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Licensed New Jersey General Contractor Delivering Complete Design-Build Remodeling Solutions
For nearly 40 years, SEI Construction, Inc. has been a trusted licensed New Jersey general contractor specializing in design-build remodeling and home additions across Union County and Central New Jersey.
Unlike traditional contractors who only manage construction, we guide you through every phase – planning, design, permitting, and building – under one coordinated process.
Why Homeowners Trust SEI Construction as Their NJ General Contractor
A Design-Build Approach to General Contracting
Most “general contractors” simply execute drawings created by others.
At SEI Construction, we do more – we design, plan, and build.
Our team of trusted and vetted designers, architects, and specialty trade professionals collaborate from day one to ensure your project stays on budget, on schedule, and on vision.
Our advantage: fewer hand-offs, less confusion, and complete accountability from start to finish.
Quality Construction That Honors Your Home’s Architecture
Every addition, kitchen, and bathroom we build is custom-crafted for the home it’s in. We blend modern design with architectural integrity - bringing together structure, style, and details that complement your home’s era and neighborhood.
Let a Licensed New Jersey General Contractor Transform Your Home
We coordinate engineers, inspectors, and specialty trades - from electricians to masons - under a unified project plan.
This eliminates scheduling delays, miscommunication, and mid-project redesigns.
Experience a Better Way to Improve Your Home: The SEI Construction Way
At SEI Construction Inc., We Go Beyond the Role of a Typical General Contractor.
What truly sets us apart is our trusted network of skilled carpenters, specialty trades, architects, and interior designers – professionals we’ve collaborated with for years and proudly stand behind.
This cohesive design-build partnership ensures that every element of your project – structural, architectural, and aesthetic – comes together seamlessly.
The result is consistent quality, clear communication, and a remodeling experience that stays on schedule and within budget.
Start Your Remodel with a Free Consultation.
During that consultation, we take time to understand your goals, frustrations, and lifestyle needs.
From there, we create a customized proposal and timeline that outlines how your vision will take shape.
Whether you already have design plans or prefer to work with one of our trusted architects or interior designers, our collaborative approach ensures that every detail – from layouts and finishes to permits and inspections – is thoughtfully coordinated under one roof.
Once construction begins, your dedicated project manager oversees every step with precision and transparency, ensuring a clean job site, clear updates, and craftsmanship that meets SEI’s high standards.
When your project is complete, we conduct a thorough walkthrough and provide ongoing support to ensure lasting satisfaction.
Since 1987, SEI Construction Has Built a Reputation for Integrity, Professionalism, and Craftsmanship Throughout Union County and Central New Jersey.
We are proud to be recognized by the National Association of the Remodeling Industry (NARI) and the Better Business Bureau (BBB), and our work has been featured across platforms like Houzz, Google, and Facebook for design excellence and client satisfaction.
When you choose SEI, you’re choosing a licensed New Jersey contractor with nearly four decades of proven experience, long-standing community ties, and a commitment to quality that stands the test of time.
Areas We Serve as a Trusted New Jersey General Contractor
As a family-owned and locally operated business based in Westfield, SEI Construction has proudly served homeowners across Union County, Essex County, and Morris County for nearly four decades.
Our deep roots in Central New Jersey mean we understand the character of its homes – from the timeless Colonials and Cape Cods of Westfield, Scotch Plains, and Fanwood to the elegant estates of Summit, Short Hills, and Chatham.
Because we’ve been remodeling homes here since 1987, our team is intimately familiar with local architecture, neighborhood styles, zoning laws, and permit requirements. This regional expertise allows us to manage every project with precision and efficiency – whether it’s a custom kitchen renovation in Cranford, a home addition in New Providence, or a full interior remodel in Plainfield.
Our extensive knowledge of North and Central New Jersey homes makes SEI Construction a one-stop design-build contractor for projects of any size.
From concept to completion, we bring craftsmanship, clear communication, and lasting value to every home we touch.
General Contractor - Frequently Asked Questions (FAQs)
Discover answers to frequently asked questions and get insight from our team of expert professionals.
What does SEI Construction handle as a New Jersey general contractor?
As a full-service design-build general contractor, SEI Construction manages every phase of your home remodeling project – from concept and planning to permitting, construction, and final inspection.
Our in-house team and trusted trade network handle kitchen and bathroom remodels, home additions, basement renovations, and exterior upgrades, ensuring seamless coordination and superior results.
What makes SEI Construction different from other general contractors in New Jersey?
Unlike traditional contractors who simply oversee construction, SEI Construction takes a design-build approach, integrating architecture, design, and craftsmanship under one roof. This means one team, one contract, and one shared vision – resulting in better communication, fewer delays, and consistent quality.
Our clients appreciate that we’ve been serving Union County and Central New Jersey homeowners since 1987, building trust that lasts long after the project is complete.
Do I need permits for my remodeling project in Union County, NJ?
Most structural, electrical, or plumbing renovations in New Jersey require permits, but don’t worry – our team handles the entire permitting process for you. With decades of experience working in Westfield, Scotch Plains, Fanwood, Summit, Cranford, and surrounding townships, we know exactly what each municipality requires, helping you avoid delays and ensuring full code compliance.
What should I expect during my initial consultation with SEI Construction?
