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Find Basement remodelers in Mountainside

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

Serving Mountainside, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1990

Free estimates

Warranties offered

"We love our basement remodel. Peter, Alex and his team were here when they said theyâ d be here, completed the job as described, and kept us updated along the way. The basement now looks and feels clean and bright. The additional space doesnâ t feel like a basement at all and is enjoyed by the whole family. We highly recommend Lux Renovations."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+40

Response time1 day
Response rate98%
196 neighbors recently requested a quote
Avatar for Indigo Construction Co.
Indigo Construction Co.
4.9(
19
)

Serving Mountainside, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Ryan & his team were wonderful & our bathroom came out beautifully! Ryan was extremely informative and helpful, answering our countless questions both before and during the remodel job. He worked diligently for three weeks to bring new life to the space. The quotes were also incredibly affordable given the high quality of the work. We would 100% recommend Indigo & we look forward to working with them again very soon."
Doors Project
Remodeling - Kitchen & Bathroom Project
Buena Vista
N. Mich
Remodeling - General Project

+64

Response time1 day
Response rate94%
5 neighbors recently requested a quote
Avatar for Heartland Village General Contracting and Handyman Services
Heartland Village General Contracting and Handyman Services
4.8(
182
)

Serving Mountainside, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1994

Free estimates

Emergency services offered

"We needed some work done in our basement and needed the work done quickly. Called Harvey and the work was done in 3 days and at a fair price. They remodeled our home in the poconos in less than one month and we get so many compliments from our renters. We will definitely use their services again. Thanks Harvey!"
FLOORING
Remodel basements
Bathroom renovation
KITCHEN REMODEL
Decks

+151

Response time1 day
5 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Prestige Design & Build Corp.
Prestige Design & Build Corp.
5.0(
36
)

Serving Mountainside, 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
The Better Basement Company
4.8(
25
)

Serving Mountainside, NJ and surrounding areas

Approved

In business since 2003

Free estimates

Warranties offered

"We just had our basement finished. Not re-finished but finished for the first time. The house was built in 1924 with a dirt floor in the basement and low hanging pipes, overall a very challenging job. We wanted to turn it to a family room with a full bath, laundry room, closets, etc. Joe's guys (Chico and Javier) did a fantastic job. They are knowledgeable, thorough, thoughtful, and creative. We would recommend them to anyone without hesitation."
 Before
 ICE CREAM BAR
 CREATIVE IDEAS
 CREATIVE OFFICE SPACE
 After

+13

Response time2 days
Response rate86%
3 neighbors recently requested a quote
Avatar for ABS Home Improvement
ABS Home Improvement
5.0(
43
)

Serving Mountainside, NJ and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

We’re a locally owned and operated company with over 22 years of industry experience. We value honesty and integrity in all aspects of our business. We offer a variety of Home Improvement services that are customizable to each individual project. We specialize in handyman/carpentry work and a variety of related service and repair projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction! \n\nNeed Financing for your project? Check out our web page or this link https://www.mysynchrony.com/mmc/P1222030502

Shaker Cabinet Install, Tile Back-Splash
Tile Flooring & Farm Sink Install
Appliance(s) Installation
Bathroom
Sink, Shower & Toilet

+2

Response time1 day
Response rate91%
1 neighbors recently requested a quote
Avatar for Gomez Vision Construction, LLC
Gomez Vision Construction, LLC
4.9(
57
)

Serving Mountainside, NJ and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Jorge and his team were awesome from start to finish. I reached out to them for a company to frame and drywall my basement remodel, but after meeting with Jorge I knew the could handle the entire job from demo to finish. Jorge was great to work with and his team was great as well. Jorge can handle any project that your home may need. Highly recommend this company."
COMPLETE HOME REMODELING
job#387 house renovation
job#391
master bath
hard wood refinishing

+326

Response time3 hrs
6 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Skies Are The Limit, LLC
Skies Are The Limit, LLC
4.8(
45
)

Serving Mountainside, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Emergency services offered

"Adrian did some work for me and my basement was the best quality work I have a hard done I would recommend him to a lot of people Quality work is what you're looking for I appreciate his business of course I will always recommend him keep up the good work"
Kitchen Renovation
Bathroom
Bathroom Renovation
Kitchen Renovation
Bathroom Renovation

+58

4 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Legacy Construction & Landscaping, LLC
Legacy Construction & Landscaping, LLC
4.9(
9
)

Serving Mountainside, NJ and surrounding areas

Approved

In business since 2015

Free estimates

Small jobs welcome

"Working with Legacy Construction&Landscaping LLC has been a great experience. They have been very responsive and are continuously working to keep the clients needs at the forefront. I would recommend them to anyone requiring home service and construction. Iâ  m very happy with my new bathroom remodel"
Basement Remodel
Basement Remodel
Basement Remodel
Basement Remodel
Basement Remodel

+15

Response time4 hrs
13 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for American Home Remodeling Inc
American Home Remodeling Inc
4.9(
473
)

Serving Mountainside, NJ and surrounding areas

Approved (Corporate)

In business since 1994

Free estimates

Warranties offered

"We chose American Home Remodeling for our bathroom remodeling. This was my first time using this company and I'm pleased with their work. They were very professional and did a great job."
Driveways - Asphalt Project
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+29

19 neighbors recently requested a quote
Recommended by96%of homeowners
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FAQs for basement remodeling projects in Mountainside, 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 Mountainside, NJ homeowners’ guide to basement remodelings

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