Updated May 2026
Basement Apartment / In-Law Suite · Westfield, NJ
Convert an underused basement into a safe, code-compliant rental or in-law apartment. We handle layout, egress, mechanical coordination, and finishes.
We focus on interior work for basement apartment / in-law suite westfield nj projects: framing, insulation, drywall, egress windows or doors, finished flooring, kitchens, baths, electrical and interior plumbing (fixtures and connections). We work with local code requirements in Union County and provide plans that meet permitting guidelines.
Our work
FAQ
Costs vary by scope: simple studio finishes are lower; full apartments with kitchens and baths cost more. Expect a detailed, itemized estimate after an on-site walkthrough so we can account for egress, mechanical upgrades, and code work.
Typical interior-only builds take 8–14 weeks after permits are approved. Timeline depends on permit turnaround in Union County and selected finishes; we review schedule during the initial walkthrough.
You’ll see dust, noise, and daytime crew activity. We contain dust, set temporary pathways, and schedule noisy work for daytime hours. We coordinate with you about access and sensitive areas before starting.
Request an on-site consultation and walkthrough. We’ll review layout options, local code needs, and provide a written estimate and permit plan as the next steps.
Real basement apartment / in-law suite projects in New Jersey homes — same room, before we started and after we finished. Move the handle.
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Reviews
“I highly recommend Home Concept Construction. This was truly the best construction company I’ve ever worked with in my lifetime. Their team was professional, reliable, and incredibly efficient from start to finish. They are men of their word—honest, hardworking, and committed to delivering quality results. Whether i…”
monique venable
6 months ago
“Oscar and his team are expert craftsmen. Our kitchen renovation is so beautiful the house looks like a new build. They came when said they would and returned all calls promptly. I highly recommend Home Concepts construction and will be using them again for other projects.”
Donna G
a year ago
“Oscar and his team are second to none. Their work is of high quality, with precision. The team renovated our kitchen and family room, installed engineered hardwood floors throughout our home, painted plus some. They are extremely professional, flexible and accommodating. Oscar is a creative thinker and designed g…”
Audrey Sudran
a year ago
Verified reviews from Home Concepts Construction’s Google Business Profile. Read all reviews on Google →
Schedule
Pick a day and time that works for you. We come to your Westfield home, walk the space, take measurements, and put a written scope together on-site. About 45-60 minutes.
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Westfield, NJ
Free in-home walkthrough. Written scope before you commit. One team from demolition to final inspection.
Get a free quote
Tell us a little about the project and we'll get back within one business day with real answers about how it would go in a Westfield home.
Free in-home visit
We come to you. Measure, plan, and quote on-site.
Licensed in NJ
NJ HIC #13VH10078600
Real response
Within one business day.
See more from Basement Apartment / In-Law Suite or learn about remodeling in Westfield, NJ.
Nearby towns
Same crew, same standards one town over. Tap to see how the project would go there.
Ready to start?
No pressure, no obligation. We’ll walk through what’s worth doing first, what can wait, and what to watch out for — before anyone talks contracts.
