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  • Average homeowner rating star icon3.7
    Average homeowner rating
  • Verified reviews icon10
    Verified basement remodels reviews

Top-Rated Basement remodelers in Knowlton - Updated Nov 2026

Avatar for Basic Basement Co
Basic Basement Co
4.8(
343
)
Basement - Remodel

Serving Knowlton, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Warranties offered

"We used Basic Basement Company to finish half of our basement. We were very impressed with the communication they had with us every step of the way! Project went very smoothly! We are very happy with our basement remodel and would highly recommend Basic Basement Company!!!"
Basic 1
Basic 2
Basic 3
Additional Photos
Additional Photos

+2

Response time2 days
7 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for BAS Construction
BAS Construction
5.0(
42
)
Basement - Remodel

Serving Knowlton, NJ and surrounding areas

Approved

In business since 1982

Free estimates

Credit card accepted

"We needed the playroom in the basement to be refreshed: new floor, windows and paint. We also added a custom closet and had the central AC ducts encased. We had already hired BAS Construction a few years ago to finish part of the basement, and wanted the playroom to match. We were again very pleased with the results. The various crews showed up on time and the work site was kept clean. The work was completed within the promised time frame. Ali and Sina were easy to work with and very professional, from planning the project to completion. They came up with great suggestions. We would highly recommend hiring them."
Remodeling - Kitchen & Bathroom Project
Remodeling - General Project
Remodeling - Basements Project
Remodeling - Kitchen & Bathroom Project
Remodeling - General Project

+22

6 neighbors recently requested a quote
Recommended by100%of homeowners
All-Star Contractors of Hunterdon County, LLC
4.7(
37
)
Basement - Remodel

Serving Knowlton, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1970

Free estimates

Emergency services offered

"We finally went forward with the bathroom remodel we'd wanted for over a decade, and Bill from All-Star was so helpful throughout the process. I had a particular vision, and he left shopping to us while giving the benefit of his experience as guidance. The two-man onsite crew who did the day-to-day work were also professional and courteous, and they asked questions as we went along to make sure things were to our liking, and to overcome any unforeseen challenges in ways that suited us. I was very pleased with how they worked carefully in our small home. I also appreciated their minimizing "toilet downtime" during the process, as we only have the one bathroom! It was tricky, but they got the job done. The space was ultimately expanded and transformed to the beautiful end result I imagined. I would absolutely hire All-Star again for another project like this!"
Response time3 days
Response rate100%
2 neighbors recently requested a quote
Avatar for Built To Last Home Improvements, LLC
Built To Last Home Improvements, LLC
4.8(
25
)
Basement - Remodel

Serving Knowlton, NJ and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

Outdoor Shower Right Angle
Outdoor Shower Left
Design  Render
Outdoor Shower
Cabin Flooring

+4

Response time10 hrs
Response rate89%
1 neighbors recently requested a quote
Avatar for Inson Dubois Wood LLC
Inson Dubois Wood LLC
5.0(
17
)
Basement - Remodel

Serving Knowlton, NJ and surrounding areas

Approved

In business since 2005

Customers say: True professional

Full Service Residential Design Firm that focuses on full transparency and meeting our clients budget and timeline. Impeccable attention to detail and cost analysis are our strong point. A full design team takes your project from inception to completion in record time.

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Additional Photos

+11

Recommended by100%of homeowners
Avatar for Chifla R Painting and Home Improvments
Chifla R Painting and Home Improvments
5.0(
8
)
Basement - Remodel

Serving Knowlton, NJ and surrounding areas

Approved

In business since 1995

Credit card accepted

Customers say: True professional

Welcome to Chifla R Painting and Construction, LLC! We specialize in remodels, painting, drywall and whatever construction and handyman services fall in between. We are well versed in most aspects of home improvement, so feel free to ask us about your project in mind. We offer both residential and commercial services. Call today, for your free estimate or with questions. Thank you for letting us introduce ourselves and have a great day!

Additional Photos
Additional Photos
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Additional Photos

+35

Response time1 day
Response rate100%
Recommended by100%of homeowners
Avatar for Restored NJ
Restored NJ
4.8(
19
)
Basement - Remodel

Serving Knowlton, NJ and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

Restored NJ is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

Response time3 hrs
Response rate93%
Recommended by89%of homeowners
Avatar for M'C Construction & Remodeling, LLC
M'C Construction & Remodeling, LLC
3.9(
4
)
Basement - Remodel

Serving Knowlton, NJ and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

Glass shower
Ceramic remodel
Exagon tiles
Bathroom and sink
Small toilet

+7

Response time1 day
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Richard Painting & Home Improvement Limited Liability Company
Richard Painting & Home Improvement Limited Liability Company
4.0(
8
)
Basement - Remodel

Serving Knowlton, NJ and surrounding areas

Approved

In business since 1998

Free estimates

Small jobs welcome

"Choosing Richard Painting & Home Improvements for our basement remodeling was a positive experience overall. The estimate was fair and competitive, the team made us feel safe and comfortable throughout the project, and they maintained a clean and organized workspace. The quality of their workmanship was exceptional, delivering a beautifully finished basement that exceeded our expectations. One area they could improve upon is communication regarding their work schedule. There were times when we were unsure which days they would be on-site, which caused some minor inconveniences. Despite this, we are very satisfied with their work and would recommend them for anyone looking for reliable and high-quality home renovations. We would use them again for future projects."
Painting - Interior Project
Painting - Interior Project
Plumbing Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project

+34

Response time1 day
Response rate100%
2 neighbors recently requested a quote
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Basement Remodel FAQs, answered by experts

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.

Building up by adding square footage to the top of your home is often less expensive than adding a basement, but it depends on the specifics of your house, your property, and supply costs. Because building a basement requires excavation, it can be a more expensive option than building up.

Renovation enhances functionality, increases home value, and can add new space for personal or family needs. It typically modernizes older unfinished basements for new uses.

A finished basement must have a heat and electrical supply with an entrance that meets building code requirements, such as a stairwell to the home's main living space. It often must include finished walls, ceilings, and floors. If the finished basement includes a bedroom, it should have a heat source, an egress window, and a closet.

Remodeling, as opposed to finishing, means altering an already finished basement by adding a bathroom, bedroom, or living area.

Create a checklist, reimagine the space use, set a realistic budget, choose materials and aesthetic details, and get professional support for guidelines and troubleshooting.

The Knowlton, NJ homeowners’ guide to basement remodels

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