St. Catharines Plumbers
When plumbing problems strike in St. Catharines, trust the licensed experts at Mr. Furnace Heating and Air Conditioning. Our skilled plumbers handle everything from leaking taps to major pipe replacements, delivering fast, reliable solutions that fix the issue and help prevent future problems.
With over 4 decades of experience and same-day service on most calls, we’ll get your plumbing working perfectly—without delay or hassle.

Your Professional St. Catharines Plumbers
Mr. Furnace delivers full-service plumbing solutions for homeowners across St. Catharines. Our certified plumbing team responds quickly and completes the work with lasting results.
Our residential plumbing services include:
Frozen Pipe Repair
Kitec Plumbing Replacement
Leak Detection & Repairs
Preventative Plumbing Maintenance
General Plumbing Repairs
Sink Installations
Sump Pump Installation & Service
Faucet and Fixture Replacements
Toilet Repairs & Installations
Water Filtration Systems
Water Main Repairs
Water Softener Installations
We also provide comprehensive drain and sewer services. From clearing everyday blockages to diagnosing hidden line damage, our plumbing professionals have the right tools to restore your system.
Emergency Plumbing Services in St. Catharines
When you’re faced with a plumbing disaster, our emergency plumbers respond right away. Mr. Furnace provides 24/7 emergency plumbing services in St. Catharines, including evenings, weekends, and holidays. A serious plumbing problem can’t wait—and we don’t expect you to. Our dispatchers are always ready to send out help.

- Frozen or burst pipes
- Major leaks and active flooding
- Sewer line blockages or backups
- Complete drain clogs
- Water heater breakdowns
- Sudden loss of water pressure
- Gas line problems
- Damaged or leaking main lines
Each emergency plumber arrives with a fully stocked service van equipped with the latest tools and replacement parts. Most emergencies can be fixed on the first visit, avoiding delays and reducing the risk of long-term water damage.
Why Choose Mr. Furnace as Your Plumber in St. Catharines?
Arrive Right Away
When there’s water pouring through your ceiling or sewage coming up through the drains, every second counts. Our plumbers arrive quickly, ready to start work immediately. With 47 years of trusted local service, we know what matters most in emergencies—speed, professionalism, and results.
Licensed and Experienced Technicians
Every plumber at Mr. Furnace is fully licensed and certified to work in Ontario. Our team has years of experience with residential systems and complicated plumbing problems. From newer builds to century-old homes, we have the knowledge to fix issues across all types of plumbing systems.
Upfront, Transparent Pricing
You deserve to know exactly what you’re paying for. We provide clear estimates with full cost breakdowns before we start any work. Once the job is complete, there are no surprise fees. Our pricing is honest, straightforward, and fair.
Comprehensive Warranty Protection
We stand behind our work. Every plumbing job includes a full 90 day workmanship warranty along with manufacturer-backed protection for any new parts we install. If there’s ever a problem with our repair, we’ll return and address it at no extra charge.
Mr. Furnace – Your Go-To Plumber in St. Catharines
Ready to fix a leak, plan a fixture upgrade, or handle a plumbing emergency? Mr. Furnace is here for you. We’ve been St. Catharines’ trusted plumbing professionals for over four decades—and we’re ready to help whenever you need us.

FAQs About St. Catharines Plumbers
When Should I Call a Plumber?
Call a professional plumber right away if you notice:
- Leaks coming from your ceiling, walls, or floorboards
- No water coming from taps or very low water pressure
- Bad smells or sewage backing up through drains
- Toilets, sinks, or showers that are completely clogged
- A water heater that isn’t working or leaking water
- Frozen or burst pipes in winter
- Pooling water in your basement
- Toilets that won’t stop running or make odd noises
- More than one drain slowing down at the same time
- Water meter spinning while no water is being used
- A spike in your water bill with no known cause
- Discoloured water or water with an unpleasant smell
Our licensed plumbers will inspect the issue and provide a permanent solution before it turns into a bigger—and more expensive—problem.
How Quickly Can Mr. Furnace's Plumbers Respond to An Emergency?
We offer same-day responses for all plumbing emergencies in St. Catharines. Our team is available 24/7 and can be at your home within hours of your call. Our vans are stocked and ready so we can start the fix right away—no delays or waiting around for parts.
Do You Provide Commercial Plumbing Services in St. Catharines?
Yes, we do. Mr. Furnace serves both residential and commercial clients in St. Catharines. We provide expert plumbing services for retail buildings, restaurants, office spaces, and multi-unit residences. From repairs and replacements to regular maintenance, we’ve got your business covered.
Do You Offer Maintenance Plans for Plumbing Systems?
Yes. Our maintenance plans help keep your plumbing system in top shape all year long. We inspect your entire system, catch potential issues before they cause damage, and recommend ways to improve efficiency. It’s a cost-effective way to prevent big plumbing problems in the future.