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Find Addition to existing structure builders in Hillsborough

Precision Works Home Remodeling, LLC
4.9(
11
)

Serving Hillsborough, NH and surrounding areas

Angi Approved

In business since 2003

Free estimates

Customers say: Quality work

"Eli came out and re graded a whole residential yard for me along with taking out and reinstalling a rock bed on the side of my house. He did a great job and I highly recommend Precision Works for anything excavating related! Eli is a super nice guy, very professional, and is very fair with his pricing! He was very honest with the whole job from start to finish!! If you don't hire this company, you will be letting yourself down!"
1/2 Bath Remodel
Flooring
Flooring
Flooring
Flooring

+117

2 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Seder & Son
Seder & Son
4.8(
25
)

Serving Hillsborough, NH and surrounding areas

Angi Approved

In business since 1965

Free estimates

Emergency services offered

"Seder and Son were great to deal with. They came to give a free estimate. The work was completed as promised and on time. Very professional . They kept the work area clean. I would have no hesitation in hiring them again."
Home Addition
Basement
Attic Bathroom
Wrap Around Porch
Dormer Addition

+15

Response time2 days
6 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for Straight Line Construction LLC
Straight Line Construction LLC
5.0(
4
)

Serving Hillsborough, NH and surrounding areas

Angi Approved

In business since 2014

Offers commercial services

"My project was small compared to many other projects out there. And yet Josh and Straight Line Constitution were happy to take my business and made it a priority. There was some urgency to getting it done and they sent the right number of people to meet the deadline. And when unforeseeable complications arose they worked with me in order to find a solution that would achieve the goal of the project without extreme cost overrun. There are many contractors out there who will give you a wide range of quotes. If you want to go cheap then find someone who will do a half ass job for little money. But if you want it done right and you want it to last call Straight Line Constitution. The rates are reasonable the quality is top-notch and they're very friendly people to work with."
1 neighbors recently requested a quote
Avatar for RD Horizon Builders LLC
RD Horizon Builders LLC
5.0(
1
)

Serving Hillsborough, NH and surrounding areas

Angi Approved

In business since 2025

Free estimates

Credit card accepted

"What really sets them apart is communication and reliability. They showed up when they said they would, kept us informed every step of the way, and handled any changes or questions quickly and professionally. No surprises, no excuses ? just great service and great results. If you?re looking for a remodeling company that is skilled, trustworthy, and truly cares about the outcome of your home, this is the team to hire. We will absolutely be using them again and recommending them to everyone we know."
Full bathroom Remodel
Full bathroom Remodel
Siding
Siding
Siding

+23

3 neighbors recently requested a quote
Sonart Construction Corp.
1.5(
2
)

Serving Hillsborough, NH and surrounding areas

Angi Approved

In business since 2013

Free estimates

Credit card accepted

"????? If I could give zero stars, I would Hiring this contractor was a nightmare from start to finish. The bathroom they delivered is so poorly done that I feel like I need to redo it entirely. They rely on subpar subcontractors with no professionalism or craftsmanship. ? Overpromise and underdeliver: I had to stay on top of every detail myself, doing the job the contractor was hired to manage. ? Unreliable: Never kept appointments or confirmed schedules. The only time they showed up on time was to collect payment. ? Unsafe practices: At one point, a subcontractor was cutting concrete inside the bathroom with a gas?powered tool, filling my entire home with smoke. I had to intervene to stop it and argue just to get basic protections like tarps in place. ? Poor management: Subcontractors openly complained about not being paid, and I even had to send one home myself because of unacceptable behavior. ? End result: Substandard work that does not reflect the money spent. Save yourself "
FAQs for addition to existing structure building service projects in Hillsborough, 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 Hillsborough, 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.