Elijah RomeroKeeping your home comfortable year-round in Colorado requires a solid thermal barrier. If you notice drafty rooms or uneven temperatures, your property is likely losing energy, which is driving up your bills.
Luckily, finding the best insulation services in Denver can quickly improve your efficiency and comfort. Upgrading your attic or walls is a smart move for both homeowners and property managers who need to meet energy standards.
I’ve evaluated top-rated local contractors to help you choose the right materials and the best partner for your specific structural needs, so read on!
How much does insulation cost in Denver?
Professional insulation services in the area typically range from $1.00 to $7.00 per square foot, with most homeowners spending between $1,500 and $6,000 for standard attic installations.
| Insulation Type | Average Cost |
| Attic Insulation (Blown-in/Batt) | $1.00 – $4.00 per square foot |
| Spray Foam (Open Cell) | $1.50 – $2.50 per board foot |
| Wall Insulation (Dense-pack) | $1.60 – $4.20 per square foot |
| Crawl Space/Floor | $1.00 – $4.50 per square foot |
1. Denver, LLC
Website: https://denverinsulation.com/
Areas Served: Denver and nearby areas
Contact: (720) 355-2936 | [email protected]
Schedule:
- Monday – Friday: 8:00 AM – 5:00 PM
- Saturday – Sunday: By Appointment
Finding a contractor for minor repairs can be surprisingly difficult because many large companies tend to pass on smaller jobs. This is why Denver is such a great resource for residents.
With over 20 years of experience in the metropolitan area, they truly know how to get the job done right. They specifically take on the quick fixes that other outfits turn down.
They also use a specialized spray foam that serves double duty, insulating your home and creating a solid moisture barrier. Busy homeowners will also love how easy it is to get started.
One downside is their limited weekend availability, as Saturday and Sunday jobs are strictly by appointment only. Planning ahead is necessary if you need work completed outside of their standard Monday through Friday operating hours.
Customer Reviews:
I’m thoroughly impressed
My entire experience with Denver Insulation LLC was great. From initial conversations with Juan to the final product. His team arrived and did an impeccable job at the insulation, the protection of other parts of the house, and the clean up. I’m thoroughly impressed and would recommend them to anyone.
- Drizzy Designs (DrizzyDesigns) | Google Review
Wow, what a terrific experience
Wow, what a terrific experience from beginning to end. My Estimator, Juan, was knowledgeable and professional. He educated me on the specific insulations for the different needs of my building. The teams that actually installed the two types of insulation were timely and friendly. They took care of everything promised, and more. I look forward to a much warmer winter.
- Lisa Gelroth | Google Review
2. Level Up Insulation LLC
Website: https://levelupinsulationco.com/
Address: 6850 Broadway Unit E1
Contact: (720) 208-4065 | [email protected]
Schedule: Monday – Saturday: 8:00 AM – 5:00 PM
Upgrading an older home to meet modern energy standards can be challenging, especially given our local climate fluctuations. That’s why Level Up Insulation LLC is so helpful.
For starters, they assess the specific R-value needs for extreme temperature swings rather than just applying a standard thermal blanket.
Since they’re a family-owned operation, the owners stay directly involved in every project to ensure high-quality control. They also specialize in retrofitting older properties to improve air quality and lower utility bills.
Recently, I helped a friend renovate their under-insulated attic, and speaking with their bilingual team made the entire consultation process incredibly smooth.
The only major drawback is the temporary displacement required during the spray foam application, so you’l have to vacate the property while the product cures.
Customer Reviews
John and the crew were awesome to work with
Had Level Up install spray foam insulation in our garage conversion here in Denver. The difference is night and day. What used to be an unusable space in the winter is now a fully functional home office. The spray foam insulation created a perfect seal — no drafts at all. John and the crew were awesome to work with. They protected all the floors and walls and left everything spotless.
- ANGELIS CABRERA | Google Review
The quality is consistent every single time
I’m a property manager and I’ve worked with a lot of insulation companies near me in Denver over the years. Level Up is now my only call. They handle everything from attic blow-ins to crawl space encapsulation, and the quality is consistent every single time. Their crew is respectful of tenants, they communicate schedule updates in real time, and they always clean up after themselves. Best insulation companies near me in Denver for commercial and rental property work, hands down.
- Lars Svensson | Google Review
3. Mucilli Brothers
Website: http://www.mucillibrothersinsulation.com/
Address: 230 S Santa Fe Dr
Contact: (720) 204-8414 | [email protected]
Schedule: Monday – Sunday: 7:00 AM – 5:00 PM
Tackling large commercial properties or small residential spaces requires a contractor who can handle different structural demands. This is where Mucilli Brothers comes in.
