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Find Basement remodelers in Chelsea

Avatar for SILMAC Construction Inc.
SILMAC Construction Inc.
4.8(
219
)
Basement - Remodel

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
Additional Photos
Additional Photos

+11

Response time6 hrs
1 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Crystal Renovations LLC
Crystal Renovations LLC
4.9(
64
)
Basement - Remodel

Serving Chelsea, MA and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"We hired Pedro and his crew to renovate our basement and to say we are thrilled would be an understatement. Pedro and his crew were very professional throughout the whole project, went above and beyond and exceeded are expectations. We now have a basement that we love and the whole family enjoys!"
Remodeling - General Project
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+10

Response time3 days
3 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Remodel or Renew Home Improvement
Remodel or Renew Home Improvement
4.6(
296
)
Basement - Remodel

Serving Chelsea, MA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"I had a needy list of musts to accommodate a handicapped family member and the Remodel team was more than ready for the challenge! I’m already in line for a spring project with them!"
Decks
Farmers Porch
Deck
Decks
Screened oom

+7

Response time12 hrs
Response rate95%
970 neighbors recently requested a quote
Avatar for A-Z Finish Carpentry, LLC
A-Z Finish Carpentry, LLC
5.0(
12
)
Basement - Remodel

Serving Chelsea, MA and surrounding areas

Approved

In business since 2020

Free estimates

Small jobs welcome

"We hired Charles Draleau of A-Z Finish Carpentry as the contractor for a complete walkout basement renovation, including the family room, laundry room and unfinished basement areas. The renovation followed remediation for mold and asbestos. We definitely hired the right person, and could not be more pleased with the entire experience and end results! Charles was great at keeping me informed via text, so we always knew what was happening next. He did a great job coordinating all the work, from demolition, framing, insulating, plastering, plumbing, to installation of electrical wiring, windows, flooring, stairs, shelving and painting. This total basement transformation went along so smoothly, and weâ re so happy with the outcome. Charles is a perfectionist and hires workers, including plasterers, electricians, plumbers, and finish carpenters who also take great pride in their work. I highly recommend A-Z Finish Carpentry."
Our work
Our work
Our work
Our work
Our work

+41

Response time1 day
Response rate93%
7 neighbors recently requested a quote
Avatar for C P Construction and Carpentry
C P Construction and Carpentry
4.1(
47
)
Basement - Remodel

Serving Chelsea, MA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services 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
2 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for RC Works
RC Works
5.0(
23
)
Basement - Remodel

Serving Chelsea, MA and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"I’ve done two major renovations with Andrey and his team. I couldn’t be happier with the results. They are responsive, patient, flexible and work in a timely manner. I have recommended this company to friends and family and would definitely use them again for future projects."
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

+297

1 neighbors recently requested a quote
Recommended by72%of homeowners
Avatar for A&C Painting & Construction, Inc.
A&C Painting & Construction, Inc.
5.0(
4
)
Basement - Remodel

Serving Chelsea, MA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Claudiney and his team handled multiple aspects of our home remodel after we purchased it. They were responsible for all the interior and exterior painting, re-paneling, bathroom renovations, and plumbing work. Their performance was outstanding, and I continue to rely on them for ongoing projects. occasional projects that crops up. I can highly recommend Claudiney and his team."
Response time11 hrs
Response rate100%
2 neighbors recently requested a quote
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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.