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Find Basement remodelers in London

Avatar for David Richards Home Improvement
David Richards Home Improvement
5.0(
132
)

Serving London, OH and surrounding areas

Angi Approved

Super Service Award Winner

In business since 1989

Free estimates

Emergency services offered

"We had David Richards Home Improvement build us a basement bathroom from the the ground up. This included breaking up concrete and installing a drainage system for a toilet and shower. David and Ashley and the entire crew were great to work with. The bathroom looks great and is a fantastic addition to our home ! Gus and Jan"
CEILING TEXTURE
BATHROOM
SHOWER
KITCHEN
KITCHEN

+49

Response time4 days
4 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for H & B Construction Services
H & B Construction Services
5.0(
33
)

Serving London, OH and surrounding areas

Angi Approved

Super Service Award Winner

In business since 1990

Free estimates

Warranties offered

"Basement Finishing complete!! I know finding someone can be stressful so I wanted to give a shout out to Greg Henslee. His price was fair, communication was great and he finished on time (2 months). He was here every day minus weekends and an occasional day here and there. We even went on vacation, he still came everyday with no issues. I know Greg is booked probably through Spring 2026 but if you are looking for recommendations and not in a rush he is definitely worth contacting for a quote."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Recommended by100%of homeowners
Avatar for Mid-State Basement Systems
Mid-State Basement Systems
5.0(
12
)

Serving London, OH and surrounding areas

Angi Approved

In business since 1986

Free estimates

Emergency services offered

"Mid-State Basement Systems came highly recommended by a good friend from Buffalo, NY and they did not disappoint. From start to finish they were very professional yet personable. Larry & Phil in the initial stages of the basement inspection and a reasonable quote. Silvino and his team who done the actual work was incredible, done with absolute excellence. They were here when they said they would be and finished the job a day ahead of schedule. I am thoroughly pleased with this company, first class. I highly recommend them if you need work done on your basement.******"
Before
After
Clean Space After
Crawl Space Before
Foundation Before

+2

Response time2 hrs
Response rate100%
54 neighbors recently requested a quote
Avatar for Holy Roller Painting
Holy Roller Painting
4.4(
7
)

Serving London, OH and surrounding areas

Angi Approved

In business since 2000

Free estimates

Customers say: Quality work

"The profile for Holy Roller is lengthy and is misleading. As a consumer, you would want to trust that what is listed on the company's profile is work that can be accomplished in a satisfactory manner for all parties. I hired Holy Roller to paint a pergola and refurbish an existing patio. Holy Roller spent months on my project, leaving me without the use of my patio. I fully paid Holy Roller, but the project was never completed. Appointments were cancelled, incorrect paint was used, the company couldn't strip the paint they applied that had chipped and peeled. Construction debris was left on my property. I enlisted the Better Business Bureau's help and took Holy Roller to Arbitration. An Arbitration hearing was conducted at the office of the BBB and I received an Arbitration Award against Jim C./Holy Roller. The money was to be paid by November 1, 2018. Jim Cole has not abided by the Arbitrator's Ruling. I spent thousands of dollars with a reputable company to fix the workmanship of Holy Roller Painting. The new company removed all work done by Holy Roller and gave me a new patio within 36 hours. Please do your research before hiring this company."
Recommended by85%of homeowners
Avatar for KDK Construction
KDK Construction
4.7(
3
)

Serving London, OH and surrounding areas

Angi Approved

In business since 2011

Free estimates

Emergency services offered

"KDK Construction is amazing! They work very hard and completely their work in a timely manner. In a time where it's hard to get construction work done on time these guys do it right!"
Response time2 days
21 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Red Lily Renovations
Red Lily Renovations
New to Angi

Serving London, OH and surrounding areas

Angi Approved

In business since 2023

Free estimates

Red Lily Renovations offers quality services to clients at reasonable prices. Our courteous staff has the professional tools and experience necessary to help with your home projects. We specialize in kitchen, bath and basement renovations, interior and exterior painting, tile, luxury vinyl flooring, interior trim and decorative moldings and more! Call today to get in touch with our staff, and to learn more about what we have to offer!

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FAQs for basement remodeling projects in London, OH

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 London, OH homeowners’ guide to basement remodelings

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