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Best basement remodelers near Longboat Key, FL

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Top-Rated Basement remodelers in Longboat Key - Updated Nov 2026

Avatar for CER Design Build
CER Design Build
4.8(
21
)
Basement - Remodel

Serving Longboat Key, FL and surrounding areas

In business since 2000

Free estimates

Emergency services offered

""I am very pleased with the work of Cer Custom Renovations. The guys did a quality job on Remodeling for my project. All work was completed on time without delays or shortcomings. I will recommend the company to my friends and business colleagues. Thank you for the good work!""
Custom cabinets
Chefs kitchen
Master bath
Theater
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+22

Recommended by95%of homeowners
Avatar for Bob Kontout
Bob Kontout
4.5(
144
)
Basement - Remodel

Serving Longboat Key, FL and surrounding areas

In business since 1994

Free estimates

"Beautifully! I received good suggestions for choices on cabinetry and lighting and, where to look for the floor tile and lighting. I made my own decisions and the work was done efficiently and on time. I would not hesitate to recommend Residential Services to anyone looking to remodel a kitchen, baths and flooring and lighting upgrades."
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+1

Recommended by92%of homeowners
Avatar for Tampa Bay Marble and Design
Tampa Bay Marble and Design
4.7(
174
)
Basement - Remodel

Serving Longboat Key, FL and surrounding areas

In business since 2000

Free estimates

Credit card accepted

"Remodeling our kitchen was an interesting experience and we were very happy with the result. Since first day Jess was very helpful and transparent with the information we needed and was always available for any question we might had. He and his team did everything to make the experience as smooth and efficient as possible. It only took 2 weeks to complete the remodeling and they were very professional and always on time with the schedule."
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+28

Recommended by94%of homeowners
Avatar for Joe Boyer Home Repair and Installations LLC
Joe Boyer Home Repair and Installations LLC
5.0(
13
)
Basement - Remodel

Serving Longboat Key, FL and surrounding areas

In business since 1980

Free estimates

Emergency services offered

"I HAVE USED JOE BOYER'S CO. ON NUMEROUS REMODEL PROJECTS. JOE'S CO. IS TOP SHELF FROM START TO FINISH. HIS WORK IS VERY PROFESSIONAL. HE IS GREAT TO WORK WITH. ALWAYS ON TIME AND RETURNS PHONE CALLS RIGHT AWAY. WHEN HE COMPLETES A PROJECT THE JOBSITE IS SPOTLESS. I USUALLY DON'T MAKE RECOMMENDATIONS. I KNOW JOE'S WORK ETHICS AND I HAVE NO PROBLEM GIVING JOE HIGH MARKS FOR HIS PROFESSIONALISM. UNFORTUNATELY, I MOVED ACROSS COUNTRY AND NO LONGER HAVE ACCESS TO JOE BOYER'S SERVICES."
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+3

Recommended by100%of homeowners
Avatar for Omkal Construction, Inc.
Omkal Construction, Inc.
4.8(
61
)
Basement - Remodel

Serving Longboat Key, FL and surrounding areas

In business since 2001

Free estimates

"Oleg and Omkal Construction did an amazing job on our remodel and repair work. Shortly after settling on our home we found major termite damage. Oleg and team removed the damaged joists, took down a wall and installed a new I-Beam giving them a an amazing open floor plan with which to do our remodel. Oleg is responsive, timely and does great work. I would not hesitate to use him again!"
Roberts rd
Roberts rd
Roberts rd
Roberts rd
Roberts rd

+74

Recommended by100%of homeowners
Avatar for eMaintenance Inc.
eMaintenance Inc.
5.0(
13
)
Basement - Remodel

Serving Longboat Key, FL and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"Emaintenance company was so helpful in making our home remodeling stress free. They painted our home from top to the bottom ( ceiling, walls, baseboards). The owner of this company is very nice. He totally worked unsupervised while we were in Virginia. He suggested colors for our walls, it looks amazing. They did such a wonderful job with our home. It is so nice to find people with exceptional work ethics and experience. We highly recommend them for high-end projects you may have."
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+39

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

Joists and beams are both part of the flooring system above your basement, with the beams spanning the length of your home and getting support from vertical posts underneath, and joists usually spanning half the width of your home with no support posts underneath. The floor joists provide even support to the subflooring and flooring above, and they distribute that load to the beams. The beams then distribute that load down through the support posts to the foundation.

Roughing in and connecting utilities are the hardest parts of finishing a basement, and they’re the parts we typically don’t recommend doing as a DIY project. Unfortunately, your finishing timeline can be extended by weeks while you wait for contractors and inspectors to install electrical wiring, plumbing lines, and heating/cooling equipment and carry out inspections.

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.

Adding a bathroom to your basement can increase your home value since homes with multiple bathrooms sell for more. The return on investment (ROI) for a basement bathroom is 50% to 75%. The actual return varies with your home and location. Adding a half bath to your home increases the value by 2.9% while finishing a basement increases the home value by 6.6%.

The most challenging part of finishing a basement is addressing moisture control. Basement waterproofing is an essential task that requires a professional’s skills and knowledge. If you don’t properly waterproof your finished basement, it’ll be vulnerable to dampness, water damage, and mold growth. Ensuring proper insulation and ventilation to combat these issues while meeting building codes adds complexity to your remodeling project.

The Longboat Key, FL homeowners’ guide to basement remodels

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