New Jersey Bathroom Design, Remodeling & Renovation Services

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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Westfield-based team of specialty trade professionals, designers, and bathroom remodeling contractors has transformed outdated, deteriorated, and dysfunctional bathrooms into stylish, functional spaces.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.

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primary bathroom design

Let New Jersey’s Best Remodelers Transform Your Bathroom

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

framed industrial shower

Schedule Your Free Remodeling Consultation & Project Quote

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.

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