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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

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

Before and After Pictures from Ashburn
Ashburn VA- Condensation On Ducts

Ashburn VA- Condensation On Ducts

Before After
Ashburn VA- Condensation On Ducts Ashburn VA- Condensation On Ducts

The customer called s because they had a condensation problem with the ducts in their 1st floor town house family room.  This home, typical of many town homes in Ashburn, with a 2 car garage to the front of the home, and a family room tucked behind it. 

The problem was a clear air pathway from the space over the garage to the cold ducts in the ceiling above the family room.  We had to seal the rim joist to the exterior, and create an air barrier with silverglo foam block between the garage and the family room. 

The results were instantaneous, and this Ashburn home owner now has a house that is air sealed and does not sweat.

Frozen Pipes in Ashburn, VA

Frozen Pipes in Ashburn, VA

Before After
Frozen Pipes in Ashburn, VA Frozen Pipes in Ashburn, VA

 The homeowner in Ashburn called,  as last year their pipes froze and they did not want that to happy again.This home i has always had issues with hot and cold spots, and freezing pipes in the winter.  We found cold air in the master bedroom attic to be getting around the batt insulation leading to the bathroom above.  This entire neighborhood of as notorious drafts and hot/cold spots. These homes have also dealt with many frozen water lines. The water lines were freezing almost 20 feet from the exterior of the home! Comfenergy installed 4" thick SilverGlo foam boards with heat reflective barrier on the attic walls.  

Problem solved!!!  Foam board insulation in an attic keeps the cold air from travelling beneath the bathroom tub and the pipes from freezing.

The homeowner will be more comfortable in the Summer and Winter.....but it lessened the draftiness of the home, and the pipes don't freeze any more!!!  

Spray Foam Garage Ceiling-Ashburn, VA

Spray Foam Garage Ceiling-Ashburn, VA

Before After
Spray Foam Garage Ceiling-Ashburn, VA Spray Foam Garage Ceiling-Ashburn, VA

This Ashburn, VA had rooms over the garage that were too hot in the summer.  This is can often be caused by fiberglass batts installed by the builder in the ceiling of the garage.  They fall away from the sub-flooring depleting all thermal insulating value.  This customer decided to remove the entire garage ceiling and use closed cell spray foam to fix the problem.

Company Awards
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]
2018 Best of Loudoun Award
Loudoun Times Mirror's "2018 Best of Loudoun" award... [Read more]
More Awards

Home Insulation, Energy Audit & Window Replacement Contractor Serving Ashburn

I contacted Justin because our first floor master bedroom was extremely hot during the summer and very cold in the...
Happy Customers Surrounding Ashburn, VA
Work Requests

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Reviews From Ashburn
Testimonials From Ashburn
I appreciated the time spent showing me the work and explaining what was going to be done.
Testimonial by Andrew A. from Ashburn, VA
Salesperson went over everything crew would do.
Testimonial by David O. from Ashburn, VA
Mike was very thorough in explanation of what our needs were.
Testimonial by Jenn S. from Ashburn, VA

Home Insulation Experts Serving Ashburn, VA

Comfenergy is Ashburn'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! You'll receive the maximum energy and cost-saving results with 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 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

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 Ashburn:

  • 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 Virginia'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:

Basement Waterproofing Services

Is a wet basement driving you crazy, causing damage, or lowering your home's value? Our team of expert waterproofers can help. We offer a wide range of quality waterproofing solutions like:

  • Perimeter drainage systems
  • Doorway drainage systems
  • Sump pumps
  • Waterproof wall and floor products
  • Wall and floor crack repairs
  • Replacement windows
  • Water heater flood protection
  • Frozen discharge line prevention

