Completed modern farmhouse addition with board-and-batten siding and a stone base overlooking the Hudson Valley

Hudson Valley general contractor

Built right
from the first stone.

Remodeling, additions, new construction, exterior, commercial, and federal projects, all planned carefully and built to last.

Request an estimate View services
01

Residential

02

Commercial

03

Federal & public sector

Services

One builder for every phase of the project.

From a single kitchen to a full commercial build-out, we handle planning, permits, and the work itself, with clear communication from start to finish.

High-end kitchen remodel with white oak cabinets and a stone island

Remodeling

Kitchens, bathrooms, basements, and whole-home renovations finished to a high standard.

  • Kitchens
  • Bathrooms
  • Basements
  • Interiors
Timber frame of a new home addition under construction

Additions & new builds

Room additions, garages, and custom homes designed to fit your property.

  • Additions
  • Garages
  • Custom homes
New deck and stone patio behind a renovated colonial home

Exterior work

Decks, siding, roofing, patios, and concrete that hold up to Hudson Valley winters.

  • Decks
  • Siding
  • Roofing
  • Concrete
Renovated main street commercial building with a glass storefront

Commercial

Storefronts, offices, and tenant fit-outs, scheduled to keep your business running.

  • Tenant fit-outs
  • Storefronts
  • Offices
  • Renovations
Crew in hard hats and safety vests at a brick government building renovation with scaffolding

Federal & public sector

Ready for government work.

Cornerstone 845 bids on federal, state, and municipal construction projects. We bring the same planning, safety, and documentation to public facilities that we bring to every job.

Request our capability statement

Capabilities

  • Facility renovation & repair
  • Interior build-outs
  • Exterior & envelope work
  • Site & concrete work
  • General construction services

NAICS codes

236220
Commercial & institutional building
236118
Residential remodelers
236115
New single-family housing
238990
All other specialty trade contractors

Process

A clear plan before the first nail.

  1. 01

    Consult

    We walk the site, listen to your goals, and talk through budget and timing.

  2. 02

    Estimate

    You get a detailed written estimate and scope, with nothing hidden.

  3. 03

    Build

    We handle permits, scheduling, and crews, with regular progress updates.

  4. 04

    Walkthrough

    A final walkthrough together, and we stand behind the work.

Service area

Rooted in the 845.

We work across the Hudson Valley in Orange, Ulster, Dutchess, Sullivan, Rockland, and Putnam counties. Larger commercial and government projects are considered region-wide.

  • Orange
  • Ulster
  • Dutchess
  • Sullivan
  • Rockland
  • Putnam

Request an estimate

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