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Find Basement remodelers in Chelmsford

Avatar for Owens Corning Basement Finishing System
Owens Corning Basement Finishing System
4.8(
352
)

Serving Chelmsford, MA and surrounding areas

Approved

Super Service Award Winner

In business since 1990

Free estimates

Warranties offered

"We had an outstanding experience with Owens Corning Basement Remodeling from start to finish. The entire team was phenomenal—professional, communicative, and truly dedicated to delivering high-quality work. One thing that really stood out was how quickly they got started. There was no unnecessary waiting, and they stayed on schedule the entire time, which made the whole process smooth and stress-free. A special shoutout to Carlos and Luis, who worked tirelessly on our basement. Their craftsmanship, attention to detail, and strong work ethic were obvious every single day. They took great pride in their work, and it absolutely shows in the finished result. We couldn’t be happier with how everything turned out. If you’re considering a basement remodel, I highly recommend Owens Corning—they exceeded our expectations in every way!"
Media Room Before
Media Room After
Games Room Before
Games Room After
Living Room Before

+128

Response time11 hrs
150 neighbors recently requested a quote
Recommended by75%of homeowners
Chakar Construction
5.0(
33
)

Serving Chelmsford, MA and surrounding areas

Approved

In business since 1995

Free estimates

Offers commercial services

"Amazing! Ramy and his team did an amazing job and really take a lot of pride in their work! He removed the old door, fixed the rotted parts of the floor, and installed a new slider. My wife and I can’t believe how good it looks and the improvement it made. We will hire Ramy and Chakur Construction for our new hardwood floor install shortly. Look no further when you need any remodeling in your home. I research everything before I make a decision and am so happy I chose Chakur!"
Painting
Painting
Painting
Painting
Painting

+37

5 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for KATS Construction & Remodel, LLC
KATS Construction & Remodel, LLC
4.9(
25
)

Serving Chelmsford, MA and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"Kats Construction & Remodel enlarged and remodeled our bathroom. We are very pleased with the quality of their work. They are cooperative to work with and go out of their way to please. The job was completed ahead of schedule. We would recommend them to anyone. C and E of Nashua NH"
Finished Kitchen Remodel
Nashua Kitchen Remodel
Bathroom
Kitchen Remodel
ATTIC BEFOR & AFTER

+64

Response time2 days
50 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Extreme Makeover Custom Home Repair Handyman, LLC
Extreme Makeover Custom Home Repair Handyman, LLC
4.9(
140
)

Serving Chelmsford, MA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"I was so happy with my previous bathroom remodel from Extreme Makeover I hired John again to do another Project on the upstairs bath. Again, the results were better than I anticipated. John Leahy, owner and his associate John produced a beautiful and updated look. The craftsmanship was impeccable and they were always on time and finished the project earlier than promised. John is very courteous and approachable and is easy to relate to. I know you will be very pleased with Extreme Makeover for your next home project."
Additional Photos
Sun room
decking and siding
library
Response time1 day
2 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for MMP Construction Inc
MMP Construction Inc
4.7(
191
)

Serving Chelmsford, 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
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+154

1 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Discovery Home Improvement
Discovery Home Improvement
4.8(
103
)

Serving Chelmsford, MA and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

Josemar Oliveira has been serving the local communities residential Home Improvements needs since 1998. We pride ourselves on our quality materials and craftsmanship. Please allow our experience and attention to detail to serve you and your families residential needs.

Cambridge designer colors
Cambridge designer colors
Cambridge designer colors
Cambridge designer colors
Cambridge designer colors

+44

Response time2 hrs
Recommended by66%of homeowners
Avatar for Acton Home Repair
Acton Home Repair
5.0(
10
)

Serving Chelmsford, MA and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"John was great to work with during the process, helped us design and did an excellent job executing on the vision. Always on time, reliable to his delivery schedule, and overall pleasure to work with. Would definitely recommend anyone looking for remodeling work."
Additional Photos
Additional Photos
Response time2 days
Response rate96%
Recommended by100%of homeowners
Avatar for HomePro Services Inc
HomePro Services Inc
5.0(
63
)

Serving Chelmsford, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Customers say: True professional

"We had a fantastic experience with this company. Joe (the owner) was responsive, constructive, easy to work with, and reliable, and he did very high quality work. We had a quite extensive basement finishing project (finishing about 50% of a previously unfinished basement) that involved planning the use of the space, adjusting the plumbing organization to accommodate the bathroom we wanted to put in, installing electrical circuitry, installing the bathroom, rebuilding the stairs, installing a substantial network of soffits to enclose ducts and plumbing, and of course installing all the drywall, flooring, finishing etc needed to complete the space. Throughout the project Joe stayed in touch with us about plans and choices, and was flexible about accommodating our preferences while also giving us sage advice based on his (extensive) experience. He started on time and completed the work in line with the expected schedule. Joe did much of the work himself but he also brought in other specialists as needed, on schedule and with minimum fuss (plumber, electrical, etc), and he handled interactions with the town inspectors effectively too. He even helped us with some issues elsewhere in the house that came up while he was working on the basement, and came back to help us install some decorative items that we ordered but did not arrive before he officially finished. We are extremely happy with the end result and use the space almost every day. Anyone who sees the space is also very impressed. It's a wonderful addition to our home and exactly what we hoped for."
Additional Photos
Additional Photos
Additional Photos
Recommended by100%of homeowners
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FAQs for basement remodeling projects in Chelmsford, 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 Chelmsford, MA homeowners’ guide to basement remodelings

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