New Jersey Design-Build General Contractor

Where Professional Construction Meets Thoughtful Design

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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.

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Interior Architectural Restoration

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

Interior Renovation Project - Whole House

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.

Local Contractor, Architect, and Interior Designer
kitchen Design & Project Planning

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

luxury kitchen design build services

Book Your Complimentary Project Consultation

Fill out the form below to have a team member reach out about your remodeling/reno project.

We are located in Westfield, NJ, and our services are limited to surrounding townships in and near Union County, NJ.

We Create Amazing Spaces

Check Out Our Local Remodeling Services

Kitchen Remodeling & Renovations

Bathroom Remodeling & Renovations

Basement Remodeling/Finishing

Historic Restorations

Interior & Exterior Renovations

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