Get matched with top insulation pros in Castleton, VA

Q: Should you remove old insulation before adding new insulation?

• <div><p>You do not always need to remove old insulation before adding new. If the existing insulation is in good condition&mdash;not wet, physically damaged, moldy, or infested with pests&mdash;you can add new insulation directly on top of it for a compounding effect. You can also mix different types, such as adding blown-in insulation around existing fiberglass batts.</p><p>However, removal is recommended if the old insulation is compromised by water damage or pests. You should also remove it if you plan to install a different type of insulation, like switching from roll or batt insulation to spray foam. If the existing insulation is very old or damaged, you will likely get more benefit from removing it and starting fresh.</p></div>

Q: Should I insulate my copper pipes?

• <div><p>Yes, you should insulate your copper pipes to help regulate their temperature. Well-insulated copper pipes will be protected from freezing and can conserve energy by keeping hot water warm for longer. Foam rubber insulation tubes are the <a href="https://www.angi.com/articles/what-materials-are-best-pipe-insulation.htm">best pipe insulation to prevent freezing</a> since they fit tightly around the pipes while still maintaining some flexibility.</p></div>

Q: Is it worth insulating an unheated garage?

• <div><p>Insulating an unheated garage can still be worth it. For instance, insulating an attached garage can help with heat loss from your house in general, and it can also make it easier to store electronics in your garage without worrying about them being exposed to extreme temperatures.</p><p>If you use your detached garage as a workspace, insulation can still make a difference. Plus, you can use space heaters and a window unit AC to help condition the space while you work without installing heating.</p></div>

Q: How much difference does a radiant barrier make?

• <div><p>According to a report from <a href="https://www.energy.gov/energysaver/radiant-barriers#:~:text=Some%20studies%20show%20that%20radiant,to%20add%20a%20radiant%20barrier.">Energy.gov</a>, 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. </p></div>

Q: Is it a good idea to insulate the garage door?

• <div><p>Without a doubt, insulating a garage door is a surefire way to make your home more energy efficient. Not only does insulating your garage door reduce your electric bills, but it also helps protect your valuables inside your garage, all while making for a quieter interior space. </p><p>In regions that drop below 0 degrees Fahrenheit, your car's battery is at risk of malfunctioning in a garage that drops dangerously low. So, homeowners who reside in extremely cold climates can especially benefit from insulating their garages.</p></div>

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Verified Reviews for Insulation Service pros in Castleton, VA

*The Angi rating for Insulation Service companies in Castleton, VA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.

*The HomeAdvisor rating for Insulation Service companies in Castleton, VA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.

Last update on February 24, 2026

Reviewed in February 2026
In the past I had a difficult time finding a consistent handyman until I found Dave. Dave scheduled a free estimate, was on time, and transparent in price. He has repaired columns, cleaned gutters, repaired a front door, and assessed my attic for insulation. He is honest- I was told I need to...
Dave's Home Services
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Reviewed in October 2025
The crew came out to do insulation they came in a timely manner Tony was my project manager he was very responsive and respectful
Home Genius Exteriors
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Reviewed in February 2023
Customer service is fantastic and the charge was extremely reasonable. The door was repaired in a very short amount of time. We will be using Robert’s services again in the future to repair our damaged insulation panels and new opener when it’s needed.
All Steel Garage Doors
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Reviewed in December 2021
Bill knows what he is doing and holds himself to high standards. We wanted to upgrade the attic, and when he left, we have insulation carefully and well placed and blanket over the access. I'm very satisfied. This attic is now really well insulated, he did a little caulking around the...
Lloyd's Insulation Service
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Reviewed in December 2020
From initial contact with their sales department we've had a great experience, Corey did an excellent job of taking pictures and showing the problems in our attic. Their level of communication from emails to phone calls was precisely correct by contacting me when needed and not too much with...
Comfenergy, LLC
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Reviewed in December 2020
From initial contact with their sales department we've had a great experience, Corey did an excellent job of taking pictures and showing the problems in our attic. Their level of communication from emails to phone calls was precisely correct by contacting me when needed and not too much with...
Comfenergy
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Reviewed in August 2020
Ulises Hernandez arrived promptly at the agreed-upon time and did an excellent job of patching the ceiling after first replacing the insulation that was removed by the plumber. The patched area blends in with the rest of the ceiling and is not noticeable. He cleaned up the area following the...
Route 20 Painting
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Reviewed in July 2020
Way too expensive. I m not spending over $4,000 to insulate my attic.
Ridge Remodeling & Design, LLC
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Reviewed in March 2019
I needed flexible ducting replaced in our attic and also sought information as to why the main bath ceiling had water stains on the ceiling. I called CB Lucas, who installed our heat pump system in 2003. Eric arrived, right on time, as scheduled, listened to the task at hand, and went to work....
C. B. Lucas Air Conditioning Heating and Plumbing
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Reviewed in August 2016
Technician Patrick Close was on time and very courteous. He explained what he was doing and why. He answered all my questions, notified me of upcoming potential maintenance and repairs without a long speech of possible calamities and warnings, then suggested (but did not hard-sell) a product to...
F.H. Furr Plumbing Heating AC & Electrical
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Find Insulation pros in Castleton

