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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon56
    Verified basement remodels reviews

Verified Reviews for Basement Remodel pros in Guilford, CT

*The Angi rating for Basement Remodel companies in Guilford, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Remodel needs.

*The HomeAdvisor rating for Basement Remodel companies in Guilford, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Remodel needs.

Last update on February 02, 2026

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

"Great results from waterproofing. Turned my spring flooding anxiety to calm. As humidity rose in summer, I put in a small dehumidifier. Made basement noisy as it struggled to dry and produced a lot of heat. As temperatures rose to about 83 down there and the humidity rose to over 68%, I had same people put in a whole basement commercial-grade dehumidifier. The small unit dropped the humidity to around 50% in less than an hour. Incredible performance and have me peace of mind and peace and quiet downstairs. Temperature dropped gas as well. Weel worth the price to save my most expensive investment."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+12

166 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for Prenga Remodeling, LLC
Prenga Remodeling, LLC
4.7(
49
)
Basement - Remodel

Serving Guilford, CT and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

Family owned business with over 20 years experience - Remodeling Basements- Remodeling General- Remodeling Kitchen & Bathroom-

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+74

Response time1 day
Response rate100%
Recommended by90%of homeowners
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Avatar for Owens Corning Basement Finishing System
Owens Corning Basement Finishing System
4.4(
553
)
Basement - Remodel

Serving Guilford, CT and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"Very satisfied with the basement remodel. Very professional from beginning to end. Its been 2 years and still loving it."
Renovation in Methuen
Renovation in Methuen
Renovation in Methuen
Renovation in Methuen
Renovation in Methuen

+121

Response time1 day
80 neighbors recently requested a quote
Recommended by78%of homeowners
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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

"I liked everything about them. They tell you the cost of everything up front. Their attention to detail is absolutely fabulous. I have another remodeling job coming up, and I am going to use them with no question. Their price is right around the other companies."
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
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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
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Avatar for Pro Services
Pro Services
4.8(
152
)
Basement - Remodel

Serving Guilford, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Emergency services offered

"The technician was very kind and knowledgeable. Great experience I would recommend to anyone looking for a chimney repair."
Chimney Cap Installation
Smoke chamber before
Chimney Sweep Project
Fireplaces Project
Chimney Sweep Project

+36

Response time4 days
Response rate100%
47 neighbors recently requested a quote
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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
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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
Request Quote
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Basement Remodel FAQs, answered by experts

Yes, in most cases, finishing a basement is worth the cost. The project adds valuable, usable square footage to your home and typically provides a return on investment (ROI) of 70% to 75%. For example, an average basement refinishing project costing $32,000 could add between $22,400 and $24,000 to your property's value. The final value added depends on factors like your location, the quality of materials and workmanship, and the features you include, such as a living space, bedroom, or bathroom. To be officially counted in your home's total square footage, the finished space must comply with all local building codes, including requirements for points of egress. However, in areas prone to flooding, a finished basement might be seen as a liability by potential buyers and could potentially decrease your home's value.

Adding a bathroom to your basement can increase your home value since homes with multiple bathrooms sell for more. The return on investment (ROI) for a basement bathroom is 50% to 75%. The actual return varies with your home and location. Adding a half bath to your home increases the value by 2.9% while finishing a basement increases the home value by 6.6%.

It is generally more affordable to finish a basement than an attic, though it ultimately depends on how you plan to use the space. The average cost to finish a basement ranges from $7 to $23 per square foot, while attic renovation costs $30 to $60 per square foot. However, a simple attic conversion to a storage space will cost significantly less.

The time it takes to finish or remodel a basement can vary significantly, ranging from a few weeks to several months or even up to a year. On average, the construction phase can take four to eight weeks, but the total project time can extend to three or four months when including planning and permits. The timeline depends on several factors, including the basement's size, design complexity, the scope of the work, and your contractor's availability. A more detailed breakdown for an average-sized basement might include: framing (3-5 days), electrical and rough-in plumbing (3-5 days), drywall installation (5 days), flooring (2-3 days), and final touches like painting and trim (about a week). If preliminary work like installing a waterproofing system or addressing structural issues is needed, the timeline could extend to six to twelve months. Factors like difficult access, material transport, and ventilation needs can also add to the project's duration.

Some older homes have toilets in the basement to combat sewage backups. This type of toilet, also known as a Pittsburgh potty, acted as a safety valve over the incoming sewer line. If a line backed up, it would back up into the toilet because it was the lowest fixture in the home, keeping it out of sight and away from the finished areas of the house.

Basement toilets were also used by workers with messy jobs, like those who worked in coal mines or steel mills. This way, they could clean up and avoid tracking dirt through their home.

The Guilford, CT homeowners’ guide to basement remodels

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

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