Home Addition Contractor in Newark, NJ
More room for your family, without the stress, delays, or surprises. We design and build rear and second-story additions, in-law suites, sunrooms, and bump-outs across Newark and northern New Jersey, and we handle the permits, the plans, and the build from day one to the final walkthrough.
"I had a great experience working with this company. They were punctual, kept clear and consistent communication, and delivered high-quality results. The entire team was professional and efficient."
Request your free home addition quote
Tell us about the space you want to add and we'll get back to you the same business day with clear next steps.
More room for your family, without moving
A home addition in Newark, NJ adds new, permanent square footage to the house you already own, so you get the space your family needs and stay on the block you love instead of paying to move. Most homeowners worry about the same three things. Here is how we take each one off your plate.
- We protect your home
We seal off the work area, contain dust, and keep the site clean so your daily life is protected while we build.
- On time, as promised
A realistic schedule in writing before we start, updates at every stage, and we never leave your home open to the weather.
- No hidden costs
The full price up front with no surprise fees, plus financing to help you start sooner.
Types of home additions we build
Whatever space your family needs, our licensed team designs and builds it, matched to your home and your block.
Rear & Side Additions
Extend out the back or side for a bigger kitchen, family room, primary suite, or home office on your existing lot.
Second-Story Additions
Build up instead of out to add bedrooms and baths without giving up your yard, with the structural reinforcement done right.
Bump-Outs & Sunrooms
A few extra feet that change a room, plus bright four-season sunrooms that connect your living space to the yard.
In-Law Suites & Dormers
A self-contained suite with its own entrance for multi-generational living, plus dormers that add headroom and light upstairs.
Quick answers about home additions
What's included
Design help, zoning checks, permits and inspections, foundation and structural work, framing, roofing, siding, windows, plus electrical, plumbing, HVAC, insulation, drywall, and finishes, all tied into your existing home under our licensed team.
Best for
Growing families, multi-generational living, or anyone who needs more room and would rather add on than move out of a neighborhood they love.
Typical timeline
Most additions take a few months from the first day of construction to the final walkthrough, depending on size and complexity. We give you a realistic schedule up front and hold to it.
Our design-build process
Free estimate
We visit your home, talk through how you want to use the new space, and give you clear pricing in writing.
Design & permits
We lock the plans, materials, and timeline, confirm zoning and setbacks, then pull the permits for you.
Build
Our licensed crew handles foundation, framing, roof tie-in, and finishes, keeps the site clean, and keeps you updated.
Final walkthrough
We finish on time, pass inspection, and walk the new space with you before we call it done.
Why homeowners choose us for their addition
Licensed, Insured & Bonded
A licensed New Jersey general contractor you can trust on site.
Transparent Pricing
Clear quotes up front, with no surprise charges later.
Clear Communication
You always know what is happening and what comes next.
On-Time Completion
We plan carefully and finish when we say we will.
What our clients say
A 5.0-star rating from 40+ verified Google reviews from New Jersey homeowners who trusted us with their projects.
"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."
"I had a great experience working with this company. They were punctual, kept clear and consistent communication, and delivered high-quality results. The entire team was professional and efficient. Truly an exceptional team - I would definitely hire them again."
"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."
"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"
"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."
"Professionally done work and the customer service is just as good as the work done. Jefferson and his crew are experts in their craft and more importantly he will explain to you everything that will be done in the project, and will work with you every step of the way. He accepted a home renovation project of mine and I was impressed by the work done, even with the weather challenges he and his crew had to overcome. Overall 11/10 rating in quality of work, customer service, pricing, everything. Highly recommend to anyone."
"Eric and his crew at UCC did an amazing paint job! The quality is outstanding, the lines are clean, and everything looks flawless. They were professional, on time, and left everything neat. I absolutely love the results and highly recommend them!"
"I had a good experience working with Jeff, Tomy and the UCC team for my bathroom remodeling project. From start to finish, their attention to detail were great. They took the time to understand what I wanted and provided valuable insights to enhance the functionality of the space while sticking to our initial budget. Even thought the project took longer than expected they were able to deliver the project with great quality. We are very happy with the results. I appreciate their customer service and their help. I would highly recommend them."
Home additions questions, answered
How much does a home addition cost in Newark, NJ?
Do you handle the permits, zoning, and inspections for the addition?
What kinds of home additions do you build?
How long does a home addition take to build?
Can we stay in our home during the addition?
Are you licensed and insured for home additions in NJ?
Which areas do you build home additions in?
How do we get started on a home addition?
Related services
Planning a bigger project? See all our residential services.
Ready to add on?
Get a free, no-pressure estimate for your home addition from a licensed New Jersey general contractor. Licensed, insured, and bonded, rated 5.0 stars, with financing available through Wisetack.