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  • Verified reviews icon61
    Verified basement remodels reviews

Find Basement remodelers in Watertown

Avatar for DiOrio Builders & Designers Inc

DiOrio Builders & Designers Inc

4.58(
125
)
Approved Pro

DiOrio Builders & Designers Inc

4.58(
125
)
Approved Pro
Customers say: Quality work
24 local quotes requested
59 years of experience

DiOrio Builders and Designers Inc. is a fully licensed and insured company committed to providing homeowners with the highest level of craftsmanship. Built on old fashioned values we are experienced specialists that will complete your project to exact specifications in a timely manner. Quality work is our priority while paying special attention to detail. No job is too big or too small.

"They gave a good estimate of work to be completed and contract laid everything out clearly and completely. They were well organized and had great communication. They kept the job site clean each day and the work was well done."

Melissa C on October 2025

DiOrio Builders and Designers Inc. is a fully licensed and insured company committed to providing homeowners with the highest level of craftsmanship. Built on old fashioned values we are experienced specialists that will complete your project to exact specifications in a timely manner. Quality work is our priority while paying special attention to detail. No job is too big or too small.

"They gave a good estimate of work to be completed and contract laid everything out clearly and completely. They were well organized and had great communication. They kept the job site clean each day and the work was well done."

Melissa C on October 2025


Avatar for Coen Construction

Coen Construction

4.25(
12
)
Approved Pro

Coen Construction

4.25(
12
)
Approved Pro
Customers say: Terrific value
98 local quotes requested
14 years of experience

We are a full service residential construction and remodeling company. Our goal is to exceed all of our clients expectations through exceptional customer service and quality craftsmanship. We work with some of the best tradesmen in the industry to deliver a quality finished product. From deck and porch builds to siding and windows, we can do it all. Contact us for an estimate on your project today! Check out our instagram for photos and updates @coenconstruction

"I recently hired Coen Brothers Construction on a thorough bathroom renovation, and the outcome was outstanding. Their quality was excellent, and I am delighted with the final result. Their sub-contractors were also great and worked at the same high standards as the Coen Brothers. Although we faced some communication issues at the outset, we eventually worked through them, and it significantly improved throughout the project. They paid attention to detail; when my project manager saw me stripping the trim for reuse, they recommended buying new trim and a lumber yard to get it. And it makes a big difference having new trim with clean, sharp lines. Their tile work took longer than expected, but the miter cuts the trim cuts, and the finish is excellent. They were consistently punctual, respectful of my home, and very tidy - tidying up at the end of each day. While the project took longer than anticipated, the reasonable cost and the team's meticulous attention to detail compensated for it. Coen Brothers Construction also expertly handled all necessary permits and inspections, keeping me informed every step of the way. Overall, I am satisfied with their work and would hire them again for my next project."

Matthew W on May 2023

We are a full service residential construction and remodeling company. Our goal is to exceed all of our clients expectations through exceptional customer service and quality craftsmanship. We work with some of the best tradesmen in the industry to deliver a quality finished product. From deck and porch builds to siding and windows, we can do it all. Contact us for an estimate on your project today! Check out our instagram for photos and updates @coenconstruction

"I recently hired Coen Brothers Construction on a thorough bathroom renovation, and the outcome was outstanding. Their quality was excellent, and I am delighted with the final result. Their sub-contractors were also great and worked at the same high standards as the Coen Brothers. Although we faced some communication issues at the outset, we eventually worked through them, and it significantly improved throughout the project. They paid attention to detail; when my project manager saw me stripping the trim for reuse, they recommended buying new trim and a lumber yard to get it. And it makes a big difference having new trim with clean, sharp lines. Their tile work took longer than expected, but the miter cuts the trim cuts, and the finish is excellent. They were consistently punctual, respectful of my home, and very tidy - tidying up at the end of each day. While the project took longer than anticipated, the reasonable cost and the team's meticulous attention to detail compensated for it. Coen Brothers Construction also expertly handled all necessary permits and inspections, keeping me informed every step of the way. Overall, I am satisfied with their work and would hire them again for my next project."

Matthew W on May 2023


"W.Day Contracting did a full bathroom remodel, (walk-in tile shower, new tile floor, new vanity, toilet, closet, exhaust fan) rand I was more than happy with the results. He stayed true to the quote, and everything was done perfectly. If you want a new bathroom this company is phenomenal."

Dean D on November 2024

We specialize in residential remodeling. Whether it be kitchen, baths, or basements, we strive to deliver an excellent finished product in a timely manner. Our team of professionals are here to meet any of your remodeling needs.

"W.Day Contracting did a full bathroom remodel, (walk-in tile shower, new tile floor, new vanity, toilet, closet, exhaust fan) rand I was more than happy with the results. He stayed true to the quote, and everything was done perfectly. If you want a new bathroom this company is phenomenal."

Dean D on November 2024


"10/10 recommend! Communication was excellent and their creative take on maximizing the space made the biggest difference! Looking forward to working with them again in the near future."

