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    Verified basement remodels reviews

Top-Rated Basement remodelers in Harpswell - Updated Nov 2026

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

Serving Harpswell, 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
66 neighbors recently requested a quote
Recommended by69%of homeowners
Avatar for A & D Renovations
A & D Renovations
4.4(
50
)
Basement - Remodel

Serving Harpswell, ME and surrounding areas

Approved

In business since 1978

Free estimates

Emergency services offered

"Entire project went very smoothly, was done in a timely manner. Both men were easy to work with, and they do not leave your property until you are 100% satisfied."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+20

Response time4 days
Response rate100%
3 neighbors recently requested a quote
Avatar for K&A Renovations, LLC
K&A Renovations, LLC
4.9(
24
)
Basement - Remodel

Serving Harpswell, ME and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Small jobs welcome

"K&A renovations were so polite, professional, and did a wonderful job! Kayd’n was communicative across the process and really listened to our needs and budget. We would definitely hire them again!"
Response time1 day
Response rate89%
10 neighbors recently requested a quote
Avatar for Woodland Building Company
Woodland Building Company
5.0(
3
)
Basement - Remodel

Serving Harpswell, ME and surrounding areas

Approved

In business since 2016

Warranties offered

Small jobs welcome

"I cannot recommend Drew Foley and Woodland Building Company highly enough! From start to finish, the experience was absolutely seamless. The crew is flat-out amazing—their talent is unmatched, and their craftsmanship is truly next-level. What really sets them apart, though, is their communication. Drew keeps everything incredibly clear and concise, so you always know exactly what to expect, when they’ll be there, and how the project is moving forward. If you want a team that is professional, remarkably skilled, and great to work with, this is it!"
Interior Trim
Interior Trim
Interior Trim
Interior Trim
Interior Trim

+33

Response time3 hrs
4 neighbors recently requested a quote
Recommended by33%of homeowners
Avatar for Integrity Builders
Integrity Builders
5.0(
6
)
Basement - Remodel

Serving Harpswell, ME and surrounding areas

Approved

In business since 2000

Free estimates

Offers commercial services

"Custom 32’x36’ Goldiva Goldens LLC showroom plus 14x32 pergola and 14x67 pergola plus a small bathroom in the basement; re-tile basement area too. Scott Turcott, Tyler & Michael are great to work with, great communications. In 20 months of building my showroom there wasn’t a single disagreement. If something “didn’t work” as envisioned, like an incinerator toilet that burned the ash, Scott gave me the options. They’re a fabulous team!!"
North Yarmouth Addition
North Yarmouth Addition
North Yarmouth Addition
North Yarmouth Addition
North Yarmouth Addition

+46

5 neighbors recently requested a quote
Recommended by25%of homeowners
Avatar for APEX Builders LLC
APEX Builders LLC
5.0(
2
)
Basement - Remodel

Serving Harpswell, ME and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Billy was referred to me by a friend when I mentioned adding a deck to my house. From the jump, Billy was very professional providing me an on-site consultation explaining in detail what he was going do to fulfill my vision. The project was done in a timely manner and I’m very happy with the results. I have other projects I’m hoping to accomplish in the future so I will definitely be giving Billy a call!"
Response time1 day
2 neighbors recently requested a quote
Avatar for Opulent Builders LLC
Opulent Builders LLC
4.5(
8
)
Basement - Remodel

Serving Harpswell, 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
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Basement Remodel FAQs, answered by experts

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 homeowners often use the terms basement remodeling and basement finishing interchangeably, they are quite different terms. 

Finishing a basement is the process of taking a basement space that is not habitable and adding elements to make it usable. This includes adding plumbing, flooring, and insulation.

Remodeling a basement means taking an already existing finished basement and changing it, often by adding or removing walls, adding plumbing, or changing the existing flooring.

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.

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.

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.

The Harpswell, ME homeowners’ guide to basement remodels

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