
Serving San Martin, CA and surrounding areas
Approved
In business since 2019
Free estimates
Offers commercial services
"Very professional team. Provided clear options for my small insulation project of my shed."


Serving San Martin, CA and surrounding areas
Approved
In business since 2019
Free estimates
Offers commercial services
"Very professional team. Provided clear options for my small insulation project of my shed."

Serving San Martin, CA and surrounding areas
Approved
In business since 2009
Free estimates
Small jobs welcome
"Needed to insulate my house before closing escrow, called for a quote on a Monday and they were insulating the very next day. The owner Luis Knows his stuff, very knowledgeable. Would recommend. 👍🏼👍🏼"





+5

Serving San Martin, CA and surrounding areas
Approved
In business since 2008
Free estimates
Warranties offered
"Attic is all clean and insulated now! The team was great!"





+26

Serving San Martin, CA and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"Wais and his team did a terrific job removing old, shoddy, blown insulation in our attic, added new batt insulation, rat proofed it, reapplied insulation around the duct work, added a new attic fan, all in record time. Very pleased with how careful they were setting up and removing every bit of waste."





+3895

Serving San Martin, CA and surrounding areas
Approved
In business since 1999
Free estimates
Warranties offered
"They got the job done in one day, very careful personal. New insulation is working great. We are now waiting for the details on the rebate. Price was also good and affordable"





+77

Serving San Martin, CA and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
"American Attic was everything they promised. Met with the owner , Sam, within a day to get a quote for removal of old insulation, rodent control and install of new insulation. He was professional and explained everything in detail of what was work was going to be done and how long it would take. We scheduled within a week at a reasonable price. His crew were neat, organized and finished on time! We were notified of some extra things that were found while they were on the job but were not pressured to have those things done. We recommend American Attic to friends or family and would definitely use them again."





+52

Serving San Martin, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Emergency services offered
Air Sharks delivers expert HVAC services to homeowners across the South Bay, including installation, repair, and maintenance of top brands like Daikin and Lennox. We also specialize in improving indoor air quality with professional ductwork inspection and cleaning.\n\nOwner Khaled Alsaka built Air Sharks on a passion for transforming the HVAC experience through education, collaboration, and top-tier products. We provide personalized consultations and tailored heating and cooling solutions, taking pride in our craftsmanship, attention to detail, and commitment to five-star service.





+22

Serving San Martin, CA and surrounding areas
In business since 2010
Free estimates
Emergency services offered
"i can only say good things about working with Attic masters. Great communication, They came on time, protected our floors and hallway from insulation dust, took pictures of the before and after for us so we can get the rebate. overall, very easy and stress free company to work with. I would definitely use again, it was a pleasure to work with true professionals."





+204

Serving San Martin, CA and surrounding areas
In business since 1974
Credit card accepted
"The sales rep, Bryan, went above and beyond to answer all my zillion questions and concerns. He was responsive, knowledgeable and shared his expertise in not only insulation, but all in LED canned lights and dimmers. He was amazing and I would only ask for him again. I plan to refer others to him also in the near future. The installers were good too, letting me climb the ladder and look at the work, cleaning out the old insulation and advising me they found no termites or rodent droppings. I wish they would have vacuumed the bedroom where they brought in a lot of dirt on the carpet, and also used the shop vac in the garage afterwards, as I had to clean up afterwards, which took me an extra hour. However, overall, I was pleased."





+4

Serving San Martin, CA and surrounding areas
In business since 2010
Free estimates
Credit card accepted
"We had an infestation problem at the attic that required us to replace the insulation. Marcus from Attic Masters came over to check and to try and save anything from the insulation. According to him, it was worth it to just replace the whole attic insulation and to solve this problem once and for all. Marcus did his best to give us the best price he could and we decided to go ahead and do it.
Marcus worked at our house for 2 days in which he removed all the old one on the first day and the following day he placed the new insulation and the problem was over. The work that he did was professional and clean. All the old insulation was removed in bags and there was no dust or dirt in the house.
"





+7
Old insulation should be removed when it shows damage, contamination, or heavy deterioration. If you notice water stains, rodent droppings, mold, or large gaps, plan on taking it out to protect your home’s energy performance and indoor air quality. Removing compromised material eliminates health hazards, cuts energy loss, and sets the stage for a safer, more efficient attic—all while keeping utility bills in check.
R-value measures how well insulation resists heat flow—the higher the number, the better it slows heat transfer. The right R-value keeps your home warmer in winter and cooler in summer, saving energy year-round. Match the rating to your climate zone and have a pro verify performance over time, because moisture or settling can lower R-value and cut efficiency.
Attic insulation can stay in place for 80 to 100 years, but its performance often drops after the first 15. As dust, moisture, or mold build up, the material loses R-value and allows heat to escape. Schedule periodic inspections so a pro can tell you when replacement makes sense—helping you keep energy bills down and indoor comfort up.
You can over-insulate an attic. Beyond the recommended R-value, extra layers don’t add efficiency and can trap moisture, leading to mold or reduced performance. A local insulation pro can measure current levels, confirm the right target for your climate, and advise on any adjustments so you avoid future energy or maintenance headaches.
Insulation can be damaged by mold, pests, water leaks, or accidental electrical contact. When the material is compromised, it loses R-value and can introduce health hazards. Removing and replacing affected sections restores efficiency, while routine inspections from a qualified pro help you catch problems early and keep your attic safe and energy-smart.
From average costs to expert advice, get all the answers you need to get your job done.

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