Top-rated basement remodelers.

Best basement remodelers near Harwinton, CT

Enter your zip and get matched with up to 5 pros

Need a pro for your basement remodel project in Harwinton, CT?

Select your specific project to find the pro for you.

TRUSTED BY HARWINTON, CT HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon17
    Verified basement remodels reviews

Top-Rated Basement remodelers in Harwinton - Updated Nov 2026

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

Serving Harwinton, CT and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"Great results from waterproofing. Turned my spring flooding anxiety to calm. As humidity rose in summer, I put in a small dehumidifier. Made basement noisy as it struggled to dry and produced a lot of heat. As temperatures rose to about 83 down there and the humidity rose to over 68%, I had same people put in a whole basement commercial-grade dehumidifier. The small unit dropped the humidity to around 50% in less than an hour. Incredible performance and have me peace of mind and peace and quiet downstairs. Temperature dropped gas as well. Weel worth the price to save my most expensive investment."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+12

176 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for The Builders & Cleaners
The Builders & Cleaners
4.9(
122
)
Basement - Remodel

Serving Harwinton, CT and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"These guys were great! We got turned down by two large companies because our dryer vent was almost at the peak of our roof on the second floor, but these guys took it on. They came out the same day we spoke with them to take a look and draw up a quote and then came back the following day to do the cleaning on our dryer vent and put in a new vent on the house. The previous owners had on the wrong cover which caused most of our issues to begin with. I would recommend them to anyone we know. They were professional and explained out everything."
Dust out from the ductwork
Dust out from the ductwork
Clean vent
Clean vent
Dust in the return

+1836

Response time1 day
Response rate92%
Recommended by85%of homeowners
Avatar for Plow and Property Projects, LLC
Plow and Property Projects, LLC
4.3(
84
)
Basement - Remodel

Serving Harwinton, CT and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"I called them and left a message about what I needed done. I received a call from them the same day. They were Abel to come the second day. The job of installing a gable vent on my house was done in less than 2 hours. I will definitely use them for my next project."
Response time2 days
16 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for TimberWolf Contracting LLC.
TimberWolf Contracting LLC.
4.2(
55
)
Basement - Remodel

Serving Harwinton, 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 Hammertime Contracting, LLC
Hammertime Contracting, LLC
4.0(
32
)
Basement - Remodel

Serving Harwinton, CT and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

Hammertime Contracting, LLC, is your premier choice for residential addition and remodeling work. We have provided high quality work and friendly customer service since 1985. Our service keeps our customers coming back to us for all their jobs. Big or small we do it all. Call today you'll be happy you did!

 Side view of old structure to be removed
 Dresser w/ vanity
Before view from ground
Garage
Putnam Rehab

+74

Response time8 hrs
2 neighbors recently requested a quote
Recommended by95%of homeowners
Clairmont Remodeling
4.1(
35
)
Basement - Remodel

Serving Harwinton, CT and surrounding areas

Approved

In business since 2006

Free estimates

Credit card accepted

"Kitchen remodel. Highly professional excellent customer service. Quality of work performed by every crew member was excellent. Crew members were very friendly, helpful and respectful. Completed the job on the timeline given and made aware of any unexpected costs. . Very pleased with the final result. Would hire again for future projects."
Response time3 days
3 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for BnB Enterprises
BnB Enterprises
5.0(
7
)
Basement - Remodel

Serving Harwinton, CT and surrounding areas

Approved

In business since 2020

Credit card accepted

Offers commercial services

We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a locally owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today, and we look forward to working with you!

Bathroom Remodel
Bathroom Remodel
Bathroom Remodel
Bathroom Remodel
Full Bathroom Remodel

+58

2 neighbors recently requested a quote
...
Showing 1-10 of 175
Basement Remodel FAQs, answered by experts

Installing a bathroom in a basement isn’t a project for most homeowners. Many parts—plumbing, electricity, and carpentry—go into this project, each requiring expert-level knowledge and tools. One miscalculation can lead to very expensive repairs. Plus, some homeowner’s insurance might not pay for damages caused by a homeowner DIYing this project. You can protect yourself by allowing the pros to complete this job for you. 

Unless you have extensive experience in construction work, remodeling a basement is best left to a professional. There are several tasks associated with this project that require exact precision, including:

  • Replacing insulation 

  • Replacing carpet or other flooring 

  • Adding heating and cooling

  • Adjusting or adding walls and doors

  • Altering or adding plumbing elements

If any of these elements is done incorrectly, it could severely impact the quality of your basement remodel and be dangerous. Changing a basement often comes with code safety requirements, like egress windows and proper ventilation. Therefore, leaving it up to a professional is often the best decision.

Yes, it is possible to turn a regular basement into a walkout basement. Doing so involves excavating the land around at least one side of your basement foundation, installing retaining walls to create a permanent below-grade area outside your home, and then cutting into the foundation to install an exterior door that leads out to the new space. This is an expensive and time-consuming project, but it can add a lot of value and utility to your home.

The time it takes to finish or remodel a basement can vary significantly, ranging from a few weeks to several months or even up to a year. On average, the construction phase can take four to eight weeks, but the total project time can extend to three or four months when including planning and permits. The timeline depends on several factors, including the basement's size, design complexity, the scope of the work, and your contractor's availability. A more detailed breakdown for an average-sized basement might include: framing (3-5 days), electrical and rough-in plumbing (3-5 days), drywall installation (5 days), flooring (2-3 days), and final touches like painting and trim (about a week). If preliminary work like installing a waterproofing system or addressing structural issues is needed, the timeline could extend to six to twelve months. Factors like difficult access, material transport, and ventilation needs can also add to the project's duration.

Physically, the most challenging part of finishing a basement is installing egress windows or doors when the space is below ground level. Mentally, the hardest part may be envisioning the project and planning around load-bearing and mechanical obstacles.

The Harwinton, CT homeowners’ guide to basement remodels

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