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Top-Rated Addition to existing structure builders in East-derry - Updated Nov 2026

Avatar for Norman Builders
Norman Builders
4.8(
86
)
Addition to Existing Structure - Build

Serving East-derry, NH and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"Ryan and crew were awesome... professional, punctual, excellent workmanship, very fair price. Ryan and Warely did exactly what they said, exactly when they said it would be done. Excellent communications throughout the entire process. Will not hesitate to use Norman Construction again - and very happy to provide high recommendation! Norman Construction built two small-ish additions to our home (at the same time!) - the crew was able to perform some very detailed demo immediately adjacent to our living space to get the work completed .... with zero interruptions or issues to our living space."
New Kitchen
New Master Bathroom
Exterior Under Construction
The Addition from the Exterior
2nd Floor Master Bathroom

+53

2 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Handy and Some
Handy and Some
4.6(
35
)
Addition to Existing Structure - Build

Serving East-derry, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Warranties offered

"10/8/21 Sean and his Crew were great to work with. Because of the Covid supply problems, we had a long wait to begin. But we all worked together to make my beautiful kitchen area happen. Don’t waste your time on any other Contractor, because Sean can do it all for you. He is professional, reliable, caring, and he is really so proud to complete your project the way that you want it and make you happy. Most importantly, he was always available by text or phone to answer any concerns you have. I also want to thank his Crew who were all great, hard working guys that helped me cope during the entire project. We had a lot of fun too. Thank you Darren, Jason, Kyle, Ronnie, Larry and Zack. Just give Sean a call. You won’t be disappointed!"
Atkinson kitchen remodel
Atkinson kitchen remodel
Atkinson kitchen remodel
Atkinson kitchen remodel
Atkinson kitchen remodel

+139

Response time2 days
1 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Xcc Pro Builders LLC
Xcc Pro Builders LLC
4.5(
15
)
Addition to Existing Structure - Build

Serving East-derry, NH and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Xavier and his team completely brought my water damaged condo back to better than new condition. He is easy to reach for concerns or questions. The teamwork in removing and replacing my granite counters before/after the hardwood flooring was replaced was something to watch. They deserve higher score than is offered!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+78

Response time4 days
Recommended by86%of homeowners
Avatar for Magic Frog Carpentry & Woodworks
Magic Frog Carpentry & Woodworks
5.0(
11
)
Addition to Existing Structure - Build

Serving East-derry, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Warranties offered

"Very professional. Timely responses with any questions or concerns I had. Was very accommodating when changes or additional work was requested for the project. Would highly recommend for any household projects."
High Ceilings. Inside 45 degree angles done with NO-Coat 450
Tall Foyer. Wrapped beam. Unfinished at post.
Outside corners with bead. Outside 45 degree angles with No-Coat 450.
Deep Skylights with drywall returns.
Before

+11

Response time1 day
Response rate100%
11 neighbors recently requested a quote
Avatar for Edgewood Drywall Services
Edgewood Drywall Services
4.8(
41
)
Addition to Existing Structure - Build

Serving East-derry, NH and surrounding areas

Approved

In business since 2000

Free estimates

Customers say: True professional

Edgewood Drywall Services invites you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. Give us a call for a free estimate!

Projects
Projects
Projects
Projects
Projects

+20

Recommended by60%of homeowners
Avatar for Twin Timber Construction
Twin Timber Construction
5.0(
8
)
Addition to Existing Structure - Build

Serving East-derry, NH and surrounding areas

Approved

In business since 2025

Free estimates

Offers commercial services

"Michael built a single family home in Laconia and his work was thoughtful, tasteful, and overall very well done. He was very responsive and quick to make any requested adjustments. I highly recommend Michael and his team for any renovations, improvements or building a home from start to finish!"
Laconia Custom Home
Laconia Custom Home
Laconia Custom Home
15 neighbors recently requested a quote
Avatar for Top End Builders
Top End Builders
5.0(
5
)
Addition to Existing Structure - Build

Serving East-derry, NH and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

50+ years Combined Exp At Top End Builders, We Specialize in all Residential Building and Remodeling such as, Garage Builds, Custom Deck Builds, Room Additions, Basement Remodeling and more.. We take pride in delivering exceptional craftsmanship, reliable service, and attention to detail on every job. Whether you're looking to expand your space, enhance your property, or bring a custom project to life, we're committed to providing quality results that last. Customer satisfaction is our priority, and we work hard to make every project a great experience from start to finish. Contact Top End Builders today to get started!

2 Story Garage Build
2 Story Garage Build
2 Story Garage Build
2 Story Garage Build
2 Story Garage Build

+79

14 neighbors recently requested a quote
Avatar for Freedom Framing and More, LLC
Freedom Framing and More, LLC
4.3(
14
)
Addition to Existing Structure - Build

Serving East-derry, NH and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"The project is underway and will be completed on time. Mathew is very personable and easy to work with. He has kept me informed about every step thus far. I’m looking forward to having our new space completed and ready to use."
Before
During
Wrapping up
Finished
Prep

+34

Response time2 days
Response rate95%
Recommended by84%of homeowners
Jim Yaratz III
3.2(
30
)
Addition to Existing Structure - Build

Serving East-derry, NH and surrounding areas

Approved

In business since 1988

Free estimates

Warranties offered

"Jim and crew are reliable and knowledgeable. I agree with all that Dana C in Kensington shared. We hired Jim to close in a carport for an addition by seeing the work he was completing for Dana. I then had him remodel an old garage that needed a face lift. We now have Jim building a ranch home for us from the ground up. It is going just as well. If only the prices due to the economy were not so disappointing. Materials are through the roof as a result. Here hoping for some REAL change in 2025 !!!!"
Response time1 day
2 neighbors recently requested a quote
Recommended by77%of homeowners
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Showing 1-10 of 247
FAQs for addition to existing structure building service projects in East-derry, NH

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The East-derry, NH homeowners’ guide to addition to existing structure building services

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