Proudly serving the Greater Northern VA area

Today's Hours: 8:00 AM - 6:00 PM

1-800-604-2252

Home»Service Area»Services in Alexandria City, VA

A Free Estimate!

First Name: *

Last Name: *

Street: *

City: *

State: *

Zip Code: *

Phone: *

Email: *

What prompted you to contact us today?

Describe your concerns:

By providing your information you agree to opt into receiving SMS messaging. Message and data rates may apply. Consent is not a condition of purchase. View our privacy policy for more information.

Reviews From Alexandria City County

By Wendy P.

Alexandria, VA

Monday, Nov 4th, 2019

"I am very impressed with your company and have mentioned..."

View Details
By Randy N.

Alexandria, VA

Thursday, Jun 11th, 2020

"The crew was OUTSTANDING! "

View Details
By Desiree J.

Alexandria, VA

Monday, Jan 20th, 2020

"The crew was courteous and did a good job overall,..."

View Details

See All Reviews

Products & Services

Home Energy Saving & Audit

Energy Efficiency Audit

Energy Saving Devices

Energy Saving Products

Energy Saving Tips

Home Energy Audit

Home Energy Conservation

Home Insulation

Attic Insulation

Blown In Insulation

Cellulose Insulation

Duct Insulation

Green Insulation

Insulation Contractors

Pipe Insulation

Reflective Insulation

Rigid Foam Insulation

Roof Insulation

Spray Foam Insulation

Wall Insulation

Window Insulation

Water Heaters

Electric Water Heaters

Gas Water Heaters

High Efficiency Water Heater

Hot Water Heaters

Indirect Water Heater

Instant Hot Water Heater

On Demand Hot Water Heaters

Solar Water Heater

Tankless Water Heaters

Water Heater Installation

Water Heater Replacement

Hvac Systems

Air Conditioning Contractors

Air Conditioning Systems

Boiler Heating Systems

Central Air Conditioning

Ductless Air Conditioning

Gas Furnace

Geothermal Heating And Cooling

Heating And Cooling Systems

High Efficiency Furnace

Home Heating Systems

Hvac Companies

Hydronic Heating Systems

Air Sealing

Sealing Air Leaks

Air Duct Leakage

Air Duct Sealing

Air Leakage Testing

Door Air Seal

Window Air Leakage

Radiant Barrier

Radiant Barrier Insulation

Radiant Barrier Cost

Roof Radiant Barrier

Ductwork

Ductwork Repair

Ductwork Installation

Ductwork Cost

Furnace Ductwork

Hvac Ductwork

Replacement Windows & Doors

Anderson Replacement Windows

Best Replacement Windows

Fiberglass Replacement Windows

Home Window Replacement

Low E Glass

Low E Windows

Marvin Replacement Windows

Vinyl Replacement Windows

Before and After Pictures from Alexandria City County

Alexandria VA Knee Wall/Storage Space Insulated with Foamax Panels

View Details

Basement Spray Foam-Alexandria, VA

View Details

See All Before & After Images

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

Alexandria City County's Leading Home Insulation Contractor

These Alexandria VA homeowners were unhappy with their homes performance. Their basement was often too cold and they wanted to...

Testimonial from Jennifer and Reid from Alexandria, VA

Happy Customers Surrounding Alexandria City County, VA

Testimonials

Reviews

Work Requests

Click the icons to see what our customers had to say.

Reviews from our customers in Alexandria City County, VA

5.0/5
Bryan M. Bryan M. Alexandria, VA

5.0/5
Meena S. Meena S. Alexandria, VA

Excellent - very communicative and professional.

5.0/5
Wendy P. Wendy P. W Bellefonte Avenue

5.0/5
Thomas C. Thomas C. Commonwealth Avenue

5.0/5
Tess S. Tess S. Adams Ave

5.0/5
James S. James S. Alexandria, VA

Excellent service and professional work. They were the only company who could explain the health and safety risks involved along with everything else. The only problem was a broken sprayer for which there was no spare that delayed completion. The company refunded our extra hotel night and John came out personally to ensure clean-up was done correctly and that their work met our expectations. Thanks for your services.

5.0/5
Wendy P. Wendy P. Alexandria, VA

I am very impressed with your company and have mentioned you to my friends.

5.0/5
Michael M. Michael M. Alexandria, VA

5.0/5
Wes T. Wes T. Alexandria, VA

5.0/5
Aileen W. Aileen W. Central Avenue

4.6/5
Robert Z. Robert Z. Moncure Dr

5.0/5
Wes T. Wes T. Edgehill Drive

5.0/5
Richard T. Richard T. Quaker Hill Ct

5.0/5
Patrick L. Patrick L. E. Maple St.

4.8/5
Everett Kotkowski Everett Kotkowski Alexandria, VA

5.0/5
Monika T. Monika T. Alexandria, VA

5.0/5
Saiza E. Saiza E. Boyle St

5.0/5
Greg F. Greg F. Burgess Ave

5.0/5
Michael W. Michael W. N PEYTON ST

5.0/5
Jan G. Jan G. West Glebe Road

5.0/5
Kevin D. Kevin D. Seminary Road

4.8/5
Monika T. Monika T. Dale St.

5.0/5
Colleen B. Colleen B. Powhatan Street

5.0/5
Nathan K. Nathan K. Martha Custis Dr

5.0/5
Doug F. Doug F. Watkins Mill Drive

5.0/5
Andrew M. Andrew M. N Columbus St

5.0/5
Jerome T. Jerome T. Roundhouse Lane

5.0/5
Terry S. Terry S. S. Henry St.

Spray Foam, Attic & Crawl Space Insulation Experts Proudly Serving Alexandria City County, VA

Comfenergy is an 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.

Spray foam, Attic, Crawl Space, & Blow in Insulation in Alexandria City County.

We offer FREE estimates for the following services:

Complete Home Energy Audit
Insulation
Crawl Space Repair
Sealing Air Leaks
Radiant Barrier Installation
Window replacement
Ductwork

Get your FREE, no-obligation services estimate in Alexandria City County, VA, 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!

> Schedule Your Free Estimate

Case Studies From Alexandria City County

This detached garage in Alexandria, VA was being used for an exercise room. Cold winters made it difficult to work out on those frigid mornings or...

Click to read solution...

This Alexandria, VA homeowner had done their homework on our web page. They learned how a vented crawl space can make floors warmer, lessen wintery...