What are the four common types of insulation?

• <div><p>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.</p></div>

Should I remove old attic insulation before adding new?

• <div><p>Ideally, you can add new insulation to your existing insulation. However, some circumstances require you to remove old insulation before adding any new insulation: </p><ul><li><p>If the insulation is over 15 years old</p></li><li><p>If the insulation is wet or moldy</p></li><li><p>If it is <a href="https://www.angi.com/articles/what-is-vermiculite-insulation.htm">vermiculite insulation</a></p></li><li><p>If you see signs of pest infestation</p></li></ul><p>Removing old insulation is best left to a pro who can safely dispose of potential moldy or asbestos-ridden insulation.</p></div>

Does insulating windows with plastic work?

• <div><p>Insulating windows with plastic works, but it can be time-consuming, and the end results can—and often do—end up lacking in aesthetics. Window film and <a href="https://www.angi.com/articles/how-to-caulk-windows.htm">caulking your windows</a> to make sure there are no drafts are two options that increase the energy efficiency of your home in a low-cost way. Plastic can be a good strategy while you consider alternatives.</p></div>

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Last update on December 30, 2025

Reviewed in December 2025
Had new siding installed. The crew did a decent job. There were a few issues along the way but Anthony my project manager handled everything to make sure the job was done right.
Home Genius Exteriors
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Reviewed in April 2025
Demoed a bathroom and expanded the room. Will have her back to do install.
J.L. Beach Home Improvements
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Reviewed in February 2025
We hired this company to replace the kitchen flooring. The job was to remove the existing vinyl flooring and install new flooring. Mr. Rodrigues made all efforts to accommodate our needs. There was a lot of change request from us in that they had to wait to finish the portion of flooring next...
Rodrigues Hardwood Flooring LLC
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Reviewed in March 2023
Ervin responded to me very quickly and answered any questions I had. Prices were reasonable and we had the fence installed within days. Set up was quick and he helped to start the training with our dog. Wish I would have done this sooner. Our dog stays within the fence and itâ s so nice to...
Dog Guard of Missouri
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Reviewed in February 2023
Company installers great to deal with. Did not get impatient with with my questions during install. Integrity HVAC home office fantastic and very honest and straight forward. Get them for all your furnace and ac needs.
Integrity HVAC
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Reviewed in October 2022
Solomon is an amazing and accurate contractor. He picked up and finished a job that another contractor botched. He installed custom crown molding, painted front porch, installed 2 wood beams, replaced railing and columns in the front porch... also will be installing railing in the entrance to...
Topline Home Improvements
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Reviewed in September 2022
Very professional installation of my Koehler Walk-in tub, removing and re installing my cupboard that was in the way. Bob III, Shawn, and Kenny worked very hard on this project in a small bathroom. Exceptional quality work. Bob always kept in touch and was great with instruction on the use of...
Home Smart Industries, LLC
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Reviewed in September 2022
Great service! Could not be happier! My requests were taken care of. Josh was right on schedule. The office was in touch with me the whole way. I even had a hiccup with the light fixture I bought, it was missing parts. Josh without hesitation said go exchange it, I’ll stay on site and take care...
Thomas Edison Electric Inc
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Reviewed in July 2021
Mike was good to work with, fast installation.
MB Electric
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Reviewed in February 2021
Guys that installed OurWindows from Mechanicsburg, Pennsylvania did an awesome job!
West Shore Home Chattanooga
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Doorbell Installation questions, 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.

Ideally, you can add new insulation to your existing insulation. However, some circumstances require you to remove old insulation before adding any new insulation:

If the insulation is over 15 years old
If the insulation is wet or moldy
If it is vermiculite insulation
If you see signs of pest infestation

Removing old insulation is best left to a pro who can safely dispose of potential moldy or asbestos-ridden insulation.

Insulating windows with plastic works, but it can be time-consuming, and the end results can—and often do—end up lacking in aesthetics. Window film and caulking your windows to make sure there are no drafts are two options that increase the energy efficiency of your home in a low-cost way. Plastic can be a good strategy while you consider alternatives.

Insulating your home's exterior walls can realize up to a 20% reduction in your monthly energy bills. This means that regardless of how much the project costs, it can begin to pay you back immediately. Additionally, adding spray foam and other high-end materials can increase the selling value of the property.

Fiberglass is considered a favorite garage insulation choice due to its combination of affordability, ease of installation, and overall effectiveness. Fiberglass provides good thermal resistance, helping regulate garage temperatures and minimize heat transfer. Additionally, fiberglass is moisture-resistant, reducing the risk of mold or mildew formation.

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