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  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon50
    Verified basement remodels reviews

Top-Rated Basement remodelers in Williamstown - Updated Nov 2026

Avatar for Bowen Contracting Inc
Bowen Contracting Inc
4.9(
135
)
Basement - Remodel

Serving Williamstown, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1991

Free estimates

Credit card accepted

"We are returning customers of Bowen Contracting after they dis a great job with our patio and enclosure. This time it was a basement remodeling project. Jeff and his crew did a great job, using high quality materials and high quality workmanship. They were flexible with regards to us modifying existing plans as the project progressed. We recommend Bowen Contracting to anyone who might want any home improvement work accomplished."
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Azek deck with vinyl rail
Additional Photos

+65

Response time1 day
1 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Owens Corning Basement Finishing System
Owens Corning Basement Finishing System
4.5(
746
)
Basement - Remodel

Serving Williamstown, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1990

Free estimates

Warranties offered

"We had a great experience with the Lux Renovations and Owens Corning team. The whole process was very easy from designing the space, selecting colors, and having a contract manager who organized the entire basement remodel including all the trades and inspections. We were sold on the Owens Corning materials for the basement and that they were engineered specifically for a basement space. Would highly recommend this team for your basement remodel needs."
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Additional Photos

+40

Response time1 day
Response rate100%
220 neighbors recently requested a quote
Avatar for ZZeo's Home Renovations
ZZeo's Home Renovations
4.9(
122
)
Basement - Remodel

Serving Williamstown, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Small jobs welcome

"Angel from ZZeos did a FANTASTIC job with my bathroom remodel. My bathroom is beautiful!!!!! Angel and his crew were very professional, attentive and courteous. He kept me in the loop every step of the way. He is extremely knowledgeable and very skilled. I would definitely use ZZeos Home Renovations again and would highly recommend hiring him to anyone looking to have renovations done."
Response time5 hrs
4 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Superior Construction Solutions, LLC
Superior Construction Solutions, LLC
4.9(
19
)
Basement - Remodel

Serving Williamstown, NJ and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"Sean and his crew provided exceptional work. The company is professional and offers fair pricing. They remodeled my mother's bathroom, taking it from the 1970s to a sleek modern bathroom. Sean is meticulous and went over and above to make sure the job was just what my mother wanted. I would highly recommend this company."
mt ephraim
mt ephraim
mt ephraim
burlington
burlington

+27

Response time10 hrs
Recommended by100%of homeowners
Avatar for JWL Construction
JWL Construction
5.0(
4
)
Basement - Remodel

Serving Williamstown, NJ and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"The professionalism and quality was superb. From the very first consult to the last day the owners were available to answer any questions. They walked thru the process from step one. Wendy even assisted with design. Staff always cleaned up everyday and they even became friends with my two dogs. You hear about nightmare remodels but mine was wonderful and it was a large job. Can’t wait for them to do my next project."
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for LMA Designs and Fabrications LLC
LMA Designs and Fabrications LLC
5.0(
7
)
Basement - Remodel

Serving Williamstown, NJ and surrounding areas

Approved

In business since 1999

Free estimates

Customers say: True professional

"Full bathroom remodel. Lou from LMA Design was great to work with. I appreciated that he always wanted things done the right way. The work was finished on schedule and on budget and I was kept aware of the jobs progression throughout. Once completed, all debris was removed and the entire bathroom was cleaned. I would definitely recommend."
Kitchens
Kitchens
Kitchens
Kitchens
Kitchens

+32

Response time5 hrs
Response rate92%
Recommended by100%of homeowners
Avatar for JMD Builders LLC.
JMD Builders LLC.
4.0(
5
)
Basement - Remodel

Serving Williamstown, NJ and surrounding areas

Approved

Super Service Award Winner

Free estimates

Warranties offered

Customers say: True professional

General Remodeling business locally owned and operated we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project
Additional Photos
Additional Photos

+20

Response time3 days
Response rate93%
4 neighbors recently requested a quote
Avatar for Nany Construction LLC.
Nany Construction LLC.
5.0(
2
)
Basement - Remodel

Serving Williamstown, NJ and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Yes, the job was done beautiful. He was very professional and definitely has the skills and knowledge as a general contractor. He kept me informed and contacted immediately if there were any issues. I highly recommend this company for any home improvement projects."
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+34

4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Home Plus Services
Home Plus Services
5.0(
3
)
Basement - Remodel

Serving Williamstown, NJ and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

• Licensed • Skilled • Reliable • \n\nWE OFFER: \nInterior & Exterior Home Improvements\nProject Management\nGeneral Construction & Repairs\nArchitectural Design & Drafting\nCustom Projects\nTransitioning / Relocation\n Restoration / Remodeling\nServices Offered:\n\n\nHome Plus Services is the leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!\n

167 Jones Kane
167 Jones Kane
167 Jones Kane
301 Arizona
301 Arizona

+2

2 neighbors recently requested a quote
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Showing 1-10 of 263
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.

Yes, you can add a kitchenette to a basement. However, you’ll have to consider the costs associated with basement kitchenettes. If you’re starting from scratch in an unfinished basement, you’ll need to account for brand-new plumbing, electrical, flooring, and more in addition to the cost of the kitchenette. If you’re putting a kitchenette in an already finished basement equipped with plumbing and electrical, you’ll save considerable money.

Yes. Renovating your basement has a return on investment (ROI) of 75%, meaning your remodel investment will significantly increase the value of your home. Besides the ROI, your family can enjoy a larger, more usable space while you live there. 

Although homeowners often use the terms basement remodeling and basement finishing interchangeably, they are quite different terms. 

Finishing a basement is the process of taking a basement space that is not habitable and adding elements to make it usable. This includes adding plumbing, flooring, and insulation.

Remodeling a basement means taking an already existing finished basement and changing it, often by adding or removing walls, adding plumbing, or changing the existing flooring.

There are several small, inexpensive upgrades you can make to upgrade your basement. Although you still need to adhere to building codes and obtain permits when necessary, you can complete small but mighty tasks like painting the masonry walls and installing entertainment devices to make the space more usable. 

The Williamstown, NJ homeowners’ guide to basement remodels

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