Spray Foam Insulation in Chicago, IL

Gasca Spray Foam Insulation was heaven sent for me and my house. Dealing with a couple companies to get some estimates to spray foam my attic was a nightmare and all of them were attempting to do too much work and charge way too much. I called Bobby and he came out to check out the attic quickly and gave me an honest assessment to the issues with the attic and the old insulation. Bobby explained the difference between each type of insulation and why spray insulation would be best for my attic. Gasca Spray Foam offered an honest and competitive price and got the job done within a couple of days of the assessment. Ever since the house has been 10x warmer in the winter and 15x cooler in the summer. Excellent company and excellent people to deal with. Would recommend for anyone looking for insulation!

Joe from Gasca Spray Foam inspected my house, gave a detailed explanation about how energy is lost in a home, answered all of my questions, then proceeded with an equally detailed explanation of what would be required to remedy the situation. Very impressive. I asked if there was a more inexpensive option. He said unfortunately, no. Upon further research, it solidified exactly what Joe had explained to me. There is a well established science to correcting home energy loss. This was clearly a company with integrity. I’m happy to say that the install was every bit as impressive as our initial meeting. The consistency of the temperature in my house, upstairs & downstairs, as well as the duration of the comfort zone has dramatically improved. My furnace must think it’s on vacation. Joe, Nick, & George are not only experts in their field as evidenced by the work they performed at my house, they are also incredibly nice people. I highly recommend this company.

Great quality service from the friendliest people! Gasca Construction did an awesome job with spray foaming my attic. My energy bill immediately and drastically reduced and the temperature in my home feels so nice. Joe Gasca did the spraying and the foam application is so smooth unlike other jobs I’ve seen posted on Facebook which would appear all lumpy. They also respected my home and made sure they cleaned up well after they finished. They were fast with scheduling and patient with my many questions. Spray foam insulation is one of the best investments I’ve ever made. And I’m so glad I had the right people with the best quality product. I can’t wait to have them come again when it’s time to replace my roof. Thank you guys for being so awesome!

I got tried of paying high utility bills a friend of mine gave me there contact so I decide to call to get estimate to my surprise the pricing was affordable and in a few days a tech was sent out to my house I had foam installation in my crawl space and ever since I have gotten better temperature in NY house and my bills have lowered . I highly recommend them

I had Koala spay foam my cathedral ceiling that lacked any insulation. Guys came on time and performed the work within guidelines. Area was prepped and sprayed well. No funny residue and was able to return home the next day. I was very pleased with the workmanship, quality and attention to detail. My AC unit no longer runs as often as it did. Now I can’t wait how this will perform in the winter, but I can already tell a drastic difference in temperature. I would highly recommend.

Koala insulation came through for us. We wanted to have or attic insulated with blow in material John Anthony came and gave a quick quote. He showed us what they were going to do and gave us a fair price. The job was scheduled right away. The team came on time and left the house as clean as it was when they got there. It has not been too cold yet this year, but we can notice a positive improvement. No drafts or cold ceiling now. 18” deep throughout the entire attic. They gave us very good complete pictures of the before and after of their work. Very satisfied and will recommend them to others.

John the owner came out and gave us a fair quote to put insulation in our attic. We decided to go forward with them and were very happy with the work. They had great communication day of, arrived when they said they would and did a great job. They even installed a hatch to access part of the attic that was previously sheet rocked over. The two installers that came were very professional and did everything we asked for. Would definitely recommend.

They are very quick and efficient. Provided with the best price in the city

The Koala team and Michael were all extremely polite, knowledgeable, and transparent about each step of the project. They were easy to communicate with. The invoicing and the work were completed quickly. We had a great experience with them and would happily work with them again.

We had a great experience with Koala Insulation of North Chicagoland. They were quick to schedule an estimate, and once we approved it, they were able to complete the work promptly. The team arrived on time, worked efficiently, and maintained a very clean job site throughout. They took the time to ask thoughtful questions to make sure they fully understood what we wanted to achieve with the project. We really appreciated how respectful and professional they were from start to finish. Not only did they clean up after themselves, but they also cleared out a significant amount of trash that had been left in our attic by previous owners—something we hadn’t expected but were so grateful for. We’re very happy with the results and would absolutely recommend Koala Insulation to anyone looking for a clean, efficient, and professional insulation service.

