Apply for Financing

Join our Team!

Backwater Valve

Sewage Backups Happen

Sewer systems are typically gravity based and flow through a main trunk line. When a sudden heavy rainstorm overloads the main sewer system sewers can backup into homes and business.

How a Backwater Valve Helps Protect you from Flooding

A mainline backwater valve can help prevent sewage in an overloaded main sewer line from backing up into your basement. Placed directly into the sewer lateral in your basement, the valve automatically closes if sewage backs up from the main sewer line.

Need HVAC Service?
Contact the experts at Postma.

Postma Technicians Can Assist You

Experts You Can Trust

Our mission is to provide valuable and informative services that ensure the comfort and safety of our customers.  

We have been serving Chatham-Kent and the surrounding area for over 30 years. Established in 1989 by brothers, Ron and George Postma and their wives, Hetty and Linda – the company continues to be family owned and operated to this day.  

Postma Heating & Cooling Inc. employs certified, local contractors that are dedicated to understanding your unique situation, providing you with valuable solutions, and presenting you with a price before the work begins. We are pleased to provide a Service Partner Plan and regular maintenance options to catch small problems before they have the chance to grow into serious ones.