Tina U on October 2024

Family owned and operated construction company. Specialized in basement refinish and all types of construction services.

"10/10 recommend! Communication was excellent and their creative take on maximizing the space made the biggest difference! Looking forward to working with them again in the near future."

Tina U on October 2024


Joal Construction

4.83(
6
)
Approved Pro

Joal Construction

4.83(
6
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
138 local quotes requested

In every home Joal Construction Corporation designs and builds, we try to create a truly one of a kind structure. We weave together the owners choices, personal style and dreams…truly custom, not customized. Our years of experience in design and building in this area gives us a true perspective on what the customer wants and expects. We spend a great deal of time each week researching what’s new and exciting. It’s the details and the service that make all the difference. Our homes and projects stand out, are different, are truly unique. Our customer service is second to none. If you are looking to build, remodel or add on, call us to experience the “Joal Construction” difference—You will be glad you did!

"His helper did a good job. Al came after job was done to check the work."

Joanie W on October 2024

In every home Joal Construction Corporation designs and builds, we try to create a truly one of a kind structure. We weave together the owners choices, personal style and dreams…truly custom, not customized. Our years of experience in design and building in this area gives us a true perspective on what the customer wants and expects. We spend a great deal of time each week researching what’s new and exciting. It’s the details and the service that make all the difference. Our homes and projects stand out, are different, are truly unique. Our customer service is second to none. If you are looking to build, remodel or add on, call us to experience the “Joal Construction” difference—You will be glad you did!

"His helper did a good job. Al came after job was done to check the work."

Joanie W on October 2024


Avatar for Cupertino Construction

Cupertino Construction

4.86(
7
)
Approved Pro

Cupertino Construction

4.86(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 local quotes requested

Cupertino Construction is father son business that specialize in home renovations, remodels, and repairs. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!

"The Cupertino guys are honest and hardworking and reasonably priced. We've been pleased to have them working on various projects we have around a house we recently bought. We hired them to build a wall to divide a room, and they did a great job, so we asked them to do a few other things. Would recommend them to anyone and fully plan on hiring them for several more projects."

Jef O on February 2022

Cupertino Construction is father son business that specialize in home renovations, remodels, and repairs. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!

"The Cupertino guys are honest and hardworking and reasonably priced. We've been pleased to have them working on various projects we have around a house we recently bought. We hired them to build a wall to divide a room, and they did a great job, so we asked them to do a few other things. Would recommend them to anyone and fully plan on hiring them for several more projects."

Jef O on February 2022


Prime Labor Corp.

5.00(
4
)
Approved Pro

Prime Labor Corp.

5.00(
4
)
Approved Pro
Customers say: Quick response
1 years of experience
Free onsite estimate

We at PRIME LABOR CORP. focus on quality services over quantity. We use our experience and expertise to complete your project with perfection. Customer service and honesty are the most important aspects of our business and your satisfaction is guaranteed. Please call us today for an estimate. We look forward to working with you.

"They are amazing to work with. I can't say enough. The made what should have been a much more stressful process, way more efficient! Thank you to the entire Prime team!"

Ann L on November 2024

We at PRIME LABOR CORP. focus on quality services over quantity. We use our experience and expertise to complete your project with perfection. Customer service and honesty are the most important aspects of our business and your satisfaction is guaranteed. Please call us today for an estimate. We look forward to working with you.

"They are amazing to work with. I can't say enough. The made what should have been a much more stressful process, way more efficient! Thank you to the entire Prime team!"

Ann L on November 2024


Avatar for M Builders, LLC

M Builders, LLC

New on AngiNew on Angi
Approved Pro

M Builders, LLC

New on AngiNew on Angi
Approved Pro
4 years of experience
Free onsite estimate

Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed. With 25+ years of experience in construction, Luis Matute and Rony Mendez, longtime friends, decided to put together their skills and found M Builders LLC. Luis holds a General Contractor license, Home improvement license, alongside with other licenses. He has an electrical company and has been supervising construction sites for years now. Rony Mendez, also has an Electrical License with multiple other licenses and has a Security Systems company. He has been supervising construction sites alongside with Luis for years. They have been working together for so long that they do not only consider each other business partners but also family. M Builders is coming to simplify construction for their clients in the State of Massachusetts.

Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. We look forward to serving you. Call us today! You will not be disappointed. With 25+ years of experience in construction, Luis Matute and Rony Mendez, longtime friends, decided to put together their skills and found M Builders LLC. Luis holds a General Contractor license, Home improvement license, alongside with other licenses. He has an electrical company and has been supervising construction sites for years now. Rony Mendez, also has an Electrical License with multiple other licenses and has a Security Systems company. He has been supervising construction sites alongside with Luis for years. They have been working together for so long that they do not only consider each other business partners but also family. M Builders is coming to simplify construction for their clients in the State of Massachusetts.


