Find top-rated spray foam contractors and save up to 35% on energy bills
Compare 6 verified spray foam insulation contractors serving Crystal Lake, Illinois, backed by 389 customer reviews averaging 4.6★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Crystal Lake contractors handle both open-cell and closed-cell spray foam. Homeowners here typically cut energy bills by around 35% — 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 Cold.
Recent Reviews:
You will not be disappointed, L B Hall installed fire proofing in my building and for my brokerage, they were very competitive with pricing and did a great job since then I have recommended them to several competitors because of their workmanship and the level of service that we received.
L B HALL Excellent experience from start to finish !! They are very professional ! everything was done on time ! I highly recommend this Company to anyone looking for reliable high quality service !!
The L B Hall Team is very knowledgeable, friendly and professional. I would highly recommend them for any size commercial job 🎉
Recent Reviews:
Koala installed solar attic fan, sealed canned lights & other openings & added 3 to 4 inches of insulation. Chris, Nick & Pablo and entire crew were professional & communicated through out the process. I would recommend them if you need work in your attic or are looking to have a solar attic fan installed.
I recently hired Koala Insulation, one of my fellow members from my BNI chapter, to add insulation to our crawl space. These guys were awesome! From start to finish, communication was outstanding. They showed up exactly when they said they would, were super friendly, and delivered a high level of customer service that’s hard to find these days. We’ve had our fair share of contractors who left messes or damaged things around the house, so we were impressed by Koala’s care and attention to detail. They took the time to tarp, protect, and clean up thoroughly—AMAZING. Professional, courteous, and top-notch work ethic. Highly recommend!
Came on time, answered any questions we had. Worked hard and was very polite and respected our property. Showed me after pictures, and cleaned up afterwards.
Recent Reviews:
I had an awesome experience with Paragon Insulation & Services. They were extremely professional and showed up right on time. The technician worked his butt off the entire day — super friendly, respectful, and clearly knows what he’s doing. He removed all of my old attic insulation, fully sealed and deodorized the space, and then refilled everything to the proper insulation levels. The difference is incredible. The price was very fair, and the quality of the work exceeded my expectations. I’m very satisfied with the service and would highly recommend them to anyone needing insulation work!
Randy was awesome! He came by to give me a quote for insulation, but when he realized I wouldn’t meet his minimum, he gave me suggestions on what to do instead. He was very honest and just a good overall guy. I would definitely recommend him for your insulation needs. Also, he runs a YouTube page which to me shows he is very passionate about his craft and wants to make sure everyone has proper insulation- even those who are too far away to use him!
Just used Paragon for closed cell spray foam and was happy with everything. Randy and the rest of paragon were very pleasant, setup nicely, cleaned up well, and when there was a slight overspray observed into the living space they sent someone out as soon as I reached out to remedy it. I plan to use Paragon again and would recommend them to anyone.
Recent Reviews:
"Exceptional Service, Exceptional Comfort! I recently had the pleasure of working with Metro Insulation to upgrade the insulation in my home, and I couldn't be happier with the results. From start to finish, the team exhibited professionalism, expertise, and a commitment to excellence that truly sets them apart. First and foremost, their communication was outstanding. From the initial consultation to the completion of the project, they kept me informed every step of the way, addressing any questions or concerns I had promptly and thoroughly. When it came to the installation itself, the craftsmanship was top-notch. The crew arrived on time, worked efficiently, and paid close attention to detail, ensuring that every corner of my home was properly insulated for maximum energy efficiency and comfort. They were respectful of my property, leaving the work area clean and tidy each day. Not only did Metro Insulation enhance the energy efficiency of my home, but they also significantly improved its comfort level. I've noticed a dramatic difference in temperature consistency throughout the house, and I'm already seeing a reduction in my energy bills. Overall, I can't recommend Metro Insulation highly enough. If you're looking for a company that delivers superior results with a commitment to customer satisfaction, look no further. Thank you to the entire team for a job well done!"
