Expert Full Plumbing System Installation and Repair in Orange County, NY

Whether you are building a new home, completing a major renovation, or replacing an outdated plumbing system, A. Stevens Plumbing & Heating Inc. has the experience and resources to handle the entire project. Serving Washingtonville, NY, and all of Orange County, our licensed plumbers deliver full plumbing system solutions from rough-in to finish—on time, on budget, and built to last. Call (845) 496-5903 to discuss your project today.

What a Full Plumbing System Installation Includes

A complete plumbing system encompasses far more than the pipes you can see. Our technicians plan and install every element of a functional water supply and drainage system, including:



  • Supply lines for hot and cold water throughout the structure
  • Drain, waste, and vent (DWV) piping to safely remove wastewater
  • Main water service connection and shutoff
  • Fixture rough-in for sinks, toilets, showers, bathtubs, and appliances
  • Water heater connection and installation
  • Pressure regulation and backflow prevention
  • Final trim and fixture installation
Plumber in blue uniform repairing under-sink pipes with tools in a cabinet
Blue-gloved hands tightening a bathroom sink drain under a white basin

New Construction and Remodel Plumbing

New construction plumbing requires careful coordination with builders, electricians, and other trades to ensure everything comes together correctly during framing, rough-in, and finish stages. Our team has extensive new construction experience across Orange County and is comfortable working within established project timelines. For remodels, we assess existing systems and recommend the most efficient path forward — whether that means a partial upgrade or a full replacement.

Whole-Home Repiping

Homes built before the 1980s may still contain galvanized steel or lead pipes that corrode over time, reducing water pressure and contaminating your water supply. A. Stevens Plumbing & Heating specializes in whole-home repiping using modern, durable materials that will serve your family for decades. We minimize disruption to your home during the process and ensure every connection is pressure-tested before we leave.

Close-up of a chrome wrench tightening a white pipe fitting under a sink
Red industrial pipes and valves mounted under a concrete ceiling.

Commercial Plumbing Systems

Our services extend to commercial properties throughout Orange County, NY. From small retail spaces to larger commercial buildings, we design and install plumbing systems that meet code requirements and stand up to the demands of commercial use. We understand that downtime is costly for businesses, which is why we plan commercial installations carefully and work efficiently to minimize interruptions to your operations.

Frequently Asked Questions

  • How long does a whole-home repiping take?

    The timeline depends on the size of the home and the complexity of the existing system, but most residential repiping projects are completed within a few days. We work to minimize disruption and will walk you through what to expect before we begin.

  • What materials do you use for new plumbing installations?

    We use modern, code-approved materials suited to each application. Our technicians will recommend the best option for your specific project based on your water supply, budget, and the demands of the installation.

  • Do I need a permit for a full plumbing system installation?

    Most significant plumbing work — including new construction plumbing, whole-home repiping, and major system changes — requires a permit. A. Stevens Plumbing & Heating is familiar with local permitting requirements in Orange County and can guide you through the process.

Plumber installing a white bathroom sink cabinet in a wood-paneled bathroom

Request a Consultation

Every project is different, and we take the time to understand yours before providing a recommendation. Contact A. Stevens Plumbing & Heating Inc. at (845) 496-5903 or info@astevensplumbing.com. Our office in Washingtonville, NY, is open Monday through Friday, 8:00 a.m. to 4:00 p.m.