“The Princeton contractor priced the job before anyone looked at the 1890s plumbing. Week two, new price.”
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General Contractor In Mercer County, NJ — Repairs & Remodels, One Crew
Mercer County is Princeton's historic homes and university streets, Hamilton's 1950s–70s Capes and ranches, the 1980s–2000s subdivisions of West Windsor (Princeton Junction), Robbinsville and East Windsor, small-town Pennington and Hopewell, and Trenton — the county seat and the state capital — with its rowhouses and Victorians. You get one licensed crew for the repair or the remodel, a price in writing before we start, and a real person on the phone 24/7.
Licensed & insured · 2,000+ NJ projects · 7 years · a real person answers 24/7

First Call Contracting is a licensed, insured general contractor serving Mercer County, New Jersey from our base in Paramus: 24/7 emergency repairs, kitchens, bathrooms, basements, roofing, siding, windows, plumbing, electrical, heating and AC. Written price before work starts, no deposit, one dedicated crew. Call (201) 676-3099 or book a free estimate.
What we do in Mercer County
Searched “plumber near me”, “roofer near me” or “contractor near me” in Mercer County? Every trade below is our own licensed crew, dispatched from Paramus — one company, one written price.
- Plumbing in Mercer County (licensed master plumber on the team)
- Heating & AC in Mercer County
- Roofing in Mercer County
- Bathroom remodeling in Mercer County
- Kitchen remodeling in Mercer County
- Electrical in Mercer County
- Windows & doors in Mercer County
- Siding & exteriors in Mercer County
- Basement finishing in Mercer County
- Decks & outdoor living in Mercer County
- Home additions in Mercer County
- Interior remodeling in Mercer County
- Attic & garage conversions in Mercer County
- Handyman & small repairs in Mercer County
- 24/7 emergency repairs in Mercer County
Every one of these gets a free in-home visit and a written price before work starts. See every service we offer →
What breaks in Mercer County houses
Princeton, Pennington and Hopewell houses from the 1800s and early 1900s carry plaster, slate, cast iron and old wiring — with historic-district review in parts of Princeton. Hamilton and Ewing's post-war Capes and ranches are on second roofs, original supply lines and 1960s bathrooms. West Windsor and Robbinsville builds from the 80s and 90s are hitting first-roof, first-window and first-deck age together. Trenton's rowhouses share walls and stacks, so one leak is often two neighbors' problem.
We inspect behind the walls before we quote, so what's really there is in the itemized price. The number you sign is the number you pay.
Response times
Emergencies — burst pipes, roof leaks, storm damage, basement flooding, no heat — get a live person 24/7 and same-day dispatch of the nearest crew, with an honest arrival window. Scheduled projects run statewide: planned trip, one crew on site until the job is done, price built from the scope and not the drive.
Permits in Mercer County
Permits in New Jersey are pulled town by town, and Mercer County has 12 municipalities. We pull yours — Hamilton, Princeton, Lawrence, West Windsor, Ewing, Trenton, Hopewell Township, whichever it is — and meet the inspectors. Princeton's historic preservation commission reviews exterior work in its districts; septic and well changes in Hopewell Township go through the county health department. Every step is named in your estimate before work begins.
Towns we serve in Mercer County
All 12 Mercer County municipalities, from Hopewell to Hightstown. Don't see your town by name? Call anyway — we cover all of New Jersey.
- East Windsor
- Ewing
- Hamilton Township
- Hightstown
- Hopewell Borough
- Hopewell Township
- Lawrence Township (Lawrenceville)
- Pennington
- Princeton
- Robbinsville
- Trenton
- West Windsor (Princeton Junction)
typical fixed-price range — your exact number goes in writing after a free visit
Small repairs and handyman visits start around $250. Bathrooms run $8K–$85K+, kitchens $35K–$150K+, finished basements $30K–$90K+, a new asphalt roof $9K–$30K+, additions $90K–$300K+. Your exact number comes from a free in-home visit — itemized, fixed, in writing — and it doesn't change with the county line.
How we beat the big chains: No franchise fees, no commissioned salesmen, no rented subcontractors — that's typically 15–30% under national-brand quotes for the same or better spec. Bring us any written quote and we'll match the scope line by line.
What people hate about other companies — fixed here
“Our Hamilton roofer took a deposit and pushed the start date four times.”
“Three trades, three invoices, three people blaming each other when the bathroom leaked.”
Mercer County questions, answered
Do you handle Princeton's historic review?
Yes. Exterior changes in Princeton's historic districts go through the preservation commission; we prepare the package and handle the meeting. Interior work is a standard permit that we pull and inspect through.
Can you do a whole 1960s Hamilton Cape at once — roof, kitchen, bath, electrical?
That's the kind of job one crew is built for. One inspection, one itemized price for everything you approve, one schedule. No waiting on someone else's plumber.
How fast for an emergency in Mercer County?
A real person answers 24/7 and dispatches the nearest crew the same day. You get an honest arrival window, and you can text a photo so we arrive with the right parts.
Is there a travel charge from North Jersey?
No. Your price is built from the scope of work and fixed in writing. Mileage is our cost, not yours.
Is there a First Call crew near me in Mercer County?
Yes. We're based in Paramus in Bergen County and our own crews cover Mercer County every week — plumbers, electricians, HVAC techs, roofers and carpenters, no subcontractors. Emergencies go to the nearest crew, day or night. Call (201) 676-3099 and a real person answers.
Mercer County: make the first call the only call.
Also serving Middlesex County, Somerset County, Hunterdon County, Monmouth County, Burlington County · free in-home consultations
Or call Alex direct: (201) 676-3099
Burst pipe. No heat. Roof leaking. We answer at 2 AM.
A real person picks up every hour of every day. We tell you what to shut off first, then send the nearest crew.