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 Ashburn 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 your 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 Ashburn, 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 Ashburn
This Ashburn, VA homeowner wanted to make their garage into a heated and cooled workshop. Presently it was too hot in the summer and too cold in the...
The customer in Ashburn, VA had sweaty ducts that were dripping water onto the drywall in her basement family room, staining and ruining the drywall...
This Ashburn homeowner was complaining about a drafty kitchen on the back of their home this past winter. Hard to think about that now as we deal...
News & Events From from Ashburn
The same way that clothing acts as a barrier to keep your body warm during the winter, insulation protects your...
The same way that clothing acts as a barrier to keep your body warm during the winter, insulation protects your home to slow the flow of heat, in both the winter and summer. Heat and cool your home more efficiently with properly-installed insulation and air sealing.... [Read more]
Work Requests From Ashburn, VA
Presidents Cup Terrace in Ashburn
Our 2nd floor master bath has a window bump out that extends 8-10 feet down to just above the windows of my first floor. We believe the entire bumpout is uninsulated cresting an extremely cold master bathroom in the winter - and conversely warm and muggy in the summer. Could you guys take a look at this and see if it would be reasonable to spray foam or use dense packed insulation to address this issue? Thanks in advance, Derek Semp
Blythwood Ct in Ashburn
Need additional insulation in attic of 21 year old home. Remodeled bathrooms last year and to remove parts of the ceilings. Blown in in those areas fell out and needs to be added there as well.
Red Shale Ct in Ashburn
Draftiness and heat loss through the attic
Rectortown Chapel Sq in Ashburn
I want me home (new construction 2 year old) to be evaluated for air leaks (Fire Place and Windows) and fixed....
Windmill Dr in Ashburn
Humidity level in the house is high...
in Ashburn
Water drips from a ceiling air vent due to poorly insulated ducts or boot. Mold is growing around the vent. The problem is getting worse over time.
Kitts Hill Terrace in Ashburn
Insulation in the back wall of our townhouse and possibly windows replaced.
Helen Marie Ct in Ashburn
Looking for a quote to fix the insulation damage due to a roof leak.
Snow Powder Terr in Ashburn
Attic inspection and insulation inspection
Nickens Place in Ashburn
Our master bedroom is directly over the garage, and is always too cold in the winter and too hot in the summer. I'm assuming we need to have the garage doors insulated, which I'd like a quote on, but want to make sure none of our other garage walls are missing insulation.
Monti Cimini CT in Ashburn
High cooling cost. Our attic is finished.
Middleburg Chapel Ct. in Ashburn
Looking for correction to add efficiency to room over garage and energy audit. Thanks!
Regal Wood Dr in Ashburn
We had massive leaking from a faulty roofing contractor into our home. We are in the process of having the roof replaced (finding a BBB endorsed contractor this time) and working with insurance company on the interior damage. We will also need new attic insulation and would like a quote from you for that.
Olympia Dr in Ashburn
Looking to add insulation to my garage as the master bathroom is directly above it and gets very hot during the summer and very cold during the winter.
in Ashburn
We would like a home energy audit. Our HVACs, furnace, and water heater are old (21 years!). Attic too hot??? Windows drafty. We'd like some expert opinions!
Alicent Terrace in Ashburn
There was water running down my wall from the ceiling. Called home warranty and they sent a plumber. Plumber came out and advised it was not plumbing it was an condensation issue of the ductwork. Warranty then sent out an HVAC person who advised it is not their problem since nothing is broken and was advised to call you. We cut open a hole in the ceiling to verify there is condensation on the duct work and that was confirmed. The pieces of insulation had to be removed because they were soaked. We need to figure out the problem (was told by United Air temp manager what he thinks the problem is) and was advised by him to call you.
Ivy Glen Ct in Ashburn
Garage insulation, extremely hot attic, cold/hot rooms, noise dampening
Corder Pl in Ashburn
Hi. I have 2015 built home but do not feel that we have enough insulation in Attic. I would like an evaluation and quote to improve insulation. Thanks, TJ
Wayside Circle in Ashburn
My sons room has an attic space behind his closet. A ton of hot or cold air gets into his room through that space. Very cold in winter. Very hot now. Interested in anything that might help control that. Probably need insulation on walls and ceiling of that space as well as something on the floor too.
Ashley Heights Cir in Ashburn
Excessive heat and cold in garage due to non-insulated exposed walls and garage attic.
Serving the following Ashburn, VA zip codes
20146, 20147, 20148, 20149

our service area