01
Concrete Repair
Restoration of damaged concrete surfaces, slabs, and structural elements on all residential and commercial buildings.
Structural Repair & Maintenance · NYC & Westchester
Built on strength.
Driven by purpose.
Thessa Construction LLC performs structural repair and maintenance on existing commercial and residential buildings across New York City and Westchester County — concrete repair, masonry, and general structural repair and restoration. Need something else? Contact us.
NYC DCWP #2137148-DCWP
Licensed & Fully Insured
NYC + Westchester
Service Area
Engineer-Led
B.S. Civil Engineering
Woman Owned
Owner-Operated
01 — Who we are
A repair & maintenance company built around craft, care, and trust.
Thessa Construction is a Yonkers-based contractor serving property owners, managers, and institutions throughout the Tri-State Area, including the five boroughs and Westchester County. We specialize in structural repair and maintenance for commercial and residential buildings — concrete repair, masonry, and general structural repair and restoration. Need something outside this scope? Contact us to discuss.
02 — Capabilities
Repair & maintenance, done with care.
Three focused disciplines. One accountable team. Contact us to discuss your project's needs and determine whether it fits our capabilities.
02
Masonry
Brick, block, and stone repair with a craftsman's attention to detail.
03
General Structural Repair & Restoration
Targeted structural repair and restoration for aging commercial and residential buildings. Need something else? Contact us to discuss your scope.
Need something specific?
We work on
Parking garagesWarehousesCommercial buildingsResidential buildingsMulti-family
Yonkers, NY
Headquarters
03 — Leadership
A founder-led firm with skin in every project.
Thessa Construction LLC was founded to bring a higher standard to building repair and maintenance in the New York metro area — one rooted in disciplined craftsmanship, transparent communication, and an unwavering commitment to safety.
— Julia Tsesmetzis, Founder & Owner
That hands-on leadership is why our clients keep coming back: structural integrity, schedule integrity, budget integrity. Every time.
Yonkers, NY
Headquarters
NYC + Westchester
Service Area
Repair & Maintenance
Project Focus
- License
- NYC DCWP #2137148-DCWP · Home Improvement Contractor · Active through Feb 2027
- Insurance
- General liability, workers' compensation, and disability coverage carried on every job
- Education
- B.S. Civil Engineering, Manhattan University
- Structure
- Thessa Construction LLC, a New York limited liability company
04 — Where we build
Serving all of NYC and Westchester County.
From Manhattan buildings to properties across Westchester, our crews are mobilized across the metro area — Manhattan, Brooklyn, The Bronx, Yonkers, and every municipality in Westchester County.
Manhattan
Brooklyn
The Bronx
Yonkers
White Plains
New Rochelle
Mount Vernon
Scarsdale
Greenburgh
All Westchester
05 — Start a project
Let's talk about what you're building.
Send project details, drawings, or a quick scope. The Thessa team will get back within one business day.