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Top-Rated Basement remodelers in Guilford - Updated Nov 2026

Avatar for Connecticut Basement Systems, Inc.
Connecticut Basement Systems, Inc.
4.3(
589
)
Basement - Remodel

Serving Guilford, CT and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"Very well done job! Service technicians were knowledgeable and professional, thorough and efficient, kind and polite. I highly recommend the company for basement service."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+12

176 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Everything Under The Roof LLC
Everything Under The Roof LLC
4.8(
43
)
Basement - Remodel

Serving Guilford, CT and surrounding areas

Approved

In business since 2006

Free estimates

Customers say: True professional

"Our small master bathroom was renovated by EUTR a few months ago. The planning and work went smoothly and the job was completed on time. The work area was kept clean at the end of each day. We saved a bit of money due to their ability to obtain comparable materials at a lower cost. We are very happy with the work done. Jay and Kim were great to work with. We would certainly consider hiring EUTR again for another home project."
hickory kitchen
master bath
Maple kitchen
double vanity
walk-in shower with bench

+4

Response time2 days
Response rate100%
4 neighbors recently requested a quote
Avatar for SRC Partners
SRC Partners
5.0(
6
)
Basement - Remodel

Serving Guilford, CT and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

New Home & Remodeling Contractor with the staff and Knowledge to customize your home on time and on budget. Licensed and Insured since 2015 with over 25 years experience in the new construction business. Let our on staff design team build or remodel the home of your dreams!!

North Haven Addition
Before Picture
North Haven Addition
Pantry area complete
Before Picture

+3

Response time1 day
Recommended by100%of homeowners
Avatar for TimberWolf Contracting LLC.
TimberWolf Contracting LLC.
4.2(
55
)
Basement - Remodel

Serving Guilford, CT and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"I’m very pleased with the service and work I received from Timber Wolf contractors and his crew. He contacted me and arranged a time to look at the work I needed done. He promptly sent me a quote. He set up a time between our schedules to build my spiral staircase and replace a window with a vent. He arrived on time and completed the job beyond my satisfacon. I was so pleased with the results and communication I received, that I hired them to come to my other home to install "Flooring for my sunroom, pantry and hallway. They also painted trim and upgraded my hardware on my kitchen cabinets. I felt very comfortable with Timber and left him a key so I could go to work. I highly recommend Timber Wolf contractors for your home projects, they are professional, polite and hardworking. Respectfully, A. Saint"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+16

Response rate100%
1 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for JFJ Construction
JFJ Construction
4.6(
71
)
Basement - Remodel

Serving Guilford, CT and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"I hired JFJ for a kitchen remodel. I m very very happy with how it turned out. They were clean, professional and overall great! Will hire them again for upcoming projects and I will also recommend to friends and family."
Bathroom tile
Bathroom Tile
Bathroom Tile
Bathroom Tile
Bathroom Tile

+226

Response time2 days
Recommended by96%of homeowners
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FAQs for basement remodeling projects in Guilford, CT

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 Guilford, CT homeowners’ guide to basement remodelings

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