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TRUSTED BY SEBASTOPOL, CA HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon105
    Verified drywall insulation services reviews

Top-Rated Drywall insulation pros in Sebastopol - Updated Nov 2026

Avatar for Redwood Insulation
Redwood Insulation
4.9(
16
)
Blown-In Insulation - Install or Upgrade

Serving Sebastopol, CA and surrounding areas

Approved

In business since 2018

Free estimates

Customers say: Quick response

"Matt was very good about keeping all appointments and very friendly. His work on the insulation was nice and neat and very effective. Good adhesion in all surfaces, and he even made a special trip back on our small job to finish insulating several windows. Matt gave the best service and best product of all the contractors I’ve had to hire in the last year. We may ask him to come back and insulate the rest of the garage!"
Response time2 days
11 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Attic kings
Attic kings
5.0(
10
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallInsulation - Install or Upgrade

Serving Sebastopol, 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!"
Additional Photos
Response time5 days
Response rate100%
3 neighbors recently requested a quote
Avatar for Coast Building Products
Coast Building Products
4.5(
14
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Sebastopol, 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!"
Spary foam rooof line
Batt installatoin
Applying Spray Fiam
Response time8 hrs
Response rate100%
28 neighbors recently requested a quote
Avatar for Atticare Construction
Atticare Construction
4.5(
177
)
Blown-In Insulation - Install or Upgrade

Serving Sebastopol, 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."
Before Atticare Services
After Properly Sealing the Access
After Insulation Installation
Clean and ready for Insulation Installation
After Insulation Installation

+26

Response time2 hrs
Response rate91%
29 neighbors recently requested a quote
Avatar for Ace Insulation, Inc.
Ace Insulation, Inc.
3.5(
30
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Sebastopol, 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."
Response time2 days
59 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Attic Masters insulation Services
Attic Masters insulation Services
4.8(
111
)
Blown-In Insulation - Install or Upgrade

Serving Sebastopol, 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."
HVAC Duct Replacement
Insulation Installation & Attic Cleaning
Air Sealing & Rodent Proofing
New Construction
Vapor Barrier Install

+204

Recommended by94%of homeowners
Avatar for Attic Masters
Attic Masters
4.7(
33
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallInsulation - Install or Upgrade

Serving Sebastopol, CA and surrounding areas

In business since 2010

Free estimates

Credit card accepted

"I was referred to this company from a friend that used them in the past. I needed to remove part of drywall and replace the insulation inside due to a leak from one of the pipes. At first I called the office and told them what the problem was. The office sent Juan to my house to check and see the job. Juan came over the following day and looked the problem. He was able to give me a quote on the spot. 
The price seem to be fair so I hired them for that job. Juan than scheduled me for 2 days later and he told me that it will take 1 day to complete and another day to paint. 
I was happy with the fact that he came over when he said he will and he did complete the job the same day. The paint work was completed the following day and I?m happy with the results.
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+7

Recommended by95%of homeowners
Showing 1-10 of 34
Drywall Insulation FAQs, answered by experts

Yes, you can install drywall over plaster, but there are important factors to consider. While it can create a smooth, flat surface, it is often not the best approach. Installing drywall over plaster will increase the wall's thickness, which can cause issues with existing window and door frames that may no longer fit. You might also need to adjust power outlets to keep them accessible. A better, though more expensive, option is to remove the old plaster and lath entirely before installing new drywall. Drywalling directly over plaster seals in the old material, and if any problems arise later, you will need to remove both layers down to the structural beams for repairs. Given the potential complications, this job is best handled by professionals.

The cost to install drywall is between $1.50 and $3 per square foot, while shiplap installation costs between $2 and $7 on average. In most applications, shiplap installations cost more than that of putting in drywall. However, several ways exist to reduce shiplap prices, especially for small locations or accent walls, which can keep the total cost of shiplap competitive with that of drywall.

You can put drywall mud over paint to even out the surface or entirely resurface it. Sand the surface with 280-grit sandpaper, vacuum the debris and dust with a shop vac, and clean it with a slightly damp cloth. Allow the surface to dry. Apply drywall primer, especially if you’re skim-coating an entire wall. Apply the right type of drywall mud over the surface and smooth it with a trowel. Allow the layer to cure fully, then sand it before applying another layer or painting it.

Your walls are likely cracking due to fluctuations in the temperature outside. Drywall tends to expand and contract when temperatures and humidity levels change, and this repeated movement can lead to cracks in your walls, particularly around door frames. If you have multiple diagonal cracks, you may want to have your foundation inspected, as cracks can also be a sign of a bigger issue.

If you only have tiny holes in your drywall (for example, dents or nail marks), you probably won’t need a patch kit. Instead, you can plug the hole with a small amount of spackle. Once the spackle dries, you can sand the area and paint over it—just like you would in the steps outlined above.

The Sebastopol, CA homeowners’ guide to drywall insulation services

From average costs to expert advice, get all the answers you need to get your job done.