A Trusted Remodeling Company in Westfield, NJ

SEI Construction, Inc.

An award-winning residential remodeling company offering whole-house design-build services.

Before After

We Are Not Your Average

Union County, NJ Remodeling Company

Established in 1987, our team has transformed thousands of homes in Union County, NJ, and beyond. With our one-stop approach to remodeling, you receive an expert and detail-oriented team of interior designers, carpenters, and specialty trades professionals, quality craftsmanship, and innovative design-build services centered around your inspirations and customized for your needs. 

We manage all facets of your remodeling project, so you do
not have to.

We Create Amazing Spaces

Check Out Our Local Remodeling Services

Whether you want to restore a historic home, improve the footprint of a room, make it modern, have a space your whole family can gather in, or have one designed specifically for your four-legged friend, our design-build possibilities are endless. 

Kitchen Remodeling

Bathroom Remodeling

Home Additions

Renovation Services

Historic Restorations

SEI Construction, Inc. Client Perks

The Benefits of Our Home Remodeling Company

A Dedicated Team of Remodeling Experts

Our design and construction teams collaborate at each stage of your project to provide your remodel with the upfront planning and foresight you expect.  

Quality and Dependability You Can Count On

By embarking on a remodeling project, you are investing in your home’s value and your family’s future. We value your investment and use quality materials, products, and skilled trade professionals. With 30+ years in the business, you can rest assured we will be there for you today, tomorrow, and down the road.

A Dust Prevention System to Keep Your Home Clean

Pesky dust from your remodeling project floating around your home can cause a mess on your furniture, flooring, asthma attacks, and a flare-up of allergies. We improve your remodeling experience and keep your home clean with a dust management system that captures and eliminates remodeling dust.

Satisfaction Guarantee
We Deliver the Result You Want. Period.

We Are Business Who Cares, And it Shows


People Say the Nicest Things

kitchen remodel review - sei construction inc

Kitchen Remodel

“I researched a ton of different kitchen remodeling Contractors in Scotch Plains, NJ. None really approached the project in a way that worked for me – until I met SEI Construction, Inc. There are many reasons why I enjoyed working with SEI, their integrity and attention to detail are just a couple. Not to mention their craftsmanship and trusting crew who make sure they finish on time.”

front foyer addition review
Mary Jo

Front Foyer Addition

“I wanted to add an addition to my Fanwood, NJ home. I was troubled to find someone who would work with my idea and budget, so I came across SEI Construction, Inc., during a search. Calling them turned out to be the right move. I am very happy with the result. Everyone on the team was personable and professional, making the experience enjoyable. I will be reaching out to them for my next project.”

home addition review - sei construction inc

Kitchen Reno & Home Addition

“We were extremely happy with our experience in dealing with SEI. They do more than a build, they guide you through the entire renovation process. Mike and his crew listen to your ideas and help you devise a plan to turn your house into a home. SEI’s attention to detail and the quality of their work are excellent. We used SEI for our kitchen renovation and were so happy with the results that we used them again when we did an addition to the house.”