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Find Basement remodelers in Merrimack

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.

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Avatar for Envy Homes, LLC
Envy Homes, LLC
4.8(
2
)

Angi Approved

In business since 2021

Warranties offered

Customers say: Terrific value

"They showed up on time each day, were very knowledgeable of the work they performed. Showed up for the quote when we scheduled the first meeting and we were very impressed with the overall experience. The deck they built was spot on and perfect for our needs. They did make some recommendations as to how it would look and work better for us and we went with their decisions and are so happy and impressed. They were very neat about their work and very easy to talk with. I would never use anyone else, and HIGHLY RECOMMEND them for whatever you need. So great to work with."
Recommended by100%of homeowners
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Avatar for Running Fox Renovations, LLC
Running Fox Renovations, LLC
4.7(
32
)

Angi Approved

In business since 1996

Free estimates

Customers say: True professional

"The job was done right. Every step of the way. Awesome communication and very responsive to our requests. I plan on using them again and again and again!"
23 neighbors recently requested a quote
Recommended by84%of homeowners
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Precision Works Home Remodeling, LLC
4.9(
11
)

Angi Approved

In business since 2003

Free estimates

Customers say: Quality work

"Eli came out and re graded a whole residential yard for me along with taking out and reinstalling a rock bed on the side of my house. He did a great job and I highly recommend Precision Works for anything excavating related! Eli is a super nice guy, very professional, and is very fair with his pricing! He was very honest with the whole job from start to finish!! If you don't hire this company, you will be letting yourself down!"
1 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for HMB Group General Contracting, LLC
HMB Group General Contracting, LLC
5.0(
18
)

Angi Approved

In business since 2004

Free estimates

Warranties offered

"Replaced an existing internal door with a vintage french door I got at an antique shop. Required rebuilding the entire door jam to accommodate the door. Great work it turned out to be exactly what I wanted."
4 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for KATS Construction & Remodel, LLC
KATS Construction & Remodel, LLC
4.9(
25
)

Angi Approved

In business since 2016

Free estimates

Customers say: Quick response

"Tom and his team rebuilt our whole kitchen they were very timely and were very professional did everything I asked for I would recommend them to do any construction job"
46 neighbors recently requested a quote
Recommended by100%of homeowners
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FAQs for basement remodeling projects in Merrimack, NH

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 Merrimack, NH homeowners’ guide to basement remodelings

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

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