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Save on Energy Bills. Stay Comfortable Year-Round.

Attic, crawl space, and air sealing specialists serving the 6-county Denver metro. Our insulation services are engineered for Colorado’s freeze and thaw cycles, so your home holds its temperature through January wind and July heat. We handle Xcel Energy rebates in-house, and most homeowners save up to $2,250.

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Built for Colorado homes, backed by Xcel rebates.

We don’t just install insulation and leave. We engineer comfort and handle every rebate from start to finish, so you get the savings without the paperwork. As a home insulation company owned and staffed here in the metro, we are one of the few insulation contractors Colorado homeowners can reach directly, with no call center in between.

All services

We handle the rebate paperwork.

Most homeowners save up to $2,250. 
We submit, track, and close every claim
you don’t fill out a single form.

Local, not a franchise.

Denver-based crews who understand Colorado homes, climate, and code requirements from Broomfield to Douglas County.

No-pressure estimates.

Flat pricing, honest recommendations, and clear proposals. No gimmicks, no “today only” tactics. Ever. You get a written number before anyone touches your attic.

Built for Colorado homes, backed by Xcel rebates.

We don’t just install insulation and leave. We engineer comfort and handle every rebate from start to finish — so you get the savings without the paperwork.

(01) We handle the rebate paperwork.

Xcel Energy rebates average $2,250. We submit, track, and close every claim in-house — you don’t fill out a single form.

Denver-based crews who understand Colorado homes, climate, and code requirements from Broomfield to Douglas County.
Flat pricing, honest recommendations, and clear proposals — no gimmicks, no “today only” tactics. Ever.

Everything your home needs — under one roof.

Seven specialties. One expert crew. From attics to crawl spaces, we handle Colorado’s full insulation system. Working with a single residential insulation contractor keeps the scope, the schedule, and the rebate paperwork in one place instead of spread across three trades.

Xcel Energy Rebate Processing

We’re authorized Xcel contractors. We audit your home, submit every rebate, and handle the entire process while you pocket up to $2,250 back. Xcel insulation rebates are one of the largest savings programs open to Colorado homeowners, and we file them for you as part of the job.

Attic Insulation → $1,250

Air Sealing → $1,000

Crawl Space

+ Bonus rebates available — call to learn more

Attic insulation installation in Denver, CO home

Attic Insulation

Improve comfort and reduce heat loss with properly installed attic insulation, sized to the R-value Colorado homes actually need.

Blow-in attic insulation upgrade in Denver, CO

Blow-In Insulation

Fast, efficient insulation that fills gaps and boosts energy efficiency in walls and hard-to-reach cavities.

Air sealing service in Denver, CO home

Air Sealing

Stop drafts and energy leaks by sealing key areas throughout your home before new insulation goes in.

Radiant barrier installation in Denver, CO attic

Radiant Barrier

Reflect heat away from your home to keep temperatures stable year-round, especially through long Front Range summers.

Crawl space insulation and vapor barrier work, Denver, CO

Crawl Space Insulation

Protect your home from moisture, cold floors, and energy loss under the house where heat quietly escapes.

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Batt Insulation

Reliable insulation solution for walls, floors, and new construction, fitted to each cavity with no gaps or compression.

If you're in the metro, we’re in your neighborhood.

From Highlands Ranch to Thornton, Golden to Parker, we serve 40+ cities across six counties with the same crews, same quality, and same rebate expertise. Homeowners choose us as their Denver insulation company because the team that quotes the job is the team that shows up to do it.

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6 Counties Served

30+

Cities Covered

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30+ Cities Covered

From first call to paid rebate — four simple steps.

No surprises. No hassle. We guide you through every step and handle the paperwork so you don’t have to. Every visit is run by a professional insulation contractor who documents the work your rebate claim depends on.

All services

01

Free in-home audit

We inspect your attic, crawl space, and insulation, then walk you through exactly what your home needs.

02

Flat written quote

Clear scope, transparent pricing, and rebate savings explained upfront.

03

Clean install, one visit

Most jobs are completed in a single day. We protect your home and leave it spotless.

04

We process your rebate

We credit the full rebate directly on your invoice, so you receive the savings instantly.

Trusted by Colorado homeowners.

We’ve insulated over 2,000 homes across the Denver metro. Here’s what homeowners are saying about working with a Colorado insulation company that lives and works in the same neighborhoods it serves.

