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Top-Rated Basement remodelers in Columbia - Updated Nov 2026

Avatar for Connecticut Basement Systems, Inc.
Connecticut Basement Systems, Inc.
4.3(
589
)
Basement - Remodel

Serving Columbia, CT and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"Very well done job! Service technicians were knowledgeable and professional, thorough and efficient, kind and polite. I highly recommend the company for basement service."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+12

169 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Owens Corning Basement Finishing System
Owens Corning Basement Finishing System
4.4(
553
)
Basement - Remodel

Serving Columbia, CT and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"We had a great experience with the Lux Renovations and Owens Corning team. The whole process was very easy from designing the space, selecting colors, and having a contract manager who organized the entire basement remodel including all the trades and inspections. We were sold on the Owens Corning materials for the basement and that they were engineered specifically for a basement space. Would highly recommend this team for your basement remodel needs."
Renovation in Methuen
Renovation in Methuen
Renovation in Methuen
Renovation in Methuen
Renovation in Methuen

+121

Response time1 day
79 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for Whitcomb and Holmes Company
Whitcomb and Holmes Company
5.0(
13
)
Basement - Remodel

Serving Columbia, CT and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"Chad and Joe at Whitcomb & Holmes were so great to work with!! We couldn’t recommend them highly enough if you’re looking for someone to remodel your space. From our first conversation with them, we knew that we could trust them to get the job done in our exact vision. They helped us to work within our budget and provided valuable insights and recommendations based on their experience. We’re thrilled with how it’s come out and won’t hesitate to use them for future home projects!"
Quartz countertop
Farm sink
Custom black walnut vanity in 1/2 bath
New lighting fixtures and ceiling fan along with appliances. LVT for flooring.
New trim to accentuate the walls and new AV boxes to hide cords.

+27

Response time4 days
Response rate100%
Recommended by100%of homeowners
Avatar for TimberWolf Contracting LLC.
TimberWolf Contracting LLC.
4.2(
55
)
Basement - Remodel

Serving Columbia, CT and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"I’m very pleased with the service and work I received from Timber Wolf contractors and his crew. He contacted me and arranged a time to look at the work I needed done. He promptly sent me a quote. He set up a time between our schedules to build my spiral staircase and replace a window with a vent. He arrived on time and completed the job beyond my satisfacon. I was so pleased with the results and communication I received, that I hired them to come to my other home to install "Flooring for my sunroom, pantry and hallway. They also painted trim and upgraded my hardware on my kitchen cabinets. I felt very comfortable with Timber and left him a key so I could go to work. I highly recommend Timber Wolf contractors for your home projects, they are professional, polite and hardworking. Respectfully, A. Saint"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+16

Response rate100%
1 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Above & Beyond Remodeling, LLC
Above & Beyond Remodeling, LLC
3.7(
83
)
Basement - Remodel

Serving Columbia, CT and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Ernest recently completed a basement remodel for our home. It went from a dark, uninviting spot to one of our favorite places in the house. The quality of work is fantastic as well as communication from Ernest regarding when and how things will be done. Ernest is currently working on two other projects in our house and we are already lining him up for more wood floor installs, paintings, and bathroom remodels. Highly recommend!"
framing
 tile almost complete
storage
 star of frame
 unusable space

+101

Response time2 days
8 neighbors recently requested a quote
Recommended by59%of homeowners
Clairmont Remodeling
4.1(
35
)
Basement - Remodel

Serving Columbia, CT and surrounding areas

Approved

In business since 2006

Free estimates

Credit card accepted

"We have had Clairmont Remodeling do multiple jobs on the inside and outside of our home. Our experiences have been 100% positive! Their workmanship is meticulous, attention to detail precise, and they clean the area upon completion of the job. They are prompt, skilled, professional, and trustworthy. Communication during the projects is always expedited in a timely manner. Their customer service exceeds all expectations."
Response time3 days
2 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Better Built Basements, LLC
Better Built Basements, LLC
3.9(
4
)
Basement - Remodel

Serving Columbia, CT and surrounding areas

Approved

In business since 2008

Free estimates

Credit card accepted

"Finished 80% of basement with a new family room, a new exercise room, a new bedroom and a new full bath. They have an amazing operation. The project started and finished exactly when they said it would... and IT COST EXACTLY WHAT THEY SAID IT WOULD COST. I was amazed at their organizational skills and the project moved along like a symphony of different construction specialists coming and going. Jim (owner) told me the only way they could schedule with such precision is by having all the contractors work directly for him. He has project managers and specialists for every aspect of the job. I would HIGHLY recommend them."
Bar Area
Entertainment Area
Entertainment Area
Media Area
Entertainment Area

+3

Response time9 hrs
Recommended by100%of homeowners
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Basement Remodel FAQs, answered by experts

Since DIYing a basement remodel isn't typically advised, there are some ways that you can still save money on this project without putting yourself in danger. Some ways to save money on a basement remodel include:

  • Painting walls yourself versus including in the cost of the remodel 

  • Installing light fixtures yourself

  • Choosing prefabricated fixtures, like cabinets, over custom ones

  • Choosing a budget-friendly flooring option, like laminate or vinyl flooring, and add rugs where necessary

Yes, in most cases, finishing a basement is worth the cost. The project adds valuable, usable square footage to your home and typically provides a return on investment (ROI) of 70% to 75%. For example, an average basement refinishing project costing $32,000 could add between $22,400 and $24,000 to your property's value. The final value added depends on factors like your location, the quality of materials and workmanship, and the features you include, such as a living space, bedroom, or bathroom. To be officially counted in your home's total square footage, the finished space must comply with all local building codes, including requirements for points of egress. However, in areas prone to flooding, a finished basement might be seen as a liability by potential buyers and could potentially decrease your home's value.

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.

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.

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.

The Columbia, CT homeowners’ guide to basement remodels

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