A DMF Construction company · NJ HIC #13VH00991500 Serving Union, Somerset & Morris County · Mon–Fri 8:00 AM – 4:00 PM

Union, Union County, NJ 07083

Basement finishing in Union, NJ

We finish, remodel, and add bathrooms and egress bedrooms to basements in Union and across Union County, working out of DMF Construction's shop in Scotch Plains.

Union homes and their basements

Union Township has one of the largest stocks of 1930s through 1950s Capes and colonials in the county. Many are on their original layout, which makes them ideal for dormers, finished basements, and bathroom updates that bring them up to how families live now.

Capes and the family room they're missing

Many Union Capes were built with a small living room and no family room. A finished basement gives you that space without an addition. The main planning issue in Capes is usually the main beam and ductwork running down the middle, which we box into clean soffits.

Center-hall colonials

Colonials in Union usually sit over a full basement with good ceiling height, which makes them some of the easiest basements to finish. We often find old oil tank lines, cast-iron stacks, and ungrounded wiring to clean up first.

Pre-war basements

Pre-war Union homes often have lower ceilings, old coal or oil equipment, and foundations that have seen a century of weather. Knowing what to fix first is where an experienced contractor saves you money.

Union pricing

Most Union basement projects run $45,000 to $85,000 for 600 to 1,000 square feet. Adding a full bathroom typically adds $25,000 to $45,000, and each egress window adds $5,000 to $8,000.

Build a planning estimate with the basement cost calculator →

Permits in Union

Basement finishing in Union requires a construction permit from the Union construction office, with separate sub-code reviews for building, electrical, plumbing, and fire. DMF prepares the drawings, files the application, and schedules every inspection. You get the certificate of approval at the end, which matters when you sell.

How a Union project runs

  1. Free visitWe measure, check moisture and ceiling height, and talk through layout.
  2. Written priceA detailed scope and a firm price, usually within a week.
  3. PermitsDMF prepares drawings and files with your town.
  4. BuildFraming, rough-ins, inspections, drywall, finishes. Most jobs take 5–8 weeks.
  5. WalkthroughFinal inspection, punch list, and your certificate of approval.

What neighbors say

“Any changes made along the way were easily dealt with and tended to right away.”
Bill · Union, NJ
“The projects went pretty smooth, they are very honest and fair, punctual which most important now a days.”
Rob · Mountainside, NJ

Union questions

Do I need a permit to finish a basement in Union?
Yes. Union requires a construction permit for basement finishing, with inspections for framing, electrical, plumbing, and insulation. DMF files the application and meets the inspectors.
How soon can you start a basement in Union?
We can usually visit within a week. Construction typically starts once permits are issued, about 2 to 4 weeks after you sign.
Do you have references in Union?
Yes. DMF has worked in Union and the surrounding Union County towns for years. Ask during the estimate and we'll connect you with past clients nearby.

Our services in Union

Ready to use your basement?

Free in-home estimate. Written scope, clear pricing, no pressure.

Call (908) 389-7789