NEW YORK CITY BUILDERS
Building trust through quality craftsmanship, professional project management, transparent communication, and dependable construction solutions throughout New York City.
Licensed & Insured NYC General Contractor · Free Project Feasibility Assessment
At Cornerstone Construction Group, we believe successful construction projects are built on trust, communication, and attention to detail. Our team delivers commercial construction, residential building, renovations, and design-build solutions with a commitment to excellence from start to finish.

From initial concept planning to handover, Cornerstone Construction Group delivers precision-built commercial and residential developments grounded in uncompromising standards, transparent timelines, and dedicated project supervision.
We believe honesty and transparency build lasting client relationships.
Every project is completed with careful attention to detail and professional workmanship.
We stand behind our work and maintain high standards throughout every phase of construction.
Our goal is to exceed expectations while delivering projects safely and efficiently.
This proven process helps ensure projects stay organized, efficient, and aligned with client expectations.
Initial discovery session to assess scope, site conditions, zoning requirements, and timeline parameters.
Architectural blueprints, material specifications, permit acquisition, and fixed-cost milestone scheduling.
Hands-on site execution with rigorous safety compliance, proactive project management, and regular progress updates.
Detailed punch-list review, quality sign-off, comprehensive documentation package, and ongoing warranty handover.

Cornerstone Construction Group proudly serves clients throughout Manhattan, Brooklyn, Queens, the Bronx, and Staten Island. Our experience spans commercial construction, residential building, renovations, restoration services, and design-build projects across the New York metropolitan area.
Fully Licensed & Insured in NYC • DOB Expediting & Code Compliance Guaranteed
Cornerstone delivered our 24,000 sq. ft. Midtown commercial build-out ahead of schedule. Their command of DOB regulations and strict milestone tracking minimized tenant disruption entirely.

Executing a complete multi-level brownstone gut renovation in Brooklyn Heights is notoriously demanding. Their structural engineering accuracy, site cleanliness, and architectural finishes were top-tier.

Their historic facade restoration and structural retrofit preserved our building's landmark status while seamlessly modernizing MEP systems. True NYC construction professionals.

We eliminate project uncertainty through comprehensive coverage, transparent operations, and rigorous risk management protocols. Every build is safeguarded by strict regulatory compliance and uncompromising standards of accountability.
Full state licensure, commercial general liability, and comprehensive builder's risk policies protecting every job site.
Bank-grade 256-bit encryption safeguards your proprietary schematics, bid submissions, and client data exchanges.
Dedicated project leads, structured weekly updates, and direct lines to executive superintendents for rapid alignment.
Itemized line-item budgeting, transparent labor schedules, and zero hidden contingencies at contract signing.
Critical-path milestone tracking, proactive supply chain staging, and adherence to certified delivery schedules.
Whether you're planning a commercial development, residential renovation, or large-scale construction project, Cornerstone Construction Group is ready to bring your vision to life.
Licensed & Insured • Dedicated Project Supervision • Transparent Feasibility
From preliminary architectural schematics to structural completion, our specialized divisions deliver institutional-grade execution across six primary disciplines.
Comprehensive construction management, site superintendence, procurement oversight, and precision scheduling for complex build programs.
Corporate headquarters, retail flagships, and industrial facilities engineered for code compliance, structural longevity, and operational efficiency.
High-end residential transformations, estate extensions, bespoke millwork, and custom interior architecture crafted with unyielding attention to detail.
A unified delivery model fusing licensed architectural design with hands-on construction acumen to accelerate timelines and eliminate variance.
Advanced load calculation, foundation reinforcement, steel framing diagnostics, and seismic retrofitting for mission-critical infrastructure.
Careful preservation of landmark structures incorporating historic masonry, period-correct timber restoration, and discrete modernization of mechanical systems.
Every major build begins with structural clarity. During this 30-minute technical consultation, our senior project directors evaluate your architectural vision, site parameters, and financial framework to outline an actionable path to execution.
Guaranteed Direct Consultation: No generic sales reps. You will speak directly with a licensed construction executive.
Select your project scope to connect with our structural lead.
Read authentic accounts from property owners who entrusted their high-spec residential builds and commercial developments to our precision-led engineering team.
Cornerstone managed our ground-up custom build with surgical precision. Their blueprint adherence, milestone transparency, and exact timeline execution avoided every industry delay standard.

Managing a 40,000 sq ft structural fit-out with zero commercial downtime felt daunting until Cornerstone took charge. The engineering rigour and craftsmanship delivered on budget and ahead of schedule.

Preserving historic masonry while incorporating modern cantilever steel required master-class contractors. Cornerstone delivered impeccable structural balance and exceptional day-to-day professionalism.

Over 450+ high-value residential & commercial projects delivered with zero structural compromises.

Delivering premier architectural construction, structural engineering, and luxury renovations with enduring precision and elite craftsmanship across the region.
Headquarters:
8400 Architectural Way, Suite 400
Metropolitan Center, NY 10018
Phone: (800) 482-9104
Email: [email protected]
Mon - Fri: 7:00 AM - 6:00 PM
Sat: By Appointment Only
© 2026 Cornerstone Construction Group. All rights reserved. Precision architectural engineering, residential luxury builds, and commercial contracting. General Contractor License #GC-982341-NY.