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Serving Mercer County, NJ

General Contractor in Mercer County, NJ

Home remodeling and commercial construction across Mercer County, from Trenton to Princeton, without the stress, delays, or surprises. You get our licensed crew, transparent pricing, and work that finishes on time.

5-Star Rated
Licensed
Insured
Bonded
Fast Response
Free Estimates
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"Jefferson and his crew did a fantastic job on my warehouse in Newark NJ. They are very reasonable and very clean. Highly recommend him and his guys for any type of repair work."

Rd Jets
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Request a Mercer County quote

Tell us about your project in Trenton, Princeton, Hamilton, or anywhere in Mercer County, and we will follow up with a free, no-pressure estimate.

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No spam, no obligation. We'll call you to set up your free estimate.

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A local team that knows Mercer County

Mercer County does not build like anywhere else, and we know it well after years on its Trenton row homes, historic Princeton colonials, and busy Route 1 corridor. We plan each job around the building it actually lives in, from the row homes of Trenton out to the historic streets of Princeton and the newer communities around the Windsors, handling the whole project start to finish.

  • From row homes to colonials

    Trenton brick row homes and Victorians, the historic colonials around Princeton and Pennington, and the mid-century capes and split-levels in Hamilton, Ewing, and Lawrence.

  • Permits and inspections handled

    We pull the permits with your town's building department and see the inspections through to sign-off, so you do not have to chase paperwork.

  • Homes and businesses

    Renovations and additions for homeowners, plus office, retail, and restaurant build-outs along the Route 1 and Route 33 corridors.

Why Mercer County homeowners and businesses choose us

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Local to Mercer County

Our licensed crew covers every Mercer County neighborhood, on site fast when you need us.

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Licensed, Insured & Bonded

A licensed New Jersey general contractor you can trust on site.

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Transparent Pricing

Clear quotes up front, with no surprise charges later.

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On-Time Completion

We plan carefully and finish when we say we will.

Mercer County towns we serve

We cover every Mercer County town, cities and townships alike, from Trenton out to Princeton and the Windsors. If your town is on this list, we can get out to you.

Trenton and the river towns

Trenton, the county seat, plus Ewing and Hamilton, with their row homes, capes, and older neighborhoods.

Princeton and the north

Princeton, Lawrence, Hopewell, and Pennington, with their historic colonials and larger lots.

The Windsors

West Windsor, East Windsor, and Robbinsville, with their newer planned communities and modern layouts.

The Route 1 corridor

Office, retail, and commercial spaces along Route 1, Route 33, and the busy corridors that tie the county together.

We serve every Mercer County town. Call (908) 344-2984 and we will confirm coverage for your address and set up a free estimate.

What our clients say

A 5.0-star rating from 40+ verified Google reviews across our residential and commercial work in New Jersey.

"We are very happy with our Ultimate Contractors Corporation. Strong communication, fair price, quality work, a crew with great attitudes, and there was a clear intention to deliver a final product that exceeded our expectations. I highly recommend them. Thank you!!!"
Najib Moukarzel
"Phenomenal job from concept to creation and implementation. Solid and reliable work finishing on time, on target and on budget. Jeff helped me designed my kitchen. I was on the fence originally because my cabinets were not old. But once completed, I'm glad I replaced it. Definitely increased the value of the property."
Hai
"Excellent service from start to finish. The team was professional, punctual, and paid close attention to every detail. They answered all my questions, kept me updated throughout the project, and delivered high-quality work. It's hard to find contractors you can truly trust, and this company exceeded my expectations. I highly recommend them for anyone looking for reliable and professional contracting services."
SHOP SHERMAINE LLC
"After having a sudden water leak and having the whole house fall apart, I found the UCC team and Jeff was very professional from the very beginning. He was very attentive to everything that needs to be done and most importantly he understood my urgency and started working right away. Words can't even explain how grateful I am for the amazing work Yico and Patricio did. I am so happy with the UCC team and their work."
Ismot Tuba
"I cannot recommend them enought. I am a busy person with a family and I had a severe unexpected plumbing issue with my bathroom. I am not a handyman by any means. I started calling companies and they either stopped replying or wanted my to charge me crazy amounts. I was frustrated. I friend recommended me to this place and I am very thankful. They helped me right away and explained me all I needed to know about the price I was been charge. Specifically that guy tommy. He is a man of a few words. However, was really nice and professional. REALLY RECOMMEND THIS PLACE"
Holger Damian Velez Garcia
"After getting multiple quotes, I choose Ultimate Contractors Corp. to replace my patio. I would highly recommend UCC. They were amazing. After I bought my house, I had an ugly backyard with lots of mosquitoes in the summer. I then decided to get most of the yard covered with concrete pavers. They came in and designed the area, helped me with color choices, and most important, they finished ON TIME! The construction crew was professional, clean and courteous. Again, I would highly recommend them for any home improvement projects you are considering. Great job guys, thank you!"
Joselyne Rivera
"I hired Jeff and his team to build an addition on my house after considering several companies, and found his to be the most reasonably priced and well-prepared for the project. From start to finish, the team worked tirelessly, listened to all concerns, and made every requested accommodation. Jeff remained accessible and was very communicative any time an issue or question came up. The addition came out terrific, and I would highly recommend Ultimate Contractors Corporation to anyone needing work done on their home."
Chris Cooper
"Had a really great experience with Ultimate Contractors Corporation on a new construction project. Everything went super smooth from start to finish, and the quality of the work came out even better than I expected. Jeff and the team are awesome to work with. They know what they're doing, stay on top of everything, and actually care about doing a good job. Communication was easy, they showed up when they said they would, and handled everything the right way. It's hard to find a solid, trustworthy crew, but these guys are the real deal. Definitely recommend them if you want the job done right."
MJ Piping Contractor LLC

