Licensed General Contractor in New Jersey
General Contractor Services in Union, Essex, and Morris County, NJ
SEI Construction, Inc. is a licensed general contractor based in Westfield, NJ serving homeowners throughout Central New Jersey and beyond since 1987. Kitchens, bathrooms, home additions, basement finishing, historic restoration, and full-home renovations, all planned, managed, and built under one team.
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About SEI Construction As Your General Contractor
What does it mean to hire SEI Construction as your general contractor in New Jersey?
When you hire a general contractor, you are not just hiring someone to swing a hammer. You are hiring a single point of accountability for your entire project: design, permitting, trade coordination, scheduling, quality control, and communication, from the first conversation through the final inspection.
SEI Construction, Inc. has operated as a licensed general contractor in New Jersey since 1987. Based at 110 Myrtle Avenue in Westfield, we serve homeowners throughout Union, Essex, and Morris County.
Every project we take on, whether it is a kitchen remodel, a bathroom renovation, a home addition, or a full home renovation, is managed under one team with one dedicated project manager and one written proposal covering every phase from start to finish.
Our structured design build process is built specifically to eliminate the three things that make remodeling projects go wrong: poor planning, unclear timelines, and lack of communication.
General contractor services for Union, Essex, and Morris County homeowners
What we build as your general contractor
Every scope of residential remodeling and construction, planned and managed under one team with one point of contact throughout.
Kitchen Contractor
From layout reconfiguration and custom cabinetry to countertop upgrades and full kitchen redesigns. We manage design, permitting, structural work, plumbing, electrical, and finishes under one coordinated project team.
Bathroom Contractor
Primary suites, powder rooms, guest bathrooms, walk-in showers, and bathroom additions. Every project includes 3D design renderings, full permitting, and a dedicated project manager from start to final walkthrough.
Home additions and extension Contractor
Room additions, second story additions, kitchen extensions, sunrooms, above-garage additions, and bump-outs. We handle structural engineering, township permitting, and full construction management so you have one accountable team throughout.
Basement remodeling and finishing Contractor
Full basement finishing, home theaters, home offices, guest suites, entertainment areas, and basement bathrooms. We manage all framing, electrical, plumbing, HVAC, and finishes with permits handled through your local township.
Historic restoration and preservation Contractor
Specialized restoration work for Union County’s older homes: Victorians, Tudors, Colonials, and historically designated properties. We modernize function while preserving the architectural details and period character that make these homes valuable.
Interior and exterior renovation Contractor
Full interior renovations, whole-home remodels, exterior updates, siding, roofing, windows, and structural improvements. One general contractor managing every trade across your entire project from concept through completion.
The design-build difference
Why homeowners choose a design-build general contractor over a traditional contractor
Most contractors execute drawings and plans created by others. SEI Construction designs, plans, and builds your project under one roof, eliminating the gaps, delays, and miscommunication that happen when design and construction are handled by separate companies.
One point of contact throughout
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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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.
How SEI Construction manages your project from start to finish
A structured, three-phase process designed to eliminate the planning failures, communication breakdowns, and budget surprises that make remodeling stressful.
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.
Phase 1
Start Your Remodel with a Free Consultation, Assessment, and Custom Proposal
We visit your home, walk the project area, and sit down with you to understand your goals, timeline, and budget. We assess structural and mechanical conditions, develop a preliminary design concept, and prepare a detailed written proposal covering full scope, itemized pricing, and a phase-by-phase timeline before anything is signed.
You have a clear, written plan before committing to anything
Phase 2
Design finalization, permitting, and material selections
We finalize your design with 3D renderings where applicable, guide you through material and finish selections, and submit all permit applications to your local township building department. Construction does not begin until permits are approved and you have signed off on every design decision.
Permits approved, design finalized, materials selected before a single wall is touched
Phase 3
Managed construction, inspections, and final walkthrough
Your dedicated project manager oversees every trade, coordinates all inspection scheduling, maintains daily site cleanliness using our BuildClean dust control system, and provides regular project updates. After the final township inspection passes, we conduct a thorough walkthrough with you to confirm every detail meets the agreed standard.
A finished, inspected, permitted project that matches your design exactly
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.
Top-Rated General Contractor in New Jersey
General Contractor - Frequently Asked Questions (FAQs)
Discover answers to frequently asked questions and get insight from our team of expert professionals.
What does a general contractor do?
A general contractor is responsible for managing every aspect of a construction or remodeling project from start to finish. This includes hiring and scheduling specialty trades such as plumbers, electricians, and carpenters; obtaining required permits from the local township building department; coordinating inspections; maintaining the job site; communicating progress to the homeowner; and ensuring the finished project meets the agreed scope, timeline, and budget. A general contractor is your single point of accountability for the entire project.
What is a design-build contractor and how is it different from a traditional general contractor?
A traditional general contractor executes plans and drawings created by a separate architect or designer. A design-build contractor handles both design and construction under one roof. The design-build model eliminates the gap between what is designed and what can be built, reduces the number of hand-offs and communication breakdowns, and gives you a single point of accountability for both the design decisions and the construction outcome. SEI Construction operates as a design-build general contractor on every project.
Is SEI Construction licensed as a general contractor in New Jersey?
Yes. SEI Construction, Inc. holds all required New Jersey Home Improvement Contractor licenses and carries full general liability insurance and workers compensation coverage. We are also BBB A+ accredited and a Remodeling Magazine Big50 award winner. All our projects are properly permitted and inspected through the applicable township building departments throughout Union, Essex, and Morris County.
How do I find a good general contractor near me in Union County, NJ?
When evaluating a general contractor in Central NJ, look for:
- a verifiable NJ Home Improvement Contractor license
- current liability insurance and workers compensation coverage
- local references from projects completed in your specific area
- clear written proposals with itemized pricing before any work begins
- a dedicated project manager assigned to your project
- verified reviews on Google or Houzz from homeowners with similar project types.
Be cautious of any contractor who cannot produce licensing documentation, requests large upfront payments, or declines to provide a written proposal before starting work.
What types of projects does SEI Construction handle as a general contractor?
SEI Construction handles kitchen remodeling and renovation, bathroom remodeling and renovation, home additions of all types, basement remodeling and finishing, historic restoration and preservation, interior and exterior renovations, and full-home renovation projects throughout Union, Essex, and Morris County. Every project type is managed under the same structured design-build process with a dedicated project manager and a detailed written proposal before work begins.
What areas does SEI Construction serve as a general contractor in New Jersey?
SEI Construction serves homeowners throughout Union County including Westfield, Scotch Plains, Fanwood, Cranford, Summit, and New Providence; Essex County including Short Hills; and Morris County including Chatham and New Providence. Call us at 908-789-9151 to confirm service availability in your specific area.
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.
Ready to Plan Your Project with our general contractor services?
Fill out the form below to have a team member reach out about your remodeling/reno project.
What Happens Next
Step 1
Our team reviews your submission and reaches out within 72 hours to confirm a time that works for you.
Step 2
You have a short introductory call to walk through the project, your timeline, and any questions you have.
Step 3
We schedule an in-home visit and put together a detailed, transparent quote at no charge.
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