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Find Basement remodelers in Chelsea

Avatar for SILMAC Construction Inc.
SILMAC Construction Inc.
4.9(
165
)

Serving Chelsea, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Warranties offered

"Joe and his team did an incredible job, the work was excellent and I appreciated the workmanship and the creative trouble-shooting (it's an old house!) to get excellent results. Everyone on his team was great: skilled, hard-working, friendly, and kind/respectful. Pricing was very reasonable and allowed me to upgrade items like appliances without sacrificing the scope of the remodel, quality, or workmanship. My house is transformed and I could not be happier with the results."
Final
Additional Photos
Additional Photos
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+11

Response time2 days
3 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Crystal Renovations LLC
Crystal Renovations LLC
5.0(
57
)

Serving Chelsea, MA and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"Pedro is the best. Great price, finished on time and on budget. I would recommend him without hesitation. He finished my basement in record time and the quality of the finishing was top-notch. He's also an incredibly nice person to deal with. "
Remodeling - General Project
Additional Photos
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+10

Response time3 days
1 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for MMP Construction Inc
MMP Construction Inc
4.7(
191
)

Serving Chelsea, MA and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"When we started our plan of remodeling, the first thing we did was the complete roof replacement including kitchen vent & duct pipe installation to the roof, and new installation of attic ventilation. MMP did not only completed it just as agreed but also very efficiently. The crews were friendly, professional, and careful. The jobs were carefully managed and implemented effectively. I was impressed by Matt, who is the manager, and he does an outstanding job in managing the crews and the progress of the situation, and the communication was clear and always to the point. We then moved to initiate a search for a contractor of two bathrooms remodeling after completing the roof and attic vent, MMP was one of the many candidates. Matt has had not only the best idea and proposals but also shown an impressive & professional sense of evaluating the project accurately, including the possible structural modification as well as a competitive estimate of the cost of the build. His proposal included a rebuild of a wall of the bathroom to expand another one adjacent to it. Matt accepted to use my schematic design image (made with a software tool) and a spreadsheet list of the fixtures that I created - as many as fifty items including TOTO, Grohe, American Standard, Panasonic, and IKEA - to start the job (later changed some of them due to local plumbing code compliance) After beginning the bathroom remodel project, Matt shared what jobs will be done with us timely and efficiently via text so that we feel comfortable enough in knowing what is going on while living in the house of dust & noise from remodeling. The crews, Zen and Mark, were very courteous, extensively experienced, reliable, and friendly with excellent communication, sometimes with songs of 80s rock music. They ask me when more precise specifications are needed and notified me when they feel advance notifications are required. When a change is necessary due to inspection, they informed me and clarified what and why. I have never felt uncomfortable in living together with the remodel job which has lasted over four months. The completed two bathrooms were stunning, just as I imagined. Matt, Zen, and Mark have proved their strong & thoughtful expertise and lived up with my request patiently until completion. Great job. A home remodeling project cannot be successful without having a trusted partner, and my experience with MMP has led me to be glad to share my confidence that MMP has a credential to become your reliable partner to manage a construction project together."
Additional Photos
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+154

1 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for WS Builders Corp
WS Builders Corp
4.3(
62
)

Serving Chelsea, MA and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"WS builders did a great job renovating my house. The price was fair and they finish the job on time. I really recommend this company."
Addition
Basement renovation
Roof Renovation
KITCHEN REMODELING
2 and 3 Floor Addition

+75

Response time10 hrs
3 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for RC Works
RC Works
4.9(
16
)

Serving Chelsea, MA and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"Andrey and his crew were incredible to work with. I wish I could submit before and after pictures because our bedroom looks incredible! Andrey was committed to a quality final product and had a vision for the room that came to fruition beautifully. While the project took longer than expected, it was absolutely worth every day of work they put into it. Andrey and his crew will hopefully perform every remodeling project we have. We couldn’t be happier with the project. They explained exactly what they would do and executed perfectly. Because they were so committed to the final product, Andrey even split the cost of moving some duct work with us because we were torn on whether to add cost to the project and he wanted us to have the best final product. 10/10 would recommend."
Finished 1
French drain all around the basement, 2 feet deep with perforated pipe and discharge drain well.
Basement waterproofing
Deck and retaining wall
Bathroom Renovation

+293

4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Wizard of Boston
Wizard of Boston
5.0(
4
)

Serving Chelsea, MA and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"Derik and his team were amazing to work with. We refreshed our kitchen and remodeled our basement- both projects we’ve been wanting to do since moving in. This was our first major project as first time homeowners and Derik listened to all of our concerns and answered all of our questions. Our home has completely transformed and we couldn’t be happier with the work. High quality, attention to detail, top notch customer service. Would highly recommend this company to a friend."
Response time2 hrs
Response rate100%
Recommended by100%of homeowners
Avatar for FSA Construction & Home Services
FSA Construction & Home Services
5.0(
11
)

Serving Chelsea, MA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"I hired FSA to do caulking in Kitchen & Bathroom, re-taping one corner and rough & finish carpentry in my Basement. All workmanship was excellent, done quickly & as described- they worked with me & clearly explained everything being done & answered all my questions. I d use them again & would recommend them for house repairs."
3 Story Deck
3 story deck
Outside deck
outside deck
porch

+23

Response time1 day
Response rate85%
Recommended by100%of homeowners
Avatar for C P Construction and Carpentry
C P Construction and Carpentry
4.8(
35
)

Serving Chelsea, MA and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"Very knowledgeable and honest during the entire process. Kept me posted even when there was any issues. Excellent attention to details and listens to you when you have questions or new ideas during the project. Clod is very professional, always available by phone call or text. They did an amazing job remodeling my basement from getting permits to Completing the work with the city signing off on the job. I m very happy with the finished job. The work is excellent and beautiful. I now have a cozy, functional and beautiful finished basement. I trust their work and would gladly recommend them and will personally use them again."
close up view of tile job on shower
remodel a bathroom
remodel a bathroom
remodel a bathroom
bathroom

+20

Response time2 days
4 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Cowboy General Services, Inc.
Cowboy General Services, Inc.
5.0(
9
)

Serving Chelsea, MA and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Bruno and his team did an absolutely fantastic job at my new house. Started off just hiring him to do the interior painting, but ended up having him and his team do some tiling/kitchen backsplash, fireplace remodeling, front door and a laundry renovation. Him and his guys were extremely careful and efficient with their work. Cowboy General Services can truly do it all. I will definitely be hiring Bruno and his team again for my next home project!"
Kitchen original
Half bath
Half Bath
Bid board
Tile floor

+91

Response time4 hrs
7 neighbors recently requested a quote
Recommended by88%of homeowners
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FAQs for basement remodeling projects in Chelsea, MA

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 Chelsea, MA homeowners’ guide to basement remodelings

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