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Find Spray foam insulation pros in Mountain View

Bay Valley Insulation, Inc.
4.6(
192
)

Serving Mountain View, CA and surrounding areas

Approved

In business since 1988

Free estimates

Warranties offered

"Had a great experience hiring Bay Valley Insulation. The quote arrived very efficiently and was the price I was looking for. The crew of Tony and Henry arrived inside the scheduled window and work was completed in a timely manner that day. The job looked great in the blown attic and final clean-up was great. Thank you."
Response time1 day
Response rate85%
73 neighbors recently requested a quote
Avatar for Attic Pros
Attic Pros
4.9(
233
)

Serving Mountain View, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2012

Free estimates

Small jobs welcome

"Mr. Said Abdullah was our technician for service on April 25, 2023. This service was intended to be a routine visit. I was impressed how thorough and professional Said was. He examined areas inside, outside, and around the perimeter foundation. He observed the current rodent activity inside and pointed out entry points in areas previously rodent-proofed and, more importantly, identified new entry points around the exterior of our home. He used spray foam, wire mesh, and silicone to fill the entry points. He refilled the traps. I consider his work and effort to be exceptional. I will definitely ask Attic Pros to send Said on our next appointment. He is a credit to his company."
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%
147 neighbors recently requested a quote
Avatar for Insulation Alliance
Insulation Alliance
5.0(
26
)

Serving Mountain View, CA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Umar and El rocks!! I met 15 people for quotes and I picked them because of their honesty and competitive pricing. My house was infested by rays and mouse. We can hear them scratching at nightime from the corners of several rooms. At first we thought it was racoons but after several quotes, pics and videos, we saw the rats and their droppings everywhere! Our biggest problem was the rodent proofing, but then we found out our fiberglass insulation was only one ir two inches instead of the standard 12 inch for comfort. Another problem was the attic opening was from my bedroom and they creatively suggest to create a door from the garage attic with latch and seal my private room entrance. There were many holes on the light gap so they help to put light caps and closed the big gap on my furnace area to save energy. They use foam and mesh wire. It took them 9 hours and what impressed me was that they don't take short cut in blowing the loose cellulose insulation into 12 inch. They told us they were coming back the next day to get more cellulose supply. I really appreciate their hardwork, professionalism, and honesty. El even helped me to fit my furnace filter which I really appreciate! The cellulose has limited lifetime warranty and 5 years warranty for the rodent proofing. We went up to the attic for inspection and was impressed at how clean and nice smell our attic is now! They really make sure we're happy and satisfied and to call them anytime if we have any problem. That's really standing behind your work and A++ customer service by Umar and El! I'm pleased to recommend Attoc Professional company by Umar and El!"
Soundproofing
Soundproofing
Attic Cleaning
Attic Cleaning
Attic Cleaning

+103

Response time2 days
Response rate93%
18 neighbors recently requested a quote
Avatar for Eagle Shield
Eagle Shield
4.3(
18
)

Serving Mountain View, CA and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"I love this company! Garrett came to my home and assessed how efficient our current insulation, etc was. He was very informative and friendly — explained what we needed and how they could help. At the time, I decided to hold off and he never pushed the sale. When I was ready, he was quick to accommodate my schedule. His team: Angel, Luis, Tommy and TJ were great! They arrived early, were professional, courteous, kind, very helpful with my questions and were above and beyond to help fix things that I wasn’t even aware of. They also were more than happy to help with small problems that I had no idea how to fix. They worked quickly and cleaned up afterwards. You could tell they cared about their work which makes me feel confident that the job was done right. They were also fun to have around — my Great Dane loved them too! Garrett and Dave checked in with me during and afterwards to make sure things were going well and if I had any questions. I highly recommend Eagle Shield."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+9

Response time7 hrs
6 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Greenshield, Inc.
Greenshield, Inc.
4.6(
96
)

Serving Mountain View, CA and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"This is an awesome company to do business with. They are honest, reliable, and do an outstanding job. My insulation was very old and my upstairs had become unlivable because it was so hot. I sought out 3 bids and I decided to use this company because of the outstanding experience I had in working with them. The person who took my call was very helpful, courteous and warm. They came out right away to inspect and give an estimate. They did not try to upsell and I felt very comfortable in what they said I needed. The installers arrived on time, got the job done, were super conscientious and efficient. I cannot say enough about what a great company this is. My house feels so much better. Do not hesitate to contact them if you need insulation and you will not be sorry."
Response time8 hrs
32 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Atticare Construction
Atticare Construction
4.5(
172
)

Serving Mountain View, CA and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"We had a rodent infestation in our crawl space and insulation that had been installed upside down, a condition that can cause mold. I chose Atticare because they cleaned up the old insulation and rodent droppings, sealed entry points, sprayed to prevent mold, bacteria and viruses, installed insulation, and were clean. They cost more than other local insulation companies but I didn't have to hire a separate exterminator or worry about mold from the old insulation that was installed wrong. They arrived on time, answered questions and were very easy to work with. I would recommend them."
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
Avatar for AtticElite Insulation Solutions
AtticElite Insulation Solutions
4.6(
27
)

Serving Mountain View, CA and surrounding areas

Approved

In business since 1999

Free estimates

Warranties offered

"I actually had both my attic and walls insulated. Great price, on-time, efficient, clean-up and communication. Unusual from most contractors today. I would highly recommend these guys. Milo was our contact."
Get $500 Off Rodent Proofing
Get $500 off crawl space cleanup.
Get $500 off rodent proofing.
Spray Foam Insulation
Before Attic Clean Up

+77

Response time2 days
51 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for American Attics
American Attics
5.0(
8
)

Serving Mountain View, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"American Attic was everything they promised. Met with the owner , Sam, within a day to get a quote for removal of old insulation, rodent control and install of new insulation. He was professional and explained everything in detail of what was work was going to be done and how long it would take. We scheduled within a week at a reasonable price. His crew were neat, organized and finished on time! We were notified of some extra things that were found while they were on the job but were not pressured to have those things done. We recommend American Attic to friends or family and would definitely use them again."
Additional Photos
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Additional Photos

+52

Response time2 days
Response rate100%
9 neighbors recently requested a quote
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FAQs for spray foam insulation projects in Mountain View, CA

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.