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Find Addition to existing structure builders in Portsmouth

Brunson Construction

5.00(
2
)
Approved Pro

Brunson Construction

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor Home Improvement services that are customizable to each individual project. We specialize in Additions and Kitchen Remodels, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Dana Brunson is not only a craftsman at his trade but he stays on top of new technologies people need in their homes."

Bill R on January 2020

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor Home Improvement services that are customizable to each individual project. We specialize in Additions and Kitchen Remodels, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Dana Brunson is not only a craftsman at his trade but he stays on top of new technologies people need in their homes."

Bill R on January 2020


JDL Building & Remodeling of New England, LLC

4.89(
11
)
Approved Pro

JDL Building & Remodeling of New England, LLC

4.89(
11
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

We are a full service General Contracting Company who can manage your project from conception to completion. This includes design, permitting and construction. Athough we specialize in providing turn-key services, we can also be contracted to perform any trade service or scope or work. Jason Lajeunesse, owner of JDL Building & Remodeling of New England, LLC, is a second generation building contactor with over 10 years of general contracting and trade experience. This experience and our strong Estimating and Project Planning Skills allow us to deliver our projects on budget and schedule.

"If you are looking for someone who is really going to work with you then JDL is for you. Jason tries extremely hard to listen to all requests and plans you might have. I would call him again if we had another project going on."

James C w on August 2011

We are a full service General Contracting Company who can manage your project from conception to completion. This includes design, permitting and construction. Athough we specialize in providing turn-key services, we can also be contracted to perform any trade service or scope or work. Jason Lajeunesse, owner of JDL Building & Remodeling of New England, LLC, is a second generation building contactor with over 10 years of general contracting and trade experience. This experience and our strong Estimating and Project Planning Skills allow us to deliver our projects on budget and schedule.

"If you are looking for someone who is really going to work with you then JDL is for you. Jason tries extremely hard to listen to all requests and plans you might have. I would call him again if we had another project going on."

James C w on August 2011


Avatar for Shoreline Renovations

Shoreline Renovations

5.00(
12
)
Approved Pro

Shoreline Renovations

5.00(
12
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

Welcome to Shoreline Renovations, We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

"We just had our roof replaced by Cody and his team. Everything from start to finish was done professionally and skillfully. The roof looks great. His team came in, stripped the old roof off, got the job done quickly and cleaned up every single thing that fell in my yard. Amazing crew. Fantastic job."

Sheri O on May 2024

Welcome to Shoreline Renovations, We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

"We just had our roof replaced by Cody and his team. Everything from start to finish was done professionally and skillfully. The roof looks great. His team came in, stripped the old roof off, got the job done quickly and cleaned up every single thing that fell in my yard. Amazing crew. Fantastic job."

Sheri O on May 2024


Aubrey & Son Home Improvement

5.00(
24
)
Approved Pro

Aubrey & Son Home Improvement

5.00(
24
)
Approved Pro
Super Service Award
Customers say: Quick response
3 years of experience
Free onsite estimate

We are 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.

"Job done to highest standards and timely loved working with the crew "

Mark B on December 2025

We are 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.

"Job done to highest standards and timely loved working with the crew "

Mark B on December 2025


Avatar for Norman Builders

Norman Builders

5.00(
76
)
Approved Pro

Norman Builders

5.00(
76
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
10 local quotes requested

We are a full service home building company that has completed residential home construction in over 20 different cities and towns in Massachusetts & New Hampshire. We have a team of engineers, architects, carpenters, plumbers, and electricians that provide top notch quality at competitive pricing. Customer service and responsivneness are a very important part of this company. You will always have a return phone call as soon as possible and our workers take great pride in their work with professionalism and a great attitude. Our projects are completed on time, on budget, and our customer's happiness is our number one priority. If you are looking for an honest contractor with a proven track record, please call or email today!

"From start to finish, it was a great experience and the work that was done on our bathrooms was exceptional - especially the tile work. Communication was great and every detail was looked after. They were very responsive to any issues we had and corrected them quickly without question."

