Find top-rated spray foam contractors and save up to 27% on energy bills
Compare 10 verified spray foam insulation contractors serving Ontario, California, backed by 882 customer reviews averaging 4.2★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Ontario 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:
I had Ram Insulation help with my attached garage project. They showed up on time with three-man crew and completed my 20' by 20' garage insulation within a day. They have done very nice and detail-oriented work and my garage looks brand new and ready for the next step.
Miguel and his team were referred to us by our HVAC vendor. We had them remove and replace the insulation in our home. Miguel, Adolfo and the crew were punctual and professional throughout the project. The entire project took 3 days and they did a great job of prepping our home, covering areas to protect and keep clean, removing the old insulation, and cleaning out any remaining debris before installing the new material. Adolfo took the time to explain what would happen during each part of the process including what things I can expect from having the work done. They were also good about the cleanup work when they finished. I already notice the difference in how much the new insulation is helping block out the heat inside my home. Hard working and dedicated crew. Would highly recommend using RAM for your home insulation needs.
Miguel’s team, Hector and Alfonso did an outstanding job of insulating our attic. They came bright and early and blew in insulation as well as laid rolls of insulation throughout our space. They were professional and courteous. They even had to deal with sharing space with a painting crew that was at our house to finish up a project. Super good folks and the insulation project was priced very competitively. Give Miguel a chance to bid for your business. You won’t regret it.
Recent Reviews:
Choosing Simple Value was a smart, easy decision. We wanted to improve our home's efficiency without a major renovation or budget. They provided exactly that—a valuable upgrade done simply and professionally. The crew worked quickly, cleaned up all debris, and even gave us a few maintenance tips. Our energy bills have started to decrease, and the house feels cozier. It's the definition of a high-value, low-hassle home improvement.
I am so pleased with the simplicity and results. The entire experience with Simple Value Insulation was hassle-free. The quote was easy to understand with no hidden fees, scheduling was simple, and the crew that did the work was skilled and polite. They did a thorough job air sealing and insulating our attic. The improvement in our home's ability to maintain temperature is significant. Finally, a contractor that focuses on providing core value without any fluff.
We hired Simple Value Insulation and the name couldn't be more accurate. The process was straightforward: a clear, no-pressure consultation, a fair and simple quote, and a professional installation. The crew was on time, worked efficiently, and left everything clean. They focused on doing the core job well—sealing our attic and adding quality insulation. Our home is noticeably more comfortable, and the value for the money is excellent. No complications, just great value.
Recent Reviews:
Good company and great workmanship. My house had so many ongoing projects and I was looking for a good company to give me some peace of mind regarding my attic and air ducts. This home is very old and needed many updates, those were part of it. They removed all the debris and the old insulation, as well removed all the air ducts and installed new flexible r6. Air ducts were hanged with some strapping, their project manager said it allows better air flow to the house. The work they did was very clean and it seems as their workers are well trained.
Recent Reviews:
I contacted attic cleaning contractors in my area and found Pure Eco. Great company to deal with. The attic cleaning and insulation job was completed in a timely fashion, their teams are professional and really know the job. I got several prices from other companies cause in Agura Hills we some other companies that does same job, but Pure eco were friendly, not pushy and honest. Not the cheapest, but we wanted to focus more on quality.
I cannot say enough good things about this company. We’re new homeowners and they took the time to educate us and give us very fair quotes. They were prompt, honest and super thorough with their work. The owner was personally texting us updates and sending photos throughout the entire process. Would definitely recommend this place to anyone getting insulation or air duct replacement! Amazing value for sure!
My experience with Pure Eco was outstanding, I was able to get my attic done in 1 day of work with a quick, courteous, very professional crew by Armando. I didn’t replace my air ducts since I moved into my house 12 years ago, I lost air flow and the layout was horribly messy, they need to be changed , it was the original ducts system, I had noticeable temperature differences in most of the rooms around my house after we checked the attic we noticed that there is no insulation at all but roofing debris. I am very pleased with the ending results. Thank you Armando for making that happen!
Recent Reviews:
We’ve always had amazing experiences with Total Comfort, and yesterday was no exception! Their technician, Ricardo, came out and quickly resolved our heater issue. He was incredibly professional, super attentive, and just an all-around great guy. You can tell he genuinely cares about his work and making sure everything is perfect. Highly recommend Total Comfort—Amazing Customer Service!
Total Comfort came to my house (via my new home build warranty). After explaining issue to the tech Ricardo, he quickly got up in the attic, diagnosed, fixed the problem and explained what he had to do. It seemed like only a few minutes and he was gone. I wouldn’t hesitate using Total Comfort again, even after warranty expires with builder . Thanks again to total comfort and my tech Ricardo.
Ricardo showed up to perform a warranty repair on the heater on my new home. He was able to identify and repair the issue on the spot, and corrected a wiring issue left by the contractor who performed the original install. He was efficient, professional, and skilled at his job.
Recent Reviews:
There was some pretty severe wind damage to my Mother's mobile home roof in Hemet during the January wind storm. And the roof was getting old. So she needed it redone. Tip Top Roofing Inc came out and did a swell job. The roof looks great. They communicate well out of their office and we are pleased with their work. If you are looking for a good roofing contractor, Tip Top Roofing, Inc is it.
Tip Top Roofing installed new roof on our house that had two layers of shingles. They pulled permit and scheduled inspection. Made one payment when job is completed. The yard is cleaned when they completed the job. Very satisfy with their work. Would use their service again if I have a need for roofing.
My roof was extremely damaged by the winds earlier this year. I contacted Tip Top Roofing Inc. for an inspection to find out whether patching the damage would be possible. After the inspection, their recommendations were to replace the roof due to the age of the shingles and the possibility of further damage with future windstorms. The price to replace the roof was absolutely AWESOME! The work performed was EXCEPTIONAL and the final roof is IMPECCABLE! Everyone I worked with throughout the process was wonderful. I highly recommend Tip Top Roofing Inc.
Recent Reviews:
My appointment was at 0530 hrs but they start taking delivery from 0700 hrs. Early morning company trucks start loading for their jobs. Direction: if you coming from Barstow, from H-15 take left on 147 exit (Bear Valley Road) and left on I Ave and right on Catalpa St. Customer is on left side. Sign board posted on the building BDI installed. Park your truck, go inside of the building and back in when alley is free. Can park on the road at night buy no washroom available.
Delivered a load here. I had to wait 30 mins for them to get propane for the forklift because they weren’t prepared for the day. They don’t have a dock. So took another 2 hours to unload my dry van. Nice people but not the best setup.
Be carefull when it comes to Roofdeck. There contract says Rood deck, but in reality they mean roofdeck only above living space, not the whole roof.
Direct: (323) 238-4212
Recent Reviews:
Recent Reviews:
Got what u need
The site is okay, but one side is completely filled with shipping containers. Therefore, parking is very difficult and space is extremely limited. The staff are nice.
These are the questions Ontario 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 10 verified Ontario contractors above for exact quotes.
Not finding the right fit in Ontario? Many spray foam contractors travel to nearby towns. These communities within about 60 miles all have verified contractors listed.