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Custom Bathroom Remodels & Renovations in Union County, NJ
SEI Construction Inc. proudly provides bathroom remodeling and renovation services throughout Central New Jersey, including:
Westfield, NJ
Scotch Plains, NJ
Fanwood, NJ
Short Hills, NJ
Chatham, NJ
Summit, NJ
Cranford, NJ
New Providence, NJ
& Neighboring NJ communities.
For nearly 40 years, our Westfield-based team of specialty trade professionals, designers, and bathroom remodeling contractors has transformed outdated, deteriorated, and dysfunctional bathrooms into stylish, functional spaces. We use durable, high-quality materials and trusted products to bring your ideas from concept to completion.
Our Bathroom Renovation/Remodeling Services
From Classic to Contemporary — We’ve Perfected Bathroom Remodels for Nearly 40 Years
Primary Bathroom Remodels/Renovations
Elevate your home with a custom primary bathroom designed for relaxation, beauty, and everyday functionality – complete with spa-inspired details and lasting craftsmanship.
Kids' Bathroom Renovations & Updates
Create a safe, durable, and easy-to-clean kids’ bathroom that grows with your family, blending smart design with playful, practical finishes.
Powder Room Updates & Redesigns
Transform your powder room into a statement space with bold design touches, efficient storage, and elegant fixtures that leave a lasting impression.
Bathroom Additions
Enhance your home’s comfort with a bathroom addition that blends seamlessly with your home’s exterior and is designed around your style, your space, and the way your family truly lives.
Basement Bathroom Additions/Renovations
Add comfort and convenience to your lower level with a basement bathroom built for real-life use – expertly designed for moisture control, lighting, and layout.
Above Garage Bathroom Additions/Renovations
Turn unused space into livable luxury with an above-garage bathroom designed for guests, in-laws, or private suites – seamlessly integrated with your home’s design.
Local Bathroom Design & Construction Services
Put our vast experience and detailed process to work for you and discover firsthand why over three decades of clients have made us their go-to bathroom remodeler.
Share your ideas, inspirations, and everything you want your space to become. Our team will create a one-of-a-kind bathroom layout that is functional, beautifully configured, maximizes efficiency, and is custom-built and designed for your remodeling budget and vision.
Here are a few different custom bathroom types you’ll find in our project gallery:
Traditional Bathroom Design & Build
Transitional Bathroom Design & Build
Modern Bathroom Design & Build
Bathroom Updates & Upgrades
Bathroom Additions & Extensions
Basement Bathrooms
Bathroom Remodel - Before & After
See how we transformed this Berkeley Heights, New Jersey primary bathroom into a sophisticated retreat featuring a freestanding soaking tub, custom steel-framed shower enclosure, and timeless tilework.
Project Description:
This Berkeley Heights, NJ bathroom remodel beautifully combines industrial elegance with modern comfort.
Our team completely reimagined the space to highlight clean lines, open sightlines, and a spa-like atmosphere. The freestanding bathtub was positioned beneath a natural light–filled window to create a calming focal point, while the new walk-in shower features a striking black grid-style glass enclosure – adding definition and visual contrast to the soft white subway tile walls.
Inside the shower, built-in niches and a bench provide everyday convenience without compromising style. Matte black fixtures and handcrafted tilework unify the space with balance and durability.
The result: a warm, modern bathroom designed for relaxation and everyday luxury – proving that even classic materials can feel fresh, bold, and timeless when thoughtfully reimagined.
Planning Your Bathroom Remodel - Frequently Asked Questions (FAQs)
Discover answers to frequently asked questions and get insight from our team of expert professionals.
How much does a bathroom remodeling project cost?
You can approach your bathroom remodel in two ways: the seller route or the forever home route.
If selling: Start by researching what updated bathrooms in your area sold for. Choose neutral finishes and a modest budget to maximize ROI. Refer to The Journal of Light Construction’s Cost vs. Value Guide for recommended spending on small to mid-range NJ bathroom remodels.
If staying: Create a wish list of wants and needs. The best remodels balance efficiency for daily routines with personalized style. Use the Cost vs. Value guide to compare small, mid-range, or major remodels and their price ranges.
Keep in mind, materials and product choices impact your budget. Since hidden issues can arise during demolition, set aside 10–20% of your budget for unforeseen expenses. If unused, these funds can go toward upgrades.
What is universal bathroom design?
Universal design is the term used to describe a bathroom design that grows with you as you age, hence aging-in-place.
A modern approach to grab bars would be a step-in tub or curbless shower (a walk-in shower). Both alternatives come in various stylish options (more below) that don’t give off the cold and hospital-like look most people associate with universal design.
How long does a bathroom remodel take in New Jersey?
Most bathroom remodels take 3 to 6 weeks from demolition to completion, depending on size, scope, and custom material selections.
Full remodels involving layout changes, plumbing updates, or custom tilework may extend beyond six weeks.
Our team always provides a detailed project timeline before construction begins so you can plan with confidence.
Do I need a permit to remodel my bathroom?
Yes – most bathroom remodels in Union County and surrounding New Jersey towns require permits for plumbing, electrical, or structural changes.
SEI Construction handles all permit applications and inspections on your behalf to ensure compliance and a seamless approval process.
What bathroom upgrades add the most value to a home?
Timeless upgrades such as walk-in showers, double vanities, quartz countertops, and new tile flooring consistently offer the best return on investment. Homebuyers also appreciate features like improved lighting, efficient fixtures, and spa-inspired touches that make everyday routines feel elevated.
What’s the difference between a bathroom renovation and a bathroom remodel?
A bathroom renovation updates surfaces and finishes – like tile, paint, and fixtures – while keeping the existing layout intact.
A bathroom remodel involves reconfiguring the space, moving plumbing or walls, and creating a new layout designed around how you actually use the bathroom.
Is it possible to add a bathroom to my home, or should I just remodel?
It’s up to you. However, adding a new bathroom is one of the most valuable home improvements you can make.
We specialize in bathroom additions, including basement, garage, or primary suite expansions, designed to integrate seamlessly with your existing structure.
When is the best time of year to start a bathroom remodel?
Bathroom remodels can happen year-round, but many homeowners prefer to start in late winter or early spring to finish before summer travel or hosting season.
Booking early ensures better access to preferred materials and scheduling availability.
Top-Rated Bathroom Remodeling 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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