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Products & Services

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
Weatherization

Additional Services
Ductwork Solutions
Soundproofing
Home Energy Audit
Replacement Windows
Replacement Doors
Interior Window Inserts
Aspen Air Purifier

Before and After Pictures from Alexandria
Alexandria VA Attic HVAC Duct Spray Foam

Alexandria VA Attic HVAC Duct Spray Foam

Before After
Alexandria VA Attic HVAC Duct Spray Foam Alexandria VA Attic HVAC Duct Spray Foam

This Alexandria VA home had HVAC Ducts running through the attic which had been wrap insulated but were not effectively delivering conditioned air to the rooms below.  The wrap insulation had tears and gaps where attic temperatures were able to impact the conditioned air from the HVAC system and allowed that conditioned air to escape.  In addition to better insulating the rest of the attic space, our Home performance Sales Pro Carl recommended that the HVAC ducts be encapsulated with spray foam to properly seal up and protect them for better delivery of the conditioned air inside.  

Alexandria VA Knee Wall/Storage Space Insulated with Foamax Panels

Alexandria VA Knee Wall/Storage Space Insulated with Foamax Panels

Before After
Alexandria VA Knee Wall/Storage Space Insulated with Foamax Panels Alexandria VA Knee Wall/Storage Space Insulated with Foamax Panels

Homes have many different designs.  Often, town homes are designed in a creative way to allow for maximum use of all possible space.  Knee walls in a top floor can be used for closets, storage areas or cut outs to give just a few more square feet of space.  Properly insulating a knee wall can be the difference between enjoying that extra space or not wanting to be in the area because it is uncomfortable.  Here we used Foamax insulation panels to provide insulation but keep as much useful space as possible for the homeowner.  

Alexandria VA Apartment Duct Spray Foam

Alexandria VA Apartment Duct Spray Foam

Before After
Alexandria VA Apartment Duct Spray Foam Alexandria VA Apartment Duct Spray Foam

This Alexandria VA apartment had HVAC ducts that ran adjacent to the windows and sliding doors that lead to the outside patio/deck area of the living space.  This left the HVAC ducts susceptible to impact from the external temperatures which caused the HVAC to run more often than it should have needed too. This also lead to added noise for the residents when the HVAC system was running.  Our Home Performance Sales Pro Pedro visited the home and found a solution to help protect the HVAC ducts from external temperatures and to reduce the noise coming from the HVAC system.  Pedro advised that the HVAC ducts be encapsulated in spray foam insulation.  Our production team removed the drywall around the HVAC ducts to gain access to each side and then applied spray foam to cover the ducts.  Once dried, the spray foam was shaved down to make it flat around the HVAC ducts and allow to reinstall the drywall that had been cut away.  

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

Spray Foam Insulation, Window Replacement & Home Energy Audit Specialist in Alexandria

John and Robert were great! ...
Happy Customers Surrounding Alexandria, VA
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Reviews From Alexandria
Testimonials From Alexandria
The salesperson did a great job! The crew was outstanding. They were the absolute best!
Testimonial by John R. from Alexandria, VA
We couldn't be more happy with the service!
Testimonial by Marie D. from Alexandria, VA
Excellent job. All the men were helpful and professional.
Testimonial by Lynn S. from Alexandria, VA

Home Insulation Experts Serving Alexandria, VA

Comfenergy is Alexandria'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

Alexandria’s Trusted Window & Door Replacements

Comfenergy also offers window and door replacements for an even more beautiful and efficient Alexandria 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 Alexandria, 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 Alexandria:

  • 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 Alexandria 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 Alexandria, 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 Alexandria
Installing
This Alexandria, VA homeowner had a crawl space with a water infiltration problem during periods of excessive rains.
Spray
A roofing company contacted Comfenergy to insulate a flat roof they were replacing. We suggested the use of foam spray insulation to better make an...
Reducing
This Alexandria, VA customer suffered from a noisy neighbor who kept him awake at night. He needed a way to reduce the noise coming through the...
Work Requests From Alexandria, VA
Project Location: Alexandria, VA
First floor is 5 degrees colder than second floor.
Project Location: Alexandria, VA
I would like an estimate on getting my attic insulated.
Project Location: Alexandria, VA
I live in a condo and can here my neighbors every move. I am looking for soundproofing advice and options.
Project Location: Alexandria, VA
The rooms above my garage are colder than the rest of the house so I'm interested in getting the garage ceiling insulated
Project Location: Alexandria, VA
Bathroom in foyer added to house decades ago (before we bought it) is freezing in the winter. We believe it lacks proper insulation and are looking for a fix.
Project Location: Alexandria, VA
Need closed cell spray foam on basement walla.
Project Location: Alexandria, VA
Would like to have spray foam applied to our crawl space
Project Location: Alexandria, VA
I'm assessing bids for an energy audit on my home.
Project Location: Alexandria, VA
Energy efficiency; keeping the house warm in winter and cool in the summer
Project Location: Alexandria, VA
100 year old home had little to no insulation in exterior walls. If possible, looking for solution that involves adding insulation from exterior of home.
Project Location: Alexandria, VA
Hardwood floor leaking underground.
Project Location: Alexandria, VA
Requesting a home energy audit. We are new to the area and purchased an old home.
Project Location: Alexandria, VA
We have a main pipeline above living area that froze last year. Looking at options to insulate.
Project Location: Alexandria, VA
I am looking to spray closed cell foam on my basement walls. Ready to book at soonest availability
Project Location: Alexandria, VA
Soundproofing for a shared wall to block acoustic sounds from TV.
Project Location: Alexandria, VA
I'm interested in getting an estimate for attic floor insulation and air sealing.
Project Location: Alexandria, VA
I would like a home energy audit, I am assuming our attics need additional insulation. Our upstairs temp is a lot higher than our main floor. I also would like to get an estimate for garage insulation.
Project Location: Alexandria, VA
Add on room in basement is not insulated. Basement not insulated. Would like a quote for the basement and the outside walls of the basement, as well as under the front porch. Thanks Nicola
Project Location: Alexandria, VA
I want an estimate on removing all the old insulation (rolled fiberglass, plus original lose fiberglass from the 50s) then stray foam all the top plates around the home's perimeter and above inside tops of walls and then adding cellulose insulation to an R-49 at least for my home. Its a rectangular home with dimensions of 26 x 45 feet. I'm getting bids for comparison purposes so I need a bid within 3 days,
Project Location: Alexandria, VA
Interested in a quote for existing insulation removal, air sealing, and blown in cellulose insulation.
Serving the following Alexandria, VA zip codes
22301, 22302, 22303, 22304, 22305, 22306, 22307, 22308, 22309, 22310, 22311, 22312, 22313, 22314, 22315, 22320, 22331, 22332, 22333, 22334, 22350

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