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Find Addition to existing structure builders in Portsmouth

Avatar for Perry Brothers Construction
Perry Brothers Construction
5.0(
184
)

Serving Portsmouth, 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
3 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Norman Builders
Norman Builders
4.8(
84
)

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"Norman Builders was a great partner in our home addition project. It's no surprise to anyone that construction projects encounter hiccups and this one was no exception. Norman Builders, however, was very responsive, competent in resolving unanticipated conditions, and communicated every step of the way. Their attention to detail was meticulous and they clearly took pride in their work. We highly recommend them!"
New Kitchen
New Master Bathroom
Exterior Under Construction
The Addition from the Exterior
2nd Floor Master Bathroom

+53

1 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for MMP Construction Inc
MMP Construction Inc
4.7(
191
)

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"I was happy with the work done by Matt and his crew on my roof replacement. Of the highlights, Matt excelled at customer service. I had spoken to several contractors during the bidding process and Matt clearly stood out as someone to provide detailed guidance and credible advice on the project. As my roof was being replaced as part of an insurance claim, Matt took the initiative to bring in additional contractors to build out an initial estimate for all of the work, to get things moving with the insurance company, which was a huge help. Matt took things a bit further and spoke directly with the insurance company regarding details of my roof and other work that was not started yet and was able to help me gain significantly more coverage than originally provided! Matt was always available for questions and promptly returned my calls and emails throughout the process. In one instance, I had requested that they hold off on installation of the ice and water shield one day due to the cold temperatures. Matt agreed to this with no hesitation, even though it required them to work the weekend to complete the work. Per my inspection throughout the roofing process and after, everything looked good and I found only a few things that were missed, which Matt took care of immediately. Some mess and nails were left behind after the work, but it was fairly minimal. Due to the scale of the work, Matt / MMP did bring in subcontractors to perform much of the standard roofing work. I would have appreciated if MMP was more forthcoming about this earlier in the process. MMP had someone from their team on-site for the entire process, but I think that they could have kept a closer eye on the sub-contractors work. For the more challenging tasks, Matt came out and did the work himself. He and his team worked hard throughout the process, working long hours and through the weekend to get everything completed in a timely manner and reduce risk of water leakage in case of rain. I will certainly consider MMP for future work on my house."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+154

1 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Tejada's Remodeling Inc
Tejada's Remodeling Inc
4.8(
24
)

Serving Portsmouth, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Highly recommended. Jose and Cesar were great. They were reliable and their work was excellent. They completely remodeled our condo including 4 bathrooms, floors, fireplace/hearth, etc. It was a big job and they worked with us to make sure everything came out exactly the way we wanted. The cost was very reasonable."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Response time1 day
8 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for NH Projects LLC
NH Projects LLC
5.0(
19
)

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2021

Free estimates

Customers say: Quick response

"Lenny and Nick exceeded all expectations - building a theatre in my basement. The attention to detail, knowledge and professionalism are all second-to-none with these guys. I would highly recommend NH projects to anyone looking for high quality work at a fair price."
Our Work
Our Work
Our Work
Our Work
Our Work

+8

Response time5 hrs
2 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Benchmark Home Improvements
Benchmark Home Improvements
4.9(
107
)

Serving Portsmouth, NH and surrounding areas

Approved

In business since 1997

Free estimates

Warranties offered

"Benchmark Home Improvements changed the way our home looks, our new beautiful kitchen has been simply an amazing transformation. Lee has been a great help in designing our new kitchen and together with his team they did a wonderful job building the kitchen to that design. They went way beyond their contractual obligations to accommodate our requests. We would wholeheartedly recommend Benchmark Home Improvement for any of your home improvement projects"
Green Building ECO-CERTIF
Green Building ECO-CERTIF
Green Building ECO-CERTIF
Green Building ECO-CERTIF
Green Building ECO-CERTIF

+407

Response time2 days
6 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Chris Johnson Custom Builder
Chris Johnson Custom Builder
5.0(
9
)

Serving Portsmouth, NH and surrounding areas

Approved

In business since 1997

Free estimates

Warranties offered

"It went great. Chris built our custom home exactly to our specifications. We lived out of state for the entire build. Chris maintained open lines of communication with us so that we always knew what was going on. His work is impeccable. His attention to detail resulted in our dream home being exactly what we expected when we hired him. His group of subcontractors were great throughout the entire process. I have not spoken to anyone in the area that has anything but praise for Chris and his work ethic. Chris came highly recommended by a number of people and I would carry on that tradition and recommend Chris Johnson for any construction project from a remodel to building a new home from the ground up. I would certainly use Chris again for any future construction needs."
Donica road
Cappy’s lane York Maine
Donica road
Cappy’s lane York Maine
Donica road

+45

4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for The Hurlburt Group, LLC
The Hurlburt Group, LLC
4.7(
29
)

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2007

Free estimates

Small jobs welcome

"Dave and his team did a great job in building the additional closet/office space for us. Steve from his team was very professional and skilled. Job was completed on time and the cost was reasonable."
basement subfloor
garage door
new beam header
garage door
closet

+77

Response time3 days
Response rate88%
9 neighbors recently requested a quote
Avatar for True North Contracting
True North Contracting
4.8(
82
)

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2005

Free estimates

Small jobs welcome

"pleased with his work, timely first class, he built our home and we're ecstatic. His son installed our cabinets and bathroom tile and they both look great. cabinets and bathroom tile was great."
Roof
Kitchen Reno
Finish
Ready for Grout
 Finished

+66

Response time4 hrs
3 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Pro Warrior Construction
Pro Warrior Construction
5.0(
29
)

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"It went fantastic, Yann is an absolute pleasure to work with and extremely knowledgeable his company, pro warrior painting and construction not only did the roof and siding on my house but I also had interior work done which also came out amazing, the workmanship is top notch, the price was spot on, im so very very happy with the way everything came out, perfect. I'd 100% recommend pro warrior painting and construction for any of your building needs."
Matt Klein
Matt Klein
Matt Klein
Response time4 days
6 neighbors recently requested a quote
Recommended by79%of homeowners
Showing 1-10 of 29
FAQs for addition to existing structure building service projects in Portsmouth, 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 Portsmouth, 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.