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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon12
    Verified basement remodels reviews

Top-Rated Basement remodelers in Lewiston - Updated Nov 2026

Avatar for K&A Renovations, LLC
K&A Renovations, LLC
4.9(
24
)
Basement - Remodel

Serving Lewiston, ME and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Small jobs welcome

"Kaydn has been very responsive as our renovation and repair needs evolve. We certainly aren’t done yet, but we will keep this company involved as we continue to work forward through some major renovations. We just started with them for essential repairs before embarking on the more ambitious projects. Kaydn has proven himself as very knowledgeable and capable. More to come."
Response time1 day
Response rate89%
10 neighbors recently requested a quote
Avatar for Sunapee Builder
Sunapee Builder
4.9(
38
)
Basement - Remodel

Serving Lewiston, ME and surrounding areas

Approved

In business since 1988

Free estimates

Customers say: Quick response

"Don and his assistant Clay did a great job installing interior closet doors and a stair railing in my home. They were great to work with from start to finish and I highly recommend them."
Lorello
Fralich
VanBrunt
Lorello
Blanchard

+36

Response time2 days
7 neighbors recently requested a quote
Recommended by63%of homeowners
Avatar for Opulent Builders LLC
Opulent Builders LLC
4.5(
8
)
Basement - Remodel

Serving Lewiston, 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

3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for 506 Designs & Carpentry LLC
506 Designs & Carpentry LLC
4.4(
7
)
Basement - Remodel

Serving Lewiston, ME and surrounding areas

Approved

Free estimates

Emergency services offered

"Brendan did a great job on assembling four pieces wood furniture. He had to construct a wood part that was missing from the materials. It turned out to be rather complex work and we appreciated his attention to detail. Hope we can work with him again!"
20 neighbors recently requested a quote
Avatar for Innovative Construction
Innovative Construction
3.7(
33
)
Basement - Remodel

Serving Lewiston, ME and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"What I found outstanding was the excellent communication from Greg about my project at all stages, from the first meeting, through the repair process, to the completion. I always knew what to expect from the day-to-day work and I felt he and I were on the same page. My facia board, gable board, removal of moss on my roof and door replacement was accomplished safely and thoughtfully by his competent crew. I would recommend this company to anyone as I feel they are very trustworthy, and I hope to use them again for my next project"
Before
Deck Repair
Deck Repair
Before
MIDWAY

+9

Response time3 days
8 neighbors recently requested a quote
Recommended by43%of homeowners
Avatar for Doak and Co Contracting
Doak and Co Contracting
New to Angi
Basement - Remodel

Serving Lewiston, ME and surrounding areas

Approved

In business since 2023

Free estimates

Small jobs welcome

We at Doak and Co Contracting focus on quality services over quantity. We use our experience and expertise to complete your project with perfection. Customer service and honesty are the most important aspects of our business and your satisfaction is guaranteed. Please call us today for an estimate. We look forward to working with you.

Response time10 hrs
3 neighbors recently requested a quote
...
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Basement Remodel FAQs, answered by experts

Living in a finished basement is acceptable, but only if the space has the proper points of egress and includes smoke and carbon monoxide (CO) detectors to ensure the safety of the occupants. A good way to ensure your finished basement is suitable for use as living space is to get the basement finishing project properly permitted.

Any bowing in a basement wall indicates a problem that needs to be addressed by a professional. If your basement wall bows more than 1 inch, it's time for an inspection. Generally, a wall can bow up to 30% of its thickness (around 2.5 inches for an 8-inch-thick wall) before it becomes an urgent situation. Bowing of 2 to 4 inches is more straightforward to fix than bowing of more than 4 inches, which will require significant repairs. If the bowing is more than 6 inches, the wall will likely need to be replaced. The sooner you address the problem, the easier and less expensive the repair will be.

The difficulty of adding a basement to an existing house can vary depending on the house’s location, the size of the basement, and the type and condition of the existing foundation. Adding a basement is a job best handled by the pros, so you’ll need to enlist professional help for this project.

When considering finishing your basement, take into account a few pros and cons:

Pros

  • Can increase the value of your home

  • Separate space from the rest of the house 

  • Customize and personalize the basement to suit your needs and style

  • Increase the amount of living space in your home

Cons

  • May not regain enough value to cover the cost of finishing

  • Lack of natural light if it’s below ground level

  • Moisture or flooding can cause costly damage

  • Installing plumbing and electrical can be messy and costly

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.

The Lewiston, ME homeowners’ guide to basement remodels

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