Comfenergy, LLC

4.6(

)

Serving Castleton, VA and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"I've been trying to find an expert in insulation for months to come out and tell me out to properly insulate around a removed chimney and Comfenergy was the expert I needed. Even though the insulation part of the job was too small for Comfenergy (wasn't above their minimum quote value) they were happy to give me their expert advice and I appreciate the time spent as I now know what to ask the roofing contractor to do in order to insulate this correctly. Thanks!"

+68

Response time1 day

23 neighbors recently requested a quote

Recommended by91%of homeowners

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Marks Duct Cleaning & Insulation Inc

5.0(

)

Serving Castleton, VA and surrounding areas

In business since 2004

"Rehabbing home and needed air ducts cleaned and insulated and under floor insulated. Mark and his team were available the same day and offered the lowers price around. Mark showed up promptly, was polite and courteous. Mark provided advise and shared his experience on all aspects of the work being performed and not only was comfortable with me watching but egar to explain. Expedited service, at site on time, went right to work."

Recommended by100%of homeowners

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Evergreen Electric LLC

4.9(

)

Serving Castleton, VA and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"We have used Evergreen Electric for several years for all of our electrical projects and Thad and his team have always ensured that the job is completed to our satisfaction. We would highly recommend them to friends and neighbors."

Recommended by100%of homeowners

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Graham Restoration LLC

4.8(

)

Serving Castleton, VA and surrounding areas

In business since 2010

Free estimates

Emergency services offered

IT IS WITH GREAT SADNESS TO WRITE THAT TRAVIS IS NOT LONGER WITH US. THANK YOU TO ALL OF OUR CUSTOMERS THAT HAVE SUPPORTED OUR FAMILY BUSINESS. We are a small family owned business specializing in home repair and remodeling. We can handle all those jobs that you can't or don't want to do.

+21

Recommended by93%of homeowners

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American Home Shield – Home Warranty

3.5(

5,688

)

Serving Castleton, VA and surrounding areas

In business since 1971

Credit card accepted

"Roberto was the technician and he was very professional, polite, and personable. He inspected the rest of our system and told us things that needed to be changed or repaired. He showed me pictures of everything. Everything he told me about was accurate. He quoted me a price for R38 insulation , Some of our ducts were plastic and he recommended them to be changed. I agreed completely and didn't know they were plastic. I would have had them done the work but I had no price comparisons to make and besides I didn't have the money right then. So he just finished the vent cleaning and left his card. He did a great job on the vent cleaning and was happy with the work."

Recommended by65%of homeowners

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Hampton Enterprise LLC

3.7(

)

Serving Castleton, VA and surrounding areas

In business since 1989

Free estimates

Emergency services offered

Our mission at Hampton Enterprise LLC is to provide clients with superior customer service, quality work and speedy service in all aspects of their home improvement needs. Licensed, insured and trusted since 1989; come discover the Hampton difference today!\n\nWe specialize in the installation and repair of Windows, Doors, Flooring, Sinks, Bathtubs, Showers, Sprinkler Systems and much more. We also offer Interior and Exterior Home Painting, Custom Welding Fabrication and Carpentry.Localy in your area just call and i will call back with a local number thank you . from James Hampton\n\nAL.Dothan 334-648-3817,\nAL Birmingham 334-648-3817,\nAL Huntsville 334-648-3817,\nAL Mobile 334-648-3817,\nAL Tuscaloosa 334-648-3817,\nAL Montgomery 334-578-4761,\nAR Little Rock 334-648-3817,\nAZ Phoenix 334-648-3817,\nCA LosAngeles/Sacramento 334-648-3817,\nCO Denver/Colorado Springs 334-648-3817,\nCT Hartford 334-648-3817,\nDE Dover 334-648-3817,\nFL Tallahassee 334-648-3817,\nFL Cape Canaveral/ Cocoa 334-648-3817,\nFL. Destin 334-648-3817,\nFL Gainsville 334-648-3817\nFl Jacksonville 334-648-3817,\nFL Orlando 334-648-3817,\nFL Panama City 334-648-3817,\nFL Tampa 334-648-3817,\nFL Miami 334-648-3817,\nGA Atlanta 334-648-3817,\nGA Albany 334-648-3817,\nGA Augusta 334-648-3817,\nGA Columbus 334-648-3817,\nGA Macon 334-648-3817,\nGA Valdosta 334-648-3817,\nIA Des Moines 334-648-3817,\nID Boise 334-648-3817,\nIL Chicago/Springfield 334-648-3817,\nIN Indianapolis 334-648-3817,\nKS Levenworth/Topeka 334-648-3817,\nKY Frankfort 334-648-3817,\nLA New orleans/Baton Rouge 334-648-3817,\nMA Boston 334-648-3817,\nMD Annapolis 334-648-3817,\nME Augusta 334-648-3817,\nMI Detroit/Lansing 334-648-3817,\nMN Saint Paul 334-648-3817,\nMO kansas City/Jefferson City 334-648-3817,\nMS Jackson 334-648-3817,\nMS Biloxi 334-648-3817,\nMS Gulf Port 334-648-3817,\nMT helena 334-648-3817,\nNC Raleigh 334-648-3817,\nND Bismark 334-648-3817,\nNE Lincoln 334-648-3817, \nNJ Trenton 334-648-3817,\nNM Santa Fe 334-648-3817,\nNV Carson City 334-648-3817,\nNV Las Vegas 334-648-3817\nNY Albany 334-648-3817,\nOH Columbus 334-648-3817,\nOK Oklahoma Ciy 334-648-3817,\nOR Salem 334-648-3817,\nPA harrisburg 334-648-3817,\nRI Providence 334-648-3817,\nSC Columbia 334-648-3817,\nSD Pierre 334-648-3817,\nTN nashville 334-648-3817,\nTX Austin 334-648-3817,\nUT Salt Lake City 334-648-3817,\nVA Richmond 334-648-3817,\nVT montpelier 334-648-3817,\nWI Madison 334-648-3817,\nWV Charleston 334-648-3817,\nWY Cheyenne 334-648-3817

