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Find Addition to existing structure builders in Amherst

Avatar for iCornerstone, Inc.
iCornerstone, Inc.
4.9(
57
)

Serving Amherst, NH and surrounding areas

Approved

In business since 1988

Customers say: True professional

"For our home addition/renovation we are very grateful to have found Richard Connolly and his site iCornerstone. Our vision was a Two-story + basement + livable attic space home addition which would provide significant practical square footage to our existing house and integrate seamlessly with it. We interviewed a number of general contractors but we were overall a bit uncomfortable after the interviews due to gaps in transparency regarding how costs were calculated and how timelines were established, resulting in some lack of confidence. We happened upon Richard’s iCornerstone site via Angies. Richard provided an extremely transparent and detailed description of his unique and practical process, which delivered a set of superb designs along with a truly logical, transparent, and honest listing of costs, both materials and labor, at all stages, and how those costs were derived. Richard also delivered transparency on timelines, and he provided recommendations for all the needed tradespeople that he had historically a close working relationship with; alternatively we could have selected tradespeople of our own choosing. Richard and his process gave us the utmost confidence for proceeding. We proceeded with our renovation under Richard’s guidance and his own crew and the entire process went according to plan with excellent communication, rapport, and confidence at all stages from excavation to final finish work. Transparency, confidence-building, dependability, highly knowledgeable, customer-friendly, and results-oriented are all terms we would use to describe Richard and the iCornerstone process. We strongly recommend Richard for anyone contemplating any home renovation or home addition, large or small."
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
4.6(
222
)

Serving Amherst, 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."
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+154

1 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Tejada's Remodeling Inc
Tejada's Remodeling Inc
4.8(
30
)

Serving Amherst, 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
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+6

Response time1 day
8 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for The Smart House, LLC
The Smart House, LLC
4.4(
21
)

Serving Amherst, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Warranties offered

"The team worked steady ,effectively ,with attention to detail . The greenhouse, erected on the foundation was put together with deliberate care I am verry pleased with the results"
Response time7 hrs
Response rate98%
1 neighbors recently requested a quote
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: True professional

"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
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+7

1 neighbors recently requested a quote
Recommended by100%of homeowners
O'Sullivan Construction and Property Management
4.3(
12
)

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
33 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for NIGHTHAWK CARPENTRY AND REMODELING LLC
NIGHTHAWK CARPENTRY AND REMODELING LLC
3.9(
14
)

Serving Amherst, NH and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"Great. From the beginning, Christian has been patient, and communicates well. He answered all of my questions before and made sure I understood everything. He listened to what my needs and wants were.Overall great guy."
Remodeling - General Project
Remodeling - General Project
Remodeling - General Project
Builders - Homes Project
Remodeling - General Project

+49

Response time2 days
Response rate94%
9 neighbors recently requested a quote
Avatar for Freedom Framing and More, LLC
Freedom Framing and More, LLC
4.3(
14
)

Serving Amherst, NH and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Matt provided exceptional quality service and was very friendly and informative. I would definitely recommend him for the wide range of home repairs / improvements he is able to provide."
Before
During
Wrapping up
Finished
Prep

+34

Response time2 days
Response rate95%
1 neighbors recently requested a quote
Avatar for D.A. Kinsella Company
D.A. Kinsella Company
3.6(
52
)

Serving Amherst, NH and surrounding areas

Approved

In business since 1990

Free estimates

Small jobs welcome

"We had the pleasure of working with D. A. Kinsella Company to develop concept designs for a new home addition. Their architectural team was quick, professional, and came up with many detailed ideas to help ensure that we were happy with the design. David successfully coordinated with the city to determine project requirements early in the design phase, which was very helpful and saved us valuable time and effort. We highly recommend David to any homeowner considering a home redesign or new addition...!"
Response time4 days
19 neighbors recently requested a quote
Recommended by76%of homeowners
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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.