Nancy K on December 2024

We are a full service home building company that has completed residential home construction in over 20 different cities and towns in Massachusetts & New Hampshire. We have a team of engineers, architects, carpenters, plumbers, and electricians that provide top notch quality at competitive pricing. Customer service and responsivneness are a very important part of this company. You will always have a return phone call as soon as possible and our workers take great pride in their work with professionalism and a great attitude. Our projects are completed on time, on budget, and our customer's happiness is our number one priority. If you are looking for an honest contractor with a proven track record, please call or email today!

"From start to finish, it was a great experience and the work that was done on our bathrooms was exceptional - especially the tile work. Communication was great and every detail was looked after. They were very responsive to any issues we had and corrected them quickly without question."

Nancy K on December 2024


Wagner Home Renovation

4.48(
33
)
Approved Pro

Wagner Home Renovation

4.48(
33
)
Approved Pro
Customers say: Quality work
19 local quotes requested
20 years of experience

Remodeling, General Construction and Carpentry. Sole Proprietor, but works with other subcontracted building professionals and uses licensed subcontractors for plumbing and Electrical work. Works hourly and/or provides free estimates, and free consultation. Strong emphasis on quality workmanship, and has solid references. All work is guaranteed accompanied by workmanship warranty specific to the job compleeted. We stand behind our product. Asa is an easy going carpenter who is a serious builder. Family man with three children and a dog. Provides homemade canned goods, jams, and honey for his best clients.

"HVAC system inspection"

Russel C on December 2020

Remodeling, General Construction and Carpentry. Sole Proprietor, but works with other subcontracted building professionals and uses licensed subcontractors for plumbing and Electrical work. Works hourly and/or provides free estimates, and free consultation. Strong emphasis on quality workmanship, and has solid references. All work is guaranteed accompanied by workmanship warranty specific to the job compleeted. We stand behind our product. Asa is an easy going carpenter who is a serious builder. Family man with three children and a dog. Provides homemade canned goods, jams, and honey for his best clients.

"HVAC system inspection"

Russel C on December 2020


Avatar for Magic Frog Carpentry & Woodworks

Magic Frog Carpentry & Woodworks

4.94(
8
)
Approved Pro

Magic Frog Carpentry & Woodworks

4.94(
8
)
Approved Pro
Super Service Award
Customers say: Quick response
20 local quotes requested
11 years of experience

Meeting somebody, being invited into their house, and listening to their ideas of how they would like to transform their space to better suit their needs excites me. It brings me immense pleasure to be welcomed on an idea based visual journey in creating a customized dwelling in order to improve the quality of function in somebody's daily home life. Bringing ideas to fruition is my specialty. With equal enjoyment in making those popcorn ceilings that you've adored for so long disappear in an array of smoothness, gutting the kitchen where nothing seems to fit anywhere, including the cook, and installing cabinets and lights that transform the "heart of the home" into a space you don't want to step out of, or erecting that garage and mudroom to get your cars out of the weather and the clutter out of your foyer. At Magic Frog Carpentry & Woodworks I live in a solutions based mentality.

"From our very first inquiry phone call, Adam was professional, friendly, and able to clearly explain the work in layman's terms — which we really appreciated. He was punctual for every meeting, extremely respectful of our time, and very communicative throughout the entire process. We had a short window to get the work done, and Adam and his team completed everything quickly, efficiently, and with great attention to detail. The quality of their work and the smoothness of the whole experience truly exceeded our expectations. We're planning more renovations around our home and will absolutely be hiring Adam and his team again. Highly recommend Magic Frog Carpentry & Woodworks."

sarah F on December 2025

Meeting somebody, being invited into their house, and listening to their ideas of how they would like to transform their space to better suit their needs excites me. It brings me immense pleasure to be welcomed on an idea based visual journey in creating a customized dwelling in order to improve the quality of function in somebody's daily home life. Bringing ideas to fruition is my specialty. With equal enjoyment in making those popcorn ceilings that you've adored for so long disappear in an array of smoothness, gutting the kitchen where nothing seems to fit anywhere, including the cook, and installing cabinets and lights that transform the "heart of the home" into a space you don't want to step out of, or erecting that garage and mudroom to get your cars out of the weather and the clutter out of your foyer. At Magic Frog Carpentry & Woodworks I live in a solutions based mentality.

