Top-rated basement remodelers.

Get matched with top basement remodelers in Bethel, CT

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Basement remodelers in Bethel

Avatar for Design By Day, LLC

Design By Day, LLC

4.38(
8
)
•Approved Pro

Design By Day, LLC

4.38(
8
)
•Approved Pro
Customers say: Quality work
16 years of experience
Free onsite estimate

We are a locally owned and operated company with over 30 years of industry experience. We specialize in kitchen & bathroom remodels, and expanding living space by finishing your basement, or completing an addition. We offer a wide range of expertise for a variety of other home improvement projects decks, master suites and improving living spaces using open concept to re-imagine your home. We pride ourselves on the quality of our work as well as our commitment to outstanding results. Every project gets a complete design so you can see it on paper and make changes that work. We look forward to building lasting relationships and guarantee your satisfaction! We are a bilingual company, and are happy to serve both our English and Spanish speaking communities!

"Eva is a true a professional, very thorough and helped us navigate through the covid process. She went through every point of the project with us prior to starting and updated us daily when she stopped in to check on progress and quality of the crew. She was very involved with all the details of the project and nothing was too small for her to discuss with us. From the start of our kitchen and bath remodel, she saw it through to a beautiful completion. Having worked with Eva on past projects such as our basement remodel, we highly recommend Eva and her crew; she is a pleasure to work with and a true professional."

michele s on October 2020

We are a locally owned and operated company with over 30 years of industry experience. We specialize in kitchen & bathroom remodels, and expanding living space by finishing your basement, or completing an addition. We offer a wide range of expertise for a variety of other home improvement projects decks, master suites and improving living spaces using open concept to re-imagine your home. We pride ourselves on the quality of our work as well as our commitment to outstanding results. Every project gets a complete design so you can see it on paper and make changes that work. We look forward to building lasting relationships and guarantee your satisfaction! We are a bilingual company, and are happy to serve both our English and Spanish speaking communities!

"Eva is a true a professional, very thorough and helped us navigate through the covid process. She went through every point of the project with us prior to starting and updated us daily when she stopped in to check on progress and quality of the crew. She was very involved with all the details of the project and nothing was too small for her to discuss with us. From the start of our kitchen and bath remodel, she saw it through to a beautiful completion. Having worked with Eva on past projects such as our basement remodel, we highly recommend Eva and her crew; she is a pleasure to work with and a true professional."

michele s on October 2020

Avatar for Belinquete

Belinquete

5.00(
3
)
•Approved Pro

Belinquete

5.00(
3
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
28 local quotes requested

Belinquete is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business

"David and his crew were on time , professional, and affordable. The work was beautiful and they cleaned up beyond my expectations. I would definitely hire them again!"

Jarred M on October 2024

Belinquete is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business

"David and his crew were on time , professional, and affordable. The work was beautiful and they cleaned up beyond my expectations. I would definitely hire them again!"

Jarred M on October 2024

Avatar for H & A HOME IMPROVEMENT LLC

H & A HOME IMPROVEMENT LLC

5.00(
5
)
•Approved Pro

H & A HOME IMPROVEMENT LLC

5.00(
5
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 years of experience

At H & A HOME IMPROVEMENT LLC, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts and will always keep you educated about the work process. We look forward to earning your business.

"Was an overall good experience. Howard's expertise, skill and knowledge is unmatched. He was professional and his prices were reasonable. I would definitely recommend him for excellent affordable carpentry."

Shauntal E on April 2024

At H & A HOME IMPROVEMENT LLC, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts and will always keep you educated about the work process. We look forward to earning your business.

"Was an overall good experience. Howard's expertise, skill and knowledge is unmatched. He was professional and his prices were reasonable. I would definitely recommend him for excellent affordable carpentry."

Shauntal E on April 2024

Joseph Giglio Construction

5.00(
4
)
•Approved Pro

Joseph Giglio Construction

5.00(
4
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
54 years of experience

Accomplish your construction goals easily with the help of Joseph Giglio Construction. Our licensed experts are always ready to assist you with any renovation or building project. Whether you want a custom home or new drywall installed in your office, our team has the skills to get the job done. Call us today!

"I have used them for 25 years there work is beyond reproach."

Leonard L on April 2017

Accomplish your construction goals easily with the help of Joseph Giglio Construction. Our licensed experts are always ready to assist you with any renovation or building project. Whether you want a custom home or new drywall installed in your office, our team has the skills to get the job done. Call us today!

"I have used them for 25 years there work is beyond reproach."

Leonard L on April 2017

Avatar for JM Construction

JM Construction

4.69(
21
)
•Approved Pro

JM Construction

4.69(
21
)
•Approved Pro
Super Service Award
Customers say: Terrific value
21 local quotes requested
33 years of experience

JM Construction has over twenty years of experience in residential interior and exterior remodeling. They provide high-quality and efficient services to Fairfield County with emphasis on customer service. For your next residential remodeling project, give JM Construction a call today!

"Joe and his team at JM Construction performed a full Master bath remodel in our home this winter. Following an initial visit, Joe understood our vision for the bathroom and laid out a precise plan for getting the job done. He and his team worked diligently to execute the plan and he was always there to consult and advise us of progress. Near the end of the project, we encountered a frosen pipe issue due to the very cold winter we have been having. Joe and his plumber moved fast to locate and replace the frozen pipe so that the project could continue. They went above and beyond by replacing a portion of the frozen pipe, while adding insulation and superb painting to get the project moving forward again. No time was lost. The new bathroom is phenomenal and I can't say enough good things about JM Construction. I have already recommended his company to my friends and family. 5 Stars all around. "

Jim L on February 2026

JM Construction has over twenty years of experience in residential interior and exterior remodeling. They provide high-quality and efficient services to Fairfield County with emphasis on customer service. For your next residential remodeling project, give JM Construction a call today!