Recommended by60%of homeowners

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Insulation questions, answered by experts

You do not always need to remove old insulation before adding new. If the existing insulation is in good condition—not wet, physically damaged, moldy, or infested with pests—you can add new insulation directly on top of it for a compounding effect. You can also mix different types, such as adding blown-in insulation around existing fiberglass batts.

However, removal is recommended if the old insulation is compromised by water damage or pests. You should also remove it if you plan to install a different type of insulation, like switching from roll or batt insulation to spray foam. If the existing insulation is very old or damaged, you will likely get more benefit from removing it and starting fresh.

Yes, you should insulate your copper pipes to help regulate their temperature. Well-insulated copper pipes will be protected from freezing and can conserve energy by keeping hot water warm for longer. Foam rubber insulation tubes are the best pipe insulation to prevent freezing since they fit tightly around the pipes while still maintaining some flexibility.

Insulating an unheated garage can still be worth it. For instance, insulating an attached garage can help with heat loss from your house in general, and it can also make it easier to store electronics in your garage without worrying about them being exposed to extreme temperatures.

If you use your detached garage as a workspace, insulation can still make a difference. Plus, you can use space heaters and a window unit AC to help condition the space while you work without installing heating.

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.

Without a doubt, insulating a garage door is a surefire way to make your home more energy efficient. Not only does insulating your garage door reduce your electric bills, but it also helps protect your valuables inside your garage, all while making for a quieter interior space.

In regions that drop below 0 degrees Fahrenheit, your car's battery is at risk of malfunctioning in a garage that drops dangerously low. So, homeowners who reside in extremely cold climates can especially benefit from insulating their garages.

The Castleton, VA homeowners’ guide to insulation services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles

Mitchell Grant
•
May 30, 2026May 30, 2026
How Much Does Crawl Space Insulation Cost? [2026 Data]
Crawl space insulation costs vary by size, insulation type, and material. Read this guide to learn how much your crawl space insulation could cost.
Deane Biermeier
•
May 3, 2026May 3, 2026
How Much Does Ceiling Insulation Cost? [2026 Data]
Your home's ceiling insulation cost will depend on several factors, including the project size, the type of insulation you use, and the R-value.
Rachel Hoffman
•
May 30, 2026May 30, 2026
How Much Does Insulation Installation Cost? [2026 Data]
New insulation can make your home more comfortable and boost energy efficiency. Use this insulation cost guide to get an accurate estimate for the installation.
Allie Ogletree
•
May 22, 2026May 22, 2026
Buyer’s Guide on How to Choose Insulation for Your Home
Choosing insulation for your home depends on the installation location, climate, budget, and more. Keep reading to learn how to choose the right insulation.
Allie Ogletree
•
May 3, 2026May 3, 2026
Should You Remove Old Insulation Before Adding New Insulation?
Removing old insulation may be necessary for upgrading your insulation. Keep reading to see if you should remove old insulation before adding new insulation.
Audrey Bruno
•
Apr 9, 2026Apr 9, 2026
What Is Insulation and Why Do You Need It for Your Home?
What is insulation? This behind-the-scenes home fixture will maintain comfortable temperatures in your home no matter the season. It’ll lower energy bills, to boot.