Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in Amherst, 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 Amherst

Avatar for iCornerstone, Inc.
iCornerstone, Inc.
4.9(
48
)

Serving Amherst, NH and surrounding areas

Approved

In business since 1988

Customers say: True professional

"My wife and I were looking to have an addition built on our 2 bedroom / 1 bath home back in the winter of 2022. After a phone conversation with Richard, we decided to have him come out to the house. He was very clear with the iCornerstone process, and the benefits of using this process. He is meticulous in measuring and understanding the existing structure. There are no guesstimates and all cost projections are based on the actual materials and labor needed to complete the work. Having such clarity regarding costs before any work begins is not something I've seen in this industry prior to this experience. It was certainly a welcome change. We now have plans for a home addition and complete control over the project. We decide the scope and can customize the plan to our budget. We are grateful to have worked with Richard, and highly recommend him!"
Entertainment center
Entertainment center
Architectural details
computer room left
computer room right

+11

Response time9 hrs
Response rate95%
Recommended by93%of homeowners
Avatar for MMP Construction Inc
MMP Construction Inc
4.7(
191
)

Serving Amherst, 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
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 Amherst, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Tejada’s remodeling will go above and beyond to make sure you are happy with the services provided. They were flexible and worked around our schedule. I already have them scheduled for more work this month! They do it all! Thank you Tejada’s!!!"
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 The Smart House, LLC
The Smart House, LLC
4.8(
19
)

Serving Amherst, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Warranties offered

"We needed to add a shower where our laundry closet existed on the first floor. That required moving the laundry to the basement and turning the closet into a functional shower. We searched high and low for help. Most contractors never replied back or no showed their quote appointment. Paul and Lindsey responded quickly and professionally. They weren’t our cheapest or most expensive quote, but after meeting with Paul it was an easy choice. On time, polite, professional and amazing communication. He took what I wanted and made it happen within weeks. There were questions/concerns during the process and he addressed them quickly and was able to deliver what was promised- a beautiful tile shower and a functional basement laundry room. We are currently discussing other home improvements."
Response time7 hrs
Response rate98%
1 neighbors recently requested a quote
O'Sullivan Construction and Property Management
5.0(
8
)

Serving Amherst, 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
25 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for St. James Construction, LLC
St. James Construction, LLC
5.0(
5
)

Serving Amherst, NH and surrounding areas

Approved

Super Service Award Winner

Free estimates

Warranties offered

Customers say: Quick response

"My deck is perfect, exactly what I was looking for! The workmanship & quality is a 10+. Corey offers ideas you may not have thought of, explains different scenarios, product types, pros & cons, answers all questions you may have, extremely responsive and honest, does what he says he's going to do, and works with you on your schedule. I wouldn't even bother checking other contractors out. I'm now having my basement redone with no worries at all."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+7

2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Ricci's Painting
Ricci's Painting
4.9(
19
)

Serving Amherst, NH and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Bruno and his crew are excellent. They did a great job painting my ceilings. I will be rehiring them again to paint other areas of my house shortly. Canâ t say enough good things about Bruno and his crew"
INTERIOR AND EXTERIOR
INTERIOR AND EXTERIOR
INTERIOR AND EXTERIOR
INTERIOR AND EXTERIOR
INTERIOR AND EXTERIOR

+121

Response time9 hrs
Response rate92%
6 neighbors recently requested a quote
Avatar for Freedom Framing and More, LLC
Freedom Framing and More, LLC
4.5(
13
)

Serving Amherst, NH and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Matt was very easy to work with and communicated often on the pace of the project. I would highly recommend him on any project you have and I would not hesitate to hire him to do any work around my home."
Before
During
Wrapping up
Finished
Prep

+34

Response time2 days
Response rate95%
2 neighbors recently requested a quote
Avatar for BMC Builders LLC
BMC Builders LLC
5.0(
3
)

Serving Amherst, NH and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"Bruce is always honest and very fairly priced. Stays true with the estamint I hired him for tree felling and 2 new deck builds on the front and back of my house. I couldn't imagine having another carpenter do work on my house. He makes himself available and keeps you updated on what ever project he's doing. 100% recommend BMC Builders! You won't be disappointed!"
Over the years
Over the years
Over the years
Over the years
Over the years

+18

Response time1 day
15 neighbors recently requested a quote
Recommended by66%of homeowners
Showing 1-10 of 17
FAQs for addition to existing structure building service projects in Amherst, 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 Amherst, 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.