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Find Basement remodelers in Concord

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
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
Darren LaValley Carpentry
New to Angi

Angi Approved

In business since 1985

Free estimates

At Darren LaValley Carpentry, we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job. We specialize in custom woodwork projects, finish carpentry, built ins and stairs. We are not licensed for electric or plumbing, so we do not offer those services. \n

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"
132 neighbors recently requested a quote
Recommended by78%of homeowners
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
Avatar for Granite State Renovators, LLC
Granite State Renovators, LLC
4.8(
14
)

Angi Approved

In business since 2012

Free estimates

Customers say: Quality work

"We recently hired Granite State Renovators for a complete kitchen remodel, and we couldn?t be happier with the outcome. From the very beginning, the team was easy to work with?super responsive, organized, and genuinely invested in making sure we got exactly what we wanted. The quality of the work is top-notch, and every detail was done with care. Our new kitchen is absolutely beautiful and feels like it should be in a magazine. It?s not just a kitchen anymore?it?s the heart of our home. They finished on time, stuck to the budget, and made the whole process way less stressful than we expected. Highly recommend them to anyone looking to do a major renovation."
4 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Coen Construction
Coen Construction
4.5(
11
)

Angi Approved

In business since 2011

Free estimates

Warranties offered

"I recently hired Coen Brothers Construction on a thorough bathroom renovation, and the outcome was outstanding. Their quality was excellent, and I am delighted with the final result. Their sub-contractors were also great and worked at the same high standards as the Coen Brothers. Although we faced some communication issues at the outset, we eventually worked through them, and it significantly improved throughout the project. They paid attention to detail; when my project manager saw me stripping the trim for reuse, they recommended buying new trim and a lumber yard to get it. And it makes a big difference having new trim with clean, sharp lines. Their tile work took longer than expected, but the miter cuts the trim cuts, and the finish is excellent. They were consistently punctual, respectful of my home, and very tidy - tidying up at the end of each day. While the project took longer than anticipated, the reasonable cost and the team's meticulous attention to detail compensated for it. Coen Brothers Construction also expertly handled all necessary permits and inspections, keeping me informed every step of the way. Overall, I am satisfied with their work and would hire them again for my next project."
4 neighbors recently requested a quote
Recommended by72%of homeowners
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FAQs for basement remodeling projects in Concord, 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 Concord, NH homeowners’ guide to basement remodelings

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