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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

Before and After Pictures from Leesburg
Fiberglass versus Spray Foam-Leesburg, VA

Fiberglass versus Spray Foam-Leesburg, VA

Before After
Fiberglass versus Spray Foam-Leesburg, VA Fiberglass versus Spray Foam-Leesburg, VA

This before photo shows a vertical wall in an attic insulated with fiberglass insulation. This fiberglass allows hot/cold air to travel through it and touch the drywall, thus allowing the heat and/or cold to transfer into the living space.

The after picture shows the fiberglass removed and newly insulated using closed cell spray foam.  This builds a great protective thermal and air barrier and makes the top floor of this home cooler in the summer months.

Skylight Insulation in Leesburg, VA

Skylight Insulation in Leesburg, VA

Before After
Skylight Insulation in Leesburg, VA Skylight Insulation in Leesburg, VA

Skylights are beautiful, but can increase heat loss/gain tremendously, just like in this Leesburg, VA home. Especially if they are not properly air sealed and insulated on the back side of them in the attic above.

Company Awards
Comfenergy is awarded as the Best Insulation Company in Loudoun County for 2018 by the readers of the Loudoun Times... [Read more]
Comfenergy was awarded as the #3 Dr. Energy Saver dealer for total sales in North America during the 2017 Contractor... [Read more]
Comfenergy is chosen as one of the top insulation companies by the readers of EBSCO Best Pick Reports for Fairfax,... [Read more]
More Awards

Home Insulation & Energy Audit Contractor Serving Leesburg

This testimonial was given by a condo homeowner from a large condo complex project we have been working on.  The...
Happy Customers Surrounding Leesburg, VA
Work Requests

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Reviews From Leesburg
Testimonials From Leesburg
The crew was respectful of our home and very diligent.
Testimonial by Joanne T. from Leesburg, VA
Carl was great! Took his time to explain everything. The crew explained everything well, worked very hard and very professional.
Testimonial by Philip O. from Leesburg, VA
Outstanding work & communication. I appreciated the opportunity to ask questions at the beginning of each day. Ismael & crew are a great asset to...
Testimonial by Jacob P. from Leesburg, VA

Home Insulation & Energy Audit Contractor Serving Leesburg, VA

Comfenergy is Leesburg'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!

Home Insulation Services You Can Trust!

Comfenergy is Nova'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:

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 Include:

  • Provides both insulation and air sealing; air sealing is excellent because the foam expands to fill gaps and cracks.
  • High R-value -about R-7 per in. depending on the formulation.
  • Speedy installation. Foaming can be done in a fraction of the time it takes to cut, fit, and seal rigid board insulation.
  • Once cured, spray foam insulation stays in place; it 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 technique available in Leesburg

  • Blown-in Insulation
  • Blown Fiberglass Insulation
  • Radiant Barrier
  • Rigid Foam Insulation

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 Leesburg 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 Leesburg, 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 Leesburg
This Leesburg, VA homeowner was looking to make their home warmer, less drafty, and more energy efficient this winter. A full evaluation by...
This Leesburg, VA homeowner was looking for ways to lower their utility bills...especially in the winter. They also complained of cold spots on the...
This Leesburg, VA homeowner wanted to turn his garage into a conditioned workshop to be able to use year round.
Press Releases From Leesburg
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]
Job Stories From Leesburg, VA
Creating Storage in Attic over Garage

Many home owners in Northern Virginia finish their basements for additional living space.  One of the unintended outcomes of this trend is that there is a shortage of storage space for items like Tax Returns, Christmas Decorations, Seasonal flower arrangement, luggage and the like.  You know, the things you need every now and then, but not that often.

One strategy to create a storage space for these items is to convert the attic space over the garage into usable storage. 

This project will be broken into phases:

1)      Install pull down Attic Stairs to improve access to the storage space.

2)      Install Radiant Barrier to reduce the temperature in the attic during the hot summers of Virginia.

