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

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

Serving Hampton, NH and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"When we started our plan of remodeling, the first thing we did was the complete roof replacement including kitchen vent & duct pipe installation to the roof, and new installation of attic ventilation. MMP did not only completed it just as agreed but also very efficiently. The crews were friendly, professional, and careful. The jobs were carefully managed and implemented effectively. I was impressed by Matt, who is the manager, and he does an outstanding job in managing the crews and the progress of the situation, and the communication was clear and always to the point. We then moved to initiate a search for a contractor of two bathrooms remodeling after completing the roof and attic vent, MMP was one of the many candidates. Matt has had not only the best idea and proposals but also shown an impressive & professional sense of evaluating the project accurately, including the possible structural modification as well as a competitive estimate of the cost of the build. His proposal included a rebuild of a wall of the bathroom to expand another one adjacent to it. Matt accepted to use my schematic design image (made with a software tool) and a spreadsheet list of the fixtures that I created - as many as fifty items including TOTO, Grohe, American Standard, Panasonic, and IKEA - to start the job (later changed some of them due to local plumbing code compliance) After beginning the bathroom remodel project, Matt shared what jobs will be done with us timely and efficiently via text so that we feel comfortable enough in knowing what is going on while living in the house of dust & noise from remodeling. The crews, Zen and Mark, were very courteous, extensively experienced, reliable, and friendly with excellent communication, sometimes with songs of 80s rock music. They ask me when more precise specifications are needed and notified me when they feel advance notifications are required. When a change is necessary due to inspection, they informed me and clarified what and why. I have never felt uncomfortable in living together with the remodel job which has lasted over four months. The completed two bathrooms were stunning, just as I imagined. Matt, Zen, and Mark have proved their strong & thoughtful expertise and lived up with my request patiently until completion. Great job. A home remodeling project cannot be successful without having a trusted partner, and my experience with MMP has led me to be glad to share my confidence that MMP has a credential to become your reliable partner to manage a construction project together."
Additional Photos
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Additional Photos
Additional Photos

+154

Recommended by89%of homeowners
Avatar for Norman Builders
Norman Builders
4.8(
86
)
Addition to Existing Structure - Build

Serving Hampton, NH and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"Planning: We met with three contractors and reviewed small, medium and larger options for our existing space. Ryan from Norman Builders won us over with his confidence, organization and no problem attitude. Of course we had concerns and questions, but it was clear he had worked in colonial houses before. What really won us over was his excitement to do something different with our space. From day one, you could tell every detail of this job mattered as this was a new way to design a traditional space. His timelines, pricing and execution plan was clearly laid out. As a GC, he organized everyone from; designer, permits, dumpsters, demo, electric, plumbing, painters, floors, ceilings, etc. He would do it all. The Job: Completely gut our existing kitchen and formal dining room. Remove a wall and install a steal support beam. He'd then move the kitchen to the old dining space and make the old kitchen a common area with built in desk, bench and bar area. The dining room would then be moved to our four season bonus room. Floors, wall, ceilings all came down. All new plumbing and lighting throughout the first floor. Execution: I mean, its funny to say, but we miss these guys. They practically lived with us for the summer. Couldn’t have been better with our entire family (kids and dog included) Everyone was so respectful of world climate (summer of Corona) and space. Of course you need patience with the process. Timelines were clear and the job finished slightly ahead of schedule. In the End: I mean, wow. When we looked at the blueprint on day one, we legit thought they shared the wrong plans. We couldn’t imagine everything we wanted would fit. They nailed it. It’s a dream space for our family and we couldn’t be happier. We couldn’t recommend Ryan Norman Builders any higher. We can’t wait to have them back to work on the upstairs next."
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 Perry Brothers Construction
Perry Brothers Construction
4.9(
205
)
Addition to Existing Structure - Build