I requested a quote from Koala North Chicagoland. Tim was very helpful and explained some things I could try before jumping to installing insulation. Was a great change from being pressured by the company into buying.

Thermo Insulation did and amazing job on my attic. I really appreciate how they came into my home with professionalism and ready to complete a job. My attic went from next to nothing installation to almost 20 inches of installation and I also really appreciate how they installed the soffits outside of my home so that my attic can get good ventilation to keep it from building up moisture that can cause mold.

5 stars all round. I found these guys on yelp when I put out a project request for an energy audit. I heard back from these guys and liked what they had to say. Roberto came out, did the audit gave me some recommendations and together we decided on the most practical way to achieve the best results. When they came out to do the work, circumstances presented themselves a little differently, and it involved a change in plan. They were able to adapt, make it happen and still keep me very satisfied as a customer. Their work was very professional and when they were done they cleaned and it looked like they had never been there! I can highly recommend these guys.

Thermo-Insulation offered the best value of 8 different contractors I had come to look at the project. They were able to schedule me very soon after I made the decision to hire them, and Roberto, Eric, and crew got the entire attic air sealed, baffled, and insulated in one day with minimal disruption to our day. They marked all electrical work in case future work is needed and posted rulers around the attic so that we can see if any part of the insulation begins to compact. Overall, I am very happy with my experience and this project has unquestionably been one of the most impactful upgrades to my home. So thank you to the Thermo-Insulation crew.

OTS Chicago Insulation provided an outstanding service that immediately resolved the issue of our room temperature imbalance. The team was punctual, professional and finished the work in one day. We really had a great experience

I live in Buffalo Grove, IL, and recently hired OTS Chicago Insulation to insulate my crawl space and I’m extremely happy with the results! After doing some research and calling a few companies, I chose OTS because of their professional approach and detailed consultation. Ofer, the technician who came out, was knowledgeable and explained the benefits of crawl space insulation, including how it would improve energy efficiency and reduce moisture issues in my home. It’s been a few months since the installation, and I’ve noticed a big difference. The floors on the first level are no longer cold, the air quality has improved, and our heating system isn’t working as hard this means real energy savings! If you're looking for a reliable insulation company in Buffalo Grove to handle your crawl space insulation project, I highly recommend OTS Chicago Insulation. Great customer service, excellent workmanship, and noticeable results.

We recently contacted OTS Chicago Insulation to evaluate our office space in Arlington Heights, which was always cold, especially during the winter months. Their team was professional, knowledgeable, and provided a thorough estimate along with a clear explanation of the insulation options. The installation process was smooth, and the difference was noticeable right away. Our office is now much more comfortable! We highly recommend OTS Chicago Insulation for anyone looking for quality work and outstanding service. Thank you from the team at Chicago Garage Door.

I contacted Chicago Green Insulation to see if anything could be done to prevent my pipes from freezing again this winter. Tom called me back and was over to inspect my house by the next day. He did a thorough inspection of the areas where I’ve had freezing and went down into the crawl space to see how well it was insulated. It turned out that my crawl space already was insulated but Tom alerted me to several other things I could do to help potentially avoid having my pipes freeze. A couple of his suggestions were ones I could do on my own while others will require professionals to do the work. Tom very nicely offered to help get a quote for one of the jobs with someone in the industry that he has worked with for many years. Although I wasn’t able to hire Tom to provide any insulation work for me, I really appreciate how much he has gone above and beyond, even long after he knew I wasn’t going to need his services.

Called Tom to get some perspective on a moisture issue I'm having in my attic. He was very honest and shared that the issue is not something he needs to handle and gave me some technical knowledge and small tips to solve the problem. He generously gave of his time to help me solve the problem for much less money! Very friendly and approachable. Thank you, Tom!

Tom, the owner, came out to visit our home on short notice because we were experiencing vastly different temperatures on the 2nd floor of our 1890s home. He took a look at the situation, gauged temperatures, structure, and gave practical, honest alternative solutions to insulation. Since adding insulation would require certain renovations that we weren’t looking to do, Tom suggested dehumidification and hvac modification, and gave the names of reliable professionals from his contacts. He did not try to make a gratuitous sale. He maintained integrity and focused on problem-solving. So if you prefer to work with smart, innovative, and honest companies that truly want to fix the problem, give Chicago Green a call.

