Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in Epsom, 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.

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

Avatar for iCornerstone, Inc.
iCornerstone, Inc.
4.9(
58
)
Addition to Existing Structure - Build

Serving Epsom, 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 time8 hrs
Response rate100%
Recommended by91%of homeowners
Avatar for MMP Construction Inc
MMP Construction Inc
4.6(
222
)
Addition to Existing Structure - Build

Serving Epsom, 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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+154

Recommended by89%of homeowners
Avatar for Horsman Builders
Horsman Builders
4.3(
23
)
Addition to Existing Structure - Build

Serving Epsom, NH and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"When you find a great contractor, don’t let them go. ;). I hired Tim to build a screen porch under my deck but added several projects as I recognized the high quality of work and attention to detail from his crew. In addition to the screen porch, they built a deck extension - so nice that I decided to have them replace the existing deck, installed a basement slider and replaced the door, installed a new fence and built a shed. Tim was responsive, open, honest and receptive of my requests and additions during the project. Great experience working with Tim and his crew: Dan, Brian, Eddie and Ben. Great job on all the work - I’ve received many compliments from neighbors and guests on the work you did! I can’t recommend Tim and his crew enough."
General Remodeling Project
General Remodeling Project
Additional Photos
Additional Photos
Additional Photos

+4

Response time7 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for NH Projects LLC
NH Projects LLC
5.0(
20
)
Addition to Existing Structure - Build

Serving Epsom, 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
Response rate87%
1 neighbors recently requested a quote
Avatar for True North Contracting
True North Contracting
4.4(
96
)
Addition to Existing Structure - Build

Serving Epsom, 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
14 neighbors recently requested a quote
Recommended by93%of homeowners
Precision Works Home Remodeling, LLC
4.7(
15
)
Addition to Existing Structure - Build

Serving Epsom, NH and surrounding areas

Approved

In business since 2003

Free estimates

Customers say: Quality work

"We had a wonderful experience with Steve on our bathroom remodel. We are fairly new homeowners and this was our first experience with a contractor, and we wouldn't change a thing. He did literally everything - installed a tub, did some beautiful shower tile work, plumbing, painting, electrical work, replaced drywall, window replacement, floor install, and more. Not only was the quality of work impeccable, he made sure to keep in constant contact regarding any unanticipated project changes and how they would impact the schedule and our budget. He showed up on time, kept the space clean, and simply did what he said he would do, when he said he would do it. I'm not sure you could ask for more. We look forward to having him back for other projects."
1/2 Bath Remodel
Flooring
Flooring
Flooring
Flooring

+117

1 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Magic Frog Carpentry & Woodworks
Magic Frog Carpentry & Woodworks
5.0(
11
)
Addition to Existing Structure - Build

Serving Epsom, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Warranties offered

"Very professional. Timely responses with any questions or concerns I had. Was very accommodating when changes or additional work was requested for the project. Would highly recommend for any household projects."
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%
12 neighbors recently requested a quote
Avatar for Edgewood Drywall Services
Edgewood Drywall Services
4.8(
41
)
Addition to Existing Structure - Build

Serving Epsom, 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

Recommended by60%of homeowners
...
Showing 1-10 of 290
FAQs for addition to existing structure building service projects in Epsom, 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 Epsom, 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.