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

Tim Gagnon Frame to Finish
4.7(
35
)
Addition to Existing Structure - Build

Serving Peterborough, NH and surrounding areas

Approved

In business since 2008

Free estimates

Customers say: Quick response

"Tim worked on our cottage in NH. We live in NC and Tim did the work while we were in NC. Although 700 miles separated us, the job went magnificently well as Tim kept us informed of changes that were necessary and made proper decisions in regards to additional cost and work. Overall, I would recommend Tim to all who would like quality work."
closet
mantel living room
stairs and entertainment center
new mantel
new bedroom

+22

Response time1 day
Recommended by84%of homeowners
Avatar for Edgewood Drywall Services
Edgewood Drywall Services
4.8(
41
)
Addition to Existing Structure - Build

Serving Peterborough, 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 Top End Builders
Top End Builders
5.0(
5
)
Addition to Existing Structure - Build

Serving Peterborough, 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

13 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 Peterborough, NH and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Matt provided exceptional quality service and was very friendly and informative. I would definitely recommend him for the wide range of home repairs / improvements he is able to provide."
Before
During
Wrapping up
Finished
Prep

+34

Response time2 days
Response rate95%
Recommended by84%of homeowners
Sonart Construction Corp.
2.3(
7
)
Addition to Existing Structure - Build

Serving Peterborough, NH and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"I recently had my shingle roof replaced and I?m very happy with the results. The team was professional, punctual, and completed the job efficiently. The quality of the work is excellent, and the new roof looks great. They kept the work area clean and communicated well throughout the process. I would definitely recommend them to anyone needing a roof replacement."
Avatar for Reconstruct Realty LLC
Reconstruct Realty LLC
New to Angi
Addition to Existing Structure - Build

Serving Peterborough, NH and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

Reconstruct Realty LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

Response time7 hrs
Response rate100%
Avatar for Jackson and Company Foundation Repair
Jackson and Company Foundation Repair
4.5(
20
)
Addition to Existing Structure - Build

Serving Peterborough, NH and surrounding areas

In business since 1985

Free estimates

Emergency services offered

"Great! Richard had a cancellation and asked if he could come in that time slot. We were delighted. He was prompt. Richard is knowledgeable, explained everything he was going to do, was very professional and friendly. He worked both inside and outside. The job looks very solid. Our realtor came over a few days later ( we are selling our house in the spring) and was very impressed with the workmanship. I would highly recommend Jackson Foundation Repair."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+4

Recommended by82%of homeowners
Avatar for A Pineo Construction
A Pineo Construction
5.0(
5
)
Addition to Existing Structure - Build

Serving Peterborough, NH and surrounding areas

In business since 1999

Free estimates

Emergency services offered

"They built two great projects for me so far. In 2019 they built a 14x12 chicken run onto my existing Reeds Ferry Shed 14x20 coop. In 2022 they built a 34x30 garage addition with apartment above."
Road Groton Massachusetts
Before
A Pineo Construction works in Rain or Snow, or Snow Making : )
Tiered Septic System for Condo Units
Tiered Septic System for Condo Units

+33

Response time1 day
Response rate100%
Recommended by100%of homeowners
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FAQs for addition to existing structure building service projects in Peterborough, 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 Peterborough, 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.