Prior to contacting Koala, a couple other companies were contacted concerning what needed to be done. I knew exactly what I wanted from the service for what needed to be foamed. Let's just say, while speaking with Adam from Koala, he agreed with what was needed, gave a reasonable price, therefore I booked the appointment. Mark came out 7am ready. Thank you Mark. The fantastic crew came by 7:30am. They completed the task. Looked superb, outstanding. Even though Koala has been in business less years than the others I contacted, the main contacts were more understandable, got straight to how they could help and the price was more reasonable than the others. I sincerely recommend Koala Installations.

Very happy with the work Adam and his team have done with my attic. I had 4 other companies bid the job and ultimately decided to choose Koala for the job. Adam answered all the questions I had and was easy to work with. I decided to increase my attic insulation to R-60 due to horrible existing insulation, and air seal my attic. Kyle and his team showed up on time, communicated clearly, left my house as clean as before they came and even provided me with pictures of the whole job start to finish which was very nice. Good people, good price, and good results.

I researched several companies and their estimates for Crawl Space Encapsulation at my home before I decided on Koala. The communication from the owner was very timely and his onsite supervisor Mark and his crew were terrific. They were professional, friendly, efficient and very informative. My crawl space turned out better than I anticipated. I highly recommend Koala of SW Chicago!

Box sills were insulated in October. My home had a mouse problem for the past couple of years and paid a Pest Service (all they did was put bait boxes outside). Found information to insulate your box sills where the small leaks are allowing cold air and pests to come in. Wish I knew about this solution before. Now, absolutely no evidence of mice, spiders, webs, small bugs..... All perfectly and expertly sealed. Basement is warmer and less damp and wood floors above are warmer. ARC Company was excellent. They were easy to talk to and the crew was helpful and knowledgeable. Everything was sealed off and debris expertly removed . Old insulation had some mold AND dead mice.... UGH!!!! Everything was cleaned up and installed perfectly. Crew was professional, courteous and outstanding.... Wasted too much money on Pest Service and should have insulated with ARC . Highly recommend services and crew. Money well spent for great services and results.

Great communication from start to finish on my project!! David (initial consultation and sales) was very easy to work with, very patient, very knowledgeable. The crew (Victor and Pedro) were professional and friendly. I appreciated how hard they worked, their attention to detail, and how clean they kept everything. The insulation looks so good — what a difference!! We will definitely hire ARC again!!

I had a great experience with Arc Insulation. David came out to give the initial quote and was incredibly patient as I gathered and compared other estimates. He walked through each one with me in detail and was honest about what was better or not in those quotes so I could feel confident I was getting the best value. His knowledge and transparency made the decision easy. Mauricio and Antonio completed the installation and were fantastic to work with. They explained the work step-by-step, thoroughly covered and protected the areas being insulated, took detailed photos throughout the process, and cleaned up completely when finished. They were professional, respectful, and patient in answering all my questions. Overall, I really enjoyed working with the Arc Insulation team and will absolutely reach out to them first for any future insulation needs. Highly recommend.

I can’t speak highly enough of South Chicago Insulation ( Gasca Brothers) the entire experience from the moment Joe Gasca walked in was fantastic !! Joe was friendly and knowledgeable, he took the time to explain and actually point out a few things we weren’t aware of, that was needed. (the other company failed to tell us) Joe also addressed all my questions that I was concerned with- I felt very confident in my decision having them continue with the work. We will be using South Chicago Insulation again ( roof and spray foam in another location ) I would HIGHLY recommend this company ! Thank you South Chicago Insulation our home will be nice and warm this the winter and months in the future ( definitely will help on gas bill ) Thank you again on a job well done 👍🏼 Erik and Sharon Peterson

The crew did a fantastic job. Work included cleaning out a mess of old insulation and spray foaming the attic roof. Lots of tight places that they took care of. Attic temp feels much more stable now. Looking forward to a cozy winter thanks to the new spray foam insulation.

