Updated June 2026
Basement Apartment / In-Law Suite · Berkeley Heights, NJ
Interior remodeling for legal basement apartments, accessible in-law suites, and rental units in Berkeley Heights. We plan layouts, code compliance, finishes, and tenant-ready systems.
We remodel basements into self-contained apartments or in-law suites, adding kitchens, bathrooms, sleeping areas, egress, insulation, ventilation, and sound control. Work stays interior-focused: framing, drywall, flooring, cabinetry, tile, interior plumbing fixtures, electrical setups for kitchens and baths, interior doors and trim, painting, and lighting.
Our work
FAQ
Costs vary with size, finish level, and mechanical needs. Typical interior-only conversions in Union County start with a baseline estimate after an on-site walkthrough; we provide a written cost range in the estimate phase once we confirm current conditions and permit requirements.
Most projects take 8–14 weeks from start of construction, depending on scope and inspections. Timeline includes demolition, rough-ins, insulation, finishes, and final inspections; permit wait times may extend the calendar.
You can usually remain in the house, but expect intermittent noise, dust, and temporary water/electrical shutoffs tied to rough-in stages. We isolate work areas and maintain clear access to main living spaces where possible.
Schedule an on-site walkthrough. We review desired layout, verify measurements, note mechanical access and egress, then deliver a written scope and estimate to help you compare options and decide on permits and start dates.
Real basement apartment / in-law suite projects in New Jersey homes — same room, before we started and after we finished. Move the handle.
Drag the handleSwipe the handle or use ←→ to compare before and after.
Edison basement recreation room with game zones
Edison, NJ
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 Berkeley Heights home, walk the space, take measurements, and put a written scope together on-site. About 45-60 minutes.
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Berkeley Heights, 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 Berkeley Heights 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 Berkeley Heights, 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.
