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TRUSTED BY DANVILLE, CA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon334
    Verified drywall insulation services reviews

Verified Reviews for Drywall Insulation pros in Danville, CA

*The Angi rating for Drywall Insulation companies in Danville, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Drywall Insulation needs.

*The HomeAdvisor rating for Drywall Insulation companies in Danville, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Drywall Insulation needs.

Last update on May 19, 2026

Find Drywall insulation pros in Danville

Bay Valley Insulation Inc
4.7(
46
)

Serving Danville, CA and surrounding areas

Approved

In business since 1988

Free estimates

Warranties offered

"

Insulating the exterior walls of our two story, 1700 sq ft house, involved drilling holes between each stud, blowing in insulating material, plugging the holes, spackling over the holes, priming and finally painting the holes.  Two man crew was very efficient in setting up scaffolding and then doing the work described.  We got a chance to see what the insulation looks like inside the wall when the force of the insulation popped out a built-in bookcase that was not secured.  Its a solid blanket of insulation, filling in the entire space.   Very impressive.  The results have been very noticeable.  The house feels more comfortable, and the heater turns on less frequently.  We should have done this years ago. 

Last part of the project was to blow additional insulation into the attic, which went very quickly.  Overall, the project took 2 very long afternoons/evenings to complete.  It makes a mess around the outside of the house, but they did a good job of cleaning up each day. 


"
Additional Photos
Recommended by93%of homeowners
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Avatar for Greenshield, Inc.
Greenshield, Inc.
4.6(
96
)

Serving Danville, CA and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"They fit into my Roofing schedule perfectly as I had my roof off and needed some insulation at a certain time."
Response time8 hrs
32 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for Vortex Insulation, Inc.
Vortex Insulation, Inc.
4.8(
31
)

Serving Danville, CA and surrounding areas

Approved

In business since 2017

Free estimates

Offers commercial services

"professional and fast. We use this company for close cell insulation. Really great customer service also. I highly recommend them."
Blow in cellulose insulation into the garage walls
Spray foam insulation into the garage ceiling.
Old blow-in fiberglass insulation removal in the a
Response time1 day
82 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for Attic Experts, Inc.
Attic Experts, Inc.
4.7(
45
)

Serving Danville, CA and surrounding areas

Approved

In business since 2012

Free estimates

Small jobs welcome

"Attic Experts pulled out our old insulation and installed new. Since then, we've certainly noticed a positive difference in how well the house keeps cool in summer and warm in winter."
Droppings
Droppings
Droppings
Old Insulation
Old Insulation

+13

Response time7 hrs
1 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Attic Pros
Attic Pros
4.9(
233
)

Serving Danville, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2012

Free estimates

Small jobs welcome

"I was looking online for insulation contractors, and found Attic Pros, Chris and his team arrived on time installed brand new attic insulation, cleaned our Crawl space and installed insulation, they took photos before and after. I am very happy with the work was completed defiantly recommend these guys."
Blow-In Attic Insulation
San Jose, CA Attic Insulation Installation
Danville, CA Vapor Barrier Installation
Mill Valley, CA Crawlspace Cleaning
Benicia, CA Attic Cleaning & Insulation

+3137

Response time11 hrs
Response rate94%
142 neighbors recently requested a quote
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Avatar for Attic kings
Attic kings
5.0(
10
)

Serving Danville, CA and surrounding areas

Approved

Free estimates

Warranties offered

Customers say: True professional

"Attic Kings is a 5 star business. I had my insulation replaced and my home rodent proofed by them 3 years ago. They came out today just to check something for me at no charge.The customer service was and is outstanding. I highly recommend Attic Kings. They are very nice and kind as well."
Additional Photos
Response time5 days
Response rate100%
2 neighbors recently requested a quote
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Avatar for Insulation Alliance
Insulation Alliance
5.0(
26
)

Serving Danville, CA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Attic Professionals was awesome to work with and highly recommend their business for anyone looking for attic work. We hired his business to replace the insulation in our attic after I took care of a rat issue. We needed all the insulation and droppings removed, cleanse, and replace. Attic Professional crew were diligent with making sure the interior of our home was protected covering the walls and floors to remove the old insulation and did a great job installing the new insulation. Thank you for great service!!!!!!!!"
Soundproofing
Soundproofing
Attic Cleaning
Attic Cleaning
Attic Cleaning

+103

Response time2 days
Response rate93%
19 neighbors recently requested a quote
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Avatar for Atticare Construction
Atticare Construction
4.5(
172
)

Serving Danville, 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%
2 neighbors recently requested a quote
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Drywall Insulation questions, answered by experts

While it’s most common to sand plaster dry, it is possible to wet-sand plaster, too. Doing so can reduce the amount of plaster dust released into the air and make it easier to work in smaller, more delicate areas (such as around wall trim). However, some people find that wet sanding leads to more imperfections, which is why larger walls are more often dry sanded to ensure an even finish.

You can repair plaster ceilings yourself after the cause of the ceiling damage has been addressed. However, the repair can easily take 5 hours and can be slightly challenging for those without previous experience. If you do decide to flex your DIY muscle, have a helper to help hold the ladder and pass you the tools for safety purposes.

If you're comfortable hanging drywall yourself, you may be comfortable finishing it. But it's worth noting that finishing drywall adds several steps to the process and a lot of waiting time. Hiring a drywall installer may be the way to go if you'd rather spend your time doing other things or are nervous about leaving a rough surface.

Both plaster and drywall are durable wall finishes, but they differ significantly in installation, cost, performance, and aesthetics.

Installation & Cost: Drywall installation is faster and more affordable, typically costing $1.50 to $3 per square foot. It uses premade sheets, making it a more accessible DIY project. Plastering is a labor-intensive craft that requires specialized skills, pushing costs to $2 to $10 per square foot. It involves applying a wet paste over a lath framework.

Durability & Performance: Plaster is generally more durable, longer-lasting, and provides superior soundproofing. It is also a better insulator, which can help reduce energy costs. Drywall is easier to remove for future renovations.

Aesthetics: Drywall provides a smooth, uniform surface ready for paint or texture. Plaster offers a high-end, naturally textured look that can hide imperfections and is often preferred for achieving a classic or historic aesthetic.

Which is better? The choice depends on your priorities. Drywall is ideal for those prioritizing a lower upfront cost, faster installation, and DIY potential. Plaster is the better option for a higher-end project where durability, soundproofing, and a unique, premium finish are more important than the initial cost.

If your home was built before the 1940s and was not remodeled in the past 50 or so years, you probably have plaster walls. Aside from assuming, there are some practical ways to tell if you have plaster walls, including the following: If you knock on the wall and it feels solid, not hollow, if you can’t insert a thumbtack easily, if there are cracks that look like spiderwebs, or if your home has curved, arched, or swirled walls, doorways, or window openings.

If you have an unfinished basement or attic, you could examine the backs of any finished walls to check, too.

The Danville, CA homeowners’ guide to drywall insulation services

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

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