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 on-site estimate · No pressure · We come to you
Why It Matters
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.
Material Options
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.
Fiberglass or cellulose blown in to fill the attic floor and hard-to-reach gaps.
Pre-cut fiberglass or mineral-wool batts fitted between joists and studs.
Recycled paper-based loose-fill — the eco-minded option.
Rigid panels for continuous, high-R coverage in the right assemblies.
Dense stone-wool batts for fire, sound, and moisture resistance.
Expands to air-seal and insulate tricky areas in a single step.
Do You Need It?
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.
How We Work
Insulation only performs when it's the right amount, evenly installed, over an air-sealed surface. Here's how we handle every job.
We inspect your existing insulation, coverage, and R-value, plus air leaks, moisture, and any rodent damage — so we know exactly where you stand.
We match the right material — blown-in, batt, foam, rockwool, or cellulose — and a target R-value to your attic, climate, and budget.
If the old insulation is contaminated, wet, or rodent-damaged, we remove and haul it away first, then air-seal gaps and penetrations.
We install the chosen material to a consistent depth and full coverage, fitting neatly around obstructions with no gaps or compression.
We confirm the target coverage, clean up completely, and walk you through the finished attic.
Why Attic Pros
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.
Real Customers, Real Results
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!!
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.
Tom Best came to our house to give us an estimate on new insulation. He was on time, very thorough and provided a detailed very reasonable estimate within an hour of his visit. What more could you want?
Samim great service my attic was left very clean meticulous. I am so happy with the work that him and his team did great service. I recommend them highly. I would give them a 10 if I could.
David from Attic Pros was professional, knowledgeable, and thorough. He clearly explained the extent of our rodent problem in the attic and showed us detailed photos and videos so we could fully understand the damage. He took the time to explain exactly what the rodents had caused and walked us through how the repairs would be completed. David was friendly, patient, and easy to talk to, making the entire process much less stressful. We really appreciated his honesty and professionalism.
We cannot say enough good things about Attic Pros! From start to finish, it was a great experience. We initially called for attic, crawl space and duct cleaning, as well as rodent proofing (sealing vents, etc). Samim came out and did a very thorough evaluation, showing us dozens of photos of areas that needed attention. He also recommended new insulation, which we hadn’t considered and told us our dryer vent needed repair. It took us a few weeks to schedule, during which time Samim followed up periodically, never pushy, always answering our questions and providing more info. His professionalism and knowledge was a huge reason why we chose to work with Attic Pros. On the day of the job, Osman and crew cleaned the attic and crawl space and installed new installation, while Douglas repaired the dryer vent and Kevin cleaned the ducts. They did an amazing job sealing off the work areas and keeping the house clean, despite it being very messy and grueling work! They spent about 3 hours vacuuming the attic and another half a day sweeping the crawl space by hand. Their attention to detail was above and beyond what we expected. We were sooo impressed! And Samim’s recommendations were spot on - our dryer is much more efficient now and we noticed the house was cooler within hours of the new insulation being installed (it was the height of summer). We’d use and recommend them again and again!
QUESTIONS, ANSWERED
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.
Talk to our team — we're here to help.
(800) 543-0382Explore More
Ready when you are
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.
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