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Find Basement remodelers in Mahwah

Avatar for Owens Corning Basement Finishing System
Owens Corning Basement Finishing System
4.8(
535
)

Serving Mahwah, 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."
Additional Photos
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+40

Response time1 day
Response rate98%
189 neighbors recently requested a quote
Avatar for Apex Contracting and Remodeling Solutions, Inc.
Apex Contracting and Remodeling Solutions, Inc.
4.9(
54
)

Serving Mahwah, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Emergency services offered

Warranties offered

"The attention to detail with Apex was incredible. The team helped with every aspect of my design. Also their ability to overcome obstacles in the remodeling of kitchen was exceptional. Like with any remodeling there will be unexpected obstacles, but with Apex they came up with fixes and even adjusted the price for some inconvenience. Very professional business."
Basement
Basement Before
Bar Area Before
Bar
Kitchen

+21

Response time6 hrs
Response rate94%
6 neighbors recently requested a quote
Avatar for Prestige Design & Build Corp.
Prestige Design & Build Corp.
5.0(
36
)

Serving Mahwah, NJ and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"My basement got flooded during IDA, after contacting with couple of contractor I met with Matt, He came on time and explain everything what needs to be done also provide a reasonable price. He started to work immediately with his team. His work was very professional, he did everything as he promised and completed the work on time. He was the most professional, clean and trustful contractor I have met so far. He was always top of the every process and he was paying attention to every small details even I didnâ t see them during the construction. I highly recommend him, I also started recommending him my friends. I will 100% contact him even if I have a small project in the future, Thank you Prestige Design and Build for Beyond Expectation."
Demarest multiple room remodel
completion of renovation
Addition project progress
Rear addition project
Master bedroom suite

+497

Response time6 hrs
Recommended by66%of homeowners
Avatar for Elite Tech Remodeling
Elite Tech Remodeling
4.7(
154
)

Serving Mahwah, NJ and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"You won’t find a better remodeling business Elite Tech Remodeling. I am so pleased with the work they have done for me over the past couple months. A highly qualified architect will guide you through every detail of planning and design. On top of that, a contractor will lay out the project, and plan, problem solve and execute all while staying on schedule and in budget! I love my kitchen now. If you need any renovations I, HIGHLY, recommend these guys."
Additional Photos
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+56

Response time1 day
Response rate97%
Recommended by91%of homeowners
Avatar for The Finish Guys
The Finish Guys
5.0(
9
)

Serving Mahwah, NJ and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"I recently had the pleasure of working with The Finish Guys for a basement remodeling project, and I couldn't be happier with the results. From start to finish, the experience was exceptional, and I wholeheartedly recommend their services to anyone in need of a remodel. The team's punctuality and responsibility were outstanding. They consistently arrived on time, and their professionalism was evident throughout the project. I must also commend Matt, who was our main point of contact. His level of communication was top-notch. He kept us informed every step of the way and was quick to address any concerns or questions we had. Matt's dedication to ensuring our satisfaction was truly impressive. The quality of their work speaks for itself. The Finish Guys transformed our basement into a space that exceeded our expectations. Their attention to detail and craftsmanship are evident in every corner of the remodel."
Additional Photos
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+20

14 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for BAS Construction
BAS Construction
5.0(
41
)

Serving Mahwah, 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

4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Luxe Construction Group, LLC
Luxe Construction Group, LLC
5.0(
6
)

Serving Mahwah, NJ and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Mike and Asher were phenomenal. We did a basement remodel. Our basement was totally unfinished, and in a matter of weeks, it was turned into a beautiful area. We strongly recommend them for any work you need done, they are transparent, easy to work with, and talented! 5 stars all of the way!"
Modern Kitchen Remodel 9.5.22
Basement Remodel 6.14.22
Basement Remodel 4.3.22
Basement Remodel 5.19.22
Kitchen Remodel 11.5.21

+3

Response time4 days
Response rate85%
9 neighbors recently requested a quote
Avatar for Pickford Contracting Services, Inc.
Pickford Contracting Services, Inc.
4.9(
87
)

Serving Mahwah, NJ and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"Matt and Donna are the best. Both of them are very professional and I would recommend them to anyone who is looking for a contractor. They turned my basement from hell to heaven. I will definitely be using them for any remodeling I need to be done. I have nothing but good words for these two and their team. If anyone is looking for a contractor pick Pickford. I promise you won't be disappointed."
building new structure
Original door to be replaced
Shed rebuild
Structure and footing deterioration
Demo

+514

Response time10 hrs
Response rate92%
33 neighbors recently requested a quote
Avatar for Home Quality Remodeling
Home Quality Remodeling
5.0(
7
)

Serving Mahwah, NJ and surrounding areas

Approved

In business since 2004

Free estimates

Warranties offered

"I had a very smooth, professional experience with Home Quality Remodeling. The office has great customer service skills, the Renovation Specialist was punctual and was very knowledgeable. I feel confident in the capabilities of this company, highly recommend."
Kitchen Remodeling
Home remodeling
kitchen remodeling
Home remodeling
Kitchen Remodeling

+61

Response time1 day
Response rate100%
10 neighbors recently requested a quote
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FAQs for basement remodeling projects in Mahwah, NJ

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 Mahwah, NJ homeowners’ guide to basement remodelings

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