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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

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 & Home Energy Audit Specialist in Annandale

Crew was friendly, efficient, and worked hard in a tough situation.  ...
Happy Customers Surrounding Annandale, VA
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Home Insulation Experts Serving Annandale, VA

Comfenergy is Annandale'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 Annandale:

  • 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:

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 Annandale 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 Annandale, 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 Annandale
A referral from Eric Glowacki at Twin Tech LLC HVAC led to this Annandale, VA homeowner reaching out to Comfenergy. He was experiencing sweating duct...
This Annandale, VA home had a beautiful sun room addition off the back of the house. However, the homeowner noticed it was always cold in the winter...
Homeowners in Annandale, VA had been dealing with water in their basement for a year and a half. They had several people come out to try to remedy...
Work Requests From Annandale, VA
Vicinity of Bristow Drive in Annandale
We would like to know how well our home is insulated & if we're wasting energy
Vicinity of Renwood Lane in Annandale
When we moved into our house this past October, the home inspector said we would want to add insulation to the attic because it only had a few inches in there. We would like to see if adding it will help out heating and cooling!
Vicinity of Knox Road in Annandale
High energy costs, especially during winter.
Vicinity of Mt. Airey Lane in Annandale
We would like to enhance the energy efficiency of our bedrooms. We live in a 3 story townhouse where it is impossible to keep the upper floor below 75 degrees in the summer, despite the bottom two floors being frigid.
Vicinity of Branch Rd in Annandale
We are the new owners of a rather old house - originally built in 1955. During the winter, the heat seemed to run much more than we were used to, and now that it is starting to get warm, the AC runs A LOT. We know the attic insulation is lacking, and are interested in seeing what other options can be utilized to increase the efficiency of our home.
Vicinity of Northfield Dr in Annandale
Looking to get a quote on closed cell spray foam insulation
Vicinity of Heritage Dr in Annandale
Insulating sub-floor over crawlspace 30 x 30 feet. Crawlspace is drained with sump pump.
Vicinity of Fern Lane in Annandale
Insulation in Attic. Add more / remove old and replace. Make it more energy efficient.
Vicinity of Hillbrook Drive in Annandale
Removal of existing attic insulation due to mice and reinstallation of new. Fix and close off entry points and damaged baffles.
Vicinity of Oliver Av in Annandale
Crawlspace insulation under finished porch room
Vicinity of Toll House Rd in Annandale
Looking for better home insulation, especially above a car port.
Vicinity of Lavaine Ct in Annandale
House is poorly insulated and ceilings get hot in summer - needs new blown in attic insulation
Vicinity of Marshall Dr in Annandale
We just moved and are interested in learning about what could be done to our attic and crawl space to make it home more comfortable and energy efficient.
Vicinity of Holborn Ave in Annandale
50 year old home. We want to redo the attic insulation to help with excessive heat/cold on the second level of the home.
Vicinity of Backlick Rd in Annandale
We'd like an estimate insulation attic
Vicinity of Pacific Ln in Annandale
I am interested in getting spray foam installed in my garage (under finished space) and potentially in my attic as well. Thanks!
Vicinity of Van Masdag Court in Annandale
We believe there is limited insulation on our end unit townhouse. recent cold temperatures and wall temp on exposed side prompted interest in increasing insulation
Vicinity of Burbank Rd in Annandale
I am in a newly purchased home and we have two separate attic sections that I know from the home inspection are low on insulation. The place does seem to fluctuate rather quickly so I am open to anything that will help reduce heating/cooling costs and get this place properly insulated!
Vicinity of MEDFORD DRIVE in Annandale
Home inspector said, repair low attic insulation and add where missing with proper R house is very old house 59 years old
Vicinity of Hampton Village Pass in Annandale
Hi, We just purchased our first home. It's a townhome and we were wondering if you do soundproofing to common walls. I google searched soundproofing and your company came up. We are interested in getting a quote for a couple walls in common areas and bedrooms.

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