
Serving Ross, CA and surrounding areas
Approved
In business since 2017
Free estimates
Offers commercial services
"They did a terrific job insulating our new home in Oakland. Great value and professional."





Serving Ross, CA and surrounding areas
Approved
In business since 2017
Free estimates
Offers commercial services
"They did a terrific job insulating our new home in Oakland. Great value and professional."




Serving Ross, CA and surrounding areas
Approved
Free estimates
Warranties offered
Customers say: True professional
"Moshe and his team at Attic Kings are amazing! When I contacted them, they got back to me almost immediately with a date and time for an estimate to install insulation. Moshe was very communicative, texting and calling to let me know when he would arrive. On installation day, Moshe made sure to keep everything as clean as possible, and everything went incredibly well. They are all so kind--would definitely hire again!"


Serving Ross, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2012
Free estimates
Small jobs welcome
"Melesio and his team did an excellent job removing old insulation/cleaning, rodent proofing/sealing, and installing new insulation all in one day."





+3137

Serving Ross, CA and surrounding areas
Approved
In business since 2008
Free estimates
Warranties offered
"The crew arrived on time and installed plastic on the floor and walls for protection. They did a good job removing the old insulation and installing new insulation. The crew did a great job cleaning up. Nice professional job."





+26

Serving Ross, CA and surrounding areas
Approved
In business since 2018
Free estimates
Warranties offered
"wilson and his team arrived at 9am the early side of the window provided. He quickly started his set up began what would turn out to be a long day for his team. Provide clean out of old existing insulation, sanitized attic and sealed and prepped for attic fan and new insulation. Wilson and his team took pictures of all stages of work. Cleaned left area as if they never had been there."





+3

Serving Ross, CA and surrounding areas
Approved
In business since 2011
Free estimates
Credit card accepted
"Ace was the lowest price and used the best insulation material which was fiberglass not cellulose. They showed up when expected and did a good job, we know, my husband was a building inspector before he retired."

Serving Ross, CA and surrounding areas
Approved
In business since 2003
Warranties offered
Credit card accepted
"Divine Electric was quick to respond to inquiries. It was easy to book an appt and a professional technician was sent on location. Our electrician was Josh and he was absolutely professional, efficient and was diligent in working through the problem. He fixed the issue and was very courteous while he was at our home."





+4

Serving Ross, 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 Ross, CA and surrounding areas
In business since 1974
Credit card accepted
"Every person that came into our home from Tri-County was very professional and respectful. They covered everything with plastic before removing the insulation and again when blowing it back in. They cleaned up and disposed of the plastic, vacuumed the attic and cleaned up after themselves such that you would never have known they were here. The job of sealing the attic was done so well that the inspector made a comment that he had never seen a job done as well as this and ask who had done the work. He gave them very high praise.
The salesman we had, Bryan Zailer, was very knowledgeable and helpful. He would call back immediately if we had a question and stop by to check on things. I would highly recommend Tri-County to everyone for their insulation needs."





+4

Serving Ross, CA and surrounding areas
In business since 2010
Free estimates
Credit card accepted
"We had an inspection and we had to replace the insulation in the attic. We were able to get a good deal from this company after we reached them via a referral.
The work that they did was very good and professional. there were several employees at the house for the 2 days work that they did. We do recommend this company for any insulation replacement that you may need.
"





+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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