Find top-rated spray foam contractors and save up to 27% on energy bills
Compare 7 verified spray foam insulation contractors serving Redwood City, California, backed by 1,129 customer reviews averaging 4.9★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Redwood City contractors handle both open-cell and closed-cell spray foam. Homeowners here typically cut energy bills by around 27% — get free quotes and read verified reviews below.
Note: Actual savings vary based on home size, current insulation, energy rates, and climate conditions. These estimates are based on Department of Energy data for Hot-Dry.
Recent Reviews:
Idan does not disappoint! This is our second time using his services, and this time I went straight to him without even shopping around. His team is responsive, efficient, and highly professional. A major bonus is their expertise with home insurance systems, which made that part of the process effortless for us. Later, despite a dispute over the scope of work (which was due to a miscommunication, not his fault), he stood by his word and honored his promises, even when it resulted in a significant financial loss for him. His integrity, particularly in that situation, is truly commendable!
After experiencing a roof leak that led to multiple issues, I interviewed several companies before ultimately choosing Leader Restoration, and I’m so glad I did. From start to finish, the process was smooth and professional. I worked closely with project manager Idan, who was knowledgeable, responsive, and easy to work with. Leader Restoration handled everything seamlessly—including coordinating with my hygienist for the final mold inspection, which we passed on the first try. Their expertise in mold remediation and dedication to quality restoration services truly stood out. I couldn’t be happier with the results and highly recommend them to anyone facing water or mold issues.
We discovered mold during our home remodel and contacted Leader Restoration. Idan, the project manager, was incredibly professional, and Julio, the lead technician, did excellent work. The mold remediation process was smooth, the price was competitive, and we got clearance in less than a week. Highly recommend them for reliable mold removal and restoration services!
Recent Reviews:
Jorge and team were exceptional to work with. The removed our old insulation, sealed the attic and added new fiberglass insulation, explained each and every step and went great lengths to do rodent proofing. And all it took was few hours. Jorge also came few months later to fix some of the gaps that the HVAC crew left in our attic. I highly recommend Ideal Attic for your insulation needs. Their price was the lowest as well among all other quotes.
I feel very fortunate to have found Ideal Attic Insulation to work on the attic and crawlspace of our newly purchased home. From the start, Jorge came to provide a free inspection, and he was extremely professional and thorough. He personally went into the attic and crawled into the crawlspace to check every detail. After his inspection, he gave us a very fair estimate with a clearly written and complete scope of work. We also requested quotes from other companies, but it became clear that Ideal Attic Insulation—and especially Jorge—was the most professional, responsible, and knowledgeable. Jorge even helped us connect with other reliable handymen for additional repairs we needed around the house, which we truly appreciated. Once our plumbing repairs were completed, we scheduled the attic and crawlspace work. Jorge’s team handled the attic cleaning, sealing, rodent-proofing and new insulation installation. In the crawlspace, they performed a full cleaning, rodent-proofing, and installed a new vapor barrier. The scheduling was quick, and everything was completed within three days. The workmanship was excellent—clean, organized, and very professional. We really trust Jorge and appreciate his honesty, experience, and dedication. I highly recommend Ideal Attic Insulation to anyone looking for attic or crawlspace services. We will definitely continue using this company in the future. Highly recommended!
Jorge is the best. My wife and I had contacted 4 companies, and by far Ideal Attic Insulation was the winner. With us it wasn't all about price, but quality, knowledge of the trade and experience. We had our old insulation removed when we replaced our roof. Yes, like lot of us when your roof is compromised you have issues with rodents. Once our roof was completed, we set our appointment with Jorge. He came out the following afternoon, and boy was it hot. He inspected our entire attic and came up with a game plan to vacuum and sanitizing our entire attic space. He took a lot of pictures and shared areas of concern with us. We had the roofer's comeback out and tighten up area that may have been able to be compromised. once these areas were tightened up Jorge sent out his crew to install mess wire and stray foam around vent pipes, etc. Jorges recommended we wait a few weeks to install the insulation to see if there were any signs of rodents. After a few weeks and weekly inspections by Jorge and his crew, there were no signs of pests. They installed the insulation, and we could not be happier. We highly recommend Ideal Attic Insulation. Don't waste your time looking for other insulation companies call ideal Attic Insulation and know you made the right decision.
Recent Reviews:
Working with Greenshield was a great experience from start to finish. Booking the attic insulation was straightforward, and the pricing was great. The installers were courteous, organized, and respectful of my home, which made a big difference to me. After seeing the results, I hired them again a few months later to insulate the exterior and interior walls for sound control. The improvement was immediate — noise from the other bedrooms is no longer an issue like it was before. On top of that, my heating costs have dropped noticeably since the work was completed. I honestly wish I had done this sooner. I’m going to recommend this company to my friends and family.
Greenshield deserves 5 stars. 1. They are very flexible to work with. 2. Sounds professional throughout the project. 3. Keep up to their promise. 4. Workmanship is excellent: I replace my attic insulation and air duct system to help me with my allergy problem (I remove insulation, next install new HVAC system, finally install insulation. I have abestos removal, so this is the best sequence for me.) - They clean very well. Using negative pressure vacuum, they suck and remove all the junk, blown in, batt and left nothing behind. I personally went up to inspect their cleaning after they were done. (I pay extra attention to the cleaning process because I don’t like the musty smell of an old house. I have allergy, so air quality is important to me. They also sprayed to disinfect the attic.) - Installation is very good. They put back brand new thick R38 insulation beautifully. They reach even the furthest corner. Every part of the attic is covered. 5. They stand behind their work. I am glad to deal with Greenshield. I have no headache or hiccup in the entire process. As a regular home owner, I have zero knowledge prior to this. 6. They have rebates, so at the end their price is competitive. They do all the rebate for me. I shop at many other places and finally decided to go with Greenshield. My recommendation just go through Greenshield in the first place and save your time. They give you the price upfront and no need for negotiation like other contractors/company.) Due to the rebate, there will be an inspector from CA Energy Program coming to inspect to make sure it is done correctly and up to code. ( I have a piece of mind knowing their work has QA from a government agency.) 8. Usually old house has aging sheetrock and especially in bathroom due to moistures build up over time. It is very easy to crack/break sheetrock and to be fallen off from the ceiling. You don’t want to hire a handyman or no name contractor doing this job. Finally, the biggest win here is you don’t have headache dealing with contractors, and you know you can trust them to install insulation with good workmanship and use quality material. P/S: Greenshield did all the rebate application for me. Inspector came 3 days they finished the job. My rebate was approved within a week after the insulation. I was surprised how quick and easy the rebate process was.
