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Find Basement remodelers in Tewksbury

McCarthy Construction
5.0(
31
)

Angi Approved

In business since 2011

Free estimates

Customers say: Quality work

"Itâ s hard to find a GC who is highly skilled, fair and reasonable. With Cal, you have this plus someone who is honest and takes a great deal of pride in his work. And itâ s not just Cal and his crew, itâ s also his sub-contractors doing painting, flooring, etcâ ¦ We had a phenomenal experience with him and without hesitation recommend McCarthy Construction for anyone looking to do remodeling work in their home in the metro-west area. Thanks for making our dreams a reality!"
Recommended by100%of homeowners
Avatar for Total Basement Finishing, a Blackdog Affiliate
Total Basement Finishing, a Blackdog Affiliate
5.0(
1
)

Angi Approved

In business since 1989

Free estimates

Warranties offered

Total Basement Finishing, A Blackdog Affiliate serves the Greater Lowell area of Massachusetts and New Hampshire with basement finishing and basement remodeling. Finishing your previously unused basement gives you additional space in your home and so much more. It offers you a rare opportunity to exploit your creative side through the design process. And ultimately, you will transform a dark, uninviting space into a room that adds value and comfort to your home, making it an integral part of your family’s daily life.

Avatar for M Builders, LLC
M Builders, LLC
New to Angi

Angi Approved

In business since 2021

Free estimates

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 Men Construction
Men Construction
4.8(
23
)

Angi Approved

In business since 2016

Free estimates

Customers say: True professional

"I had a great experience with Men Construction works my on my property. Communication was excellent from start to finish, clear, responsive, and honest throughout the entire process. Pricing was fair and transparent, the crew was respectful of my property, and the job was completed right on schedule. It’s refreshing to work with a company that does what they say they’re going to do and does it well. I would absolutely recommend them and wouldn’t hesitate to use them again"
Recommended by60%of homeowners
Avatar for Owens Corning Basement Finishing System
Owens Corning Basement Finishing System
4.8(
342
)

Angi Approved

Super Service Award Winner

In business since 1990

Free estimates

Customers say: True professional

"Very good experience, they handled all permits and kept me updated every step of the way. Always arrived on time, very professional, amazing craftsmanship and when they were done they left a perfectly clean area. Would definitely recommend"
131 neighbors recently requested a quote
Recommended by78%of homeowners
B LAGRASSA CONSTRUCTION LLC
4.3(
14
)

Angi Approved

In business since 2021

Free estimates

Customers say: Quick response

"We hired Brennan and his company when he first started his company, years ago. We had to structurally change the living room and dining room prior to renovating the kitchen. By the end of the project we had an entire open concept first floor, and brand new kitchen. Between the workmanship, communication, dedication to show up on time, when they said they would, I would highly reccomend B LaGrassa Construction. "
Recommended by64%of homeowners
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FAQs for basement remodeling projects in Tewksbury, 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 Tewksbury, MA homeowners’ guide to basement remodelings

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