Professional CT Plumbing Contractor & Heating Experts

CT plumbing contractor providing full licensed and insured plumbing services throughout New Haven and Fairfield Counties in Connecticut
Schedule an Appointment(203) 876-7875

Plumbing Services

Plumbing Services

ONZE residential plumbing services provide peace of mind for customers throughout New Haven County. Find out more about installation, maintenance plans and our plumbing services.

Heating Services

Heating Services

Our residential heating services provide comfort all year round so your home keeps a comfortable temperature and operates efficiently. Find out more about furnace and hot water installation and our annual maintenance services.
ONZE Plumbing Protection Plan

Ensure Peace of Mind with our ONZE Plumbing Protection Plan

ONZE offers customers more with our plumbing service agreement benefits. Benefits include:
  • Access to 24/7 after-hours emergency services
  • Annual plumbing system inspections
  • Documentation of each fixture and component
  • Service reports that outline upcoming repair needs
Call our office for details about becoming a member.
Residential Construction

Residential Construction

At Onze Southern CT Plumbing & Heating, we offer a wide range of plumbing and heating installation support for your remodeling and construction project. When you are installing new kitchens or bathroom fixtures, ensure your project is installed by the best CT plumbing contractor with the greatest of care and professionalism.
Commercial Construction

Commercial Construction

We work alongside America’s highest-rated general contractors providing tenant fit-out and tenant build-out services for commercial properties throughout Connecticut.

Our Track Record Speaks For Itself

#1

Residential & Commercial plumbers in New Haven & Fairfield Counties

Since 1989

Serving Milford and all of New Haven and Fairfield Counties

1000s

Of satisfied customers served

Why Customers Refer Our Plumbing Services

Customers Refer Our Plumbing Services
ONZE is built on solid referrals from customers in Milford and the surrounding areas. Our team of professional plumbers are trusted among residential and trade businesses alike.

At ONZE Plumbing and Heating we want to help our customers to resolve their plumbing and heating issues. When we send a plumber to a customer’s home or business, our goal is your complete satisfaction. We’ll always take the time to listen to your concerns and offer our suggestions backed by our many years of experience. Read our many online reviews to see how customers agree that we always offer the best customer service.

Top rated in all of New Haven
and Fairfield Counties

We offer comprehensive plumbing and heating
services specifically designed to meet the unique needs of all sizes.

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“As a General Contractor I have worked with many Plumbing contractors over the last 30 years and Onze SCHP are the best plumbers I have ever worked with. Having worked with them since 2012 we have done dozens and dozens of jobs together. Will, Jason, Jim and staff are always responsive, professional, punctual, detail oriented, knowledgeable and a pleasure to work with. They are clean, honest and reliable, I use them at my own home as well. I couldn’t recommend them enough!”

Jud Aley
R.J. Aley Building Contractor

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“Onze plumbing and heating has been our go to contractor for our plumbing needs in all of our projects. They have consistently been on time, transparent, fair and maintained a very high standard of quality throughout numerous projects over many years. Everyone that works at Onze has always been respectful, knowledgeable and an asset to every on of our projects. We could not recommend them enough. It is a pleasure to work with such a well run company.”

Nathan Misbach
Owner, Lions Creek Construction

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“I’ve worked with the Onze team on several residential projects and have always appreciated their commitment to quality and professionalism.”

Mark Burtnett
Project Manager, Prutting and Co.

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“I needed some modifications to a drain and water lines for a remodeled bathroom. I called Onze Plumbing and Heating due to recommendations from colleagues. I spoke to Will. He understood exactly what I needed and had a couple of solutions immediately and said he would be sending out a guy next day. Rob from Onze Plumbing came out next day, on time, and got the job done immediately. They recognized my problem and fixed it accordingly. I will call them for all my plumbing and heating from now on. Great pricing.”

Jeannie Duval

ONZE Community Connection

Tailored to serving the unique homes, businesses, and
people of our community since 1989.

Contact Us Today to Schedule a Complimentary Consultation

Serving New Haven and Fairfield Counties CT

Ansonia
Branford
Bridgeport
Cheshire
Derby
Darien
Easton
East Haven
Fairfield
Greenwich
Guilford

Hamden
Meriden
Milford
Monroe
New Canaan
New Haven
North Haven
North Branford
Norwalk
Orange
Seymour

Shelton
Stamford
Stratford
Trumbull
Wallingford
Westport
Weston
West Haven
Wilton
Woodbridge