Had a new garage built and Josh from Metro came over measure and gave me couple different options and recommendations of what was best. Very transparent and honest. The price was good. They did an amazing job. Very professional and knowledgeable.
Foam Slab Jacking I recently worked with Metro Insulation in Rockford for concrete foam jacking to lift and level several sunken and uneven concrete slabs, steps, and a ramp around my property—and I couldn’t be more pleased with the results. From the initial call to the final cleanup, their team was professional, punctual, and experienced. Josh walked me through the entire process, explaining how they would inject high-density polyurethane foam beneath the problem areas to raise and stabilize them. The work was done efficiently, using relatively small injection holes, and the crew was extremely respectful—especially when working inside my home and in the basement. The slabs were challenging to lift, but they got them level again. They filled some voids under the concrete as well and made sure that the concrete is solid again. They also went the extra mile to protect nearby finished surfaces throughout the job. Overall I could not be happier with my decision to use Metro Insulation for foam slab jacking.
Recent Reviews:
I have been very busy, but wanted to make sure that I posted this review. I had this company do major work in my home several weeks ago under the supervision of "Ken" and they were wonderful. The insulation work they did in both my attic and crawl space was efficient and very professional. The crew of men that performed the work I found to be considerate and courteous. The clean up was complete. I highly recommend their business!
We were very pleased with the services provided by Anthony, Dave and their crew to improve the energy efficiency of our home. They showed up on time (actually 15 minutes early). Dave reviewed the scope of the work they would be performing and gave me assurances that put my inquiring mind at ease. Their crew were well trained. They were neat and upon completion cleaned up after themselves. We couldn't be more pleased with our decision to utilize their services. Thank you Anthony and Dave. Sincerely, Ron G.
These guys are the real deal folks. A few years back our newly purchased house had a mice problem. We were given quotes for sealing and doing some insulation that were so expensive. We did the sealing and held off on insulation until this winter when our heat distribution was terrible. Enter Ken and Tyler from building energy experts. I could tell from the moment they showed up how thorough they were. Ken explained things SO well and pointed out several weak points that were contributing to our issues. Anthony the owner followed up with a quote that was not only reasonable, they had gone through the trouble of taking off rebates that they knew would be covered by our gas company. This was certainly never mentioned by their other companies much less actually applied in a quote. Day of service the guys showed up early and were ready to go. Dave, Tito, Jason and Tyler were incredibly thorough and efficient and it was a bigger job once they got into our weird old house and realized the full scope of the project. Again they explained everything so well and truly went ABOVE AND BEYOND! We feel so grateful to have found this company!
Recent Reviews:
USA Insulation came out and blew in the pink stuff up to R49. The crew arrived on time, was professional and very thorough with what they were going to do before starting, communicating during of their progress and then a 'show and tell' after the work was completed. Cleanup afterwards let my house cleaner than before they showed up and only took them around 1 1/2 - 2hrs from start to finish (for a 1425 sq ft attic). The entire process, from start to finish, exceeded my satisfaction and we will most certainly be recommending USA Insulation to our friends and family.
I previously used USA Insulation and was totally satisfied. When another area of my home needed insulating it was a no brainer to contact them. The second time around even better results, Jose and Jason did an outstanding job!
The garage is now easily heated with a basic space heater. Insects can’t move within the walls so have noticed a more insect free space. Problem is they spackled in too low of temperatures, now looks bad and ceiling pieces fall out easier They came out again to fix but they said it was spackled and they only do that once as per agreement. Maybe give me the option to wait and spackle in proper temperatures would be good because we want to paint. Better then 3 stars I give 3.5 😀
These are the questions Crystal Lake homeowners ask most about spray foam cost, R-value, and open- vs. closed-cell foam — with context for local pricing and roughly 35% typical energy savings. Compare the 6 verified Crystal Lake contractors above for exact quotes.
Not finding the right fit in Crystal Lake? Many spray foam contractors travel to nearby towns. These communities within about 60 miles all have verified contractors listed.