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

Avatar for Horsman Builders
Horsman Builders
4.3(
23
)
Addition to Existing Structure - Build

Serving Franklin, 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 Franklin, 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
Precision Works Home Remodeling, LLC
4.7(
15
)
Addition to Existing Structure - Build

Serving Franklin, 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 Franklin, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Warranties offered

"Adam did an excellent job building our garage from the ground up. He was excellent to work with. Not only was he very professional, so were the subcontractors that he hired. Everyone was knowledgeable, helpful and friendly. Our project required that a road be built to accommodate large trucks in the springtime. The project stayed on track and proceeded smoothly. We were never left wondering “what’s next?” Adam has great communication and stayed in touch to make sure we knew what was coming up and when. I would definitely recommend using Magic Frog Carpentry."
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%
10 neighbors recently requested a quote
Avatar for Edgewood Drywall Services
Edgewood Drywall Services
4.8(
42
)
Addition to Existing Structure - Build

Serving Franklin, 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

2 neighbors recently requested a quote
Recommended by58%of homeowners
Avatar for Exteriors Plus, LLC
Exteriors Plus, LLC
3.7(
40
)
Addition to Existing Structure - Build

Serving Franklin, NH and surrounding areas

Approved

In business since 2020

Warranties offered

Credit card accepted

"I hired Exteriors Plus to build a Farmerâ s porch. I am extremely satisfied with their work. The team was dependable, knowledgeable, and had great customer service. Shane listened to my every request and delivered. I would recommend this company to anyone looking to have a porch built."
cedar siding and composite decking
Freestanding above ground pool deck
cedar siding and composite decking
Freestanding above ground pool deck
cedar siding and composite decking

+65

Response time12 hrs
30 neighbors recently requested a quote
Recommended by82%of homeowners
Sonart Construction Corp.
2.3(
7
)
Addition to Existing Structure - Build

Serving Franklin, NH and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"I recently had my shingle roof replaced and I?m very happy with the results. The team was professional, punctual, and completed the job efficiently. The quality of the work is excellent, and the new roof looks great. They kept the work area clean and communicated well throughout the process. I would definitely recommend them to anyone needing a roof replacement."
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FAQs for addition to existing structure building service projects in Franklin, 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 Franklin, 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.