Avatar for Owens Corning Basement Finishing System

Owens Corning Basement Finishing System

4.83(
332
)
Approved Pro

Owens Corning Basement Finishing System

4.83(
332
)
Approved Pro
Super Service Award
Customers say: True professional
156 local quotes requested
35 years of experience

Lux Renovations, LLC exclusive provider of the Owens Corning Basement Finishing System, has been serving New England homeowners since 2002. Our dedication to customer experience and satisfaction has won us Owens Corning's top customer service ranking nationally for the last 17 years in a row. Something like that doesn't 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 free consultation and design is always available.

"Owens Corning kept us informed and was sure to answer all our questions. Their product speaks for itself. They not only turned our basement into a safer, more efficient space, they also transformed it into a beautiful extension of our home. We are more than satisfied with our investment. "

Melissa R on November 2025

Lux Renovations, LLC exclusive provider of the Owens Corning Basement Finishing System, has been serving New England homeowners since 2002. Our dedication to customer experience and satisfaction has won us Owens Corning's top customer service ranking nationally for the last 17 years in a row. Something like that doesn't 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 free consultation and design is always available.

"Owens Corning kept us informed and was sure to answer all our questions. Their product speaks for itself. They not only turned our basement into a safer, more efficient space, they also transformed it into a beautiful extension of our home. We are more than satisfied with our investment. "

Melissa R on November 2025


Avatar for Crystal General Contracting

Crystal General Contracting

4.95(
100
)
Approved Pro

Crystal General Contracting

4.95(
100
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
58 local quotes requested

Crystal General Contracting is a full-service general contracting company proudly serving the Greater Boston area. We specialize in residential and light commercial projects, offering a wide range of services including interior and exterior painting, kitchen and bathroom remodeling, finish carpentry, general renovations, patios, decks, and ongoing property maintenance. Our team is dedicated to quality craftsmanship, clear communication, and reliable service — from small repairs to full-scale remodels. We take pride in every project, ensuring that each space is built or improved with precision, care, and long-lasting results. Whether you’re updating a single room, remodeling a kitchen or bathroom, managing multiple units, or planning a complete renovation, Crystal General Contracting delivers professional results you can depend on.

"Leo and his crew were some of the most professional painters I have ever worked with. Leo is incredibly responsive and worked with our budget for a full exterior repaint of our house. His team is extremely detail oriented, conscientious, kind and beyond professional. They meticulously cleaned up everyday and were prompt with arriving and staying for the entire day. The job was completed in exactly the timeframe provided and we couldn't be happier with the final result. I would recommend Leo and his team to anyone looking for home improvements - they are outstanding!"

Heather F on November 2025

Crystal General Contracting is a full-service general contracting company proudly serving the Greater Boston area. We specialize in residential and light commercial projects, offering a wide range of services including interior and exterior painting, kitchen and bathroom remodeling, finish carpentry, general renovations, patios, decks, and ongoing property maintenance. Our team is dedicated to quality craftsmanship, clear communication, and reliable service — from small repairs to full-scale remodels. We take pride in every project, ensuring that each space is built or improved with precision, care, and long-lasting results. Whether you’re updating a single room, remodeling a kitchen or bathroom, managing multiple units, or planning a complete renovation, Crystal General Contracting delivers professional results you can depend on.

"Leo and his crew were some of the most professional painters I have ever worked with. Leo is incredibly responsive and worked with our budget for a full exterior repaint of our house. His team is extremely detail oriented, conscientious, kind and beyond professional. They meticulously cleaned up everyday and were prompt with arriving and staying for the entire day. The job was completed in exactly the timeframe provided and we couldn't be happier with the final result. I would recommend Leo and his team to anyone looking for home improvements - they are outstanding!"

Heather F on November 2025

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Basement Remodel questions, 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.

The difficulty of adding a basement to an existing house can vary depending on the house’s location, the size of the basement, and the type and condition of the existing foundation. Adding a basement is a job best handled by the pros, so you’ll need to enlist professional help for this project.

Basements with persistent moisture problems or flooding shouldn’t be finished until the moisture issues have been fixed. In addition, if your foundation is cracked, you have unmitigated radon levels, or you have asbestos or lead pipes, remediate the underlying problem before finishing your basement. Turning a basement into living space before fixing these issues can lead to serious health risks or structural damage. 

It may not come as a surprise that the kitchen is the most expensive room in the house to renovate. This is due to the expensive appliances like the range, hood, and fridge, but also because the bones of the room—like electrical and plumbing—are expensive to move or replace. While there are ways to renovate a kitchen on a budget, it will always carry a hefty price tag, even if you cut some corners.

A finished basement must have a heat and electrical supply with an entrance that meets building code requirements, such as a stairwell to the home's main living space. It often must include finished walls, ceilings, and floors. If the finished basement includes a bedroom, it should have a heat source, an egress window, and a closet.

Remodeling, as opposed to finishing, means altering an already finished basement by adding a bathroom, bedroom, or living area.

The Watertown, MA homeowners’ guide to basement remodels

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