How much do addition contractors typically cost?
- Nashua, New Hampshire Average$41,226
- Typical Range$20,500 - $25,000
- Low End - High End$7,800 - $100,000
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Service Pros
Bedford, NH·
Deck or Porch - Build or Replace, New Homes / Family Room Additions / Garages / Remodels /Renovations
"O'Regan Construction built addition on my house. Paul (owner) and his crew do quality job for reasonable price. I would highly recommend O'Regan to anyone looking for good and experienced contractor."
LJ P. in January 2013
Tewksbury, MA·
Remodels, Electric
"Project was done early and company was very helpful with ideas to make project unique"
F96B28548CDE7A2C7C81AEB6C20508487197143A4C17A097D3766BC7A9F56ED3 F. in August 2026
CI
Weymouth, MA·
"I needed plans for a two-car garage of a certain size and roof pitch. I could not find stock plans of specifically what I wanted. Richard was very prompt and helpful, produced the plans and arranged for an engineer's stamp."
4EAD13B3B5C9E15BD3F1172F3A0CB83F68D9B7DAB1BD2D5895C7F395BC4C840C 1. in June 2026
CR
Boston, MA·
"We hired Pedro and his crew to renovate our basement and to say we are thrilled would be an understatement. Pedro and his crew were very professional throughout the whole project, went above and beyond and exceeded are expectations. We now have a basement that we love and the whole family enjoys!"
7011581F1861CF6A1B395A494C4AAC3FCBDD68082148A282DE089A8881D9D37E 4. in March 2026
RP
Marlborough, MA·
"I had an outstanding experience with Real Painting and could not be happier with the results. The painting looks fabulous, and the service was of the highest quality. I received quotes from four painters, and Carlos compared very favorably in both price and expertise. Carlos accommodated every request I had to make adjustments to my project and made himself available whenever I tried to reach him. He was extremely knowledgeable about which paints would work best for walls, cabinets, ceilings, and the moisture levels in each room, as well as ways he might work with me to maximize efficiency while reducing costs. His team was highly professional, courteous, and skilled. They carefully wrapped and taped my furniture and home items in every room, always removed their shoes when in carpeted areas, and took great care to protect my home throughout the process. Carlos was referred to me by my realtor, who has had him paint her properties twice. After seeing the excellent work he and his t"
36278EC84F36C34231325C3714E6AD6CAD9C49022757FAE96FAC414231036BCB 3. in April 2026
Deck Build, 3-4 seasons rooms , framing, windows, basements, roofs,additions etc, Siding , and 3 more
"John and his team were easy to work with, communicated well and did quality work!"
Marianne D. in December 2024
CH
Nashua, NH·
Specializing in Additions and major renovations, Major Renovation - Multiple Rooms, Kitchens and Bathrooms , and 2 more
"They are a very professional company who have the clients best interests at heart, instead of coming in and leaving."
Josh S. in March 2019
PS
In business since 2021
About us: "Paper Street is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business. We are licensed and insured."
CO
In business since 1990
About us: "C & O Contracting has the knowledge and expertise to assist you with your entire home improvement and remodeling needs. Established in 1990, we have years of experience and know that the customer must be the first priority. Our company is known for our quality craftsmanship and timely work. C & O Contracting is a locally owned and operated company. Our staff is highly skilled and trained to meet all of your expectations and requirements. Please call us today, as we would be happy to discuss your needs."
Showing 1-9 of 23 results
Costs for related projects in Nashua, NH
- Build a Barn, Shed or Playhouse$3,500 - $3,500
- Build an Addition$20,500 - $25,000
- Demo an Interior$800 - $2,583
- Perform Home Renovations and Repairs$2,850 - $5,920
- Remodel or Renovate a House$19,553 - $47,563
Frequently asked questions
- It’s important that you verify their license is still in good standing. Also keep in mind that certain states or provinces don’t require licensing if the job is under a certain dollar amount.
- You can find a list of your state’s licensing requirements on the HomeAdvisor website. Before you get to work with the pro, make sure their qualifications are current and acceptable to you.
- It is always a good idea to get a copy of the pro’s insurance certificate for future records, and in case anything happens. This is a good way to feel more secure in your home project, and to weed out potential scammers.
HomeAdvisor makes it easy to connect with pros near you. You can read reviews, get quotes and book appointments all in one place.
Depending on the type of project, you may find subtle differences in the hiring process. Here’s a look at task-specific advice.
You can use HomeAdvisor to help evaluate a contractor’s qualifications. We put pros through a screening process, and award badges to high-performing contractors. You can find these badges on a pro’s HomeAdvisor profile, and sometimes, his or her website.
Your research doesn’t stop here. Once you’ve found a few prospective companies, make an call to ask a few questions about work history, licensure and more:
- Have you completed a job like this before?
- Do you have a list of references I can contact?
- When are you able to start the job?
In most cases, the responses you get to these three questions will give you a very good idea of the right pro for your project. If you have more than one front-runner, these additional questions can help you narrow it down.
- How many years of experience do you have?
- What’s your permanent business address?
- Are you licensed to work in my area?
- When did you earn your business license?
- How do you handle warranty service complaints?
- Do you have worker’s compensation, property damage and personal liability insurance?
Any good contractor will answer these questions, and most will appreciate dealing with a client that takes such an active interest in finding good service. On the other hand, if a contractor gives you a hard time with these questions, you probably want to find someone else.
Related Projects in Nashua, NH
HomeAdvisor Community Rating
Overall Rating:
Nashua Addition & Remodeling Contractors are rated 4.5 out of 5 based on 63 reviews of 63 pros.
The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.
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