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  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon41
    Verified basement remodels reviews

Find Basement remodelers in Cornwall

Avatar for John's Proworks Interiors, LLC
John's Proworks Interiors, LLC
4.1(
52
)
Basement - Remodel

Serving Cornwall, NY and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Basement Renovation. Work began on Feb 3. The Government imposed a work stoppage due to Covid-19 on Mar 22. Work resumed on May 15. Work completed on Jun 8. Proworks did an outstanding job renovating our basement. John and his team efficiently completed each phase providing design tips and suggestions along the way as we requested changes here and there during the build process. We would use Proworks again and highly recommend them!"
Bathroom Renovation
bathroom
Basement
Outdoor Pool Deck Flooring and Railing
Bathroom Floor Tile

+29

Response time2 days
10 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Proworks Interiors
Proworks Interiors
5.0(
6
)
Basement - Remodel

Serving Cornwall, NY and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"We highly recommend Proworks interiors ! John responded to our inquiry for a finished basement quickly and was at our house to provide an estimate within 24 hours. He is very detail oriented , and was extremely helpful in creating a plan for our space. Throughout the entire process, he was a great communicator, promptly responding to all of our questions and concerns . He made sure every detail was exactly to our liking. We would definitely use proworks interiors again !"
Bathroom Remodel
Fireplace Wall
Fireplace wall
Bathroom Remodel
Basement Bar

+25

Response rate100%
Recommended by100%of homeowners
Kevin Babcock General Contracting
4.9(
49
)
Basement - Remodel

Serving Cornwall, NY and surrounding areas

Approved

In business since 1984

Free estimates

Offers commercial services

"From the second Kevin walked in for our estimate I could tell he was genuine and not trying to oversell or take advantage. Our project was a basement remodel for my mother who was moving in. The entire experience was wonderful, from start to finish. His team is amazing, super dedicated and we were involved in every step along the way. Kevin was always right there talking my mom through what she needed, helped her pick out her finishing touches, and even suggested we add/remove things from the remodel we would have never thought of doing on our own. He never once made us feel like we were asking too much and ANYTIME I had a question or concern he always got back to me same day. His work is top notch and his team is filled with the kindest group of men I have ever met. I didnt always make it easy, but they always delivered. We could not be more thrilled with the way things turned out, down to the last details, and would 100% call Kevin and his guys back for any future contracting needs."
Response time1 day
11 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Lilco Construction Inc
Lilco Construction Inc
5.0(
5
)
Basement - Remodel

Serving Cornwall, NY and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"Lilco has done numerous jobs here to our Satisfaction. Owner is honest, knowledgeable about various home construction projects and easy to work with. Bring your own vision or let him help you bring a general goal/vision to life. He’s been able to help me troubleshoot with success."
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Jafet Home Improvement LLC
Jafet Home Improvement LLC
5.0(
3
)
Basement - Remodel

Serving Cornwall, NY and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

At Jafet Home Improvement LLC, we specialize in high-quality residential remodeling focused on full renovations—not quick fixes. We handle complete bathroom, kitchen, and basement projects from demolition to final finishes, delivering clean, modern, and long-lasting results while increasing not only the comfort of your home but also its overall value.\n\nOur services include bathroom remodeling, kitchen renovations, basement finishing, interior painting, and flooring installation.\n\nWe are not a handyman service—we work with homeowners ready to invest in professional work done right. We pride ourselves on attention to detail, clear communication, and reliable timelines.\n\nIf you're planning a serious renovation, contact us to schedule an in-person estimate.\n\n\n

Response time4 days
Response rate88%
1 neighbors recently requested a quote
Avatar for FJMG Home improvement
FJMG Home improvement
5.0(
2
)
Basement - Remodel

Serving Cornwall, NY and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"Joel is a very decent hard working gentleman. He cleans up after every job , and work very well . I just rented my apartment and I trusted him to go there and do all furniture assemble. Very humble . I recommend him to anyone who needs his service ."
Bathroom renovation
Bathroom renovation
Bathroom renovation
Bathroom renovation
Bathroom renovation

+10

6 neighbors recently requested a quote
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Basement Remodel questions, answered by experts

Yes, you can add a bathroom to an unfinished basement, but you’ll want to take proper precautions if doing so. As with any bathroom addition, you’ll need to make sure that it’s approved by local building authorities first. With unfinished basements, you especially need to keep an eye on proper ventilation practices.

If you have the woodworking experience to build a bar from scratch and you have the time, DIYing the work is a no-brainer and can save a few thousand dollars. However, if you’re looking to include a sink, additional lighting fixtures, or high-end bar tops and cabinets, it’s usually a better idea to call in a pro. It will cost more, but the finished product will likely be worth it.

Whether it’s more affordable to gut a house than build a new one depends on the markets where you'd be buying and selling. However, it’s usually less expensive to renovate a home than to build new construction. 

Most homeowners pay between $100,000 and $200,000 for demolition and remodeling costs, whereas the average cost to build a new home is between $139,000 and $531,300.

Making a window in a basement larger costs an average of $4,200. You’ll need to pay an average of $550 to have a structural engineer plan the project, $500 to $1,500 for the installation labor, and an average of $2,200 for the excavation and window well installation. The remainder will go toward pulling permits, installing trim, and repairing drywall on the interior.

The best type of basement ventilation system depends on your budget, the moisture in your basement’s air, and the types of windows you have down there. You should consider all of these factors when choosing a ventilation system. However, the most effective method for basement ventilation is an energy recovery ventilator (ERV) or a whole-house ventilation system, which preheats or precools incoming air from the outside while also managing water vapor.

The Cornwall, NY homeowners’ guide to basement remodels

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