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Best basement remodelers near Jefferson, NY

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Top-Rated Basement remodelers in Jefferson - Updated Nov 2026

Avatar for Top Hat Services
Top Hat Services
5.0(
2
)
Basement - Remodel

Serving Jefferson, NY and surrounding areas

Approved

Emergency services offered

"Team did incredible work on my home I?m so grateful for this team. Not only did I have them remodel my kitchen but because they did such a good job I added a bathroom remodel also had them remodel my patio to a cozy little outdoor relaxation area. 100% would recommend this team for anything you can throw at them!!!!"
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+59

Avatar for High Tech Construction Co
High Tech Construction Co
4.3(
43
)
Basement - Remodel

Serving Jefferson, NY and surrounding areas

In business since 1987

Free estimates

Emergency services offered

"Very well!  The work was done quickly, professionally, and great clean up after the job was completed, we are very pleased with the results and would recommend High Tech and definitely use them again
"
Facade Restoration - High Tech Construction Co
stoop restoration -high tech construction co
Wood Stoop
Limestone Stoop
brownstone stoop and facade restoration

+20

Recommended by81%of homeowners
Avatar for L&L Contracting llc
L&L Contracting llc
4.6(
11
)
Basement - Remodel

Serving Jefferson, NY and surrounding areas

In business since 2017

Free estimates

Emergency services offered

"Wonderful! Phil and Company to the rescue. This job was not an emergency but definitely a high priority. L & L Contracting provided quality work at an extremely reasonable price, I had 5 estimates done. They were straight forward in scheduling, prompt, and professional in conduct. I''m an extremely happy camper and I'd definitely use their services again."
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+26

Recommended by87%of homeowners
Avatar for Homemade Design
Homemade Design
3.7(
322
)
Basement - Remodel

Serving Jefferson, NY and surrounding areas

In business since 2006

Credit card accepted

"Amanda was really very good!  At first I was very skeptical, thinking why did I pay money to just speak with someone on the phone about my kitchen remodel project... but after just a few minutes of her addressing some of the issues/questions I emailed to her earlier, I knew it was worth it.  It was very clear that she knew her business and she gave me several ideas that I had not even thought about.  I told her that I would definitely recommend her to friends and I will very likely use her again myself for my next home project!

"
Pennsylvania Master Bathroom
Boston Small Condo Kitchen
California Client Saves with HMD Designer Discounts
Recommended by54%of homeowners
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Basement Remodel FAQs, answered by experts

Framing a basement takes three to five days, on average, when completed by a professional, though it may take longer for a larger space. Keep in mind this doesn’t include the time to complete the design, obtain permits, and install the drywall on the framing. On average, fully finishing a basement takes an average of 45 days.

A walkout basement is considered to be partially below grade because at least one wall is entirely exposed. In some cases and in specific municipalities, inspectors and appraisers will still count walkout basements as below grade, which means the space can’t serve as living space or be rented out. If you intend on using the area as living space or a separate apartment, you should check with your local building department to make sure it’s legal to do so.

It is generally more affordable to finish a basement than an attic, though it ultimately depends on how you plan to use the space. The average cost to finish a basement ranges from $7 to $23 per square foot, while attic renovation costs $30 to $60 per square foot. However, a simple attic conversion to a storage space will cost significantly less.

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.

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. 

The Jefferson, NY homeowners’ guide to basement remodels

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