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  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon10
    Verified basement remodels reviews

Top-Rated Basement remodelers in Nelson - Updated Nov 2026

Avatar for Owens Corning Basement Finishing System
Owens Corning Basement Finishing System
4.5(
533
)
Basement - Remodel

Serving Nelson, NH and surrounding areas

Approved

Super Service Award Winner

In business since 1990

Free estimates

Warranties offered

"I couldn’t be happier with the work Owens Corning Basement did remodeling my basement! From start to finish, they were professional, courteous, and attentive to every detail. The team completed the project on time and within budget, keeping me informed throughout the process. The finished basement looks amazing—bright, functional, and exactly what I envisioned. I highly recommend Owen Corning Basement to anyone looking for high-quality remodeling work!"
Media Room Before
Media Room After
Games Room Before
Games Room After
Living Room Before

+128

Response time11 hrs
62 neighbors recently requested a quote
Recommended by69%of homeowners
Tim Gagnon Frame to Finish
4.7(
35
)
Basement - Remodel

Serving Nelson, NH and surrounding areas

Approved

In business since 2008

Free estimates

Customers say: Quick response

"He did an awesome job. The stairs came out just as I imagined. He made basement stairs to meet code. This was not part of the original project request. He was very friendly and professional. He was on time and cleaned up before leaving for the day. I am very satisfied with his work and would hire him again."
closet
mantel living room
stairs and entertainment center
new mantel
new bedroom

+22

Response time1 day
Recommended by84%of homeowners
Avatar for Edgewood Drywall Services
Edgewood Drywall Services
4.8(
41
)
Basement - Remodel

Serving Nelson, 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

1 neighbors recently requested a quote
Recommended by60%of homeowners
Avatar for On Task Construction LLC
On Task Construction LLC
5.0(
9
)
Basement - Remodel

Serving Nelson, NH and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

We are 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. \n \nTrip charge $100 will be taken off the contracted amount once agreement is signed.

Spray foam
Spray foam
Spray foam
Deck build
Deck build

+4

2 neighbors recently requested a quote
Recommended by33%of homeowners
Avatar for DCL Construction
DCL Construction
5.0(
6
)
Basement - Remodel

Serving Nelson, NH and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"Bob was amazing throughout the entire project. Was very knowledgeable about everything we requested and helped with the planning process from beginning to end. Gave extremely realistic cost and timeframe. Was extremely professional the entire time and always made sure to clean up and it never felt like we were in the middle of a “construction sight”! We were so happy with his work that we are planning more projects. I would not have any hesitation in recommending Bob for a project. You won’t regret it!!!"
After
After
After
After
Before

+38

Response time10 hrs
2 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Freedom Framing and More, LLC
Freedom Framing and More, LLC
4.3(
14
)
Basement - Remodel

Serving Nelson, NH and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"The project is underway and will be completed on time. Mathew is very personable and easy to work with. He has kept me informed about every step thus far. I’m looking forward to having our new space completed and ready to use."
Before
During
Wrapping up
Finished
Prep

+34

Response time2 days
Response rate95%
Recommended by84%of homeowners
Avatar for Greater Northeastern Construction
Greater Northeastern Construction
5.0(
3
)
Basement - Remodel

Serving Nelson, NH and surrounding areas

Approved

In business since 1979

Credit card accepted

Offers commercial services

Greater Northeastern Construction is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 35 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

My jobs
My jobs
My jobs
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for DALLASTRA CONSTRUCTION LLC
DALLASTRA CONSTRUCTION LLC
4.1(
8
)
Basement - Remodel

Serving Nelson, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Credit card accepted

"This was my first time hiring a contractor and I admit it was quite daunting. After meeting with two other contractors and "testing" Dallastra, I felt they were up to the task. Not only that, I was on vacation in Italy while the work was done! Dallastra held to the promise of keeping me updated the whole time. When I returned home I was, and still am, happy with the results. (Dallastra also refinished my wood floors, painted the ceilings on the main floor as well as a couple of other small areas.)"
Bathroom remodeling
Bathroom remodeling
Bathroom remodeling
Bathroom Remodling
Bathroom Remodling

+7

Response time2 hrs
Response rate100%
...
Showing 1-10 of 90
Basement Remodel FAQs, answered by experts

You can paint your ceiling or install a drywall ceiling if the ceiling is unfinished, as they take up less headroom than drop ceilings. 

If there are pipes in the way of ceiling installation, you can do one of two things: reroute the pipes or adjust the installation to fit, which will cost extra.

The average cost to remodel a basement is between $12,100 and $33,400. Depending on the project's complexity, the price can be as low as $3,500 or exceed $50,200. For a simple project like adding a home office, you might spend between $500 and $3,000. However, a more extensive project, such as adding a bathroom, can range from $6,600 to $16,500. The final cost is influenced by factors like the basement's size and condition, the type of remodel, material choices, your location, and accessibility. For an accurate price, it's best to consult with a basement remodeling team.

If you’re not sure which method of raising the ceiling is best for you, here are a couple of considerations to help you make that decision. A professional ceiling company will be able to help you determine the best option for your home.

  • How long you are planning to live there: although raising the basement ceiling will increase the value of your home, if you’re planning to sell the house, then go for raising the house.

  • The condition of the foundation: to lower the floors, your foundation has to be intact whereas raising the house will allow you to restore the damaged foundation.

Yes, you can add a bathroom to an unfinished basement, but you’ll want to take proper precautions if doing so. As with any bathroom addition, you’ll need to make sure that it’s approved by local building authorities first. With unfinished basements, you especially need to keep an eye on proper ventilation practices.

Framing a basement takes three to five days, on average, when completed by a professional, though it may take longer for a larger space. Keep in mind this doesn’t include the time to complete the design, obtain permits, and install the drywall on the framing. On average, fully finishing a basement takes an average of 45 days.

The Nelson, NH homeowners’ guide to basement remodels

From average costs to expert advice, get all the answers you need to get your job done.