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Find Basement remodelers in Allentown

Avatar for TQ Contracting LLC
TQ Contracting LLC
4.9(
53
)

Serving Allentown, NJ and surrounding areas

Angi Approved

In business since 2007

Free estimates

Emergency services offered

"Tom and his crew did a beautiful job. Everything was done professionally and showed great attention to detail. I highly recommend TQ Contracting. The bathroom came out better than I envisioned."
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+112

Response time1 day
Response rate96%
12 neighbors recently requested a quote
Avatar for Fiorino Custom Homes
Fiorino Custom Homes
5.0(
29
)

Serving Allentown, NJ and surrounding areas

Angi Approved

Super Service Award Winner

In business since 1981

Free estimates

Warranties offered

"Santo has now completed the replacement of all doors in our home. Which looks so beautiful and makes our home more up to date and provides such a clean look. Santo installed a new hard wood floor in our entire main floor level. He went to the flooring store to help us pick out the flooring and he was able to advise the flooring rep of exactly what flooring and materials were needed to complete the job. He built valances for our kitchen windows, patio door, and hung the new blinds for us which look fabulous. In addition to providing more storage space for us, he built a coat rack and shelf for my husband's hats in our basement. Saved us space and it looks great as well as being very functional. He built a covering made of wood and placed it around the base of our fireplace to hide speaker wires and it is simply beautiful. Santo is excellent in all that he does and is an expert woodsmen. He is very flexible and will work with your schedule. I HIGHLY recommend him for whatever your home repair needs are. Our friends and family are always complimenting the transformation he made to our home."
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+41

Response time1 day
Response rate98%
1 neighbors recently requested a quote
Avatar for Owens Corning Basement Finishing System
Owens Corning Basement Finishing System
4.8(
534
)

Serving Allentown, NJ and surrounding areas

Angi Approved

Super Service Award Winner

In business since 1990

Free estimates

Warranties offered

"Our existing Owens Corning wall panels had been damaged in a basement flood. Although the framework and panels had changed since our initial install some 20 years ago, they custom made new panels that fit perfectly. Additionally, they replaced interior doors and repaired drywall. The work was done on our schedule and done to our satisfaction. Their customer service was great. They came back out to adjust a door that wasn't closing perfectly."
Response time1 day
Response rate98%
81 neighbors recently requested a quote
Avatar for Quality 1st Basement Systems, Inc
Quality 1st Basement Systems, Inc
4.7(
176
)

Serving Allentown, NJ and surrounding areas

Angi Approved

In business since 1998

Free estimates

Emergency services offered

"Service was great from sales, to installation, to post installation support. Very responsive, very professional. It's hard to find in this 'space'--there are a lot of shady people in basement water damage/repair, and this place exceeded expectations. We've had our repair in place for 4+ years, with only 1 small issue on a wall seam crack, and that was fixed within 24 hours of reporting the issue. Stand up place! Thank you for such great service and support."
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+129

Response time10 hrs
Response rate99%
9 neighbors recently requested a quote
Avatar for Ramirez Family Construction LLC
Ramirez Family Construction LLC
5.0(
8
)

Serving Allentown, NJ and surrounding areas

Angi Approved

In business since 2000

Free estimates

Warranties offered

"I could not be more happier with the work JoeAngel did on installing my new doors. It wasn’t easy as the basement door is an odd size and the greenhouse door opening wasn’t originally constructed to have 2 doors- but he pulled it off without any issues. Please call him if you need any home improvements. I’m glad I did. He is thorough and always stays in contact- great work! I have another project in the works for him to do in the near future. "
Full renovation
Full renovation
Full renovation
Full renovation
Full renovation

+309

2 neighbors recently requested a quote
Avatar for Garden State Interior Solutions, LLC
Garden State Interior Solutions, LLC
5.0(
5
)

Serving Allentown, NJ and surrounding areas

Angi Approved

In business since 2025

Free estimates

Credit card accepted

Garden State Interior Solutions is a licensed and insured full-service remodeling contractor serving homeowners across New Jersey. We specialize in custom decks, basement finishing, kitchen and bathroom remodels, siding, interior and exterior renovations, door installation, and finish carpentry. We show up on time, communicate clearly, and deliver quality craftsmanship you can see and feel. Every project is treated with the same care and attention — whether it's a single room refresh or a full home transformation. Your home is your biggest investment. We help you protect and improve it. Call us today for a free estimate.

Deck Sayreville
Deck Sayreville
Deck Sayreville
Deck Sayreville
Deck Sayreville

+13

9 neighbors recently requested a quote
Avatar for Riverside Construction & Remodeling, LLC
Riverside Construction & Remodeling, LLC
4.8(
6
)

Serving Allentown, NJ and surrounding areas

Angi Approved

Super Service Award Winner

In business since 1983

Free estimates

Emergency services offered

"Excellent work, workers always showed up on time. If I had any questions even on weekends Gary always answered his phone. My wife was happy and that is what counts. If I needed any other work I would call Gary because I trust him to do the job correctly at a fare price."
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+4

5 neighbors recently requested a quote
Recommended by100%of homeowners
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FAQs for basement remodeling projects in Allentown, 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 Allentown, NJ homeowners’ guide to basement remodelings

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