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Erik J profile picture
Erik J
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Josh and crew were great for my attic sealing and additional fiberglass blow in. He shared a quote by email before coming out to see my attic. Good communication. Crew was professional and cleaned up well. Thanks!
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Ross Kelman profile picture
Ross Kelman
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Insulation Nation was fantastic to work with! They showed up on time, were super polite, got the work done in about half the time allotted, and did a great job cleaning up afterwards. Also, despite making an error on his end when calculating the estimate, Josh stuck to the price he promised. Highly recommended!
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Wende Latham profile picture
Wende Latham
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I highly recommend Josh's company, Insulation Nation. Josh made the process easy! He is integral, timely, and very conscientious. HIs crew was also outstanding: polite, hard working and non-intrusive. His was the lowest bid but the quality was top-notch. Thank you!
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James C profile picture
James C
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We just completed our second project with Insulation Nation. 2 years ago, they insulated and air sealed our crawl space and last week they air sealed and insulated our attic. Josh was great to work with from the get go on both projects with him being very prompt and communicative. The workers did a fantastic job on both projects too and they were both very reasonably priced. I would highly recommend hiring Josh and his teams! We'll go back to them for any future projects.
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Robert Marquez profile picture
Robert Marquez
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The team was very friendly, very polite. They were willing to dive in and get the job done quickly and efficiently. Great team.
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dennis couture profile picture
dennis couture
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Josh and his team did a GREAT job. Clean, Efficient, Professional and most of all cost competitive. You won't go wrong selecting Insulation Nation for your project.
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Maria Talamantes profile picture
Maria Talamantes
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Insulation added to attic & crawl space encapsulated: great job with the work & communication; had 1 concern - it got immediately addressed! Josh very professional & knowledgeable! Thx!
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Teri Fotheringham profile picture
Teri Fotheringham
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Incredible customer service. Wonderful team here doing the install with minimal disruption to my home. Would definitely hire them again and will tell all my friends about them!
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Nicholas Rich profile picture
Nicholas Rich
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Very timely and professional company. They do a great job. I would highly recommend.
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Patty Dolan profile picture
Patty Dolan
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Dustin came out and verified the amount of insulation I currently had: R13 and current regulation state. It should be R60. He was able to send a crew out a few days later, and they were so polite, friendly, completed the job quickly and left no mess behind. I am absolutely thrilled that the back 1/3 of my home is actually warm now! Those rooms were about 15° cooler than the rest of my home. Thank you to the entire team!

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Book your cleaning service today.

Looking for a reliable insulation service? Contact our team anytime, and we’ll help you find the perfect solution. As a Denver insulation company with local crews, we can usually get your audit on the calendar within a few days.

Email Address

info@insulationnation.com

Phone Number

(720) 410-9414

Office Location

Denver, CO

Got any questions? We’ve got answers.

Faq Img - Insulation Nation Denver, CO

Blow-in insulation, also called loose-fill, is ideal for retrofitting existing homes because it fills irregular spaces and hard-to-reach areas without major structural changes. It provides strong thermal coverage, reduces air gaps, and improves overall energy efficiency. It also helps with soundproofing and installs quickly with minimal disruption. Most homes feel the difference upstairs within the first season.

A professional energy audit evaluates how your home uses and loses energy. Using tools like thermal imaging and blower door tests, we identify problem areas such as air leaks, poor insulation, or inefficient systems. This helps you focus on the highest-impact upgrades first, which is how our home insulation services save money instead of guessing. You get a clear, prioritized plan tailored to your home.

Batt insulation is best suited to open, accessible areas with standard spacing, such as wall studs, floor joists, and ceiling rafters. It is commonly used in new construction or major renovations where walls are exposed. It is a cost-effective and straightforward option when cavities are uniform and easy to reach. In both residential and commercial buildings, it is often installed in walls, attics, and floors.

Air sealing involves identifying and closing the gaps, cracks, and leaks where air escapes or enters your home. Key steps include inspecting problem areas such as attics, windows, doors, and ductwork, sealing leaks with caulk or foam, and keeping proper ventilation intact. It is recommended before adding insulation because insulation alone does not stop airflow. Sealing first ensures the insulation performs, which is the difference between a warm house and an expensive one.