"Joe and his team at JM Construction performed a full Master bath remodel in our home this winter. Following an initial visit, Joe understood our vision for the bathroom and laid out a precise plan for getting the job done. He and his team worked diligently to execute the plan and he was always there to consult and advise us of progress. Near the end of the project, we encountered a frosen pipe issue due to the very cold winter we have been having. Joe and his plumber moved fast to locate and replace the frozen pipe so that the project could continue. They went above and beyond by replacing a portion of the frozen pipe, while adding insulation and superb painting to get the project moving forward again. No time was lost. The new bathroom is phenomenal and I can't say enough good things about JM Construction. I have already recommended his company to my friends and family. 5 Stars all around. "

Jim L on February 2026

Avatar for JR General Contractor, LLC

JR General Contractor, LLC

4.83(
15
)
•Approved Pro

JR General Contractor, LLC

4.83(
15
)
•Approved Pro
Customers say: Quick response
16 years of experience
Free onsite estimate

JR General Contractor LLC, is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"Yes they did an excellent job"

Louise R on May 2025

JR General Contractor LLC, is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"Yes they did an excellent job"

Louise R on May 2025

Cal Construction Services LLC

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

Cal Construction Services LLC

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
26 years of experience
Free onsite estimate

We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Being a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!

We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Being a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!

Henry Showah Construction, LLC

4.80(
13
)
•Approved Pro

Henry Showah Construction, LLC

4.80(
13
)
•Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
11 local quotes requested

Henry Showah Construction can skillfully design and remodel all types of projects. We take pride in our attention to detail. Please give us a call to set up an appointment.

"We contracted Henry as our GC to lead a 175K addition/renovation of our home. We added a master suite (w/ walk-in closet), another bedroom, a play/rec-room, and a workshop. We also took down the walls of an existing room to open up the common areas and built a hallway of pocket doors. We found him to be a great communicator. His subs were professional and courteous. Highly recommend him for others and would be happy to hire him again for future projects."

Peter D on January 2021

Henry Showah Construction can skillfully design and remodel all types of projects. We take pride in our attention to detail. Please give us a call to set up an appointment.

"We contracted Henry as our GC to lead a 175K addition/renovation of our home. We added a master suite (w/ walk-in closet), another bedroom, a play/rec-room, and a workshop. We also took down the walls of an existing room to open up the common areas and built a hallway of pocket doors. We found him to be a great communicator. His subs were professional and courteous. Highly recommend him for others and would be happy to hire him again for future projects."

Peter D on January 2021

Avatar for Owens Corning Basement Finishing System

Owens Corning Basement Finishing System

4.75(
73
)
•Approved Pro

Owens Corning Basement Finishing System

4.75(
73
)
•Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
107 local quotes requested

Lux Renovations, LLC, has been serving New England homeowners since 2002. We've finished over 8000 basements in New England, usually in 2-3 weeks. Our dedication to customer experience and satisfaction has won us Owens Corning's top customer service ranking nationally for the last 8 years in a row. Something like that does not happen by accident. We are committed to insuring that all of our customers describe their experience with us as "the best contractor experience I ever had". If you are considering a basement finishing project please allow us to show you how Owens Corning has changed the industry with this unique system. A no-charge consultation and design is available. Give us a call today!

"Lux project manager and staff were great! Great attention to detail."

Brian C on December 2022

Lux Renovations, LLC, has been serving New England homeowners since 2002. We've finished over 8000 basements in New England, usually in 2-3 weeks. Our dedication to customer experience and satisfaction has won us Owens Corning's top customer service ranking nationally for the last 8 years in a row. Something like that does not happen by accident. We are committed to insuring that all of our customers describe their experience with us as "the best contractor experience I ever had". If you are considering a basement finishing project please allow us to show you how Owens Corning has changed the industry with this unique system. A no-charge consultation and design is available. Give us a call today!

"Lux project manager and staff were great! Great attention to detail."

Brian C on December 2022

Avatar for A2Z Contractors, LLC

A2Z Contractors, LLC

4.71(
123
)
•Approved Pro

A2Z Contractors, LLC

4.71(
123
)
•Approved Pro
Customers say: True professional
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
16 years of experience

A2Z Contractors, LLC specializes primarily in Finish Carpentry and Exterior work. We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Weslyn and his team were amazing. He worked with me closely every step of the way. From picking out floors designing the layout picking the cabinets all before signing with him. He worked with me on my ideas and made them a reality. His team was professional and courteous. There have been small tweaks needed after completion due to normal settling which he was quick to have addressed. I would highly recommend his company "

Debbie P on January 2026

A2Z Contractors, LLC specializes primarily in Finish Carpentry and Exterior work. We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Weslyn and his team were amazing. He worked with me closely every step of the way. From picking out floors designing the layout picking the cabinets all before signing with him. He worked with me on my ideas and made them a reality. His team was professional and courteous. There have been small tweaks needed after completion due to normal settling which he was quick to have addressed. I would highly recommend his company "

Debbie P on January 2026

...
Showing 1-10 of 1035
FAQs for basement remodeling projects in Bethel, CT

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 Bethel, CT homeowners’ guide to basement remodelings

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

See all articles