Insulation service costs depend on your project and location. Check with a local pro for your specific job.
Insulation installation costs in Denver average $0.90 per square foot.
Spray foam insulation, popular in Denver, averages $3.50 per square foot.
Insulation upgrades in Denver can deliver up to 117% return on investment (ROI).
With Denver’s high elevation, dry climate, and dramatic temperature swings, proper insulation is essential for year-round comfort. In Denver, insulation installation costs an average of $1,424, with most homeowners paying between $867 and $1,980, depending on the home's size and the selected material.
From frigid winter cold fronts to intense summer sun, local weather patterns make attic and wall insulation especially important for energy efficiency. Factors like R-value requirements, existing insulation removal, and home age will all influence your final price, so here’s what to expect before starting your project.
In Denver, CO, understanding insulation installation costs starts with knowing what insulation is and how it functions within your home’s building envelope. From material type and square footage to disposal needs like dumpster size and rental duration, several Denver-specific factors determine where your project budget goes.
Since you can pay anywhere from $0.90 to $4.75 per square foot on average, you can expect the size of the area you need to be insulated to be another significant factor in your total insulation cost. Your total price will be directly correlated to the cost of the material you choose and the size of the area you need to be insulated.
The table below includes some average pricing based on the room size you’re looking to insulate.
| Square Footage | Average Cost |
|---|---|
| 100 | $90–$475 |
| 500 | $450–$2,375 |
| 1,000 | $900–$4,750 |
| 2,000 | $1,800–$9,500 |
Your material choice plays a major role in the price of your installation. You can pay anywhere from $0.90 to $4.75 per square foot for insulation on average, with fiberglass insulation tending to cost toward the lower end of that range and wood fiber insulation coming in at the upper end. The table below includes some average pricing for different insulation materials.
| Material | Cost Per Sq. Ft. |
|---|---|
| Cellulose | $1–$2.75 |
| Fiberglass | $0.90–$2.25 |
| Polystyrene | $1.25–$3.50 |
| Mineral Wool | $1.75–$4.50 |
| Wood fiber | $3.25–$4.75 |
The type of insulation you choose—whether you’re comparing batt and roll, blown-in, foam board, radiant barrier, or reviewing spray foam insulation cost—will significantly influence your total project price, performance, and long-term energy savings in Denver’s high-altitude climate.
| Type of Insulation | Cost Per Sq. Ft. | Pros | Cons |
|---|---|---|---|
| Spray foam | $2.50–$4.75 | Highest R-value per inch; excellent air sealing; ideal for Denver’s cold winters and hot summers | Higher upfront cost; professional installation required |
| Blown-in & loose-fill | $1–$2.75 | Great for attics; fills gaps well; cost-effective for retrofits | Can settle over time; may require top-ups |
| Batt & roll | $0.90–$2.25 | Budget-friendly; easy to install; widely available | Less effective for irregular spaces; gaps reduce efficiency |
| Foam board | $1.25–$3.50 | High insulating value; moisture resistant; good for basements and exterior walls | Requires precise installation; higher material cost than batts |
| Radiant barrier | $0.75–$2 | Reflects heat; helpful in sunny, high-altitude Denver summers | Doesn’t add R-value; often used with other insulation types |
Where you install the insulation can affect the price, with garages having the lowest cost per square foot and attics having the highest. Here’s a breakdown of how much it costs to insulate each location in your home.
| Location | Average Installation Cost |
|---|---|
| Attic | $1,400–$3,250 |
| Basement | $1,400–$3,250 |
| Garage | $750–$2,250 |
| Roof | $2,400–$6,800 |
| Wall | $1,200–$3,600 |
| Ceiling | $900–$2,800 |
Site prep can add to the cost of your project, but just how much you’ll spend depends greatly on how much work it takes to prepare the site. You could spend as little as nothing or as much as $1,000 for the cost to repair drywall after you install your insulation.
Spray foam, in particular, requires extra prep work for proper installation, whereas batt insulation generally goes in with little preparation. Site prep consists of the following:
Cover all valuables, windows, doors, and important surfaces for spray foam installations.
Make sure the electrical wiring is properly installed, and your walls are framed and fully enclosed before installing spray foam to avoid overspray.
Repair any structures in your home, including walls, attics, basements, and crawl spaces.
Remove moldy insulation, conduct a mold test, and hire a mold removal company.
Plan for cleanup costs for removing old insulation and debris.
Inspect your existing insulation beforehand to identify damage or problem areas. Learn how to inspect your insulation before starting prep work.
Installing insulation in new construction homes is less expensive than adding it to existing homes, costing $0.75 less per square foot. This is because the walls and ceilings are easier to access and install insulation, and you don’t have existing insulation to worry about.
However, many new construction homes use more insulating materials for long-term performance, which tends to be more costly.
A home insulation upgrade cost falls between $1.25 and $2.75 per square foot on average. This doesn’t include disposal fees. Junk removal services add approximately $75 to $500 to your project, depending on the size of the job.
