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Find Basement remodelers in Keene

Avatar for Owens Corning Basement Finishing System
Owens Corning Basement Finishing System
4.8(
343
)

Serving Keene, NH and surrounding areas

Angi Approved

Super Service Award Winner

In business since 1990

Free estimates

Credit card accepted

"I recently completed an approximately 800 sq. ft. basement renovation with Owens Corning/Lux Renovations, including a full bath and wet bar, and the experience was excellent from start to finish. The project began earlier than expected, stayed on schedule, and was completed beautifully in five uninterrupted weeks. Our project manager, David Guimaraes, was professional and always accessible by phone or text, and onsite weekly, while onsite supervisor Alvaro was present daily and consistently went above and beyond to ensure our satisfaction—including adjusting a wall so a large piece of furniture would fit perfectly. The materials were high quality, and I appreciated the flexibility to substitute my own fixtures, with changes made seamlessly and without issue. I love my basement!!! If you are interested in doing a basement renovation, I would highly recommend this company. Basement renovations are their business and they are great at it. "
Media Room Before
Media Room After
Games Room Before
Games Room After
Living Room Before

+81

Response time11 hrs
270 neighbors recently requested a quote
Recommended by77%of homeowners
Avatar for IDEAL SOLUTIONS LLC
IDEAL SOLUTIONS LLC
4.8(
12
)

Serving Keene, NH and surrounding areas

Angi Approved

In business since 2020

Free estimates

Credit card accepted

"They are very good at what they do. We re-hired them after they did a job for us over last summer. There were differences on a this second job. If you use this company, I recommend: 1. Insist on a thorough, detailed contract that specifies ALL the details. Several things were forgotten, and later treated as ;added and as scope change. Could have been avoided with cleaner communication. 2. Specify in writing whether or not sub-contractors will be used for the job. During this second job, we had a couple of sub-contractors that were really, really bad. a. If sub-contractors are used, recommend specifying that a crew chief from Ideal be on site at ALL times. If needed, they should provide translation services. Our place was trashed when they left the site; sheet rock dust everywhere, floors to scrape, a hole in the wall to fix, lots of hard work ahead. They knocked off $2K. I would not do this amount for $2K. Bottom line, do not feel it was an fair solution. Learned a lesson."
Recommended by66%of homeowners
Avatar for The Handyman Company
The Handyman Company
4.9(
11
)

Serving Keene, NH and surrounding areas

Angi Approved

In business since 1999

Free estimates

Credit card accepted

"This company is fantastic. They went above and beyond what was required for a small project that I didn't have the time to do myself. It's so difficult to find good people to do these jobs, so I was really grateful for the fast, reliable, and high quality service. I would hire them again in a heart beat. They got right back to me when I initially made the request for service, and even though they said they were busy, they went out of their way to accommodate my request in a short span of time. They also communicated consistently and reliably when I messaged them about the project. This company gets my highest endorsement."
Tear out and clean up debris
Taking out old cabinets
Tile installation
sheetrock/tile
Custom Cabinets

+68

Response time1 day
Recommended by100%of homeowners
Avatar for DCL Construction
DCL Construction
5.0(
5
)

Serving Keene, NH and surrounding areas

Angi Approved

In business since 1999

Free estimates

Emergency services offered

"Bob was amazing throughout the entire project. Was very knowledgeable about everything we requested and helped with the planning process from beginning to end. Gave extremely realistic cost and timeframe. Was extremely professional the entire time and always made sure to clean up and it never felt like we were in the middle of a “construction sight”! We were so happy with his work that we are planning more projects. I would not have any hesitation in recommending Bob for a project. You won’t regret it!!! "
After
After
After
After
Before

+38

Response time10 hrs
1 neighbors recently requested a quote
Recommended by80%of homeowners
Straight Line Construction LLC
5.0(
4
)

Serving Keene, NH and surrounding areas

Angi Approved

In business since 2014

Offers commercial services

"My project was small compared to many other projects out there. And yet Josh and Straight Line Constitution were happy to take my business and made it a priority. There was some urgency to getting it done and they sent the right number of people to meet the deadline. And when unforeseeable complications arose they worked with me in order to find a solution that would achieve the goal of the project without extreme cost overrun. There are many contractors out there who will give you a wide range of quotes. If you want to go cheap then find someone who will do a half ass job for little money. But if you want it done right and you want it to last call Straight Line Constitution. The rates are reasonable the quality is top-notch and they're very friendly people to work with."
1 neighbors recently requested a quote
Sonart Construction Corp.
1.5(
2
)

Serving Keene, NH and surrounding areas

Angi Approved

In business since 2013

Free estimates

Credit card accepted

"????? If I could give zero stars, I would Hiring this contractor was a nightmare from start to finish. The bathroom they delivered is so poorly done that I feel like I need to redo it entirely. They rely on subpar subcontractors with no professionalism or craftsmanship. ? Overpromise and underdeliver: I had to stay on top of every detail myself, doing the job the contractor was hired to manage. ? Unreliable: Never kept appointments or confirmed schedules. The only time they showed up on time was to collect payment. ? Unsafe practices: At one point, a subcontractor was cutting concrete inside the bathroom with a gas?powered tool, filling my entire home with smoke. I had to intervene to stop it and argue just to get basic protections like tarps in place. ? Poor management: Subcontractors openly complained about not being paid, and I even had to send one home myself because of unacceptable behavior. ? End result: Substandard work that does not reflect the money spent. Save yourself "
Avatar for Phil's Remodeling
Phil's Remodeling
New to Angi

Serving Keene, NH and surrounding areas

Angi Approved

In business since 2025

Free estimates

Credit card accepted

We have the experience and we are committed to providing quality workmanship and superior customer service on all our applications. Phil's Remodeling strives to maintain our reputation as a high quality, very service oriented company with our main focus being on customer satisfaction.

Enclosed garage
1 neighbors recently requested a quote
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FAQs for basement remodeling projects in Keene, 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 Keene, NH homeowners’ guide to basement remodelings

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