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Find Addition to existing structure builders in Londonderry

Avatar for Anything & Everything Home Improvement LLC
Anything & Everything Home Improvement LLC
4.6(
70
)
Addition to Existing Structure - Build

Serving Londonderry, NH and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"Jesse and his veteran crew of subs built a large log home for us. These are tricky homes to build. Any unexpected events were handled professionally. We plan to hire him again to renovate the unfinished basement."
Exterior transformation
Full exterior
Full exterior
Full exterior
New decks and porches

+14

1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for O'Regan Construction
O'Regan Construction
4.5(
37
)
Addition to Existing Structure - Build

Serving Londonderry, NH and surrounding areas

Approved

Super Service Award Winner

In business since 1988

Free estimates

Customers say: Quick response

"I had just moved into my current home and didn’t really know anyone just went on Angi and read the reviews for O’Regan construction and I am so glad I did super friendly and knowledgeable , answered all my Questions no matter how big or small I had an existing screened in porch that wanted as a four season room it came out amazing absolutely would recommend them to anyone"
Completed projects
Completed projects
Completed projects
Completed projects
Completed projects

+254

Response time2 days
13 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for Horsman Builders
Horsman Builders
4.3(
23
)
Addition to Existing Structure - Build

Serving Londonderry, NH and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"Tim was fantastic. We live out of state and we felt so comfortable and confident that he and his staff could handle the whole house renovations. Tim went above and beyond his role of contractor. He understood the issues that we needed to get the house in shape and quickly to get it sold. We would not hesitate to hire him again."
General Remodeling Project
General Remodeling Project
Additional Photos
Additional Photos
Additional Photos

+4

Response time7 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Handy and Some
Handy and Some
4.6(
35
)
Addition to Existing Structure - Build

Serving Londonderry, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Warranties offered

"Sean and his crew are truly Professionals within this Industry. Courteous, Friendly, Responsive and produce Excellent Quality Workmanship. By far, Sean and his crew are the best I have ever had the opportunity to hire for a major construction project that resulted in a comfort level knowing that everything was being handled properly. Construction is a challenging venture when putting on an Addition to an existing dwelling. There are many obstacles and challenges that can be faced throughout the project and within the home. Sean and his Team went over and above and addressed each challenge professionally and with timely resolution. I couldn't ask for any better service and results! The addition came out beautiful, I have an awesome Garage and my Wife is ecstatic with her new Mud Room and Pantry! I would recommend Hand and Some for any project that you may need."
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 Londonderry, NH and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Xavier and his team were excellent to work with. No BS on the quote, permit, plans, etc....They showed up on the day they said they would and even helped me take my grills off the existing deck before tearing down (they put it back up at the end too!). The inspector that came out even inspected on how well built the deck was. XCC built us a beautiful trex deck that our family will be able to enjoy for years. Thank you Xavier and team!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+78

Response time4 days
Recommended by86%of homeowners
Precision Works Home Remodeling, LLC
4.7(
15
)
Addition to Existing Structure - Build

Serving Londonderry, NH and surrounding areas

Approved

In business since 2003

Free estimates

Customers say: Quality work

"This is the 2nd job we has Steve do for us. The was a min bathroom renovation and also kitchen backsplash. Bathroom came out great. He walled off a second door to access the bathroom, ripped out old tile, and put down new tile and installed a new vanity. Very happy with the finished product. Steve also did the backsplash in the kitchen. It came out perfect. I would definitely recommend Steve for any home improvement projects you may have."
1/2 Bath Remodel
Flooring
Flooring
Flooring
Flooring

+117

2 neighbors recently requested a quote
Recommended by90%of homeowners
Peter Rousseau
4.8(
90
)
Addition to Existing Structure - Build

Serving Londonderry, NH and surrounding areas

Approved

In business since 2009

Free estimates

Small jobs welcome

"Peter did a fantastic job from removing the old outside stairs from the second floor to installing new including a deck on the lower level. He was very consultative in helping to pick the right materials and his suggestions made the whole project fall into place His attention to detail is excellent. Even the building inspector commented job well done on the permit. He showed up every day on time and stayed regardless of the weather to complete the job in a timely manner. Peter is an excellent craftsman and does high quality work. I HIGHLY recommend him. Cliff B Methuen Ma"
New deck
New deck
New deck
New deck
New deck

+91

Recommended by98%of homeowners
Avatar for Quality Construction
Quality Construction
4.6(
13
)
Addition to Existing Structure - Build

Serving Londonderry, NH and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"Phil coordinated and supervised the entire roof repair and shingling of our 200 year old house. He then stripped the clapboards to bare wood, replaced broken clapboards as well as soft wood behind some of them, before applying 3 coats of paint to the entire house. Phil told us up front that he took his time to do it right and would not be applying paint within three days of it raining., to ensure there would be no moisture under the paint. The work was done meticulously, with care taken to avoid any spillage or leftover material. I wish I could provide some photos to show his work!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+35

Response time2 days
4 neighbors recently requested a quote
Recommended by92%of homeowners
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FAQs for addition to existing structure building service projects in Londonderry, 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 Londonderry, 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.