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Top-Rated Egress window installers in Portsmouth - Updated Nov 2026

Avatar for True North Contracting
True North Contracting
4.4(
96
)
Egress Window - Install

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2005

Free estimates

Small jobs welcome

"Costas and his team did a wonderful job on my Aunt's home. What started off as a deck repair, turned into so much more (siding, windows, new 1/2 bath). The house had been in a bit of disrepair and he was very thoughtful and thorough in his approach to bringing it back to life. My family and I will enjoy it for many years to come, and I truly appreciate some of the little things he did along the way to ensure everything was done right. He took the initiative to select things when I was not able to be there. It felt very much like he was treating as if it were his own home. His attention to detail was terrific, and he was super responsive. THANK YOU again!"
Roof
Kitchen Reno
Finish
Ready for Grout
 Finished

+66

Response time7 hrs
13 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for NH Projects LLC
NH Projects LLC
5.0(
20
)
Egress Window - Install

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2021

Free estimates

Customers say: Quick response

"NH Projects LLC Timely and meticulous . Showing great attention to detail. We had some water damage and the floors and some walls had to be replaced. We had an old electric heater that had to be disconnected and they placed a call to a electrican and he was here that day , we also needed a plumber and they were able to get a plumber here also the same day. Talk about a complete package. We were beyond pleased. 5 ***** stars no doubt. Paul & Christina from Nashua NH."
Our Work
Our Work
Our Work
Our Work
Our Work

+8

Response time5 hrs
Response rate87%
1 neighbors recently requested a quote
B.G. Construction
4.2(
29
)
Egress Window - Install

Serving Portsmouth, NH and surrounding areas

Approved

In business since 1987

Free estimates

Customers say: Quality work

"There are a lot of great things to say about Bill. First of all, he can do ANYTHING. Bill replaced siding, installed new plywood and Tyvec, painted my house and deck, built a new front porch, repaired and built new features on my back deck, eliminated rot, installed new gutters, re-insulated my basement, and even fixed a closet door in my house. He is a perfectionist and will treat your house like it is his own. Our house was in really rough shape before Bill came and now it looks stunning. We get compliments on it all the time. If you want someone that will do the job right, won't cut corners, and is a very nice person to work with - Bill is your guy."
Response time1 day
Recommended by90%of homeowners
Smithtown Landworks
5.0(
5
)
Egress Window - Install

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

Smithtown Landworks has been dedicated to this craft for over 23 years. We pride the company on reliability, excellent communication, integrity, and quality work. We strongly believe in giving our absolute best in all our projects no matter how big or small. We are experts in our trade and will always keep you educated on your task or project. We look forward to earning your business \n

Response time5 hrs
2 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Envy Homes, LLC
Envy Homes, LLC
4.8(
3
)
Egress Window - Install

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2021

Warranties offered

Customers say: Terrific value

"The guys were a great team. They showed up on time, communicated well with each other, and cleaned up any mess they made. There was quite a gap of time between when they finished the porch and came back to finish the ceiling (a small part was due to electrical work) because they overbooked themselves, but they kept in contact with me about it and successfully completed the job. Only complaint at this point is I contacted them after the job was done about something I had that went missing, and they never returned my messages. Will be placing a phone call to try and remedy the situation."
Framework
Framework
Framework
Outer Finish
Design Touch

+10

Response time3 days
Recommended by100%of homeowners
Summit Contracting
New to Angi
Egress Window - Install

Serving Portsmouth, NH and surrounding areas

Approved

\nAs a local general contractor with over 75 years of combined experience in \nresidential trades, we are dedicated to servicing all of your home improvement and maintenance needs. Whether you are looking to build a seamless home addition, transform a room into your dream space, or complete essential repairs, our expert team delivers reliable craftsmanship you can trust.\nContact us today to schedule your complimentary in-home consultation and estimate.

Avatar for The Window Source of New Hampshire
The Window Source of New Hampshire
4.7(
29
)
Egress Window - Install

Serving Portsmouth, NH and surrounding areas

In business since 2013

Free estimates

Warranties offered

"Craig the installer did a great job. I was pleasantly surprised by how sturdy the windows were - i picked window source's mid-tier level window. The day after my windows were installed the first storm of the season (snow, rain & ice) arrived and the windows completely performed as they should. I never realized what in eyesore my old windows were until i had these installed. i cant even tell how the wrapping on the windows improved the look of my house! I would definitely recommend window source & i did to a family member. Also, their quote process was quick, 1/2 hour to get a price. Window Source wasn't on my radar while i was requesting quotes on angie's list but they came up as a recommendation & i can't tell you how glad i am I hired Window Source to install all my new windows. A friend had windows installed by a popular chain & Window Source beat the quality and look hands down! If you are like me nervous about hiring a contractor you really know nothing about - i am here to tell you will be happy you hired Window Source. Thank you window source for making my 55 year old house look new!!!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+12

Recommended by96%of homeowners
Broken Glass Company
4.3(
12
)
Egress Window - Install

Serving Portsmouth, NH and surrounding areas

In business since 2017

Free estimates

Credit card accepted

"As an architectural designer and project manager, I was very pleased with David Ball's prompt response to my request for a shower glass solution for a custom master bathroom we were completing on behalf of a client in Portland, ME. As soon as the ceramic tiles and marble were set, Dave arrived and placed two fixed glass panels to create the clean line open shower look I was planning for. The job was done on time and under budget. Subcontractors like Dave Ball make our work so much easier! Five stars!!"
Response time12 hrs
Recommended by100%of homeowners
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FAQs for egress window installation projects in Portsmouth, NH

Yes, installing egress windows typically requires a building permit because it involves structural changes and safety considerations. If excavation is needed for a window well, additional permits may be required. Contact your local building authority to ensure compliance with all regulations.

The primary installation of an egress window usually takes about three days. Additional time may be needed for excavation, wall cutting, and finishing work, especially if structural modifications are involved. The timeline also depends on the window's availability and proper sizing.

Yes, improper installation can compromise your home's foundation and structural integrity. To prevent costly damage and ensure safety, it's essential to hire a qualified professional who can install the egress window correctly.

Yes, building codes require egress windows or doors in finished basements designated as habitable spaces. Every living area must have an approved exit point for safety and emergency egress. Unfinished basements used solely for storage may be exempt.

The Portsmouth, NH homeowners’ guide to egress window installations

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