Serving Hampton, NH and surrounding areas

Approved

In business since 1975

Free estimates

Emergency services offered

"Our existing bathroom was a half bathroom with sink vanity, toilet, washer and dryer. We needed to eliminate laundry equipment and add shower and closet in the space that was designated for a washer and dryer, and add outside venting. We also wanted to tile the whole bathroom up to the ceiling. The job was performed excellent and we are very happy with the choices we made. Bill Perry and his crew were working in our house before renovating basement and building rooms there, so we knew that they were the best company for us. They were great giving us advice to improve on things that we wanted done, so they look and work better with a given space. We are very happy again. Thank you Perry Brothers!"
Kitchen and Bath Renovation
Expanded Common Bath And Renovated Master Bath+Mudroom
Garage Transformed Into Spacious Family Room
Kitchen and Bath Renovation
Expanded Common Bath And Renovated Master Bath+Mudroom

+78

Response time5 days
Recommended by98%of homeowners
Wagner Home Renovation
4.5(
34
)
Addition to Existing Structure - Build

Serving Hampton, NH and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Asa is wonderful to work with.  Both times he responded to my initial inquiry the same day.  When he quoted the work, that was the price that the work ended up costing me.  Asa completed the work when he said he would (which was within 2 weeks of my asking him to do so) and it was done well.  The first set of siding he fixed in 2011 is still holding strong.  I will definitely use Asa again when I have other home improvement projects and I highly recommend him.
"
Response time4 days
Response rate100%
2 neighbors recently requested a quote
Avatar for True North Contracting
True North Contracting
4.4(
96
)
Addition to Existing Structure - Build

Serving Hampton, NH and surrounding areas

Approved

In business since 2005

Free estimates

Small jobs welcome

"True North Contacting stepped in as the replacement for a contractor that I hired and then never showed up to do the job. They were prompt, professional and are the only reason that my project was successful. The workmanship was superior, and the detailed tile work they did came out beautiful. There are so many contractors to choose from in these times, but True North is above and beyond the rest. Look no further if you want an honest professional contractor that not only shows up, but also provides amazing workmanship at a fair price."
Roof
Kitchen Reno
Finish
Ready for Grout
 Finished

+66

Response time7 hrs
13 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Magic Frog Carpentry & Woodworks
Magic Frog Carpentry & Woodworks
5.0(
11
)
Addition to Existing Structure - Build

Serving Hampton, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Warranties offered

"Adam, the owner of Magic Frog Carpentry & Woodworks is great to work with. He is responsive via text and phone conversations. He has a lot of skilled people he works with and does a lot of the work as well. When any hiccup comes up he is quick to get it resolved. This past fall I hired him to do a partial remodel of my kitchen (new countertop, new backsplash, new flooring and painting. I was happy with the work and decided to hire Adam again for a tub to shower conversion. I am really happy with the results of both projects. I plan on reaching out to Adam for the next home project."
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%
10 neighbors recently requested a quote
Avatar for Edgewood Drywall Services
Edgewood Drywall Services
4.8(
41
)
Addition to Existing Structure - Build

Serving Hampton, 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

1 neighbors recently requested a quote
Recommended by60%of homeowners
Avatar for New England Contracting and mgmt inc
New England Contracting and mgmt inc
5.0(
4
)
Addition to Existing Structure - Build

Serving Hampton, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Outstanding service. The work that New England Contracting & Management did for us was nothing short of excellent. They quickly gave us a very reasonable quote. All of our remodeling was completed on time, and under budget. We are exceptionally pleased and would hire then again! APPLAUSE ?"
Bathroom vanity
New kitchen
Custom sunroom
Bathroom 1
 CustomTree house deck

+36

Response time1 day
Response rate100%
Recommended by100%of homeowners
Avatar for Live Free Remodeling LLC
Live Free Remodeling LLC
5.0(
12
)
Addition to Existing Structure - Build

Serving Hampton, 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

17 neighbors recently requested a quote
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FAQs for addition to existing structure building service projects in Hampton, 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 Hampton, 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.