South Chicago Insulation did an absolutely amazing job with our renovation. They are incredibly knowledgeable, thorough, and expeditious... but their attention to detail is what really takes the cake. I was sure that we were going to have an issue with freezing pipes as we were running the plumbing for two overhead rainshower heads for our upstairs shower through the attic crawlspace. Problem for others, maybe... but not South Chicago Insulation! They ran a vapor barrier over top of the ceiling joists above the pipes and secured it tightly. Then they were able to insulate with spray foam behind the piping using the vapor barrier as a backer, and left the underside exposed. Over top of the vapor barrier on the attic side they replaced the blown in insulation to code level and bingo... airtight seal with pipes as cozy as a baby sheep snuggled up in a huddle. Trust me folks... you can sleep easy when South Chicago Insulation is taking care of your home or business... it's so much easier to rest when you don't feel like your paying to heat and cool the whole nieghborhood. They got every nook and cranny covered. Absolutely amazing job. Thank you guys for the great work.

Had my attic insulated, some air sealing done, and an HVAC tune-up by the Ruiz brothers at Assured, and everything turned out awesome. The team was super friendly, showed up on time, and explained what they were doing in a way that really made sense. Norman installed a new bath fan as well, and he did a great job with it. The old one wouldn't even turn on, and after the install, he made sure everything was running perfectly before he left. The house feels way more comfortable now, and the HVAC is running smoother than it has in years. They were quick, clean, and really easy to work with. Definitely recommend them if you need insulation or HVAC work. Great crew and solid results!

Assured installed insulation in my attic. From the salesman to the installers, we were very happy their customer service. I received a text and a phone call before they arrived. Kept us up to date on arrival time. Walked us through the insulation process, etc. The lead installer was very nice, engaging and informative. They covered the entry to the bedroom with plastic before starting work. Very clean when they were finished. Great job. Thank you for excellent service.

Assured is absolutely the way to go. I had the pleasure of working with two extremely professional and sharp-looking gentlemen — Jelani (the assessor) and Hunter (the sales manager). From the moment they arrived, their professionalism stood out. They were respectful, well-spoken, and carried themselves in a way that immediately built trust. Beyond that, they were genuinely kind, personable, and even brought some humor to the appointment, which made the entire experience comfortable and enjoyable. What I appreciated most was their honesty — they only quoted me for what I actually needed, not what they could try to upsell. Hunter demonstrated a tremendous amount of knowledge and communicated everything in a clear, confident, and professional way. He knows how to sell without ever making you feel pressured or uncomfortable. Jelani was equally impressive, extremely respectful of my home, and handled the ladder and equipment with real care to ensure nothing was scratched or damaged. Their pricing is more than fair, and I truly feel Assured has my best interest in mind. I’m looking forward to having them complete the work, and for anyone shopping around, I highly recommend Assured Energy Solutions. Outstanding service from two top-tier professionals.

From the initial quote to the install, Green Attic, was accommodating and fast. Frank came out on May 20 and squeezed up into the attic space. Found black mold on the rafters from poor ventilation due to a broken fan. I appreciated his honesty and recommendations. Ten days later, Edgar and his crew (Omar and Rigoberto) arrived. They did a great job remediating the black mold in the attic, adding thick insulation, baffles and replacing the attic fan with a solar powered fan for continuous attic air exchange. When they finished, Edgar showed me the final air flow and his crew were very respectful of the property, cleaning and tidying up the work area. I would recommend Green Attic to anyone needing mold remidiation and insulation.

We had four Green Attic workers involved over our three day project. The first day Alvaro & Jeff worked diligently at completing the mold remediation and insulation installation. They were polite, hard working and respectful of our home. The second day, Mario completed the initial mudding & sanding of the installation holes. Then on the third day, Mario and Sammy completed the final sanding and the opening of the soffit vents. These two men were also hard working and respectful of our property. The entire job went smoothly and comfortably.

Our house is drastically more comfortable after an air sealing and insulation project. They were also able to accommodate our request for a positive pressure blower door test (rather than negative), though it take a bit of back and forth to get that sorted out. They did very good work and I will definitely be reaching out again if we have any future insulation projects.

Absolutely outstanding work from beginning to end! The project manager, Javier, did a fantastic job. The project involved the removal of old insulation from the attic and walls of one room. From the initial planning, execution of the project, to the final cleanup, everything was handled professionally. I highly recommend this company for their excellent service.

Echo Tec is responsive, professional and efficient. They did a wonderful job with my home insulation.

