Tile setter laying large-format floor tile inside a commercial interior under construction

Commercial General Contractor · Brooklyn, NY

Commercial interiors, built to schedule.

NexBuild delivers medical, office and retail fit-outs across New York City, managing every trade, submittal and inspection between the drawings and the keys.

Request a proposal See selected work

Service area: All five boroughs, Westchester & North Jersey
Sectors: Medical · Office · Retail
Scope: Pre-construction through DOB closeout

A general contractor that treats procurement and permitting as the schedule, not paperwork around it.

Most commercial interiors don't slip during construction. They slip while waiting on hardware that was ordered late, a countertop template that was never scheduled, or an inspection that nobody filed for. NexBuild runs those gates as hard as the trades.

We take drawings and field conditions and turn them into purchase-ready scopes, coordinate owners, architects, engineers and subcontractors in writing, and surface schedule risk early enough to do something about it.

How we work

What we build

Occupied, regulated, and on a clock.

Interior renovations and tenant fit-outs where the space has to open on a date, pass inspection the first time, and keep the neighbors happy while it's being built.

Bright, finished medical waiting room with reception counter, wood doors and seating

Medical & clinical

Infusion centers, exam suites and outpatient clinics

Ground-floor and multi-tenant clinics with accessible entries, automatic operators, solid-surface casework, mechanical and energy-code closeout, and air-balance documentation ready for sign-off.

Modern open-plan office with exposed ceiling, linear lighting and wood-plank flooring

Office & tenant improvements

Workplace renovations in occupied buildings

Phased work, after-hours shutdowns, building-management coordination and clean turnover.

Commercial lobby with floor-to-ceiling glazing and wood-veneer wall panels

Retail & lobbies

Storefronts, lobbies and customer-facing interiors

Millwork, feature walls, lighting and finishes coordinated with your designer's intent.

How we work

Four gates between the drawings and the keys.

Every project runs the same way, whether it's a 1,200 sq ft suite or a full-floor clinic. The discipline is in what gets locked before anyone mobilizes.

Start a conversation

Pre-construction

We walk the space, reconcile the drawings against field conditions, and return a scope-by-scope proposal that separates committed work from allowances, so you know exactly what's priced and what's still a decision.
- Site survey
- Scope & allowance definition
- Schedule with long-lead flags
- Alternates for review
Procurement

Doors and hardware, operators, lighting and controls, solid-surface tops, millwork. We verify quantities against the schedule, confirm lead times in writing, and release purchase orders with fixed delivery dates before the trade needs them.
- Vendor benchmarking
- Submittals & approvals
- Fixed-date purchase orders
- Template & delivery tracking
Construction & coordination

One point of accountability across subcontractors, building management, the design team and the owner. Field questions become written RFIs. Changes become documented change orders before the work happens, not after.
- Trade sequencing
- Owner & architect coordination
- Written RFIs and change orders
- Weekly look-ahead
Closeout & turnover

Inspections scheduled early, documentation assembled as the work is built, punch list run to zero. You get a space that passes, and a closeout package you can hand to your facilities team.
- DOB & special inspections
- Mechanical & energy-code sign-off
- Air-balance reports
- Punch & O&M package

Contractor at a new aluminum-and-glass storefront entry inside a renovated commercial space — How we think about risk on every job.

Selected work

Recent and current projects.

Client names are shared on request.

Finished clinic reception desk with stone-look counter, navy wainscot and wood slat wall

Medical · Full interior renovation

Outpatient infusion clinic, Upper East Side

Ground-floor clinic renovation on Third Avenue: new hollow-metal entry with automatic operator, lighting and controls package with engineer-approved alternates, solid-surface reception and mixing-room casework, closet and mechanical-room reconfiguration, and full DOB, mechanical and energy-code closeout.

Role: General contractor
Location: Manhattan, NY
Status: Closeout

Medical suite waiting area with wood doors and upholstered seating

Medical · Suite reconfiguration

Medical suite entry relocation, West Harrison

Re-planning an occupied medical suite with a relocated entry, revised partitions and new variable-air-volume terminals matched to the existing building controls. Pre-construction includes mechanical verification, supplier availability and schedule confirmation before any demolition.

Role: General contractor
Location: Westchester County, NY
Status: Pre-construction

Floor tile installation underway in a commercial interior

Multi-site · Facility repairs

Occupied-clinic repairs across New Jersey

Flooring replacement, lighting repairs and after-hours access coordination across operating clinic locations, sequenced so patient schedules were never interrupted.

Role: Contractor of record
Location: Morristown & Princeton, NJ
Status: Ongoing

Why owners and architects work with us

Fewer surprises. Written down.

Schedule-first procurement

We don't take a supplier's lead time on faith. Quantities get checked against the door and fixture schedules, delivery dates go into the purchase order, and anything that threatens the turnover date gets an approved alternate on the table before it becomes a delay.

Complete packages, not low numbers

A cheap quote that's missing the closers, the operator header or the template visit isn't cheap. We bid and buy the whole installed scope.

Early, honest risk calls

If a delivery is at risk, you hear it from us first, with options, not after the date has passed.

Clean closeout

Inspection documents, balance reports and sign-offs are collected as the work goes in, so the end of the job is a walk-through, not a scramble.

One accountable contact

Owners, designers, engineers, building management and vendors all route through one coordinator who keeps the written record straight.

Request a proposal

Tell us about the space.

Send drawings if you have them, or just the address and what needs to happen. We'll come back with questions, a walk-through date, and a straight answer on whether your timeline is realistic.

Email: ergi@nexbuildcorp.com
Office: Brooklyn, New York
Serving: New York City, Westchester County and Northern New Jersey