"From our very first inquiry phone call, Adam was professional, friendly, and able to clearly explain the work in layman's terms — which we really appreciated. He was punctual for every meeting, extremely respectful of our time, and very communicative throughout the entire process. We had a short window to get the work done, and Adam and his team completed everything quickly, efficiently, and with great attention to detail. The quality of their work and the smoothness of the whole experience truly exceeded our expectations. We're planning more renovations around our home and will absolutely be hiring Adam and his team again. Highly recommend Magic Frog Carpentry & Woodworks."

sarah F on December 2025


Avatar for Xcc Pro Builders LLC

Xcc Pro Builders LLC

4.47(
15
)
Approved Pro

Xcc Pro Builders LLC

4.47(
15
)
Approved Pro
Customers say: Terrific value
30 local quotes requested
12 years of experience

Here at XCC Pro Builders we specialize in producing quality built projects. We have been in business since 2014 and do a wide range of projects additions, decks, siding, new construction, windows, kitchen and bathroom Renos. you name it we will take care of it. We have a great upbeat knowledgeable staff that love what they do.

"We are very impressed with XCC and their team. Our property is very challenging and there was now solid ground where the deck was being installed. XCC built us an amazingly beautiful and solid retaining wall. We absolutely love our deck. They even went ahead and added an extra landing for my elderly mother to take a rest on. We will definitely be calling them again when we are ready to update the deck on the main house."

kristina l on February 2025

Here at XCC Pro Builders we specialize in producing quality built projects. We have been in business since 2014 and do a wide range of projects additions, decks, siding, new construction, windows, kitchen and bathroom Renos. you name it we will take care of it. We have a great upbeat knowledgeable staff that love what they do.

"We are very impressed with XCC and their team. Our property is very challenging and there was now solid ground where the deck was being installed. XCC built us an amazingly beautiful and solid retaining wall. We absolutely love our deck. They even went ahead and added an extra landing for my elderly mother to take a rest on. We will definitely be calling them again when we are ready to update the deck on the main house."

kristina l on February 2025


"I was very impressed working with this company. Communication was superb right off the bat. We went over the job in detail, and it was completed perfectly. The company is very professional and pays attention to every detail. The price was good too! They also cleaned the area thoroughly and my property looks exquisite. Hire this company with confidence. Thank you!"

John C on October 2025

Good work guarantee. I love making our customer's happy

"I was very impressed working with this company. Communication was superb right off the bat. We went over the job in detail, and it was completed perfectly. The company is very professional and pays attention to every detail. The price was good too! They also cleaned the area thoroughly and my property looks exquisite. Hire this company with confidence. Thank you!"

John C on October 2025


Avatar for Horsman Builders

Horsman Builders

5.00(
19
)
Approved Pro

Horsman Builders

5.00(
19
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
27 local quotes requested

We are a full service genral contracting company specializing in all aspects of commercial , residential,industrial construction projects from small to large scale.Most work is performed 'in house" as well as utilizing a tight knit group of sub contractors as needed.

"Company was very good to work with. Great with communication. Needed the job done quite fast and they were able to squeeze me in to get it done for when I needed it."

Jennifer G on November 2023

We are a full service genral contracting company specializing in all aspects of commercial , residential,industrial construction projects from small to large scale.Most work is performed 'in house" as well as utilizing a tight knit group of sub contractors as needed.

"Company was very good to work with. Great with communication. Needed the job done quite fast and they were able to squeeze me in to get it done for when I needed it."

Jennifer G on November 2023

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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.