It was a pleasure to work with Brian, Andrew, and their family business. I recently had Eco Tec at my home doing wall cavity insulation. My house is over 100 years old and largely stucco exterior, both of which present more challenges, but they were able to do get the job done mostly from the outside. I only had a short turn around time for completion of the work, repair, and clean up. Brian went above and beyond to get my final clean up done by my required deadline - thank you Andrew and Ryan. I want to acknowledge Ruben for his efforts and thorough work getting my drywall repaired, painted and back to normal. Brian is very responsive and has such a friendly, calm and competent attitude. I thought my initial quote was very reasonable considering the scope of the work. My final invoice and payment due amount was really good value. I would definitely recommend Eco Tec Insulation.

I've used Reynoso Insulation for several insulation projects, and they’ve consistently delivered excellent results. Their team is reliable, always on time, and easy to work with. One of the things I really appreciate is their attention to detail. Any time I asked them to adjust or level out insulation, they handled it without hesitation. Their work made drywall installation smooth, with everything fitting perfectly on the studs. I highly recommend them for anyone looking for quality insulation work done right the first time.

Jose and his wife and very customer friendly. Jose is knowledgeable about building construction and climate control. Insulation workers and professional, kind and clean up after themselves. Highly recommend Reynoso . Thanks again! Guillermo P

Reynoso Insulation did a great job with our second floor. For years, extreme temperatures outside, could be felt inside. This prevented us from even going upstairs in the middle of the Summer because our AC just couldn’t keep up due to the heat. And in the Winters, the heater would work overtime. We finally had enough and searched around for someone to insulate the whole upstairs. Reynoso insulation suggested a contractor to us to cut the drywall. We ended up hiring him. He was confused with the start of the project and showed up a bit late. And to finish the project, wouldn’t show up til 10 some days. But he ended up doing good work in the end. When it comes to the actual company, Reynoso Insulation came on time (8 am) for the days they worked. They worked quickly and efficiently as well as cleaned up nicely. Now, with this Summer’s heatwave, our AC is finally working like it should upstairs. Letting us know that the insulation was a job well done.

We recently hired Illinois Insulators in Downers Grove, Illinois, for insulation and mold remediation, and we couldn’t be more impressed with the results. From start to finish, their team led by John was professional, thorough, and highly knowledgeable. They took the time to explain the entire process, answered all our questions and addressed all our concerns. The insulation work was completed efficiently and with great attention to detail. We noticed an improvement in comfort almost immediately. Their mold remediation services were equally outstanding—meticulous, safe, and effective. They addressed the issue at its source and left the space spotless and healthy. What stood out most was the team’s courtesy and respect for our home. They arrived on time, worked cleanly, and treated the job with true care and expertise, and afterwards left our home as spotless as it was before they started. It’s rare to find a company that combines quality workmanship with outstanding customer service, but Illinois Insulators delivered on all fronts. We highly recommend them to anyone needing insulation or mold remediation. Exceptional work and a great experience from beginning to end!

Our experience with Illinois Insulators was all positive. They came on time, did their job efficiently, cleaned up perfectly and both John and Liam were very nice and polite. Their prices were great and if we ever needed their services again we would definitely call them. We would like to give an extra shout out to Liam for going above and beyond to make sure this picky woman was pleased with the job he did! Highly recommend!

Benny and John did a fantastic job fixing the insulation in our attic and sealing it from the outside elements. Their team was communicative and timely with the insulation. I felt a massive difference in the temperature on the second story within 2 hours of them completing the job and look forward to lower future energy bills.

I am extremely happy about the whole process from start to finish with Daniel, and Smart Insulation. Daniel was very thorough on his inspection and offered a few different strategies for insulation in my attic. Gave me a fast estimate and was even willing to do the job on a Saturday! With these below zero temps this week, I already notice the difference. I definitely recommend this company. Thank you! -Lauren

Excellent professional workmanship. They went beyond what was quoted and did some additional repair work that was needed to ensure that the crawl space would be sealed perfectly for the next winter. The team worked hard and diligently getting the work done efficiently. They cleaned up when finished. Five stars.

This company is AMAZING. They came out and sprayed foam insulation in my attic, and they did it quickly and efficiently. The crew was very friendly, and they didn’t leave a mess when they were done!

Have used Chicagoland Sprayfoam multiple times for various projects. They’re honest, respectful of clients needs and thorough with their work. Would definitely use again. They’re extremely busy but worth the wait IMO.

Called a few times and left a message but no answer. Drove to the address from Northbrook because it says they close at 6pm and I arrive to a residence. No business advertisement and no answer at the door.

Contacted them and they never responded.