Proper planning helps homeowners budget accurately for professional insulation installation in Denver, CO. When comparing quotes for insulation installation in Denver, it’s important to understand local fees, regulations, and climate factors that influence total costs.
Most installers charge between $55 and $95 per hour to install insulation in Denver, so the more complex the project, the more it’ll cost. A few complexities that may increase the cost of labor include:
Your installer needs to install insulation in hard-to-reach areas.
You have multiple installation sites in need of insulation.
The installer needs to remove old insulation.
Proper planning helps homeowners budget accurately for professional insulation installation in Denver, CO. When comparing quotes, it’s important to understand local fees, regulations, and climate factors that influence total costs.
Denver’s combined sales tax rate is approximately 8.8%, which may apply to insulation materials depending on contractor billing. For a $3,000 project, that could add $260 in material-related taxes.
Most insulation replacements don’t require permits, but projects involving structural changes or finished basements may. Permit fees in Denver range from $50 to $200, depending on scope and valuation.
Denver’s freeze-thaw cycles and high elevation demand higher R-values, which refer to how well insulation resists heat flow. The higher the number, the better it insulates. Higher R-values can increase material costs by $0.25 to $0.75 per square foot for code-compliant upgrades suited to Colorado’s climate, but they improve comfort and lower long-term energy bills.
Correctly installing insulation can be difficult. Health and safety risks are involved; therefore, we highly recommend contacting a pro to ensure the job is completed safely and correctly.
Some Denver homeowners may need additional specialists to ensure insulation upgrades are safe, efficient, and code-compliant. Bringing in the right pros can prevent costly issues later.
A certified energy auditor identifies air leaks and insulation gaps before upgrades begin. In Denver, a home energy audit costs $375 to $575, helping homeowners prioritize improvements and maximize efficiency gains.
An HVAC contractor ensures your heating and cooling systems are properly sized and balanced after insulation upgrades. In Denver, service calls cost $100 to $200, with additional adjustments increasing total costs.
An electric inspector checks exposed wiring in attics or walls before insulation installation. In Denver, electrical inspections cost $140 to $200, helping reduce fire risks and ensure local code compliance.
In Denver’s competitive housing market, proper insulation does more than lower utility bills—it can increase resale value and buyer appeal. Attic insulation upgrades consistently rank among the highest home-improvement returns, with an estimated 117% return on investment (ROI), meaning homeowners may recoup more than they spend. In a city known for cold winters and strong summer sun, insulation can also reduce heating and cooling costs by up to 15%, making energy efficiency and year-round comfort major selling points for prospective buyers.
Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We survey real Angi customers about their project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We pair this data with research from reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects.
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Home Performance Solutions gave me a bid for insulating an attached garage. Mike was incredibly knowledgeable and detailed. The bid and scope of work stood out from the rest. I was looking for a basic wall and ceiling bat insulation between the studs. He ended up recommending spray foam as...
Had a garage & shed insulated. Service was very professional & completed on time. The price for the service was outstanding, and I would recommend Shad & his crew to anyone. 5 out of 5 stars!
Irons in the Fire Spray FoamMy experience throughout was positive. Josh, who estimated and oversaw the project, was accessible for any questions and even reached out himself. He was an excellent, accessible, and knowledgeable communicator. He gave a written estimate, quite reasonable one (the best that I received),...
Insulation NationJason and his crew were very professional, clean, and polite. They were very patient with me and all my questions. They even went above and beyond when I had a misunderstanding about how things work. I highly recommend Advanced Insulation Services! Integrity, Character, Compassion, and...
Advanced Insulation Solutionsprompt on time service, great people to work with, I highly recommend them for insulation work
Thermal Home InsulationEnergy Armor Wow, these guys were great! Scheduled quickly, showed up on time and did a marvelous job with blown in insulation! They were pleasant, professional, cleaned up afterwards and the newly insulated attic was immediately apparent in the house! The house feels â buttoned upâ now,...
Energy Armor, LLCI was very pleased with the professionalism REenergize CO displayed. I would recommend this firm to anyone needing a quality insulation.
REenergizeCO, Inc.As a senior I felt very confused about the cost and selection of new flooring â Jack educated me on product selection, what the process of floor insulation involved. The skill at which Jack and his helper Logan installed my vinyl plank flooring was easily noted when I saw the finished...
From the on-site review and estimate process to the completion of the project, this has been one of the best contractor experiences we have had. Ryan (owner) personally came to estimate our project (attic and crawl-space insulation), was patient in addressing our questions and, within 24...
NetZero InsulationInsulation Pros of Colorado were outstanding. They were timely, did a great job, respected us and our home, and answered all our questions. Best yet they nearly cut our utility bill in half for Sept compared to that for July and August ... and this Sept hit all time high temps.
Insulation Pros of ColoradoFrom average costs to expert advice, get all the answers you need to get your job done.
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