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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 Fairfax
Spray Foam Insulation in Fairfax, VA

Spray Foam Insulation in Fairfax, VA

Before After
Spray Foam Insulation in Fairfax, VA Spray Foam Insulation in Fairfax, VA

This sunroom in Fairfax, VA was very uncomfortable. Our team spray foamed the ceiling to make this room much more comfortable and energy efficient! 

Fairfax VA Attic Damning Walls and Insulation

Fairfax VA Attic Damning Walls and Insulation

Before After
Fairfax VA Attic Damning Walls and Insulation Fairfax VA Attic Damning Walls and Insulation

We often find attics that need to have insulation upgrades but cannot support the new material without it potentially moving around the attic.  Blown insulation can fill up empty spaces in an attic but it if is not contained, it can shift when the home owner or service technicians need to access the attic for different reasons.  We often build out these type of support walls to create insulation damns, holding the material in place and allowing for clear access to navigate the attic in other areas.  The height and angle of the walls can allow for different levels of insulation to be blown in.  

Fairfax VA Energy Efficiency Attic Project with Spray Foam

Fairfax VA Energy Efficiency Attic Project with Spray Foam

Before After
Fairfax VA Energy Efficiency Attic Project with Spray Foam Fairfax VA Energy Efficiency Attic Project with Spray Foam

This home in Fairfax VA had a multiple stage project to make the home more energy efficient and more comfortable.   One step was the encapsulation of the HVAC duct system in the attic with Spray Foam.  The existing ductwork had several holes at the joints where air was allowed to escape, making the HVAC system less efficient and requiring it to work harder and create more conditioned air.  The spray foam covering it protects the air from escaping and keeps attic temperatures from impacting the conditioned (cooled/heated) air travelling inside.  This will reduce the amount of energy used by the HVAC system and allow for better passage to the rooms it was intended to reach.  

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

High Quality Spray Foam & Crawl Space Insulation Services in Fairfax, VA

Corey was great.  The entire project was explained to us.  The crew was very efficient and took time to clean...
Happy Customers Surrounding Fairfax, VA
Work Requests

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Reviews From Fairfax
Testimonials From Fairfax
John's thorough evaluation of my home opened my eyes to problems that I had not previously considered.
Testimonial by Chris L. from Fairfax, VA
Kevin and Manuel were excellent.
Testimonial by David F. from Fairfax, VA
This Fairfax VA homeowner had a full attic project with insulation, air sealing and insulation paneling all...
Testimonial by Lynn M. from Fairfax, VA

Spray Foam, Attic & Crawl Space Insulation Contractor Serving Fairfax, VA

Comfenergy is Fairfax'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 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 you feel that 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!

Home 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:

  • Rigid & Spray Foam
  • Air Sealing
  • Attic, Basement & Crawl Space Insulation
  • Cellulose Insulation
  • Radiant Barrier Insulation
  • Blown-In Insulation

Fairfax’s Trusted Window & Door Replacements

Comfenergy also offers window and door replacements for an even more beautiful and efficient Fairfax 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 Fairfax, VA!

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 Fairfax 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 Fairfax, 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 Fairfax
What is insulation R-value? The R-value of building material, such as insulation, is its resistance to the movement or transfer of heat. R-value is...
This home was experiencing uncomfortably hot top floors in the summer and noticeably humid conditions. Upon our inspection, we found that the attic...
A great contractor with whom we have collaborated before, MAC Design Build called us about a sun room they were building that needed an air tight...
Job Stories From Fairfax, VA
Radiant Barrier for Comfort and Storage

A radiant barrier should always be a part of a home's insulation system. It functions to reduce temperatures in the attic by reflecting heat away. Radiant barriers are installed around the joists, roof beams, and wall studs - when combined with other insulation services, your attic can become a conditioned space. 

Besides comfort, installing a radiant barrier can allow you to use your attic for storage, because the heat will no longer damage your belongings. Radiant barriers can lower attic temperatures by up to 30 degrees. An insulated attic will also keep humidity lower, preventing moisture or mold damage to your things as well. 

Work Requests From Fairfax, VA
Project Location: Fairfax, VA
We would like a quote for insulation and air sealing drafty walls, doors, and basement. Out home upstairs is noticeably warmer than the basement
Project Location: Fairfax, VA
I need an estimate to replace the insulation in our attic.
Project Location: Fairfax, VA
We want to have a home energy audit to make our home more energy efficient.
Project Location: Fairfax, VA
Would like to discuss options to help deal with impact noise from the condo above my unit
Project Location: Fairfax, VA
Drafty kitchen and basement
Project Location: Fairfax, VA
Removal of blow in insulation. Addition of spray foam insulation
Project Location: Fairfax, VA
Looking for n estimate on 2-3 inches of closed cell foam on basement exterior walls as well as I'm joist area.
Project Location: Fairfax, VA
Attic insulation check and estimate
Project Location: Fairfax, VA
Looking for attic insulation
Project Location: Fairfax, VA
Cold air draft around some windows and doors.
Project Location: Fairfax, VA
Hello. We have some air pockets in our home after having replaced our windows and sliding glass doors therefore we'd like an assessment from your company.
Project Location: Fairfax, VA
Looking for a quote to have our basement insulated for future remodeling into a finished basement. Single family home - Roughly 2300 sq. ft total.
Project Location: Fairfax, VA
We have a 1950s split level with a combination of existing rolled and blown insulation in the larger of our two attics (the smaller one is in good enough shape) and I know the R-value is really deficient. We'd like to have that insulation removed and replaced with blown insulation that is at least up to code and ideally closer to DOE recommendations.
Project Location: Fairfax, VA
I would like to get a home energy audit done to improve the energy efficiency of our house.
Project Location: Fairfax, VA
Poor temperature control on the second floor of our house.
Project Location: Fairfax, VA
Old single pane Anderson windows. Need to be replaced
Project Location: Fairfax, VA
The previous roof on our home leaked and cause water spots and mild to grow in the attic insulation. Looking to replace the old insulation, remate the potential mold and seal up the attic tight.
Project Location: Fairfax, VA
Our house is chilly. Would like heat loss evaluation
Project Location: Fairfax, VA
Need sound proofing from road noise.
Project Location: Fairfax, VA
I am interested in soundproofing our basement.
Serving the following Fairfax, VA zip codes
22030, 22031, 22032, 22033, 22034, 22035, 22036, 22037, 22038

our service area