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(365) 399-5986

Commercial plumbing

Backflow Device Testing for Commercial Sites

A backflow preventer stops used water from flowing back into the public supply. Commercial properties are commonly required to test these devices on a schedule.

  • Clear diagnosis before any cutting or replacing
  • Price explained before the work starts
  • Tested with water running before we leave
  • Booked by phone, no forms
Call now

or ring (365) 399-5986Real people answer. Bookings by phone only.

  • Licensed & insured (details on request)
  • Oakville & Halton
  • Phone bookings only
A red and white control valve sign on a mechanical room wall
A red and white control valve sign on a mechanical room wall.

Where you will find these devices

  • On the incoming service right after the meter in most commercial buildings.
  • On lawn irrigation systems for plazas and condos.
  • On fire sprinkler connections.
  • On equipment like boilers, dish machines and soda dispensers.

Job sheet: Backflow Device Testing for Commercial Sites

Where we get in
Main service past the meter, irrigation boxes and equipment supply lines
On the van
Calibrated differential test kit, repair kits for check valves, relief valve parts
Before we pack up
Device passes a full differential test after any repair
How to book
Phone only: (365) 399-5986

What the annual test includes

  • Checking the shut-off valves on either side of the device.
  • Measuring pressure differences across each check valve with a test kit.
  • Confirming the relief valve opens when it should.
  • Recording results on the form your water authority accepts.

Signs you need this now

  • A notice that your annual test is due
  • Water dripping from the relief port
  • New equipment added to the water supply
  • A device that has never been tested
  • Low pressure after the device was installed

When a test does not pass

  1. You hear which check or relief part let go, and the likely reason.
  2. Rubber parts, springs or seats are replaced where the device allows.
  3. The device is retested after the repair.
  4. If the device is beyond repair, we quote a replacement.

The visit in five steps

  1. 1Confirm device type, size and location
  2. 2Isolate and connect the test kit
  3. 3Record readings across each check valve
  4. 4Repair and retest any failed part
  5. 5Hand over the completed test report

Keep on top of your program

  • Note the test due date on every device you own.
  • Keep copies of past test reports in one folder.
  • Check current Halton Region cross-connection requirements, since programs and forms change over time.
  • Tell us about any new equipment tied into the water supply.

Straight answers to common calls

Does a test shut off our water?

Only for a little while. We isolate the device during the test and agree the timing with you first.

Do you submit the report?

We fill in the test results and can help you send them where your water authority asks.

Keep reading

Ready when you are

One call books the visit. Tell us what you are seeing and we will tell you straight what it likely is.

Call (365) 399-5986
Call now · (365) 399-5986