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Professional Interior Renovation Services in Nassau County

An interior renovation in Nassau County can completely reimagine your living or working space - from gut renovations that strip a center-hall colonial to the studs to strategic updates that modernize layouts, improve flow, and enhance natural light. Lion Construction Management manages full-scope interior renovations across Nassau County, coordinating demolition, structural work, mechanical systems, finishes, and millwork into a seamless build that delivers your vision on time and on budget.

Nassau County's affluent communities on Long Island's Gold Coast and South Shore demand the highest caliber of construction and renovation work. From historic estates in Great Neck and Manhasset to contemporary homes in Garden City and waterfront properties in Long Beach, Lion Construction Management brings NYC-level expertise to Long Island's most discerning homeowners.

Before & After

A recent Lion stairwell renovation: new oak treads, custom iron balusters and a refinished ceiling dome.

Stairwell after renovation: oak treads, custom iron balusters and a white coffered ceiling dome
Stairwell & RailingOak treads, custom iron balusters, refinished ceiling dome

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Staircase Renovation Gallery

Staircase before renovation with blue carpet and dated iron railing
Iron baluster and oak handrail installation in progress
Stairwell with coffered ceiling detail and iron balusters
Oak staircase with carpet runner viewed from upper landing

Photos from recent Lion Construction staircase and woodwork projects across NYC and Long Island.

What’s Included

Complete interior demolition, structural assessment, and rebuild - transforming outdated spaces into modern, open-concept living environments.
Wall removal, room additions, and floor plan redesign to improve flow, maximize natural light, and create spaces that match how you actually live.
Complete upgrades to electrical, plumbing, and HVAC systems to support modern living - including panel upgrades, new supply lines, and ductwork.
Crown molding, wainscoting, built-in shelving, custom closets, and architectural woodwork that add character and value to your space.
Hardwood installation or refinishing, tile, stone, specialty finishes like Venetian plaster, and premium paint throughout.
Single point of contact managing all trades, inspections, building management, and permits so you don't have to.

How We Deliver Interior Renovation in Nassau County

1

Scope & Design Review

We review architectural plans, walk the existing space, identify challenges, and build a comprehensive scope of work with detailed budget and timeline.

2

Permitting & Pre-Construction

All DOB filings, building management approvals, and board submissions are handled. Materials are specified and ordered with lead times mapped to the schedule.

3

Construction & Coordination

Demolition through rough-in through finish - every trade is sequenced, every inspection is scheduled, and progress is reported to you regularly.

4

Punch List & Handover

Final inspections, punch list resolution, cleaning, and a detailed walkthrough ensure your renovated space is delivered exactly as promised.

Interior Renovation in Nassau County, Answered

A full gut renovation in Nassau County typically takes 4–8 months depending on the size and complexity of the project. Local village and town permits are typically faster than NYC DOB, but homeowner association review may add time. We build detailed schedules during pre-construction and provide regular progress updates throughout.

A renovation typically refers to restoring or updating an existing space while maintaining its general layout, while a remodel involves changing the structure or layout - removing walls, adding rooms, or reconfiguring the floor plan. Lion Construction Management handles both, from cosmetic refreshes to full gut renovations.

For gut renovations, we generally recommend temporarily relocating since the work involves demolition, dust, noise, and disconnected utilities. For partial renovations, many clients stay in their homes while we phase the work. We'll advise on the best approach for your specific project.

Lion Construction Management manages all permitting - from DOB filings and inspections to local village and town building department coordination across Nassau County municipalities. We know the local requirements inside and out, which prevents delays and ensures full compliance.

Interior Renovation Near You

Lion Construction Management provides interior renovation services throughout Nassau County, including Garden City, Great Neck, Manhasset, Roslyn, Port Washington, Oyster Bay, Syosset, Jericho, Woodbury, Massapequa, Merrick, Bellmore, Freeport, Rockville Centre, Hewlett, Lawrence, Cedarhurst, Long Beach. Whether you're in a single-family estates or a new-construction property, our team delivers the same exceptional quality and attention to detail.

Professional interior renovation services in Nassau County by Lion Construction Management. Serving Garden City, Great Neck, Manhasset, Roslyn, Port Washington and all of Nassau County. Call (917) 575-1306. Lion Construction Management is a licensed, insured general contractor rated 4.9 stars on Google. Call (917) 575-1306 for a free estimate.