-damaged or soiled

Insulation that's been matted, soiled, or nested in by rodents has lost its value and should be removed before new goes in.

Uneven floors & drafts

Big temperature differences between floors, or drafts near the ceiling, point to heat escaping straight through the attic.

Old or never upgraded

Older homes — or ones whose attic has never been addressed — are often running on settled, decades-old insulation.

Not sure whether your attic needs a top-up, a full replacement, or removal first? Book a free attic assessment — we'll measure what you have and recommend exactly what it needs.

Our Attic Insulation Installation Process

Insulation only performs when it's the right amount, evenly installed, over an air-sealed surface. Here's how we handle every job.

Free attic assessment

We inspect your existing insulation, coverage, and R-value, plus air leaks, moisture, and any rodent damage — so we know exactly where you stand.

Recommend material & R-value

We match the right material — blown-in, batt, foam, rockwool, or cellulose — and a target R-value to your attic, climate, and budget.

Remove & prep if needed

If the old insulation is contaminated, wet, or rodent-damaged, we remove and haul it away first, then air-seal gaps and penetrations.

Install to even coverage

We install the chosen material to a consistent depth and full coverage, fitting neatly around obstructions with no gaps or compression.

Verify & clean up

We confirm the target coverage, clean up completely, and walk you through the finished attic.

Free assessmentLicensed (CSLB #1022608)Even, gap-free coverage
Attic Pros insulation installers on the job

The Bay Area's Trusted
Insulation Installers

For over 13 years, Bay Area homeowners and businesses have trusted us for insulation — because we recommend the right material for the job (not just the priciest), seal the leaks first, install it properly, and stand behind our work.

  • Licensed contractor (CSLB Lic. #1022608)
  • SPCB-registered for pest-related work (Co. Reg. #9901)
  • Diamond Certified & Angi Super Service Award winner
  • Independently reviewed — verified Google ratings
  • Free, no-obligation on-site assessment
  • Local team with 13+ years in Bay Area homes

Trusted by Bay Area Homeowners

4.8
★★★★★
Based on 1,900+ verified Google reviewstrusted for insulation & home services across the Bay Area
Google Review
★★★★★

Tom is a professional and did a very detailed inspection, also gave additional details to prevent in future infestation.

ajit rathi
recently
Google Review
★★★★★

My wife and I found mice droppings in our kitchen cabinet. We reached out to Attic Pros and was connected with Tom. He was very professional and thorough with his inspection. We went through our crawl space and attic. Gave us a full rundown of issues/problems we may be experiencing now and potentially in the future. Thanks for your expertise and quick follow up with the quote and service Tom.

Will Le
recently
Google Review
★★★★★

These guys are awesome. Super clear comms to schedule, then received an extremely thorough consultation. We eventually decided to go with them as other shops in the area didn't communicate as well as Attic Pros.

Pedro Kroeff
recently
Google Review
★★★★★

Tom from Attic Pros was great to work with! He was friendly, professional, and thorough during the inspection. He clearly explained everything he found and answered all of my questions. The whole process was straightforward. Thank you, Tom!

Daria Baevski
recently
Google Review
★★★★★

Finding out we had a rodent infestation for the first time was incredibly stressful, but Attic Pros made the entire process so much easier! Jeremy was very knowledgeable when help preparing the estimate and the work that needed to be done. Their team that came to perform the work—Nico Otten, Juan Rodriguez, and Antonio Lopez—were amazing from start to finish. Communication was fantastic right from the beginning. The crew was super fast, highly efficient, and left everything very clean after sanitizing our attic, crawl space, and garage. They definitely gave us total peace of mind. They were also able to finish in one day!!

Annie M
recently
Google Review
★★★★★

Our small cottage has a very narrow attic entrance. Denis from Attic Pros was willing to try and was able to enter to clean, vacuum, and replace the old insulation. Very professional, access areas were well shielded and protected. Powerful vacuum and clean up well after themselves.

Morgan Yang
recently

QUESTIONS, ANSWERED

Frequently Asked Questions

Straight answers to what people actually ask about attic insulation — how much you need, which material to pick, and whether to remove the old first. Still weighing it up? Our team is happy to take a look.

Still have questions?

Talk to our team — we're here to help.

(800) 543-0382
Because the attic is the single biggest path heat takes into and out of your home — up and out in winter, down and in through a hot attic in summer. Properly insulating it is one of the most effective ways to keep your home comfortable and reduce how hard your heating and cooling have to work.
It depends on your home and where you are in the Bay Area. Rather than guess, we assess your attic and recommend a target R-value in line with current California energy standards and Department of Energy guidance for our climate. We won't quote a one-size-fits-all number — the right amount is the amount your attic actually needs.
There's no single best — it depends on your attic, your priorities (cost, fire and sound resistance, eco-content, air-sealing), and the space. Blown-in fills gaps well, batts are budget-friendly, spray foam air-seals, rockwool resists fire and sound, and cellulose is eco-minded. We'll walk you through the trade-offs and match one to your home; each material also has its own page with the full details.
Not always. If the existing insulation is dry, clean, and simply thin, we can often add over it to reach the right R-value. But if it's wet, moldy, compressed, or rodent-contaminated, it should be removed and hauled away first — see our attic insulation removal service — so the new insulation performs and your attic is healthy.
Yes, when the existing insulation is in good shape — dry and uncontaminated — topping it up to the right depth is a common and cost-effective approach. We confirm the condition during the assessment before recommending it.
Yes. Insulation slows heat moving in either direction, so it helps keep heat in during winter and out during summer. That's why proper attic insulation pays off year-round in the Bay Area, not just one season.
Most residential attic insulation jobs are completed in a single visit. The exact time depends on the size of the attic, the material, how accessible the space is, and whether old insulation needs to come out first. We'll give you a clear timeline with your estimate.
Common signs: you can see the floor joists poking through the insulation, rooms that never hold a comfortable temperature, drafts, and heating or cooling bills that keep climbing. The surest way to know is a free assessment — we measure what you have against what your attic should have.
LOCALLY OWNED AND OPERATED

Serving the Greater Bay Area & Sacramento Area

Complete Attic Comfort

Ready when you are

Get Your Free Attic Insulation Estimate

Tell us how your home feels through the seasons, and we'll assess your attic, recommend the right material and R-value, and give you a clear, no-pressure estimate.

Free inspection
No obligation
No pressure
Written quote