Last Updated: February 25, 2026 — Reviewed by Brian Hayes, Licensed Master Plumber
Unless you’re a professional, plumbing can feel pretty confusing. After all, how are you to know what goes on in all those pipes and tubes? As it turns out, though, there are many things even plumbing-adverse homeowners can learn in order to spot trouble in their pipes and put an end to it before it becomes a major issue.
Here’s what you need to know:
How to Tell If Your Plumbing Needs Professional Attention

The plumbing system is not one that works in plain sight. As such, it can be tough to tell when it needs attention. As a general rule, though, you should look for these warning signs:
- Your faucets are making odd sounds. Screeching, clanging, or moaning coming from your pipes typically indicates that your plumbing system has air in it. Don’t worry, though, a plumber can bleed this air out of your system and return it to good working order.
- Low water pressure. Low water pressure is a common issue, especially in homes with older plumbing systems. While this issue can be caused by dozens of different problems, it typically has an easy fix once the cause is identified.
Contact a plumber if you notice this issue.
- Unpleasant smells. If you’ve got a sewage smell wafting up from your drains, it could be anything from a blocked drain vent to a buildup of food waste in your drains.
No matter the cause, this necessitates an immediate call to the plumber.
- Stains. Stains or damaged walls are both good indicators of plumbing problems. These could indicate leaks or other forms of water damage. Call a plumber immediately if you notice any of this.
Hayes Plumbing: Your Source for Professional Service

Here at Hayes Plumbing, we pride ourselves on offering customer-centric plumbing service you can count on. Whether you need drain clearing or rooter service, renovations or general plumbing repairs in and around Oshawa, we’re here for you.
Contact our team today to learn more about our services and schedule your consult now.
Additional Resources
Frequently Asked Questions
When should I call a plumber for know if plumbing bad?
You should call a licensed plumber for know if plumbing bad when the issue persists after basic troubleshooting, involves water pressure changes, or requires access to pipes behind walls. Hayes Plumbing serves Oshawa, Ajax, Whitby, Clarington, and Pickering.
How much does know if plumbing bad cost in Durham Region?
The cost of know if plumbing bad in Durham Region depends on the complexity of the job and parts required. Hayes Plumbing provides upfront pricing before beginning any work so there are no surprises.
Should I try DIY or hire a professional for know if plumbing bad?
While minor issues can sometimes be addressed with DIY methods, know if plumbing bad often requires a licensed plumber to ensure the work meets Ontario plumbing code. Hayes Plumbing is fully licensed, WSIB certified, and BBB accredited.
Need help with plumbing repairs or installations? Hayes Plumbing & Bathroom Renovations serves Oshawa, Ajax, Whitby, Clarington, and Pickering. Contact us or call (905) 576-3043 for a free estimate.