I'm pretty happy with the insulation work. The room above my garage had cold floors so Greenshield punched holes on the garage ceiling drywall, blew in several bags full, and patched up the holes and cleaned up everything afterwards. They showed up on time, did very clean work, was very professional and most importantly the outcome was great. The room floor is no longer cold and the house is better insulated than before. The price was very competitive and they knew exactly what to do. Highly recommended.
Recent Reviews:
As a contractor you're always looking for the best supplier of insulation, someone who can provide you with competitive prices, hardwood and quality. Vortex insulation is the best option! Their office manager Mike made everything so easy and the owner Luis and his team installed it all right away and perfect. These guys are the best insulation company in the whole Bay Area!
These guys are the best! Extremely quick service and a true dedication to their customers. I had a complicated request about exposed beams and they worked nights and weekends to make my vision come to life and stick to their original date. Would recommend them 5,000%. Great value, great quality, great service!
We hired Vortex for a ceiling and wall insulation. The service provided by Vortex was excellent, fast and their employees were very respectful and professional. Price was very reasonable. We recommend this company for any insulation needs. Overall experience was good. Customer service at all levels was excellent. We give this company 10 plus stars.
Recent Reviews:
Highly recommend this company to anyone looking to have their attic cleaned up and re-insulated. We were dealing with HVAC running constantly and still unable to cool down the house effectively. Oumar visited for an initial inspection and came back with a bunch of photos from the attic. He walked us through all the various options we could benefit from, and left us with a competitive quote, without ever being pushy. On the day of service, Dani and his team were extremely professional in their job. They took care of a bunch of rodent mess in the attic and sealed a lot of rodent entry points. They took care of every small task I asked them to do, and left the whole house cleaner than they started with. Attaching some before and after photos for reference. Even though the HVAC still runs constantly, at least it is able to keep up with the heat and bring temperatures down. Just go for them!
Attic Elite team has done a tremendous job at our place. Looking at the before and after picture clearly justifies the amount of effort they had to put in to get things done. They cleaned up the attic and crawl space really well and worked their way with ducts and insulation in the best possible manner. Omar is really helpful in understanding our needs and gave us the best estimate in market which we couldn't refuse. Highly recommend to consult the team for their best services.
We hired Attic Elite to clean and rodent-proof our church attic, and overall we are very pleased with the experience. Although the crew arrived later than expected, they stayed until the job was done and made sure everything was completed properly. Our attic had been in poor condition for a long time—it was very dirty, dusty, and there were several openings that needed to be sealed. The team worked hard despite the difficult environment. They cleaned thoroughly, removed all the mess, and sealed the holes with care to ensure rodents won’t be able to get back in. It was not an easy project, but they handled it professionally and left the attic in excellent shape. Now our church can use the space with peace of mind, and we really appreciate their effort and attention to detail. Thank you, Attic Elite, for helping us restore and protect our church attic!
Recent Reviews:
This company has great tenacity and work ethic I would 100% refer someone to their services as they are the best in the industry. Don’t look any further, go with Eagle Insulation they will take care of you.
The very best experience, friendly staff , excellent service,highly recommend.
Thank you the insulation is amazing great job guys
Recent Reviews:
I recently had Atticare come out to clean and insulate both my attic and crawlspace, and I can’t say enough good things about the experience! Sean was my technician — super friendly, on time, and clearly knew his stuff. He showed me photos before and after, explained everything in plain English, and made sure I understood exactly what was being done.
I recently had Atticare come out to my house last year to remove old insulation and then lay down new insulation along with rodent proofing the attic. A little over a year later Rats were still getting into my Attic and even though my warranty had expired Attic care was nice enough to send out their engineer Kyle to address the issue. Kyle spent several hours at my house today to do a thorough inspection and rodent proofing of any access areas were the rats might be getting into my attic. Kyle also repaired my air ducts the rats were chewing, cleaned up the attic of any droppings and completely sanitized. Very happy with the follow up work Kyle was able to complete today.
I recently used Atticare for my home in Pasadena, and I can honestly say it was one of the best home service experiences I’ve ever had. The team showed up right on time, explained the process in detail, and got to work right away. They removed the old insulation, cleaned and sanitized the attic, and installed fresh insulation that made my home feel instantly more comfortable. What impressed me most was how thorough and professional they were. They didn’t just do the job—they also sealed entry points and made sure my attic was protected for the long term. It’s such a relief to know my home is cleaner, safer, and more energy efficient. I highly recommend Atticare 5 stars all the way!
These are the questions Redwood City homeowners ask most about spray foam cost, R-value, and open- vs. closed-cell foam — with context for local pricing and roughly 27% typical energy savings. Compare the 7 verified Redwood City contractors above for exact quotes.
Not finding the right fit in Redwood City? Many spray foam contractors travel to nearby towns. These communities within about 60 miles all have verified contractors listed.