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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon13
    Verified basement remodels reviews

Top-Rated Basement remodelers in Topsham - Updated Nov 2026

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

Serving Topsham, ME 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
58 neighbors recently requested a quote
Recommended by69%of homeowners
Avatar for Leviathan Group LLC
Leviathan Group LLC
5.0(
9
)
Basement - Remodel

Serving Topsham, ME and surrounding areas

Approved

In business since 1996

Free estimates

Offers commercial services

"We had our kitchen completely remodeled by Hutchins and Son. Owner Don is great to work with. He was able to provide us with the exact custom cabinets and custom color we were looking for. I highly recommend Don and his son ."
Cabinet
Kitchen Island
Custom Cabinets
Pot Hangers
The Leviathan Group

+9

Response time2 days
Response rate95%
8 neighbors recently requested a quote
Avatar for A.G. Construction, LLC
A.G. Construction, LLC
4.8(
6
)
Basement - Remodel

Serving Topsham, ME and surrounding areas

Approved

In business since 2010

Free estimates

Offers commercial services

"We had a pretty big project, removing an old camp roof and building a new roof rotated 90 degrees, and adding a loft area. We were very happy with Andrew and his crew. They really go the extra mile to make sure everything is done right - they don't cut corners and take pride in their work. They installed new windows in the front and even used Windex to wipe off their finger smudges! Price was very good, and they're good, honest guys to work with. Very pleased!"
Jefferson Deck Rebuild
Jefferson Deck Rebuild
Jefferson Deck Rebuild
Camp on post
Camp on post

+27

Response time2 days
Recommended by100%of homeowners
Avatar for Opulent Builders LLC
Opulent Builders LLC
4.5(
8
)
Basement - Remodel

Serving Topsham, ME and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

Dominic 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.

Bathroom Dormer Remodel
Bathroom Dormer Remodel
Bathroom Dormer Remodel
Bathroom Dormer Remodel
Bathroom Dormer Remodel

+13

2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Lee Family Construction, LLC
Lee Family Construction, LLC
5.0(
2
)
Basement - Remodel

Serving Topsham, ME and surrounding areas

Approved

In business since 1993

Free estimates

Warranties offered

Lee Family Construction is Owned and Operated by River and Laura Lee. We have over thirty years of professional construction experience that we put to use for our clients.\n\nWe offer careful planning, high quality craftsmanship, honest communication and a good deal of hard work. We want you to have a good experience with your project.\n\nWe focus on home remodeling, additions and repairs. \n\nRemodeling examples includes kitchen and bathroom changes, flooring upgrades, layout changes to living space and basement/attic conversions. \n\nAdditions include building a garage, accessory dwelling, screen porch or deck.\n\nTypical repair projects include addressing rot, damaged drywall, sticking doors and moisture control.

Tile installation
Tile installation
Tile installation
Tile installation
Tile installation

+33

Avatar for Innovative Construction
Innovative Construction
3.7(
33
)
Basement - Remodel

Serving Topsham, ME and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"I hired innovative construction to reside one side of my building. During the bidding of the project as well as during the execution of the work, Greg and his team were professional, timely and responsive. I would absolutely hire Greg and his team again"
Before
Deck Repair
Deck Repair
Before
MIDWAY

+9

Response time3 days
6 neighbors recently requested a quote
Recommended by43%of homeowners
Williams Construction, New Construction & Remodeling, Inc.
3.5(
3
)
Basement - Remodel

Serving Topsham, ME and surrounding areas

Approved

In business since 2005

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Project photos
Project photos
Project photos
Project photos
Project photos

+13

Response time30 mins
Recommended by66%of homeowners
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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.

It’s less expensive to finish your basement than it is to build an addition to your home. The average cost to refinish a basement is $32,000 (between $7 and $23 per square foot) while building an addition to your home costs $50,325 ($80 to $210 per square foot). Depending on the size of your basement and other factors, like moving plumbing and electrical, refinishing a basement is a more cost-effective option in most cases.

If you have the woodworking experience to build a bar from scratch and you have the time, DIYing the work is a no-brainer and can save a few thousand dollars. However, if you’re looking to include a sink, additional lighting fixtures, or high-end bar tops and cabinets, it’s usually a better idea to call in a pro. It will cost more, but the finished product will likely be worth it.

If you don’t have a crawl space but have a partial basement you want to make deeper, you can expect to spend a little less—between $40,000 and $90,000 on average. However, if you’re not adding new finished square footage, you won’t see much in the way of ROI.

Finishing a basement can provide a great return on investment, by increasing the market price of your home when you want to sell. Beyond that, there are many reasons to finish your basement. Doing so expands the usable square footage of your home, so you can enjoy it more, even as your family grows. Renovating your basement costs less in terms of time, energy, and money than having to search for and buy a new home.

The Topsham, ME homeowners’ guide to basement remodels

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