3)      Address the vertical wall that separates the attic space from the conditioned space inside the house.

4)      Install flooring and shelving to create the storage space.

More to come as the project unfolds.

Creating Storage in Attic over Garage - Photo 1Creating Storage in Attic over Garage - Photo 2Creating Storage in Attic over Garage - Photo 3Creating Storage in Attic over Garage - Photo 4Creating Storage in Attic over Garage - Photo 5Creating Storage in Attic over Garage - Photo 6Creating Storage in Attic over Garage - Photo 7Creating Storage in Attic over Garage - Photo 8Creating Storage in Attic over Garage - Photo 9Creating Storage in Attic over Garage - Photo 10
Work Requests From Leesburg, VA
Mcintosh Place in Leesburg
Bring attic insulation to code Replace french door in rear Air sealing
Baish Dive in Leesburg
I would like to sound proof a shared wall in our living room. This is the only shared wall in the house.
Lees Mill Square in Leesburg
Would like a quote to have insulation added in attic. There are some areas that are low and even bare so would need everything brought up to the correct R-value.
Autumn Ridge Ct. in Leesburg
I need a estimate installing insulation in the attic of my 28 x 36 garage. I need to know if blow in or rolls are best. I have installed a drop down ladder and cat walks.
Goldsworth Ter SW in Leesburg
Basement 20 degrees colder then second floor and third floor fireplace box not insulated probably a draft from the fireplace.
SPencer Terrace in Leesburg
All the doors and windows are seriously drafty. The townhouse will not stay warm. Electric bill close to $400 this month
Crystal Lake St. in Leesburg
Interested in attic insulation and existing walls where air gaps exist.
Bald Hill Rd in Leesburg
We have an older house with a rather crude crawlspace. I would like to have it sealed / insulated for both energy efficiency improvements as well as pest control concerns.
Spencer Ter SE in Leesburg
Daughters bedroom is very drafty. Windows have been replaced, attic insulated, replaced HVAC. Now we have noticed a constant breeze from the baseboards. Her room is at least 7-10 degrees lower than it should be. Please help!
Hagley Place in Leesburg
The current weather is making areas in my recently purchased home uncomfortably cold. Need advice on what needs to be done to remedy cold areas in the house. Pretty sure a pimple froze in my sons bathroom today.
Red House Dr in Leesburg
Master bedroom upstairs over garage is cold. Lower level half of house seems colder than other half. drafty near doors
Trenton Circle in Leesburg
Home energy audit requested for SFH. Primary concern are two upstairs bedrooms which have become colder over time
Thomas Mill Road in Leesburg
We have a partially insulated crawl space. We have a heat pump in the crawl space. I'm not sure if we should insulate the floor and add more duct insulation or make the whole craw space. l
Candlewick Sq in Leesburg
My basement is freezing literally . Need to see what the issue is
Hanrahan Court in Leesburg
My gas fireplace was poorly insulated when the home was built. I have to fill the slots above and below the fireplace and never use it or cold air blows in as if the window was left open. Had a fireplace guy look at it last year, and he plugged all the holes he could see but didn't help. Is this something you do?
Tides Inn Way in Leesburg
It's cold cold cold in here
Ariel Dr NE in Leesburg
I would like to receive a quote on installing spray foam insulation under my all season room. The room is 320 sq ft and raised from the ground.
Vestals Pl in Leesburg
Hello. We're looking to get an estimate for installing the ductwork, fan, and makeup air for a new range hood. Our kitchen is getting remodeled, the old fan was 300 CFM, we are changing to 1200.
Foxridge Dr in Leesburg
The bedrooms above the garage are very hot in the summer and very cold in the winter. We also have a major draft coming in from a skylight.
Lafayette Place SW in Leesburg
I need old attic insulation removed, disinfected & new (non fiberglass) insulation installed for about 1100 square feet.
Serving the following Leesburg, VA zip codes
20175, 20176, 20177, 20178

our service area