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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 Chantilly
Spray Foam Garage Ceiling

Spray Foam Garage Ceiling

Before After
Spray Foam Garage Ceiling Spray Foam Garage Ceiling

Closed cell spray foam being used on a garage ceiling to keep the rooms above warmer in the winter.

Cold basement in Chantilly

Cold basement in Chantilly

Before After
Cold basement in Chantilly Cold basement in Chantilly

This basement in Chantilly was often colder than the client felt it should be. After inspection by Stephen Raddie it was identified that the solution to the cold was to add insulation and spray foam to certain areas in order to create a more improved air seal which allowed for better control the temperature in the basement. Spray foaming the rim joist to seal and insulate made a significant improvement.

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

Reliable Home Insulation & Spray Foam Services Professional in Chantilly

Excellent guys.  Worked fast and did quality work....
Happy Customers Surrounding Chantilly, VA
Work Requests

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Reviews From Chantilly
Testimonials From Chantilly
This homeowner in Chantilly Virginia wanted to make their house more comfortable year round. It was too hot...
Testimonial by Cordelia W. from Chantilly, VA
Customer called us to make their home more comfortable year round. Our certified home energy sales pro,...
Testimonial by Cordelia W. from Chantilly, VA

Home Insulation Experts Serving Chantilly, VA

Comfenergy is Chantilly'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

Chantilly’s Trusted Window & Door Replacements

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

  • 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 Chantilly 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 Chantilly, 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 Chantilly
A crematorium in Chantilly, VA called us asking for help in preparing their consultation room for business by sound proofing it from the adjacent...
This Chantilly, VA homeowner had lived with a freezing cold master bedroom in the winter for too long. Since moving into the home, in the master...
This Chantilly, VA homeowner had rooms over their garage that were very cold in the winter. Comfenergy offered a solution to dense pack cellulose...
Work Requests From Chantilly, VA
Project Location: Chantilly, VA
Additional attic insulation needed. Possible insulation around gas fire place needed.
Project Location: Chantilly, VA
Attic doesnt seem to have enough insulation, probably is not air-sealed is not too uncomfortable but would like to know if i can improve overall efficiency
Project Location: Chantilly, VA
Need to install insulation in one part of our attic and replace insulation in another part. Also looking into installing an attic fan if that is a service you also provide.
Project Location: Chantilly, VA
Need an estimate for attic insulation and sealing in my home.
Project Location: Chantilly, VA
Hi there, I live in a brand new townhome and am having some impact noise transmission from a neighboring unit. Looking to completely deaden the sound even if it means losing floor space. Thanks!
Project Location: Chantilly, VA
Have pest issue in the attic, so need new insulation in attic and crawl space. Need a quote.
Project Location: Chantilly, VA
Exploring energy saving options in our 33 year old Fairfax County home.
Project Location: Chantilly, VA
Finishing basement, want to make sure media room and common basement area is sound proof.
Project Location: Chantilly, VA
My attic insulation (which I believe is blown-in cellulose) appears to be low and needs replenishment.
Project Location: Chantilly, VA
Possible duct leakage
Project Location: Chantilly, VA
Need spray foam insulation for 20x20 garage. Already partially insulated, need exterior wall, ceiling, and garage door done.
Project Location: Chantilly, VA
Impact noise problems coming from townhouse neighbors
Project Location: Chantilly, VA
Noise between tenants space need to fill the walls with spray foam/insulation Thanks
Project Location: Chantilly, VA
Need spray foam in my Shed at the walls and roof shed size is 12x10 feet
Project Location: Chantilly, VA
Do you insulate ductwork in a crawl space? I am having an issue with condensation. I am available 8:00am-5:00pm this Wednesday and Friday for an estimate.
Project Location: Chantilly, VA
The room with the attic entrance is getting hot. I would like to understand if there are gaps in recess lighting as well as hatch door
Project Location: Chantilly, VA
We had a pest inspection done and the tech noted that our insulation level is low in our attic. I would like to get a quote for getting the insulation level up to the necessary level.
Project Location: Chantilly, VA
Our house is so hot, especially upstairs.
Project Location: Chantilly, VA
We have a room that gets very warm in the summer despite a working A/C vent. An HVAC company did an assessment and believes it needs to be better insulated.
Project Location: Chantilly, VA
I am trying to decide what home upgrade I'll have done next year (2024) and was interested in an estimate to for having my attic space encapsulated and the existing insulation vacuumed out. You did a friends house of mine, so I heard you do great work.

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