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 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>

Is bubble wrap or dish foam better?

• <div>Bubble wrap is better for moving since it can be cut to size, whereas dish foam comes in precut sheets that are harder to manipulate. However, if you’re packing items like dishes, wine glasses, picture frames, or mirrors, dish foam will protect them better. Ensure you measure your box beforehand so you know what size dish foam to purchase. </div>

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Last update on August 12, 2025

Reviewed in August 2025
Ismar and his team arrived on time, were polite, and treated our home with the utmost respect. Our bathroom exhaust fan was installed with great professionalism, and the cost was very reasonable. We are absolutely thrilled with the result. We will certainly turn to them for future remodeling...
Ismar Remodeling
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Reviewed in April 2022
We hired Window World to do 2 jobs. One was an asphalt shingle roof and that went well. Crew arrived when they were supposed to and completed the job within 2 weeks of signing the contract. The second job was to install new vented soffits and wrap the facia with aluminum coil as well as...
Window World of Delmarva, Inc.
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Reviewed in September 2021
Overall great job. Removed the wallpaper, repaired older drywall and painted. Removed ceiling tiles , leveled ceiling and installed dry wall. Finished it off and painted. Looks great. Highly recommend
Pro Paint Group
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Reviewed in May 2020
My Plumber nightmare continues. Mistake allowing Issa Daahak into my home. Problem with master bathroom faucet not returning off. Minor repair per a YouTube video but I didn't have the tools. Issa forced me into installing a new faucet for almost $600. I showed him the YouTube video for the easy...
My Plumber Heating Cooling & Electrical
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Reviewed in July 2019
I have a large basement - ever since Hurricane Sandy I have had water leakage into the basement after a big rain - which continued to get worse. JES installed an internal drain system that is working great! The installation crew of Mizael, Cedrick, Dionte and Keenan did an excellent job of...
JES Foundation Repair
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Reviewed in November 2017
They do excellent work. They do their own plumbing, electrical work, and painting, so you don't need to wait for subcontractors to show up. Only the tiles and cabinets were installed by others. The crew leader is also great to work with. After four years in our kitchen, everything is solid as a...
Ed Weber Contracting
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Reviewed in August 2015
The contractor and staff were professional at all times. Installation from start to finish was 7 hours for this 2 ton unit. The system is working great. The price Sears quoted was higher than I expected. I hope the new heat pump system lasts and is as efficient as sold. Time will tell. I bought...
Sears HVAC
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Reviewed in March 2015
I ordered the windows on January 5, 2015. The sales person said it would be six to eight weeks. On February 27 they called and scheduled to have items installed. Windows and doors were installed on time and the installers were very professional. They cleaned up after they were finished...
Window World of Delmarva, Inc.
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Doorbell Installation FAQs, answered by experts

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.

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.

According to a report from Energy.gov, radiant barrier installations can save between 5% and 10% on your energy bill each month that your HVAC cooling is in operation. That fact can mean savings of up to more than $325 per year for homes that experience frequent direct sunlight and high summer temperatures.

Bubble wrap is better for moving since it can be cut to size, whereas dish foam comes in precut sheets that are harder to manipulate. However, if you’re packing items like dishes, wine glasses, picture frames, or mirrors, dish foam will protect them better. Ensure you measure your box beforehand so you know what size dish foam to purchase.

The cost to install or upgrade insulation generally ranges from $1.50 to $4.00 per square foot. The final price depends on factors such as the type of insulation chosen, the total area to be covered (home size), and local labor costs.

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