Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in Fremont, NH

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Addition to existing structure builders in Fremont

Avatar for MMP Construction Inc
MMP Construction Inc
4.6(
222
)
Addition to Existing Structure - Build

Serving Fremont, NH and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"We had a very small roof area need to be repaired. I sent request to multiple company to give a service quote. Few of them sent me replies and stated that they are too busy to come. Matt of MMP Consturction's contacted me promptly, scheduled an on-site visit and gave us a quote right away. The work was then scheduled and finished quickly. Matt did great job on reaching out, effective communication, and always arriving on-time. He also gave an evaluation on our roof condition. Also, Eric and Don did excellent job on finishing the project. They are all very polite, knowledgeable, and showed their professionalism. We would like to express our sincere appreciation to Matt and his crew. We are very grateful for having them arriving on-time before the winter storm to prevent potential damage of the house. From their react, we see a warm heart. No job is big or small, all jobs are equally important. Understanding the difficulties of others, for the people, been appreciated by the people. Thank you again for your high quality service. We definitively recommend MMP Construction Inc. to anyone for any related home project."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+154

1 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Horsman Builders
Horsman Builders
4.3(
23
)
Addition to Existing Structure - Build

Serving Fremont, NH and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"When you find a great contractor, don’t let them go. ;). I hired Tim to build a screen porch under my deck but added several projects as I recognized the high quality of work and attention to detail from his crew. In addition to the screen porch, they built a deck extension - so nice that I decided to have them replace the existing deck, installed a basement slider and replaced the door, installed a new fence and built a shed. Tim was responsive, open, honest and receptive of my requests and additions during the project. Great experience working with Tim and his crew: Dan, Brian, Eddie and Ben. Great job on all the work - I’ve received many compliments from neighbors and guests on the work you did! I can’t recommend Tim and his crew enough."
General Remodeling Project
General Remodeling Project
Additional Photos
Additional Photos
Additional Photos

+4

Response time7 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for Tejada's Remodeling Inc
Tejada's Remodeling Inc
4.7(
31
)
Addition to Existing Structure - Build

Serving Fremont, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"These guys did a remarkable job. They put in a full days work to make a pool deck that had long been neglected look like new again! I highly recommend them to anyone that needs power washing. They did not miss a spot! Really nice guys, hard workers, very respectful!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Response time2 days
Response rate100%
12 neighbors recently requested a quote
Avatar for Chris Johnson Custom Builder
Chris Johnson Custom Builder
5.0(
9
)
Addition to Existing Structure - Build

Serving Fremont, NH and surrounding areas

Approved

In business since 1997

Free estimates

Warranties offered

"Chris did a great job with our remodel. He created a 4 season room, and remodeled a kitchen and bathroom and added built-ins to our mudroom. He made sure he understood what we wanted and was clear about timelines and cost. Would not hesitate to reach out to Chris again for work."
Donica road
Cappy’s lane York Maine
Donica road
Cappy’s lane York Maine
Donica road

+45

7 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Pro Warrior Construction
Pro Warrior Construction
5.0(
29
)
Addition to Existing Structure - Build

Serving Fremont, NH and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Working with Pro Warrior Construction on our enclosed porch was a fantastic experience. Yann, the owner, was hands-on, professional, and made the entire process smooth from day one. He kept us informed, stayed on schedule, and made sure every detail was handled properly. The craftsmanship and overall quality of the build really impressed us. The enclosed porch turned out beautiful and has become one of our favorite spaces in the house. It’s clear that Yann and his team take pride in their work and genuinely care about delivering great results. We’re extremely happy with the outcome and would confidently recommend Pro Warrior Construction to anyone looking for dependable, high-quality construction services."
Matt Klein
Matt Klein
Matt Klein
Response time9 hrs
17 neighbors recently requested a quote
Recommended by79%of homeowners
Avatar for Xcc Pro Builders LLC
Xcc Pro Builders LLC
4.5(
15
)
Addition to Existing Structure - Build

Serving Fremont, NH and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"I’m generally not one to write reviews however when the experience far exceeded my expectations I believe in giving credit where credit is due, especially when it comes to small business owners. When I began the process of getting quotes to build my 2 car detached garage back in March, the most important factors for me in selecting a contractor were price, competence/quality of work, and trustworthiness (not necessarily in that order). Xavi, the owner of Xcc delivered on all three from start to finish. From the original quote which was fully itemized to show every last detail of the build to the final piece of trim installed, Xavi’s commitment to the job and open and honest communication style was exceptional. Xavi is a perfectionist, so if something isn’t 100% he won’t rest until it meets his standards - his crew is fantastic as well. Entering into a project of this size and cost can be a little intimidating given the amount of risk assumed by the homeowner and potential what if scenarios that can play out, ultimately will the builder will do what he says he will in the agreed timeframe? Xcc Builders will because Xavi is man of character who takes great pride in his work and fully understands the impact integrity has on his business’s reputation and long term success."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+78

Response time4 days
2 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Live Free Remodeling LLC
Live Free Remodeling LLC
5.0(
12
)
Addition to Existing Structure - Build

Serving Fremont, NH and surrounding areas

Approved

In business since 2025

Credit card accepted

Offers commercial services

We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a locally owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today, and we look forward to working with you!

Man Cave
Man Cave
Man Cave
Man Cave
Man Cave

+11

25 neighbors recently requested a quote
Avatar for Prime Developments
Prime Developments
5.0(
5
)
Addition to Existing Structure - Build

Serving Fremont, NH and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

Whether you are looking to build a custom home from the ground up or expand your current space with an addition, Prime Developments specializes in bringing your unique vision to life. As a leading custom home builder, we design and craft stunning custom homes and high-quality new construction homes tailored to your lifestyle. We focus on budget-friendly new homes as well as high-end luxury custom homes. If you aim to maximize your property’s value and footprint, we also excel in seamless additions to existing homes, custom garages, and in designing modern accessory dwelling units (ADUs). From concept to completion, we combine premium craftsmanship with smart design to create spaces you’ll love for a lifetime.

Project Photos
Project Photos
Project Photos
Project Photos
Project Photos

+2

1 neighbors recently requested a quote
O'Sullivan Construction and Property Management
4.3(
12
)
Addition to Existing Structure - Build

Serving Fremont, NH and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"We hired this company to remove old exterior window shutters and install new exterior window shutters. They were extremely responsive, prompt, friendly, reliable, and very professional. They were very easy to work with. We would absolutely recommend them without hesitation. We plan to hire them again for future projects."
Small back deck for grilling w french doors and sl
Before
Detail
Porch Swing and Fans
Complete

+70

Response time2 days
19 neighbors recently requested a quote
Recommended by100%of homeowners
...
Showing 1-10 of 244
FAQs for addition to existing structure building service projects in Fremont, 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 Fremont, 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.