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Top-Rated Basement remodelers in Katonah - Updated Nov 2026

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

Serving Katonah, NY 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
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+12

177 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for VAP Contracting LLC
VAP Contracting LLC
4.9(
127
)
Basement - Remodel

Serving Katonah, NY and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"My wife and I were looking for a contractor to remodel our master bathroom. We were looking for someone that was knowledgeable, honest, fair in pricing, and great with communication. Victor from VAP Contracting was exactly that. Victor told us exactly when he would start, what he would need, and always answered any questions that we had. His team arrived every morning on time and was very polite. They were very neat and cleaned up each day and truly did an amazing job! Our new bathroom looks great. Victor stands behind his work and we look forward to working with them again on other projects that we have."
Kitchen Remodel
Kitchen Renovation
Kitchen Renovation
Kitchen Renovation
Kitchen Renovation

+11

Response time3 days
Response rate100%
3 neighbors recently requested a quote
Avatar for Above & Beyond Contracting
Above & Beyond Contracting
4.8(
81
)
Basement - Remodel

Serving Katonah, NY and surrounding areas

Approved

In business since 2004

Free estimates

Warranties offered

"We live in Bronxville, where the expectation are high for quality of work done on houses. Bud, and team, did an amazing job with a pretty large job. It was a full basement remodel, down to the studs, and he was great to work with. Really appreciate his professionalism and quality. I would recommend him fully, even for jobs that are larger and require a high level of finish quality."
Vanity and tub
Stand Up Shower
Shower fixtures
Kitchens
Additional Photos

+16

Response rate100%
6 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Hire Her Home Improvement Inc.
Hire Her Home Improvement Inc.
4.7(
331
)
Basement - Remodel

Serving Katonah, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Warranties offered

"We had our kitchen completely remodeled by Hire Her Home Improvement. Angela and her crew were very professional and responsive throughout the whole process. They were punctual, efficient, and always left the house clean when they left for the day. They were very respectful of our home. The job was completed on time and the kitchen came out beautiful! Angela was always available to answer any questions and always kept us updated. She is very knowledgeable, patient, and a pleasure to talk to. All the costs were clearly communicated and there were no surprises. I would highly recommend Hire Her for any home remodel or repair!"
Additional Photos
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+2

Response time7 hrs
9 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Modo Renovations, LLC
Modo Renovations, LLC
5.0(
34
)
Basement - Remodel

Serving Katonah, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Offers commercial services

"Modo Renovation did a great job on my bathroom remodel. Spenser was reponsive throughout and kept me updated on progress. Pricing was transparent and fair. I would definitely recommend him/them."
fireplace built in
kitchen
kitchen
Upper west side reno
Bathroom

+257

Response time4 hrs
Response rate100%
11 neighbors recently requested a quote
Avatar for Guardian Remodeling Corp.
Guardian Remodeling Corp.
5.0(
9
)
Basement - Remodel

Serving Katonah, NY and surrounding areas

Approved

In business since 2000

Free estimates

Offers commercial services

"We had Guardian Remodeling redo our basement in Carmel. Tim was our main point of contact and was great throughout the job. Whenever something came up, he was quick to respond and figure it out. The basement looks completely different now and we’re really happy with the work. Good guys and easy to deal with."
After
After
Before
Work
Work

+14

Response time5 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Economy Handy Carpenter, LLC
Economy Handy Carpenter, LLC
4.6(
331
)
Basement - Remodel

Serving Katonah, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"Nixon was amazing. I never have good experiences with handymen but he was able to fix my front door, weatherproof my doors, and fix my dehumidifier basement issue that have been huge issues before now. He’s reliable and does a great job. Highly recommend!"
Response time10 hrs
66 neighbors recently requested a quote
Recommended by91%of homeowners
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FAQs for basement remodeling projects in Katonah, NY

Finishing a basement turns unused square footage into livable space and returns up to 70% of what you spend when you sell your home. Beyond that resale boost, you gain a playroom, home office, or guest suite you can start enjoying right away. That mix of daily comfort and solid return on investment (ROI) makes basement finishing one of the smartest upgrades you can tackle.

In some parts of the country—especially lots on swamps, high water tables, or other wetlands—local codes prohibit basements. Saturated soil puts constant pressure on foundation walls and lets water seep in faster than any sump pump can handle. 

If your property sits on waterlogged ground, building on a slab or crawl space is often safer, more affordable, and code-compliant.

Most basements wrap up in four to eight weeks. Framing takes three to five days, with electrical and plumbing rough-ins following over the next week. Add five days for drywall, two to three for flooring, and another week for paint, trim, and punch-list items. 

Delays can happen if materials run late or your contractor’s calendar is packed, so build in a little cushion when you plan.

Whether a finished basement counts toward your home’s official square footage depends on local rules. Many areas only include below-grade space if it has code-approved egress, fully finished walls, ceilings, and floors, plus consistent heating. 

Check with your local assessor or building department before you start; meeting those standards can affect taxes, appraisals, and resale value.

Building codes require a checklist: dedicated heat and electrical service, a code-approved stairway, and at least one egress window or exterior door. Walls, ceilings, and floors must be fully finished and meet insulation, ventilation, and fire-separation standards. If you add a bedroom, you’ll also need a closet, proper clearances, and safe exits. If you change the layout later, be ready to update the space so every new room still meets today’s code.

The Katonah, NY homeowners’ guide to basement remodelings

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