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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
Aspen Air Purifier

Before and After Pictures from Annandale
Annandale Attic Wall Insulation Solution

Annandale Attic Wall Insulation Solution

Before After
Annandale Attic Wall Insulation Solution Annandale Attic Wall Insulation Solution

In addition to air sealing and insulation the surface of this Annandale VA attic, we needed to treat the walls too.  Removing the old traditional batt insulation was step one.  We then used the orange ZypFoam to seal up and cracks or places when air could come in our out.  Afterwards we cut SilverGlo insulation panels to fit the wall and then used ZypFoam again to seal that.  When the sun hits the outside of this home, this wall will keep the heat from building up on =side of the attic.  

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

Great customer feedback from an energy retrofit project where we did a full attic air seal and insulation in Annandale...
Happy Customers Surrounding Annandale, VA
Work Requests

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Reviews From Annandale
Testimonials From Annandale
Crew was friendly, efficient, and worked hard in a tough situation.
Testimonial by Leslie H. from Annandale, VA

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! 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

Annandale’s Trusted Window & Door Replacements

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

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 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 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...
This Annandale, VA homeowner was looking to turn their attic into a great storage space, and yet not be penalized for poor energy efficiency.
Work Requests From Annandale, VA
Project Location: Annandale, VA
I have a small flood in my basement which could be due to foundation drainage issue. I also want to evaluate my attic insulation and if it should be replaced.
Project Location: Annandale, VA
I interested in blown-in insulation into the attic of my home. I am having solar panels installed and when they are done with the attic wiring - or whatever they are doing up there... - I'd like the insulation blown in. Thank you! bill
Project Location: Annandale, VA
Looking for attic insulation refresh to keep warmth in bedrooms.
Project Location: Annandale, VA
Attic Insulation Quote
Project Location: Annandale, VA
Hello, I'd like to have somebody come over to look at the attic for a free estimate of insulation. there is an area that is missing insulation and the blanket seems to be thin. If there is anyway to know the R-value of the roof, that would be great. Anytime on Friday - Sunday from 11am-5pm works for me. Thank you.
Project Location: Annandale, VA
Our kitchen walls have no insulation which has lead to our water pipe freezing. I am looking for a quote for foam insulation for a kitchen wall and a carport wall.
Project Location: Annandale, VA
We are interested in an estimate for non-fiber glass insulation of our attic.
Project Location: Annandale, VA
Attic has insulation issues and house is in general much warmer upstairs than downstairs. Would like to see what attic insulation fix would cost.
Project Location: Annandale, VA
We are looking to upgrade our attic insulation.
Project Location: Annandale, VA
Our attic is 650 sq feet of one layer of batt (spelling?) insulation that's old and gross. How much would it cost for removal of old insulation and installing of new TAP spray insulation?
Project Location: Annandale, VA
Rooms are either too hot or too cold seasonal. Cannot regulate temperature. Monitored with nest remote sensors
Project Location: Annandale, VA
We have mice droppings and traces in the attic and need to clean and remove the insulation.
Project Location: Annandale, VA
Attic insulation replacement; 2nd floor warmer than first floor in summers.
Project Location: Annandale, VA
Home will have some roof work done and want to remove old insulation and put new in the attic.
Project Location: Annandale, VA
Project Location: Annandale, VA
Need more attic insulation
Project Location: Annandale, VA
Our kitchen is always cold in winter. It has ceramic tiles, a low slope roof, and lots of windows and two doors. We need to keep thermostat at 78 F in winter even for other rooms in the house.
Project Location: Annandale, VA
I'm building a workshop and I am looking for a quote to insulate the ceiling. The building is 12ftx16ft with a 12/7 roof pitch framed w/ 2x4s. At 3.5" it should be ~600bf of closed cell spray foam.
Project Location: Annandale, VA
House was built in 1951 and is very drafty. The attic already has some insulation in it, but we are looking to increase the amount of insulation and/or replace it to create more energy efficiency and combat heat loss. The attic is approximately 800 sq ft
Project Location: Annandale, VA
Need a total home energy audit to see where are the heat/cooling loss and what's needed for home comfort and also energy savings.

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