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>

Do insulation companies need to be licensed?

• <div>In some areas, insulation companies require a special license, while some states only require them to hold general contractor licenses. Some municipalities may not mandate any license, although you should always ensure a contractor is fully insured. You can use Angi’s <a href="https://www.angi.com/angi-license-check.htm">license lookup tool</a> to confirm whether or not an insulation contractor you’re considering holds the necessary license for your area. You can also contact the company for information regarding licenses, certifications, and insurance.</div>

What are the four common types of insulation?

• <div>While there are many different kinds of insulation, spray foam, blown-in, foam board, and batt and roll are the four types you’re most likely to see. That doesn’t mean they’re alike, though. Each one varies drastically in terms of cost, materials used, and how they’re installed—not to mention, how well they limit heat transfer.</div>

How much does drywall insulation cost?

• <div><a href="https://www.angi.com/articles/how-much-does-insulation-cost.htm">Drywall insulation costs</a> around $1,800, on average, but prices can range from $500 to $4,500, depending on a few different factors. The following things are important considerations to make when pricing out your insulation project:<ul><li>Square footage of insulation</li><li>Type of insulation </li><li>Climate in your area and the insulation R-value required</li><li>Whether or not your walls are already finished</li><li>Accessibility of the area </li><li>Whether or not you need old insulation removed first</li></ul></div>

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Last update on June 23, 2026

Reviewed in June 2026
Dabella did windows and a shower in my home. Their salesperson Heather Hanson is very good at explaining the process and helpful afterwards with any help i needed. I'm very happy with the quality of the product and the craftsmanship on the installation.
DaBella - Sacramento (Windows)
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Reviewed in April 2025
I hired Navarros Concrete they gave me a professional installation and my floor are properly sealed with concrete it's much easier to clean also budget friendly!
NAVARRO'S CONCRETE RESTORATION SERVICES
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Reviewed in January 2020
James did a great job installing the opener!! I would and I have recommended his services.
Gates Garage Door Services
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Reviewed in September 2016
Very nice owners & workers but very poor communication between supervisors and workers as well as to us, the CUSTOMER. My parents had done business with their father in the years past, so that is why I chose them over all the other businesses. Both owners told me they vividly recalled working...
Bippus Roofing
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Reviewed in May 2016
They were amazing! I requested a quote online which they followed up with promptly via phone. I never once felt pressured to use their service, but based on their customer service and helpfulness I knew I wouldn't use any other company. Once my beautiful door was installed they cleaned up...
Hawkins Exteriors
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Reviewed in November 2014
Had them install a wheel chair ramp and the quality didn't match the price for the job.
Miguelitos Landscaping
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Reviewed in February 2014
It took a little longer than expected to receive. I was told this was because of weather conditions. When it arrived, I found it very easy to install and setup. I live in a remote area and the cell service caused problems with the connection to the monitoring service. I called and they...
SimpliSafe Home Security
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Reviewed in April 2013
This past winter we had a few wind storms that kept blowing off shingles off our roof. It had been about 25-30 years since our roof had been replaced and I was told we probably had a couple of years left on our roof. Instead of repairing it everytime we had a windstorm I decided to replace the...
Alpine Roofing, Inc.
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Reviewed in December 2012
For the service and installation we received we give an "A" rating on all levels. This company offered some very unique edges for our granite counters at no extra cost.
STONE & BEYOND
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Doorbell Installation questions, answered by experts

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.

In some areas, insulation companies require a special license, while some states only require them to hold general contractor licenses. Some municipalities may not mandate any license, although you should always ensure a contractor is fully insured. You can use Angi’s license lookup tool to confirm whether or not an insulation contractor you’re considering holds the necessary license for your area. You can also contact the company for information regarding licenses, certifications, and insurance.

While there are many different kinds of insulation, spray foam, blown-in, foam board, and batt and roll are the four types you’re most likely to see. That doesn’t mean they’re alike, though. Each one varies drastically in terms of cost, materials used, and how they’re installed—not to mention, how well they limit heat transfer.

Drywall insulation costs around $1,800, on average, but prices can range from $500 to $4,500, depending on a few different factors. The following things are important considerations to make when pricing out your insulation project:

Square footage of insulation
Type of insulation
Climate in your area and the insulation R-value required
Whether or not your walls are already finished
Accessibility of the area
Whether or not you need old insulation removed first

A plastic vapor barrier should completely cover your basement to prevent water from penetrating through the walls. This typically goes before installing insulation to prevent moisture from building up and becoming trapped on the inside of your insulation, where it can collect and lead to mold damage. Installing insulation after the vapor barrier allows for any moisture to exit the walls for better ventilation.

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