Find top-rated spray foam contractors and save up to 33% on energy bills
Compare 4 verified spray foam insulation contractors serving Frederick, Maryland, backed by 1,274 customer reviews averaging 4.5★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Frederick contractors handle both open-cell and closed-cell spray foam. Homeowners here typically cut energy bills by around 33% — 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 Mixed-Humid.
Recent Reviews:
It was an absolute pleasure dealing with Winner Insulation. They are great with communication. From the initial consultation through the actual work, everything went exactly as promised. We had an issue with a subcontractor for a minor detail in the work, and Winner took care of it right away. 5 stars all around.
I live in silver spring, MD and had my home insulated air tight by winners insulation (from start to finish I’ll give the service double five star ⭐️ ⭐️) The team from Winners insulation (that did the foam spraying) were outstanding!! 👍 at their level of professionalism demonstrated, they were clean, organized, tidy, and extremely respectful of my home and time. I also have to mention, very cautious and friendly and their equipments were too notch !! They finished on record time and left the home spotless !! As if nothing happened !!(From a very critical person like me, they were excellent, you don’t get service like that anymore) I will alway recommend their services
David and his team were highly professional from start to finish. They were very thorough, had extreme attention to detail, and made sure the project was handled with care. The quality of spray foam they used is excellent. It holds internal temp very well, and doesn’t have a funky odor like other brands. They finished the project on schedule, left the house clean, and made sure inspection was passed. The service level you get with Winner Insulation is unmatched. They provide a much more tailored and personalized service than some of the bigger names in the area (DeVere Insulation). Highly recommended them, and I will certainly be a returning customer for future projects!
Recent Reviews:
I had my ducts cleaned and aerosealed and I’m so glad I did. Definitely worth it. I can already tell my system isn’t working as hard as it was before. And Gabriel was great! Really thorough, and he took lots of pictures before and after so I could see the difference. Highly recommend!
Pedro Cunha was absolutely stellar in terms of the service he provided. He was highly knowledgeable, extremely courteous and steadfastly professional. When he was done, we had 14 new lightbulbs, a new showerhead and a foam insulator for our water heater. Beyond that, he gave me other great tips and advice for saving energy. His service was so good, I will be recommending Pepco’s energy savings program on our neighborhood listserv.
Atlas Home Energy Solutions (Exceptional Service from Greg Dixon) We are extremely satisfied with the comprehensive energy efficiency upgrades provided by Atlas Home Energy Solutions. Our initial experience with Greg Dixon was exceptional; he conducted a thorough, detailed, and highly knowledgeable energy analysis of our home. Greg's proposal was transparent, detailing the necessary improvements to our insulation and the overall performance of our HVAC (heating and air conditioning) systems. His commitment to providing competitive and detailed pricing made the decision process straightforward. The installation team was equally professional. They executed the planned upgrades—including significant insulation improvements and enhancements to our HVAC unit efficiency—with impressive skill and cleanliness. The entire crew worked diligently and left the site immaculate. We have already experienced a measurable improvement in indoor comfort and energy performance throughout the house. The difference is palpable, reflecting the effectiveness of Atlas's solutions. We are grateful for their expertise and the tangible value they have added to our home. If you are looking for a reliable and professional partner for home energy improvements, look no doubt further than Atlas and Greg Dixon
Recent Reviews:
Awesome Company. They are efficient and everyone is extremely delightful to work with. I had my new home insulated with them, and it felt more like a Partnership compared to being just a contractor. If there were 6 stars, they deserve 7!
The crew arrived on time were very professional and courteous. They went above and beyond to get into some hard to reach spots to make sure I got the best job possible and they left no mess behind Will definitely recommend them to friends and family. Thank you for a great job
We got several different bids for different types of insulation products for our 1500+ square foot attic in North Bethesda, but Dennis Wilston of USI Carroll was by far the most professional and knowledgeable rep we met with. From the onset, he was thorough in his inspection, and patient with all of our questions. His quote was fair and even though we had to wait several weeks for our appointment, it was totally worth it. His crew did an amazing job airsealing and insulating the entire space. And left their work are perfectly spotless. The Montgomery County inspector even commented on how great a job Dennis' crew did. I just recommended this company to my neighbor and would not hesitate to call Dennis again. He is fantastic to work with and very old school in that he actually cares, and gives great service!
Recent Reviews:
I've been a homeowner for 21 years. In all that time, I have used dozens of contractors for renovation, HVAC, roofing, electrical, plumbing, etc. I can now add Dan Smallenbroek as only the third contractor/consultant that I trust implicitly to that list. Prior to working with Dan, I received an estimate from another highly regarded insulation company for attic encapsulation. In fact, that company's name was the only one I had heard from anyone I asked about potential insulation companies. The salesman was knowledgeable, but had a one size fits all approach. This other guy didn't try to understand what I was trying to accomplish and just kept telling me that trying anything else would not work. I called Accurate Insulation to get a second estimate to see if it jived with the competitor's. I explained to Dan that I thought I already had a good company with a reasonable quote but wanted to make sure I was getting what I really wanted. Dan promised to come out, survey my attic, and give an honest recommendation. With his help and collaboration, I picked a system that worked for finishing an attic. He spent a significant amount of time educating me about R values, the difference between blown in, fiberglass, open and closed cell insulation, and the rebates and tax credits for which I was potentially eligible. He was never pushy and not for a second did I feel that he was trying to upsell. The energy audit ended up getting me a 35% rebate which Dan facilitated on the front side. He also gave me the resources to help me apply for a federal tax credit which means the final cost for the entire insulation project will be a whopping 50% off Accurate's quoted price. This doesn't mean others will have the same result, but it's nice learning ahead of time what your all-in cost will be instead after the fact when you're not eligible anymore. The energy audit process means that everything takes more time, but it also means you'll probably make a better informed decision at a fraction of what a job actually costs. It's 91 degrees oustide right now. My HVAC unit currently sits in conditioned air space at 74 instead of 130 degrees and we're in the process of having the attic finished off as an office for my wife. I'd be remiss in not saying Accurate's energy auditor, Mike Sears, spent an extra 90 minutes post-audit going over problem areas in my house and offering his own insights for improving energy efficiency. The encapsulation reduced air flow loss by 31% which has to translate to lower heating and cooling costs going forward. If you're considering insulating your attic, I can not recommend Dan Smallenbroek and his crew with Accurate Insulation highly enough. Much obliged - Kevin & Diann
Outstanding company w/professional & courteous employees. We called on Thursday to have a spring replaced in our garage door, Andy called us back within an hour to schedule appt. & send proposal. Tuesday morning @9am Nathan & another gentleman showed up to do the work. They did a fantastic job, were done in less than an hour:) We highly recommend Accurate Insulation of Hagerstown.
Glad I have called you all b4 calling Lowes.... The guys were great and well knowledge. Will us company in future fo service or maintenance
These are the questions Frederick homeowners ask most about spray foam cost, R-value, and open- vs. closed-cell foam — with context for local pricing and roughly 33% typical energy savings. Compare the 4 verified Frederick contractors above for exact quotes.
Not finding the right fit in Frederick? Many spray foam contractors travel to nearby towns. These communities within about 60 miles all have verified contractors listed.