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Best egress window pros near Dulles, VA

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Top-Rated Egress window pros in Dulles - Updated Nov 2026

Avatar for Clifton Contracting
Clifton Contracting
4.8(
42
)
Egress Window - Install

Serving Dulles, VA and surrounding areas

Approved

In business since 1997

Free estimates

Warranties offered

"The install took 2 days which is what we were told before the work started. Everyone was great to work with and we would highly recommend them to anyone looking to have an egress window installed!"
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for 3 PROS Basement System
3 PROS Basement System
4.0(
39
)
Egress Window - Install

Serving Dulles, VA and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"Dr. Energy Saver was very thorough in finding the comfort and energy issues in one of my customers homes. They showed the customer exactly what was going on, why they had any issues, and how they were going to solve them. They provided a prioritized list of solutions for them too so they could pick and choose the importance to the homeowner. All work was done in a timely fashion, was clean, and fixed their issues."
Crawl Space Before Picture
Finished!
Beautiful Encapsulated Crawl space
SaniDry Sedona
Spray Foamed walls

+32

Response time1 day
82 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Comfenergy
Comfenergy
3.9(
50
)
Egress Window - Install

Serving Dulles, VA and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"I am so impressed with Comfenergy. The sales rep explained why we only needed to improve the insulation at the top of our unfinished basement walls, not the whole thing as another company recommended. So it was considerably less money than we thought we’d need to do the job. Brent and his assistant arrived on time to do the work and were so quiet that we weren’t inconvenienced in any way. I definitely recommend this company."
Attic before
Attic after
Historic Waterford Home
Historic Plaque
Crawl space before

+6

Response time1 day
111 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Roofing & More, Inc.
Roofing & More, Inc.
3.4(
88
)
Egress Window - Install

Serving Dulles, VA and surrounding areas

Approved

In business since 1997

Free estimates

Emergency services offered

"I was very impressed with this company. We did not need to do this project after all, or I would have been very happy to work with them. The technician who provided the estimate was top notch! He explained everything and even took a video with his phone to show me his findings after he inspected the doors and doorframe. I would highly recommend this company based on my experience with them."
Entry Door
Windows and Window Trim
Replacement Window
Windows and Doors
Before and After

+9

Response time12 hrs
Recommended by85%of homeowners
Avatar for '58 Foundations
'58 Foundations
3.5(
35
)
Egress Window - Install

Serving Dulles, VA and surrounding areas

Approved

In business since 1958

Free estimates

Warranties offered

"Sales rep did not provide all required details for project so on day of there were surprises. I was told the rep was no longer with the company."
Basement Waterproofing
Basement Waterproofing
Waterproofed Basement
Basement Waterproofing
Crack in Basement Floor

+18

Response time1 day
8 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for JDS Home Improvement LLC
JDS Home Improvement LLC
4.5(
26
)
Egress Window - Install

Serving Dulles, VA and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"I recently had an egress window installed in my home by JDS Home Improvement. I purchased the Rockwell Egress Window. This window brings in a lot of natural light and it's just beautiful! Jordan Jones put a hanger inside the cover of the window so I could hang a plant. Jordan,Joshua Jones and all of the work crew were very professional and kind. The quality of the work is superb. I even had a custom closet made that l am very pleased with. The installation of the window was completed in a few days. The staff cleaned up well. Due to the heavy equipment used,part of my lawn was affected. JDS planted grass seed and the grass has already sprouted in just a few days. If it were not for Jordan, this project would not have been possible. It is without reservation that I highly recommend JDS Home Improvement. I'm looking forward to using JDS Home Improvement for my next project."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+18

Recommended by88%of homeowners
Showing 1-10 of 47
Egress Windows FAQs, answered by experts

Yes, you can install a bay window in an existing house. You’ll need to have a structural engineer draw up plans to add the necessary support to your exterior load-bearing walls and a general contractor to make the changes to the framing around the new wall opening. This will cost an average of $3,000. After that work is done, a window installer can set the new bay window in place.

Most professionals can enlarge a window in five to 10 hours, depending on the window location, the exterior wall material, how easy it is to cut through it, and how much buildback you’ll need after the installation is complete. However, more complex projects can take two to three days from start to finish.

Depending on size, material, and labor, two windows can cost between $600 and $1,600.

If improperly installed, an egress window can compromise your foundation’s structural integrity, so it’s important to work with a pro to ensure your foundation remains in good shape. Any money you may save on a DIY egress window installation may cost you in the long run if your foundation is damaged in the process.

An egress window is similar to a regular window. However, this type of window opens fully to allow people to escape the home or rescue personnel to enter the home if an emergency occurs. Egress windows are required in all finished basements before they can be considered a living space.

The Dulles, VA homeowners’ guide to egress window services

From average costs to expert advice, get all the answers you need to get your job done.