How much does it cost to insulate or reinsulate an attic?

• <div>On average, insulating an attic costs about $2,500, with a typical range of $1,500 to $3,500. The final price often depends on the attic's size, with costs generally falling between $1 to $3 per square foot. For example, insulating a 1,800-square-foot attic would likely cost between $1,800 and $5,400.If the project involves removing old insulation, this can add an average of $900 to the total cost, bringing a full removal and reinsulation project to around $3,000.Several factors influence the overall cost:<ul><li>Insulation Type: Prices per square foot vary significantly by material.</li><li>Reflective: $0.50–$1.50</li><li>Blown-in: $1–$4</li><li>Batt: $2–$4</li><li>Loose-fill: $2–$5</li><li>Spray foam: $2–$5</li><li>Structural insulated panels (SIPs): $4–$7</li><li>Project Complexity: Factors like sealing air leaks, poor attic accessibility, and required inspections can add to the cost.</li><li>Removal Issues: The discovery of mold, asbestos, or pests during the removal of old insulation can substantially increase the price.</li></ul></div>

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Last update on May 19, 2026

Reviewed in May 2026
They installed a well pump in January. Took them about 2 hours. Well pump cost around $400 they demanded payment of $8000 due to working in Cold weather. When I questioned it that got extremely rude and bullied me into paying. I should have gotten a quote upfront and didn&#39;t. I sure would...
Klimek Bros Well Drilling
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Reviewed in February 2024
We are very thankful we chose Mad City. From the very beginning when we met with their team, they were kind, courteous and helpful. But above all the line of communication was always open and punctual, which is important when dealing with costly home projects. The team that installed the...
Mad City Windows & Baths
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Reviewed in September 2022
Trevor did an outstanding job installing a "somewhat" challenging shower door. I love my new shower! He was attentive to detail and helpful with his recommendations. I would hire him to do more work in the future.
Kratzke Holdings LLC
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Reviewed in June 2021
Josh, Kenny, Johnny and Nick were excellent to work with the drain tile installed in my basement, very courteous and did an excellent job of cleaning up too. Thanks for the top notch work!
Groundworks
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Reviewed in September 2020
We had a bidet installed. The project was somewhat complicated. The techs did an excellent job. Cost was reasonable. We have used this company several times. Highly recommend.
Current Flow Plumbing, Inc.
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Reviewed in July 2018
Kurt coordinated the Generac distributor, the electrician, installation of the concrete pad and hooked the generator up to our LP gas tank. Everything went smoothly and as planned. The site was cleaned up perfectly after the work was completed. Kurt is our first and only call for any plumbing...
Koegel Plumbing & Heating Solutions, LLC
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Reviewed in January 2018
Guy, the Installer, was punctual and professional. System works well. Great improvement in comfort after the humidifier was added. Mandy was helpful in getting me connected to Dustin. Appointments available within a couple of days.
Greeley Plumbing, Heating & Air Conditioning
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Reviewed in August 2017
We had a very good experience with this company. The young lady helping us to select what we wanted and needed was very informative and experienced with the various floor material. The replacement took two and a half days and they removed all the scrap materials. The man who installed the...
Alex Carpet One Floor & Home
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Reviewed in May 2017
Terrible, Installer came to put a new furnace in our home this winter to replace a system that was barely over one year old that had failed. We have a multistage system (gas furnace, heat pump, and plenum). Part of the system worked but he couldn’t figure out how to hook the rest up apparently...
High Road Heating & Cooling Co
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Reviewed in August 2016
Representative did a great job of outlining the options. I also installed a twin tank fleck water softener with a whole house carbon system. 1/3rd price of Kinetico 1/3-1/2 less than Culligan/Ellingson/Eco with less pressure. I liked it so much that I had him install the system at our cabin....
TRAUT WELLS & WATER TREATMENT
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Doorbell Installation questions, answered by experts

Doubling the insulation in your home also doubles the R-value of said insulation. In other words, by adding more insulation, you can reduce the heat loss by half. Most homes benefit from increasing insulation. Older homes, in particular tend to have less insulation as is, so doubling your insulation could drastically reduce your energy bills, keep your home more comfortable, and take the strain off your HVAC system.

Ensures uniform application and maximizes insulation effectiveness and energy savings.

Experts use advanced techniques and tools to assess existing insulation levels and identify gaps. They implement strategic placement of new insulation to ensure complete coverage, optimizing thermal resistance and energy efficiency.

Professionals can install a radiant barrier in a day or two, but DIY installation will take several days. The time it takes to install a radiant barrier depends largely on the size of the space and the installation method. Larger homes can take a pro two to three days to finish the job. It’s also quicker to lay foil over existing insulation.

On average, insulating an attic costs about $2,500, with a typical range of $1,500 to $3,500. The final price often depends on the attic's size, with costs generally falling between $1 to $3 per square foot. For example, insulating a 1,800-square-foot attic would likely cost between $1,800 and $5,400.

If the project involves removing old insulation, this can add an average of $900 to the total cost, bringing a full removal and reinsulation project to around $3,000.

Several factors influence the overall cost:

Insulation Type: Prices per square foot vary significantly by material.
Reflective: $0.50–$1.50
Blown-in: $1–$4
Batt: $2–$4
Loose-fill: $2–$5
Spray foam: $2–$5
Structural insulated panels (SIPs): $4–$7
Project Complexity: Factors like sealing air leaks, poor attic accessibility, and required inspections can add to the cost.
Removal Issues: The discovery of mold, asbestos, or pests during the removal of old insulation can substantially increase the price.

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