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  • Verified reviews icon119
    Verified basement remodels reviews

Top-Rated Basement remodelers in Allendale - Updated Nov 2026

Avatar for Prestige Design & Build Corp.
Prestige Design & Build Corp.
5.0(
40
)
Basement - Remodel

Serving Allendale, NJ and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"I worked with Prestige on a few, somewhat unique, projects recently, including renovating an old detached garage and fixing up my basement after a French drain/sump pump install. It was definitely a 5 star experience. Matt seemed more like a partner than a contractorâ ¦he brought creative solutions and ideas to the project, was transparent with updates and showing off milestones as they were completed, and even went the extra mile to ensure quality (example: he insisted that siding be sent back because it did not quite match the rest of the house). He also hooked me up with a custom side door for my EV charger cord that is going to make charging outside so much easier. I will definitely be hitting him / Prestige up again in the future."
Demarest multiple room remodel
completion of renovation
Addition project progress
Rear addition project
Master bedroom suite

+542

Response time6 hrs
1 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Lilco Construction Inc
Lilco Construction Inc
5.0(
10
)
Basement - Remodel

Serving Allendale, NJ and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"Lilco has done numerous jobs here to our Satisfaction. Owner is honest, knowledgeable about various home construction projects and easy to work with. Bring your own vision or let him help you bring a general goal/vision to life. He’s been able to help me troubleshoot with success."
1 neighbors recently requested a quote
Recommended by50%of homeowners
Avatar for CSZ Construction
CSZ Construction
4.6(
69
)
Basement - Remodel

Serving Allendale, NJ and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Cesar and his crew just finished a remodel of my master bathroom. This is the second major project completed in my home by CSZ (prior kitchen remodel) and once again they exceeded my expectations. Cesar worked with me along the way to come up with the perfect design to ensure all my requirements were met. He is knowledgeable and his attention to detail is second to none. The CSZ crew, Armondo and Benjamin were also a pleasure to work with. They are knowledgeable, trustworthy, and hardworking. They also did an exceptional job cleaning up at the end of each work day. My dog even loves them! I highly recommend CSZ Construction. They will most certainly be back for future projects in my home!"
 ALL COLUMNS FINISH
OLD DECK
Livinroom
 PAINTING
PREPARING FOOTINGS

+168

Recommended by93%of homeowners
Avatar for CHARLY'S PAVING & SEALCOATING LLC
CHARLY'S PAVING & SEALCOATING LLC
4.8(
16
)
Basement - Remodel

Serving Allendale, NJ and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"AMAZING. Angelo is professional, responsive, he has a great team who does top notch work. My wife and I asked him to remodel our sun room, they made such an amazing room for our family we ended up asking them to re-wrap the entire house. So glad we found CR, and they better stay by the phone because we’ll have more work to be done."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Response time1 day
Response rate100%
1 neighbors recently requested a quote
Avatar for Apex Contracting and Remodeling Solutions, Inc.
Apex Contracting and Remodeling Solutions, Inc.
4.8(
59
)
Basement - Remodel

Serving Allendale, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Emergency services offered

Warranties offered

"Apex Contracting is a top notch company delivering top notch services. My home was damaged by Storm Ida and the team performed amazing work to rehab/replace and install new water draining/sump pump lines in my basement, waterproof basement, install new windows and doors! This was a massive job. The team is very knowledgeable, clean, timely, and respectful! Huge shoutout to Andrew the owner for running an excellent business and service! He came highly recommended and we see why. We will be working with Andy again in the near future!"
Basement
Basement Before
Bar Area Before
Bar
Kitchen

+21

Response time6 hrs
Response rate94%
3 neighbors recently requested a quote
Avatar for Home Quality Remodeling
Home Quality Remodeling
5.0(
7
)
Basement - Remodel

Serving Allendale, 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."
3D Bath Design
3D Luxury Shower
3D Custom Bathroom
3D Grey Modern
3D Bath & Storage

+59

Response time1 day
Response rate100%
12 neighbors recently requested a quote
Avatar for Luxe Construction Group, LLC
Luxe Construction Group, LLC
5.0(
8
)
Basement - Remodel

Serving Allendale, 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
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Basement Remodel FAQs, answered by experts

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.

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.

A finished basement does not always count as square footage, as this varies by state regulations. In areas that allow below-grade spaces to be included in a home's official square footage, the basement must typically meet certain conditions. These conditions often include having a functional egress and being a livable space with flooring, finished walls, and temperature control. To be certain, contact your local assessor to confirm your area's specific policies regarding basement square footage.

Permits may be required for major repairs, structural work, or electrical and plumbing restoration after a flood. Check with your local building department to determine permit requirements and associated fees for your flooded basement cleanup project. Obtaining the correct permits helps ensure work is done safely and up to code.

In many homes, an unfinished basement is an ideal place for an in-ground pool. The concrete floors, protection against water damage, and access to the ground below your home make this a large contender. Speak with a local basement remodeling contractor to ensure your space is right for the large construction.

The Allendale, NJ homeowners’ guide to basement remodels

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