We serve all of Mercer County

We cover every Mercer County town and the surrounding area, and we serve clients within about a 45 to 60 minute drive. Give us a call and we will set up a free, no-pressure estimate at your home or business.

Ultimate Contractors Corporation
185 Johnson Ave
Newark, NJ 07108
(908) 344-2984
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We serve homes and businesses across Mercer County and the wider New Jersey region. Call (908) 344-2984 and we will set up a free estimate at your property.

Mercer County questions, answered

Do you serve all of Mercer County, NJ?
Yes, Ultimate Contractors Corporation serves all of Mercer County, NJ. From the county seat of Trenton out to Princeton, Hamilton, Ewing, Lawrence, Hopewell, West Windsor, East Windsor, Robbinsville, and Pennington, we cover homes and businesses across the whole county.
Are you a licensed general contractor in Mercer County?
Yes, we are a licensed, insured, and bonded general contractor holding NJ Home Improvement Contractor license #13VH12312800. We take on both residential and commercial work throughout Mercer County and the wider central and northern New Jersey region.
Do you work on the older homes in Trenton and Princeton?
Yes. Mercer County has many older homes, from Trenton row homes and Victorians to the historic streets around Princeton and Pennington. We are comfortable working with plaster, knob-and-tube wiring, original trim, and the unexpected conditions that come with century-old buildings, and we budget for them up front.
Do you handle both home and commercial projects in Mercer County?
Yes, we handle both. On the residential side we do renovations, kitchens, bathrooms, additions, basements, masonry, and concrete. On the commercial side we do office and retail build-outs, restaurant build-outs, tenant improvements, and warehouse work, serving Trenton, Hamilton, Lawrence, the Windsors, and the rest of Mercer County.
How fast can you give me an estimate in Mercer County?
We schedule Mercer County walkthroughs promptly and follow up with clear pricing, usually the same business day. Call (908) 344-2984 or request a quote online and we will set a time to meet you at your Trenton, Princeton, Hamilton, or other Mercer County property.
Is the estimate free, and do you offer financing?
Yes, estimates are free, and financing is available so you can start sooner. We walk your project, talk through your goals and budget, and put clear, transparent pricing in writing before any work begins anywhere in Mercer County.
Do you pull the permits and handle inspections in Mercer County?
Yes. As a licensed New Jersey general contractor, we pull the required permits with your local Mercer County building department, whether that is Trenton, Hamilton, Princeton, or one of the townships, and we coordinate the inspections through to sign-off. Permitting timelines vary by town, so we factor each municipality's process into your schedule up front.
How long does a typical Mercer County renovation take?
It depends on scope. A single bathroom or a focused project often takes a few weeks, while a full kitchen, addition, or commercial build-out can take longer, and older Trenton or Princeton homes can add time once conditions behind the walls are uncovered. We give you a realistic schedule with your written quote and work to finish on time.
25+
Years of Experience
250+
Projects Completed
40+
5 Star Reviews
12
NJ Counties Served

Ready to start your Mercer County project?

Get a free, no-pressure estimate from us. We're a family-owned, licensed New Jersey general contractor - insured, bonded, rated 5.0 stars, with financing available through Wisetack.