This locally owned business uses high-efficiency spray foam technology to create tight seals and moisture barriers. They even offer comprehensive coverage for every part of a building across many surrounding cities.
One great feature is their no-cost project planning. This helps property managers budget accurately before committing to an installation, and it is very helpful when you are also coordinating an HVAC upgrade.
They also offer versatile materials, such as fiberglass batts and blown-in cellulose, to reach hard-to-reach areas.
A notable downside is their strict requirement for professional removal of existing dirty or damaged materials, which adds an extra remediation step before new products can be installed.
Customer Reviews
Very professional, thorough and clean
We have used Mucilli Brothers twice now and had great experiences both times. George and his crews are very professional, thorough and clean. Our 2nd house has an access to the attic in our master closet and the crew took the time to wrap the opening with plastic in a way that nothing in the closet got dirty.
The Insulation portion was done correct with the cleaning and replacing the aid dams for the soffits, sealing penetrations and damming around electrical boxes for ceiling fans, etc.
I would recommend Mucilli Brothers to everyone.
- The Moffitt`s | Google Review
Super impressed by Mucilli Brothers insulation
Super impressed by Mucilli Brothers insulation. I was referred to them by a coworker who also had a great experience. They gave a quick estimate based just on pictures/floorplan of our house, scheduled us quickly, were responsive and proactive with communication, and did a great job on the actual work. Thank you George and team!!!
- Shelby Rizzuto | Google Review
4. Koala Insulation of Denver
Website: https://koalainsulation.com/denver
Address: 6185 E 56th Ave, Commerce City
Contact: (720) 613-5795
Schedule: Monday – Friday: 8:00 AM – 5:00 PM
Finding a contractor that offers neighborhood accessibility and corporate backing can provide significant peace of mind. This is exactly what you get with Koala Insulation of Denver.
They’re a locally owned branch of a trusted national network and offer a rare, limited lifetime warranty on their installations. Plus, they’re known for leaving clients’ properties in better condition than they found them, thanks to their thorough cleanup.
A colleague of mine used their complimentary efficiency review, and the assessment showed exactly where the home was losing money on utility bills. Their crews are so well-trained that they can often finish a job in just a few hours.
One thing to note is that you cannot get a firm price over the phone. They require an in-person visit to provide you with an accurate, custom quote for your specific space.
Customer Reviews
Korey and her team did a great job!
Korey and her team did a great job! They were prompt, professional, and very reasonably priced. I was referred to Korey from another happy customer and would definitely recommend Koala of Denver to anyone needing insulation work done.
- Patrick McLaughlin | Google Review
Crew was efficient and fast
A seamless experience working with Koala. Kayla was professional and explained the whole process to me. She answered all my questions and walked me through the forms. On the work day, the insulation install crew was efficient and fast and they left the area clean. I am already seeing an improvement in the home temperature!
- JD Frey | Google Review
5. Denver Spray Foam Insulation
Website: https://www.insulationsprayfoamdenver.com/
Address: 255 S Cherokee St Apt 2234
Contact: (303) 529-4249
Schedule: Monday – Friday: 8:00 AM – 6:00 PM
Getting the best thermal resistance for your home usually requires specialized materials and a lot of precision. That’s why Denver Spray Foam Insulation focuses so much on training their technicians.
With this, they truly understand the specific density needed to handle our challenging local climate. By using both high- and low-density foams, they ensure your insulation stays strong and doesn’t sag over time.
Applying these advanced barriers is a great subsequent step after hiring an air duct cleaning service to fully optimize your indoor air quality.
Besides regular houses, they also work on unique, non-traditional structures like trailers and shipping containers.
Keep in mind that high-density closed-cell systems involve a higher upfront investment compared to traditional batts. This premium approach may initially stretch tighter budgets, despite the long-term energy savings.
Customer Reviews
Great service!
I had my garage insulated with their spray foam and it’s feels so cool now before it was scorching. I can sit in my garage and enjoy it now. I’m glad that my friend recommended them. They also were very professional and didn’t take as long as I thought they would to finish. I would definitely recommend to anyone who needs to have installation done. 10/10
- Janesha B. | Google Review
Five+star experience
I don’t usually leave reviews, but I had such a great experience with Denver Spray Foam. I had home insulation work done, it’s the best decision I have made in a long time. My house feels so much cooler, the savings I will see are well worth the costs. I used their free quote tool on the web, was so easy to get the ball rolling. The workers were so professional and did great work. Five+star experience. Very pleased . I will be recommending this to friends and family.
- Tanaya Heyward | Google Review
