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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
72 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

"I hired Jesse's company to repair violations in the building code. Jesse's employee was very punctual, professional and a very skilled tradesman. I noticed during the project that they took pride in their work, and always went the extra step to absolutely do everything right. This experience renewed my faith in some contractors. Anything and Everything will be my only phone call for any work around the house. Even his sub contractors were a reflection of his company. Talented and professional with competitive pricing."
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
...
Showing 1-10 of 111
Basement Remodel FAQs, answered by experts

You should always use high-quality lumber for your framing in order to ensure it will last the test of time and resist moisture. Use 2-foot by 4-foot lumber that is pressure-treated for your framing.

Yes, most general contractors require an initial down payment. A reasonable deposit is typically between 10% and 25% of the total project cost, although this can vary by project size and location. This upfront payment helps the contractor cover initial costs like materials, permits, licensing, and hiring subcontractors. The remaining balance is usually billed according to a schedule outlined in your contract, often tied to project milestones or completion dates. Be cautious of contractors who ask for a large deposit of 50% or more, as this could be a red flag for a scam.

Common mistakes when finishing basement walls include neglecting proper insulation, insufficient moisture management, and poor ventilation. Not addressing these issues can lead to mold growth, water damage, and discomfort. Additionally, inadequate planning, improper framing, and rushing the project can result in subpar outcomes. 

It's essential to follow best practices, seek professional guidance if needed, and prioritize thoroughness and attention to detail.

Although it’s not required, air ventilation in a finished basement can help improve the air quality, prevent moisture and mold issues, keep musty odors away, and also maintain the air quality throughout the rest of your home. Proper ventilation will help maintain the value of your investment in finishing your basement. Try basement ventilation methods like installing vents or a dehumidifier for best results.

Renovation enhances functionality, increases home value, and can add new space for personal or family needs. It typically modernizes older unfinished basements for new uses.

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.