How much do addition contractors typically cost?
- Cohasset, Massachusetts Average$59,380
- Typical Range$40,000 - $59,380
- Low End - High End$8,200 - $180,000
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Service Pros
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
Norton, MA·
Renovations, Remodels
"We haven't started as yet. Excellent in feedback and communications. willing to work with my schedule and has given me good follow up."
E55BCDEA25AE877DD34CEE6BF2C6BCCB43BF0527AA6B7932209462B8907518FD 3. in December 2011
EC
Kingston, MA·
"To be fully honest, at first I was a little skeptical, as I am with most contractors, but they came in on time, were very clean, and were punctual about the things I asked for and needed done. The crew was efficient and the work was done correctly. They even helped and built my elderly neighbor a garage bathroom after seeing the work at my house. I definitely will have them back to build my ADU for my in-laws."
B281B16C95D005E71BAA54EFF86ED91345ECD55B9F69E67609E6E86F4F074DD8 D. in November 2025
Scituate, MA·
Interior finish work, Carpentry Framing, Kitchens - Bathrooms , and 2 more
"Jason recently finished our basement. He was honest, reliable and the quality of work was great. We would definitely recommend Jason and hire him again when needed. Thx again Jason!"
Michael L. in January 2018
SC
"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."
01C40F612736BA43A3D69F48BE813B7873B163B03ADDA786326EBB1D80B37326 D. in March 2026
RC
In business since 1990
Hanover, MA·
About us: "Redman Construction Inc. is a family owned and operated building and remodeling company which has been in business for 30+ years. The company owners are Joseph Redman and James Runkles. Our customer's happiness is our main concern. We want to make their vision a reality! Our slogan is "We can do it, just ask". We are fully insured, and licensed by the state of Mass. # CS-059706. We are also registered with the state of Mass: Home Improvement Registration Program, # 106601, and are an accredited business with the BBB. We do use sub-contractors for roofing, plaster, pluming, electrical, excavation, and foundations, most of which we have long standing business relationships."
WC
In business since 2019
Weymouth, MA·
About us: "W.I.T. Contracting, 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. State Licenses Home Improvement Contractor #: 194838 EXP: 3/11/2026 Construction Supervisors #: CS-115488 EXP: 1/8/2027"
RA
In business since 2022
Hanson, MA·
About us: "We guarantee your satisfaction. We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!"
MC
In business since 1998
Milton, MA·
About us: "Mavridis Contracting Services, Inc fully licensed and insured company has been in business for over 20 years servicing all your home improvements and general contracting needs. We specialize in all aspects of home remodeling, additions and decks. We provide craftmanship work, attention to detail and professionalism."
Showing 1-9 of 16 results
Costs for related projects in Cohasset, MA
- Build an Addition$40,000 - $59,380
- Remodel or Renovate a House$0 - $80,500
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 Cohasset, MA
HomeAdvisor Community Rating
Overall Rating:
Cohasset Addition & Remodeling Contractors are rated 4.5 out of 5 based on 297 reviews of 297 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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