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Insulation Services
Spray Foam Insulation
Attic Insulation
Super Attic System
Blown-In Insulation

Types of Home Insulation

Basement Insulation
Crawl Space Insulation
Garage Insulation
Wall Insulation

Air Sealing Services
Blower Door Test

Additional Services
Ductwork Solutions
Home Energy Audit
Replacement Windows
Replacement Doors
Interior Window Inserts

Company Awards
Loudoun's Favorite Insulation Company 2019
The results are in from Loudoun Now's Annual Favorites Poll. Comfenergy is the winner for Favorite Insulation Company!... [Read more]
Best of Loudoun - 2019
We won the Best Insulation Company in Loudoun County again this year!!... [Read more]
2018 Superior Service Business of the Year
Comfenergy earned the 2018 Superior Service Business of the Year award from the Loudoun County Chamber of Commerce... [Read more]
More Awards

Gainesville's Trusted Spray Foam Insulation, Home Energy Audit & Window Replacement Company

Scott Beers was very easy to work with and the book and descriptive materials were so professionally done I was...
Happy Customers Surrounding Gainesville, VA
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Home Insulation Experts Serving Gainesville, VA

Comfenergy is Gainesville's authorized dealer of the nationally renowned Dr. Energy Saver network of the best energy-conservation contractors across the country. We are not just a contractor company, we specialize in helping you understand your home's current energy efficiency, suggest repairs, and we also do the work! Not only do we offer a variety of home energy services, but we also offer replacement windows and door services to keep the outside out and warmth in, and to boost your curb appeal. You'll receive the maximum energy and cost-saving results with the least amount of hassle. Customer satisfaction is our goal, and we take whatever steps necessary to ensure that you are more than happy with our service. At Comfenergy our slogan is "We Fix Uncomfortable Homes!", and we guarantee we will do that. If your energy costs are too high, or there are areas of your home that are too cold in the winter or hot in the summer, contact us today!

Expert Spray Foam Insulation Company

At one point pink fiberglass insulation was the best option for home insulation. However, today spray foam insulation is the much better option. Spray foam insulation has several benefits and beats the traditional fiber-glass product in every way. Spray foam insulation is the top choice for homeowners, contractors, and building scientists (the experts who study home energy performance) for several reasons. Here are the top reasons spray foam insulation should be your number 1 choice:

Advantages of Spray Foam Insulation:

  • Provides both insulation and air sealing
  • Fills gaps and cracks
  • High R-value
  • Speedy installation
  • Spray foam won't shift, settle, or fall out of place

Gainesville’s Trusted Window & Door Replacements

Comfenergy also offers window and door replacements for an even more beautiful and efficient Gainesville home. We install Simonton interior window inserts, window replacements, and door replacements with expert precision. Replacement windows and doors will help to maintain more even temperatures and eliminate drafts and energy loss in your home. New windows and doors not only improve the interior and exterior appearance of your home, but they also can lead to significant energy savings. Call to schedule a free estimate today in Gainesville, VA!

Help Your Home with Attic Insulation

Upgrading your home’s attic insulation is a very effective & popular energy-saving method because there is usually a lot of room for improvement. Most homeowners believe their attic has enough insulation but once we explain how much insulation is actually needed to make your home efficient people understand that they don’t have anywhere near enough. It is common knowledge that hot air rises which is why a properly insulation attic is one of the most important things you can do for your home. By adding attic insulation to your home you are guaranteeing to save money and also have a more comfortable home. Not having a properly insulated attic is equivalent to constantly leaving one of your windows open. Don’t wait any longer to learn more about the attic insulation methods we have available in your area!.

Attic Insulation Services Available in Gainesville:

  • Blown-in Insulation
  • Blown Fiberglass Insulation
  • Radiant Barrier
  • Rigid Foam Insulation

Crawl Space Insulation Experts

Do you need crawl space insulation installed or replaced? If so, you're in the right place! A damp crawl space with falling or sagging insulation usually means the space has a moisture problem. If that is the case our team of experts can provide a vapor barrier to keep moisture out of your crawl space. We can then replace your existing insulation with a better option such as rigid foam or spray foam insulation. If your crawl space is completely missing insulation then your home is most likely cold and drafty. This is because the environment in your crawl space will transfer to other parts of your home, which is why proper crawl space insulation is essential to keeping your home comfortable and your energy bills low. To learn more about crawl space insulation cost, call, or click today!

Complete Insulation Services You Can Trust!

Comfenergy is Northern VA's preferred home insulation and air sealing services company. We have helped many homeowners not only reduce their home energy bills but improve the overall comfort of their homes without patented home insulation solutions.  Did you know that most modern homes do not have adequate insulation? Because of this, your home may feel drafty or uncomfortable throughout the year, mostly in the summer and winter, and this can increase your home energy costs. Proper insulation in your home allows your heating or air conditioning systems to work more efficiently which will save you money. 

