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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon67
    Verified basement remodels reviews

Top-Rated Basement remodelers in Seymour - Updated Nov 2026

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

Serving Seymour, 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."
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+12

168 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Emerald Construction LLC
Emerald Construction LLC
4.9(
44
)
Basement - Remodel

Serving Seymour, CT and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

Emerald Construction LLC is a professional company specializing in construction and renovation for residential and commercial clients. Our experienced team of contractors, designers, and project managers focuses on new construction, remodeling, and property improvements, ensuring top-notch craftsmanship and customer satisfaction. We provide services such as custom home building, kitchen and bathroom renovations, commercial build-outs, and exterior improvements like roofing, siding, and landscaping. We are known for our attention to detail, premium materials, and timely, budget-friendly project completion. With a client-focused approach, we collaborate with homeowners, business owners, and developers to realize their visions. Whether you need a complete property transformation or a simple upgrade, Emerald Construction LLC offers reliable, efficient, and innovative solutions tailored to your needs.

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+6

2 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for K & X Services, LLC
K & X Services, LLC
4.9(
62
)
Basement - Remodel

Serving Seymour, CT and surrounding areas

Approved

In business since 2017

Free estimates

Small jobs welcome

"I've got a 112 year old hose that is pretty solid, but it had a cracked floor joist and part of the flooring wasn't properly supported. I hired Kristian and his team to install a couple of lally columns to support a carrying beam and sister a couple of floor joists. Many contractors wouldn't even return my call because I wasn't looking to complete a huge remodel job, but Kristian came over, gave me a fair verbal estimate on the spot, and worked with me on timing to complete the project. Not only that, but the solution wasn't overly complicated. The job was straightforward, completed exactly as described in the time described, and there was no scope creep. If I ever have a larger need, they'll certainly be my first call. I would highly recommend K&X construction if you need any services that they offer."
Basement remodel
Addition
Porch enclosure
Response time2 days
Response rate88%
Recommended by95%of homeowners
Avatar for SRC Partners
SRC Partners
5.0(
6
)
Basement - Remodel

Serving Seymour, CT and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

New Home & Remodeling Contractor with the staff and Knowledge to customize your home on time and on budget. Licensed and Insured since 2015 with over 25 years experience in the new construction business. Let our on staff design team build or remodel the home of your dreams!!

North Haven Addition
Before Picture
North Haven Addition
Pantry area complete
Before Picture

+3

Response time1 day
Recommended by100%of homeowners
Avatar for Plow and Property Projects, LLC
Plow and Property Projects, LLC
4.3(
84
)
Basement - Remodel

Serving Seymour, 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
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Basement Remodel FAQs, answered by experts

A finished basement does not always count as square footage, as this varies by state regulations. In areas that allow below-grade spaces to be included in a home's official square footage, the basement must typically meet certain conditions. These conditions often include having a functional egress and being a livable space with flooring, finished walls, and temperature control. To be certain, contact your local assessor to confirm your area's specific policies regarding basement square footage.

Yes, barndominiums can have basements. Barndominiums are typically built over concrete slabs, so barndo basements are not very common. However, it is possible to include a basement in a barndominium blueprint as long as you’re building completely from scratch. Barndos can have the same types of basements as traditional homes, including full or walk-out basements.

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. 

Egress windows or doors are required in finished basements to meet safety and building codes. If your basement is unfinished and used as a storage space, egress windows are not required, but anything considered a habitable space must have an additional point of egress in addition to the stairs.

You should plan on waiting at least a year and ideally two to three years after construction before finishing your basement. This will give the foundation time to settle in response to the weight of your home and the expansion of the surrounding soil. You can then repair your foundation and seal any cracks as needed before finishing it to reduce your risk of future leaks or other issues.

The Seymour, CT homeowners’ guide to basement remodels

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