Westchester County, NY
General Contractor in Westchester County, NY
General Contractor serving Westchester County, NY. Licensed NYC contractor, over a decade of experience, and free on-site estimates.
Alliance coordinates residential and commercial construction from site assessment through closeout, bringing related trades and exterior work under one accountable contractor.
General Contractor work in Westchester County
Westchester County includes detached homes, larger residential properties, multifamily buildings and commercial sites. Exterior projects frequently involve larger elevations, driveways, yards and foundation conditions than typical dense-city sites. For general contracting, larger lots and exterior areas can change access, drainage and material quantities, so Alliance evaluates the complete site before proposing a scope.
What we evaluate before pricing
- Renovation scope and sequencing
- Coordination between multiple trades
- Exterior and structural repairs
- Occupied-property planning
How Alliance approaches the job
Alliance serves Westchester County by scheduled site visit, with estimates based on property access, existing conditions and the full scope rather than a one-size-fits-all price. We document the visible conditions, discuss the result you want, identify related work that could affect the project and provide a written estimate based on the agreed scope.
Areas we serve
We provide general contracting estimates across Westchester County, NY, including Yonkers, New Rochelle, Mount Vernon, White Plains and surrounding communities.
- Yonkers
- New Rochelle
- Mount Vernon
- White Plains
- Pelham
- Eastchester
- Scarsdale
- Hartsdale
Related services

Get a price on general contracting
- Phone
- (347) 515-8989
- License
- NYC HIC 2037327-DCA
- Hours
- 7 days, 7:30am to 9pm
- Estimate
- Free and on site
When to call us
Signs you need general contracting
If you recognise any of these, it is worth having someone look before it gets more expensive.
- A project involving more than two trades
- Work that needs DOB filing
- A schedule that has already slipped
- Nobody coordinating the subcontractors
What causes it
Why this happens
On a multi trade job the cost overruns almost never come from the trades themselves. They come from sequencing, when tile arrives before the substrate is ready or electrical is roughed after drywall closed the walls. Every one of those is a redo billed to somebody. The general contractor exists to own that sequence, and it is the part of the job that is invisible when it is done properly.
Budget guidance
What general contracting costs in NYC
General contracting is normally priced as a percentage of project cost, commonly 10 to 20 percent, or built into a fixed price scope. We work to a written scope with payments tied to stages of completion. No large deposit up front and nothing billed for work that has not been done.
These are indicative ranges to help you budget, not a quote. Every building is different and we price after seeing the job.
What we work with
Materials and systems
- Written scope with staged payments
- Licensed and insured subcontractors
- DOB filing and inspection coordination
- Certificates of insurance for building management
How it works
Straightforward from the first call
Call or send your drawings
If you have plans we work from them. If not we will tell you what you need.
On site walkthrough
We look at what is actually there, including whatever is behind the walls.
Written scope with staged payments
Clear breakdown and a payment schedule tied to completion stages.
Build, with one point of contact
Trades coordinated and sequenced, and someone reachable throughout.
Where we do this work
General Contracting across NYC and Westchester
We carry out general contracting throughout Westchester County, Queens, Brooklyn, Manhattan and Westchester County, on residential and commercial property.
Everything in this group
What this covers
These are the specific jobs that fall under this service. Each has its own page with detail and pricing guidance.
- Residential Construction
- Commercial Construction
- Home Renovation
- Kitchen Remodeling
- Bathroom Remodeling
- Basement Finishing
- Foundation Repair
Questions
General Contracting questions
Do you provide general contracting throughout Westchester County?
Yes. Alliance schedules estimates across Westchester County, NY, including Yonkers, New Rochelle, Mount Vernon, White Plains, Pelham and surrounding areas. Availability depends on the project scope and schedule.
How is the estimate prepared?
We inspect the relevant conditions on site, discuss the intended scope, note access or related work that can affect pricing, and provide a written estimate. Estimates are free.
What should I prepare before a general contracting estimate?
If available, have photos, building-management requirements, violation or inspection paperwork, and a short description of the problem ready. For Westchester County properties, access details are also useful.
Are permits or agency filings always required?
No. Requirements depend on the work. Alliance identifies when the proposed scope may require permits, DOT/DOB coordination or other documentation and discusses that during planning.
Free on site estimate
Need general contracting in Westchester County or NYC?
Call us or send a message and we will arrange a free on site estimate at a time that suits you.