We offer a wide variety of home insulation products and services, and each one serves its own unique purpose.  Our most popular form of insulation is spray foam.  Spray foam insulation is extremely versatile and can be used almost anywhere in your home. Spray foam insulation is one of the best ways to lower energy costs, sometimes 30% or more!

Along with spray foam, we use many other different types of insulation as well. Some of our other insulation products include rigid foam, blown-in, cellulose, fiberglass, radiant barrier, and much more.  We understand that insulation is only part of the home energy and comfort equation, so because of this, we can insulate any area of your home.  We insulate spaces such as attics, basements, crawl spaces, walls, floors, garages, and much more.  If your home is uncomfortable or energy bills are too high, contact us today for a FREE home insulation quote!

Home Insulation Services:

Comprehensive Home Energy Audits

Do you think your home is not as energy efficient as it could be? The home energy experts at Comfenergy offer homeowners of Gainesville custom home energy audits.  Before we perform any work in your home, we will take the time to sit with you and discuss what areas of your home are your most problematic, and figure out if you are having common issues.  We till perform our energy audit, and once we have the results, we will go over our findings with you and figure out the next step.  We believe that this approach is the most beneficial for both parties because we can prioritize whatever work needs to be done without wasting your hard-earned money.  If you are interested in a comprehensive home energy audit, contact us today!

Get your FREE, no-obligation services estimate in Gainesville, Virginia, you'll also receive a free copy of "Saving Energy and Money at Home," a great book to use as you begin to create a more comfortable, healthy, and energy-efficient home!

Case Studies From Gainesville
This Gainesville, VA homeowner had a frozen bib. We needed to replace the pipe and then find a way to prevent it from happening again.
Work Requests From Gainesville, VA
Vicinity of Clubhouse Rd in Gainesville
Moved into a new home a month ago and would like an home energy audit
Vicinity of Jade Drive in Gainesville
Was working with another company for foam insulation in our attic. That company transitioned To commercial focused installations before we could finalize.
Vicinity of Thornton Dr in Gainesville
I'm looking to better insulate my 1300 sq ft attic and seal penetrations. Also looking to insulate exterior walls on my 60ish year old home.
Vicinity of Bearhurst Dr in Gainesville
The room over our garage is too hot in summer and too cold in winter
Vicinity of Valderrama Court in Gainesville
Need to remove fiberglass insulation and spray foam attic
Vicinity of Hunters Run Way in Gainesville
Recent issue with moisture in a small storage space in the basement of my townhouse. With all the rain we have had lately I noticed a very strong musty smell coming from that area. I'm concerned and need to have this evaluated as soon as possible. Thanks!
Vicinity of Majestic Prince Loop in Gainesville
Interested in having insulation replaced in attic and air sealing.
Vicinity of Tenbrook Drive in Gainesville
My attic is too hot in the summer
Vicinity of ALPINE BAY LOOP in Gainesville
Large second story dedicated HVAC struggling in summer. Ducting and air handler in attic. Ducting is poorly insulated and installed. Attic needs insulation. Better sealing or encapsulation likely needed.
Vicinity of Links Pond Cir in Gainesville
My gas fireplace becomes very drafty when temperatures drop below freezing. I would like to get an estimate for insulating the fireplace. I recently discovered that my home has a makeup vent installed in the unconditioned attic. I would like to discuss options for extending this vent to the exterior of the home. I am also interested in learning more about my home's use of internal air and if I may have a negative pressure issue. This may involve getting an energy audit service at some future date after some other improvements have been made first.
Vicinity of Tenbrook Drive in Gainesville
We have an addition that was built before we bought the house. The addition was built out of a portion of a garage and is very hard to maintain temperature consistent with the rest of the house. As such we have a feeling as if the attic area over the addition was not properly insulated.
Vicinity of Lee Carter Rd in Gainesville
I have an unfinished basement and the insulation gets frozen to the outside walls and also between the joist in the floor.
Vicinity of Tillinghast Lane in Gainesville
Attic insulation cold and hot master bedroom.
Vicinity of Side Bay Ct in Gainesville
Cold floors in living space above garage. Nine degrees diff than thermostat setting.
Vicinity of Willingboro Ct in Gainesville
We will be renting out or basement and want the best sound quality spray in insulation between the 1st floor and basement.
Vicinity of Paddock Court in Gainesville
House is one level. Built in late 1990s. Moved in 2 yrs ago. Exterior rooms very cold. Probably need energy audit to determine insulation needs.
Vicinity of Roxborough Loop in Gainesville
I have blown fiberglass and would like to add additional layer to attic.
Vicinity of Lawnvale Drive in Gainesville
Looking for a quote for blown in insulation in attic.
Vicinity of Arrowleaf Turn in Gainesville
I wanted to find out how much it costs to have our ducts checked for leaks? My main concern is that I have allergies and I find our house to be crazy dusty. I read that this can be caused by having leaks in the ductwork.

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