
Serving Rohnert Park, CA and surrounding areas
Approved
In business since 2018
Free estimates
Customers say: Quick response
"Great communication and very excellent customer service highly recommended!"


Serving Rohnert Park, CA and surrounding areas
Approved
In business since 2018
Free estimates
Customers say: Quick response
"Great communication and very excellent customer service highly recommended!"

Serving Rohnert Park, CA and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"very well - workers were on time and did a good job"





+9

Serving Rohnert Park, 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 Rohnert Park, CA and surrounding areas
Approved (Corporate)
In business since 1950
Free estimates
Credit card accepted
"Estimator Cruz was professional, on time, excellent with communication and patient with all my questions and explained my options very well. Thank you Cruz! Tom and Jose who came to install my insulation where very professional, clean, on time and did an excellent job! I highly recommend Coast Building Products!"




Serving Rohnert Park, 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 Rohnert Park, CA and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"This company came in a updated our 40-year old home insulation with new R-38 batting. We were impressed how much attention to detail the company has for removing old insulation, clean-up, disinfection, and installing new insulation. They also replaced a damaged dryer vent in the crawlspace. Nico and Jeremy were a great combo to work with from quote through install. I plan on calling them back in spring for another project."





+3895

Serving Rohnert Park, 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 Rohnert Park, CA and surrounding areas
In business since 2010
Free estimates
Emergency services offered
"I hired Attic master to come over and check the attic for some bad smell. Adam came over to my house and went up to the attic and checked the problem there... He recommended me to remove the old insulation and to place a new one. His price and warranty were good... so i hired them. The following morning, he came over with his worker and took out all the old insulation while his worker placing the new one. The work was completed the same day and the problem of the bed smell has been solved."





+204

Serving Rohnert Park, CA and surrounding areas
In business since 2020
Free estimates
Credit card accepted
"Tempest insulation with Fernando are going to be my go to team for any future insulation needs. I used tempest for a R44 blown in insulation. Fernando was on time for the estimate, sent me a follow up with responses to all my questions and began the work at 8 am on the dot! He and his crew were timely, professional, clean and were in and out of my place in less than a day and cleaned up everything after themselves. I would highly recommend them!"





+8

Serving Rohnert Park, 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
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.

Budget for attic insulation removal costs based on factors such as attic size, insulation type, site condition, hazardous materials, labor, and more.

Use this guide to budget for roof repair costs based on factors such as roof condition, materials, size, repair type and severity, and more.

Need fascia and soffit repairs? Hiring a pro ensures proper installation, protects against pests, and prevents structural damage. Learn about common warning signs, material options, and how fascia and soffits safeguard your home from moisture.

Our comprehensive cost guide will help you explore the costs associated with roof replacement, including roof pitch, shape, design, square footage, and more.

Learn who to call for HVAC inspection. Discover which pro to hire, what to expect from an HVAC inspection, and average costs for your home.

Finish your home project on a budget with this cheap windows buying, installing, and replacement guide.