Get matched with top insulation pros in San Rafael, CA

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4.8

(39 reviews)

Top-rated insulation pros.

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Bay Valley Insulation Inc
4.7(
46
)

Serving San Rafael, CA and surrounding areas

Approved

In business since 1988

Free estimates

Warranties offered

"We needed retrofit wall insulation and after checking around all the listings through AngiesList, Yelp, and others, we found that only Bay Valley and SDI does retrofit wall insulation work. We went with Bay Valley because the price was reasonable and they responded quickly and promptly (can't say this about SDI*). Joel was our estimator and he came out promptly at the time and date indicated. He was thorough and thoughtful on how he approached the job, not overselling or recommending things we didn't need. We live in an older house and he appreciated the home and looked for the most non-invasive method to take care of our un-insulated exterior walls. Bay Valley's approach is to come in from the exterior walls with the typical 2-hole process (high/low) to blow in the cellulose insulation. They sent two guys in and despite a couple snags in the job, they finished the job in one full day. Afterwards, they plugged the holes, textured and primed, and the next day came in to paint (our-supplied) paint. I was really amazed how well and seamless it all looked afterwards. They did a good job cleaning and even moved the cabinets in the garage back where they originally were. The real result? The mornings have been a little bit warmer than last week, but so far the heater has barely turned on over the past couple days. The house already feels warmed and less temperature fluctuations. We already got brand-new attic insulation last Fall, but the wall insulation really did the trick. A definite recommend to anyone who needs a good team to do insulation in their home. * dealing with SDI was a nightmare, unfortunately. With *several* calls about being in the ER, then lots of other excuses, it just didn't seem like they wanted to do the job or something. I originally made the request in August and this morning on Nov 10, I got a phone call inquiring if we still needed insulation done. sigh."
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6 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Attic kings
Attic kings
5.0(
10
)

Serving San Rafael, 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 time2 days
Response rate85%
4 neighbors recently requested a quote
Avatar for Attic Pros
Attic Pros
4.7(
101
)

Serving San Rafael, CA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Getting my attic cleanup and insulation installed was expertly done by Attic Pros. Couldn't be happier with the result. They are definitely pros!"
Fortify your home’s attic with high-quality insulation and strategic rodent-proofing.
Lock in warmth and lock out pests with expert attic insulation and rodent-proofing.
Transform your attic into a pristine, energy-efficient area with our insulation and sanitation services.
Maximize your attic’s efficiency and hygiene with expert insulation installation and sanitation services.
Create a healthier living space with expert attic insulation installation and deep sanitation.

+3895

Response time9 hrs
Response rate97%
21 neighbors recently requested a quote
Avatar for Attic Masters insulation Services
Attic Masters insulation Services
4.8(
111
)

Serving San Rafael, 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
)

Serving San Rafael, 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.
"
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+7

Recommended by95%of homeowners
Avatar for Green Apple Duct Cleaning
Green Apple Duct Cleaning
5.0(
18
)

Serving San Rafael, CA and surrounding areas

In business since 2016

Free estimates

Credit card accepted

"Tony and Green Apple were awesome. He gave a quote and stuck with it, even when the job turned out to be more extensive than he anticipated, showed up 15 minutes early (after giving me a courtesy phone call to let me know he was on his way), and worked very hard for three hours to clear at least 30 years of dust and debris out of the duct work. He had a sense of humor, respected the property, left the house clean and ducts spotless. Don’t hesitate to use Green Apple!"
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+18

Recommended by100%of homeowners
Avatar for Evergreen Air Duct Cleaning
Evergreen Air Duct Cleaning
5.0(
28
)

Serving San Rafael, CA and surrounding areas

In business since 2000

Free estimates

Credit card accepted

"Excellent service and good people to work with! Adam was very generous to us when we contact the office and asked for their help with the problem at our house. The insulation had to be replaced based on an inspector requirements. 
The replacement work took 3 days in a row and the workers did a good job. we will hire them in the future.
"
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+2

Recommended by95%of homeowners
Avatar for Mega Power Electric, Inc
Mega Power Electric, Inc
5.0(
191
)

Serving San Rafael, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"We recently had Mega Power Electric Inc install a solar system and panels. The President and provided excellent communication all the way through the process. He even met with us after installation to explain the almost incomprehensible PG&E bill. Although not the least expensive bid, his was competitive and I felt he was as interested in educating me about solar and the various types of panels and inverter systems as he was in selling a system. He demonstrated how the array of panels would meet our energy needs and as opposed to some of the other companies, wasn't selling us more than we needed. We are very satisfied with our solar system and I highly recommended Mega Power Electric Inc."
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+32

Recommended by100%of homeowners
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FAQs for insulation service projects in San Rafael, CA

When choosing a professional insulation installer, consider asking these questions to determine the best fit.

  • Will you address air leaks in my house?

  • Can you provide an R-value (heat resistance) fact sheet?

  • What kind of insulation will work best for my home?

  • How do you handle signs of a water leak?

  • Are you licensed and insured?

  • Can you provide customer references?

The best type of insulation for your home depends on what you need, so the answer will depend on your specific situation. If you’re building a house, structural panels are easy to install during the building process in addition to being the most energy efficient type. If you live in a warm climate, reflective insulation may benefit you more as it costs less than other insulation types. And for standard attics, loose-fill, spray foam, or blown-in insulation work well.

If you plan to heat or cool your garage, you’ll need to insulate the garage ceiling. Insulating your garage ceiling will make your garage much more energy efficient and save on heating and cooling costs. Not only does insulation make your garage more energy efficient, it helps reduce noise and can extend the life of your garage roof. You can use fiberglass, cellulose, mineral wool, or spray foam insulation for this project.

In some cases, you may not have enough insulation to properly regulate your home’s temperature. Watch for a few signs your home needs more insulation, such as:

  • High heating and cooling bills

  • Uncomfortable room temperatures 

  • Ice dams on the edge of your roof 

  • Roof leaks

  • Cold floors and walls

  • Freezing pipes

  • Temperature fluctuations

  • Visibly low insulation

  • Noise problems

  • Pest problems

On average, insulating an attic costs about $2,500, ranging from $1,500 to $3,500, depending on the insulation type, amount, and your attic’s accessibility. Additional cost factors include sealing air leaks, removal or replacement of insulation, and inspections. Types of insulation include:

  • Blown-in: $1–$4 per square foot

  • Spray foam: $2–$5 per square foot

  • Batt: $2–$4 per square foot

  • Structural insulated panels: $4–$7 per square foot

  • Loose-fill: $2–$5 per square foot

  • Reflective: $0.50–$1.50 per square foot

The San Rafael, CA homeowners’ guide to insulation services

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