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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 Sterling
Attic Insulation in Sterling, VA

Attic Insulation in Sterling, VA

Before After
Attic Insulation in Sterling, VA Attic Insulation in Sterling, VA

A homeowner in Sterling, VA called as their house was hot in the summer and cold in the winter and wanted to make their home more comfortable all year.   We air sealed the attic floor with one part foam spray, then installed attic decking on the floor with plywood. We created plywood "dams" to keep the future cellulose insulation in place and off of the attic floor decking.  Finally, we created an attic hatch cover that was made o 4" thick SilverGlo foam boards, and blew in TruSoft cellulose insulation throughout.  The result the homeowmer will be warmer in the winter and cooler in the summer. 

Garage Insulation in Sterling VA

Garage Insulation in Sterling VA

Before After
Garage Insulation in Sterling VA Garage Insulation in Sterling VA

Cold floors in rooms above garages are typically caused by air gaps between the sub-flooring above and the fiberglass batt insulation below. Any time insulation does NOT touch the surface you are trying to keep warm or will NOT work!

See how big the gap between the floor and the insulation is in this Sterling Virginian Home WOW!!!!  This might have been the worst we have ever seen...Might be 2-3 feet of a gap!

Our team spray foamed the gaps to ensure no air leakage. These floors are now much more comfortable! 

Wall Insulation in Sterling, VA

Wall Insulation in Sterling, VA

Before After
Wall Insulation in Sterling, VA Wall Insulation in Sterling, VA

This homeowner in Sterling, VA experienced drafts in their home. We discovered that this homeowner’s walls were lacking efficient wall insulation. One of our experts installed Injection Foam to improve the insulating and air sealing value of a Fiberglass Filled Cavity. This homeowner will now be much more comfortable! 

Company Awards
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]
Best Picks 2019
Voted Best Picks for Insulation in 2019... [Read more]
More Awards

Home Insulation & Energy Audit Contractor Serving Sterling

Ismael, Rafael, and Jordan did an outstanding job!  I will ask for them again as our remodeling contunes....
Happy Customers Surrounding Sterling, VA
Work Requests

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Reviews From Sterling
Testimonials From Sterling
Crew was very thorough, clean, friendly, accomodating, offered suggestions, and were happy to make changes.
Testimonial by Michelle P. from Sterling, VA
They did an excellent job. Arrived on time, worked hard, and cleaned up well. Thank you!
Testimonial by Matt D. from Potomac Falls, VA
I appreciate how prepared he was, how he took the time to listen to my concerns, and didn't try to sell me things I wasn't sure we needed.
Testimonial by Adam S. from Sterling, VA

Home Insulation Experts Serving Sterling, VA

Comfenergy is Sterling'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 Sterling:

  • 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 Sterling 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 Sterling, 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 Sterling
Reston Limousine had a training room with sound issues. The insulation in this training room was inadequate and allowing sounds to travel to/from...
This Sterling home had rooms over garage that were too cold in the winter, and too hot in the summer.
This Sterling, VA homeowner was looking to improve the energy efficiency of their home. A full comfort and energy evaluaiton was performed and it...
Press Releases From Sterling
March 4th, 2016

Barbara Comstock, Republican Member of US Congress from Virginia's 10th District ...
March 4th, 2016 Barbara Comstock, Republican Member of US Congress from Virginia's 10th District visits Comfenergy in Sterling to show interest and learn what she could do to support this growing concern.... [Read more]
Work Requests From Sterling, VA
Vicinity of Muddy Harbour Square in Sterling
Attic insulation
Vicinity of Brentmeade Ter. in Sterling
Attic ceiling spray form insulation in area about 12x12.
Vicinity of in Sterling
(1) Humidity in basement causing white mold (2) Need additional insulation in attic (3) Family room is very cold in winter, including noticeable draft from fireplace.
Vicinity of Lock Court in Sterling
Estimate for attic space insulation
Vicinity of Water Valley Ct in Sterling
Potential water seeping up from the basement floor.
Vicinity of Comer Square in Sterling
Moving into our home on 3/15/2019. I have 2 patches of insulation that fell in attic that needs to be fixed. I would also like to add 10-15 inches of insulation into attic.
Vicinity of Owens Ct in Sterling
Kitchen is significantly colder than the rest of the house -- like to have that remedied.
Vicinity of in Sterling
I have a crawl space that needs insulation..
Vicinity of Hillsdale Dr in Sterling
Very drafty house, i have a FLIR camera and the attic has basically no insulation above a foot. Bought the house last year.. cold in winter, hot in summer. The fireplace is also a source ot tremendously cold air. Would like to fix 90% of the gaps and deal w windows amd doors later this year
Vicinity of Northbrook Way in Sterling
Our attic insulation is very old. I'm also very concerned about cold spots around the house where I think there's no insulation at all.
Vicinity of Landau Ct in Sterling
Duct work Seal
Vicinity of Emerson Ct in Sterling
I feel cold spots around the house. 1) The floor at our bay window is significantly colder than the rest of the main level. 2) Baseboards in our family room feel drafty. 3) Bedroom over the garage is very cold. I'd like to identify what is causing the cold air and resolve the issue.
Vicinity of Markey Ct in Sterling
4,000 s.f. attic, used as HVAC chase. Concrete block walls and metal "B" decking (underside) are not insulated. Ceiling is in place - drop grid with 2 x 2 tiles. You cannot walk in attic - will require removing the tiles to access the attic roof to spray insualtion
Vicinity of N Cottage Rd. in Sterling
Looking for an estimate for a home energy audit for my Sterling, VA townhome.
Vicinity of Cliftons Point St in Sterling
Looking for garage insulation or evaluation to solve issue where room above garage is about 5-10 degrees lower/higher than the rest of the house
Vicinity of Glenmere Sq. in Sterling
I am interested in an estimate for the following services: - Energy audit of home to determine if insulation needs to be added and/or replaced in some areas. - Insulating and waterproofing a crawl space. - Mold remediation. - Crawl space structural repair (need to determine if it's needed). - Garage insulation.
Vicinity of W Church Rd. in Sterling
I would be interested in getting a free estimate for crawl space encapsulation. My crawl space is currently taking on water which I have been pumping out. Not sure if this is your type of work, but would like my crawl space "improved" to prevent moisture/rot/standing water/etc. Thank you!
Vicinity of Avondale Dr in Sterling
We are need of an estimate for an attic. House was built in 1974- we just moved in and insulation is the old, yellow stuff. Much of it is old and appears torn out.
Vicinity of Amersham Court in Sterling
My electricity bill is high and the temperature through out my home varies significantly.
Vicinity of Shadow Woods Court in Sterling
I am looking to soundproof my basement for home studio recording
Serving the following Sterling, VA zip codes
20163, 20164, 20165, 20166, 20167

our service area