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Best basement remodelers near Andover, NH

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Top-Rated Basement remodelers in Andover - Updated Nov 2026

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

Serving Andover, 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
74 neighbors recently requested a quote
Recommended by69%of homeowners
Avatar for Anything & Everything Home Improvement LLC
Anything & Everything Home Improvement LLC
4.6(
70
)
Basement - Remodel

Serving Andover, NH and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"Jesse and his veteran crew of subs built a large log home for us. These are tricky homes to build. Any unexpected events were handled professionally. We plan to hire him again to renovate the unfinished basement."
Exterior transformation
Full exterior
Full exterior
Full exterior
New decks and porches

+14

Recommended by93%of homeowners
Precision Works Home Remodeling, LLC
4.7(
15
)
Basement - Remodel

Serving Andover, NH and surrounding areas

Approved

In business since 2003

Free estimates

Customers say: Quality work

"This is the 2nd job we has Steve do for us. The was a min bathroom renovation and also kitchen backsplash. Bathroom came out great. He walled off a second door to access the bathroom, ripped out old tile, and put down new tile and installed a new vanity. Very happy with the finished product. Steve also did the backsplash in the kitchen. It came out perfect. I would definitely recommend Steve for any home improvement projects you may have."
1/2 Bath Remodel
Flooring
Flooring
Flooring
Flooring

+117

1 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for On Task Construction LLC
On Task Construction LLC
5.0(
9
)
Basement - Remodel

Serving Andover, 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

3 neighbors recently requested a quote
Recommended by33%of homeowners
Avatar for Gavin Liscombe Residential Construction
Gavin Liscombe Residential Construction
4.4(
45
)
Basement - Remodel

Serving Andover, NH and surrounding areas

Approved

In business since 2020

Offers commercial services

Customers say: True professional

"Did a wonderful job and takes pride in his work. He was adding a railing to the stairs and replacing stair treads and discovered problems with the raisers. Replaced those as well and provided a competitive price for the amount of work that was completed. We had specific concerns about having this done quickly. Gavin assisted in making sure that he was able to complete the stairs on time despite the additional work. We were happy with the work and outcome."
13 neighbors recently requested a quote
Recommended by28%of homeowners
Avatar for Freedom Framing and More, LLC
Freedom Framing and More, LLC
4.3(
14
)
Basement - Remodel

Serving Andover, 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 Andover, 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 Exteriors Plus, LLC
Exteriors Plus, LLC
3.7(
40
)
Basement - Remodel

Serving Andover, NH and surrounding areas

Approved

In business since 2020

Warranties offered

Credit card accepted

"Shane came over, discussed the options and gave a fair price for our 8x9 porch-deck. Ian provided quality installation taking time to insure a good job. The entire project completed within the timeframe discussed originally with Shane. My only comaint is that I now have approximately 50 more Sq feet of snow to move this winter."
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
Avatar for DALLASTRA CONSTRUCTION LLC
DALLASTRA CONSTRUCTION LLC
4.1(
8
)
Basement - Remodel

Serving Andover, 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%
Avatar for Granite State Interiors LLC
Granite State Interiors LLC
5.0(
3
)
Basement - Remodel

Serving Andover, NH and surrounding areas

Approved

Free estimates

Credit card accepted

Granite State Interiors LLC is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

Fireplace Makeover
Fireplace Makeover
Tile Shower
Tile Shower
Before

+8

2 neighbors recently requested a quote
...
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Basement Remodel FAQs, answered by experts

Walkout basements cost more than other kinds of basements, and can also increase your risk of leaks as well as a loss of insulation, leading to higher heating and cooling costs. Improperly installed walkout basements may lead to structural issues with your foundation, so ensure you’re working with a contractor who has extensive experience with this kind of basement.

You should plan on waiting at least a year and ideally two to three years after construction before finishing your basement. This will give the foundation time to settle in response to the weight of your home and the expansion of the surrounding soil. You can then repair your foundation and seal any cracks as needed before finishing it to reduce your risk of future leaks or other issues.

Yes, most general contractors require an initial down payment, typically between 10% and 25% of the total project cost. This upfront payment helps cover the costs of materials, permits, and subcontractors. The remaining project costs are usually billed after specific project milestones are reached or on set completion dates, as outlined in your contract. Be wary of contractors who require a significant deposit of 50% or more upfront, as this could be a red flag for a scam.

The most challenging part of finishing a basement is addressing moisture control. Basement waterproofing is an essential task that requires a professional’s skills and knowledge. If you don’t properly waterproof your finished basement, it’ll be vulnerable to dampness, water damage, and mold growth. Ensuring proper insulation and ventilation to combat these issues while meeting building codes adds complexity to your remodeling project.

Yes. Renovating your basement has a return on investment (ROI) of 75%, meaning your remodel investment will significantly increase the value of your home. Besides the ROI, your family can enjoy a larger, more usable space while you live there. 

The Andover, NH homeowners’ guide to basement remodels

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