Your remodeling journey starts with a complimentary consultation, where we discuss your vision, design ideas, and project goals. Whether in person or by phone, this meeting helps us understand how you want to live in your space so we can tailor your renovation to fit your lifestyle, budget, and timeline.
How long does a typical home remodeling project take?
Project timelines vary depending on complexity and scope. A kitchen or bathroom remodel may take several weeks, while large-scale additions or full-home renovations can span a few months. Because SEI manages everything in-house, our team maintains a clear schedule and open communication throughout to keep your project on track.
Top-Rated General Contractor in New Jersey
Posted on Jackie MetzgerTrustindex verifies that the original source of the review is Google. This was the third project and the most extensive project that we hired SEI for. We felt very comfortable working with all his crew, they were easy to communicate with and always kept us up to date on the progress. I especially like Mike's detailed estimates. They are easy to read and you know exactly what he is going to do and when he needs payment for each step. You can depend on Mike to check in on the progress at each stage and if you have any issues he addresses them immediately and to your satisfaction. The quality of their work is terrific and the job is not complete until the last detail has been addressed and the final inspection is in your hands and everyone is happy with the result.Posted on Noreen CroteauTrustindex verifies that the original source of the review is Google. We had SEI Construction do a lot of renovations on our home. Mike and his crew especially Izzy, worked as if it was their home. From the estimate and meeting with Mike to explain our vision, EVERYTHING was done as promised if not better then we expected! Plus they work clean!!! Experts in their craft!! I cannot rave enough!Posted on Jessica FriedmanTrustindex verifies that the original source of the review is Google. I'm an interior designer in the area. I've used Mike and his team on countless projects over the past 10 years. We just completed another a few weeks ago. His team is always wonderful, trustworthy and meticulous. I throughly enjoy working with them and look forward to future projects. I can't believe I haven't written a review sooner!Posted on edward shannonTrustindex verifies that the original source of the review is Google. Posted on Victor CenciTrustindex verifies that the original source of the review is Google. 2 years ago, SEI redid our outside deck, remodeled a downstairs bathroom and installed composite railing in the front of our house. The team was professional, courteous and responsive, and the fit / finish was excellent. Just this month, I called them back to replace a broken cap on the composite railing (winter weather casualty) and to screw down some deck boards that were in danger of coming up. The team came back and did the work at no charge and found more missing / broken screws than I did. Very pleased with their response and happy to recommend a local, quality contractor.Posted on Aaron BakerTrustindex verifies that the original source of the review is Google. SEI construction added a net-new master suite, remodeled 1 full bath, created a net-new full bath in the basement, and redid all HVAC duct work, roofing, and siding. Our contractor selection criteria was quality and project management. We needed good communication and a central point of contact for questions, and SEI checked those boxes at a very reasonable price. The owner Mike Rizzo was a great communicator and very relatable. He always made technical topics Easy to understand. He’s got young kids and was great to our kids. Always patient and accommodating. Our project lead was Tyler. He was friendly, funny, and an expert carpenter. There was quality and precision in everything he built. He was really nice to my 6 and 8 daughters every day and even got my youngest a birthday present. So thoughtful! He also let me bang a few nails so I felt part of the build process. I’m thrilled with the work they did. Very content with the price we paid, and so grateful for their attention to every detail, which makes all the difference in the world. I would recommend SEI to anyone looking to remodel or add new space.Posted on Laura KastTrustindex verifies that the original source of the review is Google. SEI is the best! Smart, thoughtful, fast and great quality work! We've used other contractors before and SEI is far and away better than anyone else we've worked with. Great attention to detail. I can't recommend them enough!Posted on Jeff ThompsonTrustindex verifies that the original source of the review is Google. We hired SEI through a friends referral for a bathroom remodel. They are our number one recommendation for a few reasons: 1) attention to detail, 2) friendliness and trust of crew, and 3) responsiveness. They truly want the end result to be great and you can always trust who they will bring in your home. After our initial bathroom remodel, they did our deck, and are going to help on a commercial venture. I can't recommend them enough.Posted on Linda HTrustindex verifies that the original source of the review is Google. We cannot recommend SEI Construction more highly. As serial renovators, my husband and I have worked with many contractors and the quality of craft, attention to detail, pace, and the absolutely delightful team of employees that SEI offers is unmatched. SEI is professional and qualified in every sense of the word and we cannot be more pleased with our final results!Posted on Mike RileyTrustindex verifies that the original source of the review is Google. We hired Mike and his team to put on an addition to our home in Clark. Although we had a smaller budget than most of Mike’s clients, Mike worked within our budget and showed he cared the same for us as the rest of his clients. Our situation was unique because my wife was 9 months pregnant when the work started. The day our daughter was born was the day the kitchen was demoed. Mike and his team did a great job doing whatever they could so the work would not affect our baby or our 4 year old son. They worked hard to keep the rest of the house clean and dust free. As in any project, there were situations that came up that had to be dealt with. Mike worked with us to come to the best resolutions possible. We highly appreciate Mike and Tyler’s craftsmanship, professionalism, trustworthiness, but most importantly their respect for our family. We would like to thank Mike, Tyler, Rudy, Oscar, Izzi, and Nick for doing great work and for caring about our family. Our home is now complete. Mike and Nicole Riley
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