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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
64 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%
7 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 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
8 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
Avatar for Lee Family Construction, LLC
Lee Family Construction, LLC
5.0(
1
)
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

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Basement Remodel FAQs, answered by experts

It is common for a contractor to ask for a down payment before starting a project, especially for jobs that require purchasing materials and equipment or hiring a crew. The deposit amount can range from 10% to 50% of the total job cost. While a request for up to 50% is not unusual, a contractor should not ask for more than that, and you should never pay for a project in full before the work has begun. To protect yourself, always discuss payment terms before starting and have a written contract that outlines the project timeline and expectations. Additionally, be sure to hire reputable contractors and check their licensing and insurance before the project begins.

Egress windows or doors are required in finished basements to meet safety and building codes. If your basement is unfinished and used as a storage space, egress windows are not required, but anything considered a habitable space must have an additional point of egress in addition to the stairs.

It is generally more affordable to finish a basement than an attic, though it ultimately depends on how you plan to use the space. The average cost to finish a basement ranges from $7 to $23 per square foot, while attic renovation costs $30 to $60 per square foot. However, a simple attic conversion to a storage space will cost significantly less.

Walkout basements are not generally included in a home’s square footage, although they may be if they meet certain conditions that depend on local regulations. A finished walkout basement used as a living space may be counted toward square footage in some locations as long as all codes for livable space are met.

Home improvements that increase value offer a high return on investment (ROI) and can enhance your quality of life. Upgrades to your home’s curb appeal often add the most value, with garage door replacement having one of the best ROIs at 93%. Other high-value exterior projects include replacing your front door, upgrading siding and roofing, installing a stone veneer, adding new windows, and landscaping. For interior renovations, a fresh coat of paint provides an excellent ROI. Major projects like a kitchen remodel or upgrading appliances and HVAC systems also add significant value, as potential buyers appreciate the peace of mind that new equipment provides.

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.