Integrity
We explain what we find and give customers clear information before work begins. You should understand what your plumbing needs and why.
ABOUT DELTA PLUMBERS Ontario Plumbing
Ontario Plumbing
Company Serving Customers Since 1947
Choosing a plumbing company means knowing who will work on your property. Delta Plumbers is licensed and insured, with over 75 years of experience providing dependable plumbing services across Ontario.
75+ Years in Business
18.2K+ Satisfied Customers
4.8★ Rating
Est. 1947
Delta
Plumbers
Plumbers
Canadian-Owned. Locally Rooted.
24/7 Emergency Service
Licensed & Insured
The Delta Story From One Van to Serving
From One Van to Serving
Ontario Communities
Delta Plumbers started small and grew as customer needs changed. Each milestone helped the team serve more communities, build its experience, and support a wider range of plumbing needs.
1947
Niagara, ON
The Beginning
Douglas Parker started Delta Plumbers in Niagara with one service van and one toolkit. The first service call was for a dripping faucet in the local community.
1962
4-vehicle fleet
Going Commercial
The company secured its first commercial contract to serve a group of downtown condos. The fleet also grew to four service vehicles.
1976
10 locations
Ten Communities
Delta Plumbers expanded to ten communities across the region, reaching from Niagara toward the Greater Toronto Area.
1989
10 licensed plumbers
A Growing Team
The team grew to ten licensed plumbers and expanded into complete bathroom renovations and new-build construction across Ontario.
2001
20 locations
Ten More
Delta Plumbers added ten more communities, bringing its service reach to 20 locations across Southern Ontario.
2011
Second generation
A New Generation
Douglas Parker's son, John Parker, took the lead in the family business alongside his brother, Murray Parker. They continued the hands-on standards established by their father.
2012
HomeStars Best of
Award-Winning Service
Delta Plumbers received its first HomeStars Best Plumber recognition, marking another milestone in the company's service history.
2016
Always on call
24/7 Emergency Line
Delta Plumbers introduced a 24/7 emergency line so customers could reach the team when urgent plumbing problems could not wait.
2020
Ontario-wide
7843+ Customers
The company reached 8,000 customers across Ontario and provided its milestone customer with the completed job at no charge.
Today
21 technicians
18218+ and Counting
Delta Plumbers continues to provide residential plumbing and commercial support while building on the experience gained since 1947.
What We Stand For
Our Core Values
Customers want more than someone who can complete the job. They also want clear answers, careful work, and respect for their property. These values shape how Delta Plumbers serves each customer from the first call to the completed service.
Quality
Our team takes care with every service call. We focus on solid workmanship and complete the work with the property’s long-term needs in mind.
Safety
We work carefully around your property, plumbing system, and fixtures. Safe work helps protect the people who use the space each day.
Community
Our local plumbers serve the communities where customers live and work. We value the trust built through every home, business, and service visit.
Speed
We respond quickly when customers need plumbing help. Our team works to keep the service moving without rushing the work.
Accountability
We take responsibility for the work we complete. Our team keeps customers informed and stands behind the service we provide.
75+ Years in Business Proudly serving Ontario since 1947
18218+ Satisfied Customers All across Ontario
4.8★ Average Rating From 2,500+ reviews
24/7 Emergency Service Here for you, day or night
The People Behind Every Job
Meet the Team
Meet the people behind Delta Plumbers. Our team brings hands-on experience, care, and clear communication to the plumbing services we provide across Ontario.
Since 1999 Master Plumber & OwnerJohn
John
Parker
Second-generation owner who took the reins from his father Douglas in 2011 and runs Delta alongside his brother Murray. He still turns up in person for the tricky jobs.
Since 2002 Co-OwnerMurray
Murray
Parker
John's brother and right hand. He co-owns Delta and keeps the crews, schedules, and standards tight on every single job.
Since 2008 Senior PlumberMarcus
Marcus
Johnson
Residential renovation specialist. When it's a bathroom gut-job, a slab leak, or a rough-in, Marcus is the first name called.
Since 2015 Customer Success LeadElena
Elena
Pappas
Makes certain every customer walks away happy — our 4.8★ rating has her fingerprints all over it.
Now Hiring
View Open Positions Want to Join the Team?
Looking for your next opportunity? Explore open positions and learn what it is like to grow your career with our team.
Verified Google Reviews What Ontario Customers
What Ontario Customers
Say About Delta Plumbers
4.9
Customer reviews can help you feel more confident before choosing a plumbing company. See what Ontario customers say about the service, communication, and care they received from Delta Plumbers.
Our shower drain had been giving us trouble for weeks but Ali from Delta Plumbers fixed it in no time. Excellent customer service.
Multiple toilets and our bathtub backing up at once?? I'd never seen anything like it. Tony diagnosed the pipe clog instantly — what a lifesaver.
Very happy with my tankless water heater installation. Quick and hassle-free process — would recommend.
Money was tight and Peter gave me a few budget alternatives. He saved the day — would recommend to anyone.
Our shower drain had been giving us trouble for weeks but Ali from Delta Plumbers fixed it in no time. Excellent customer service.
Multiple toilets and our bathtub backing up at once?? I'd never seen anything like it. Tony diagnosed the pipe clog instantly — what a lifesaver.
Very happy with my tankless water heater installation. Quick and hassle-free process — would recommend.
Money was tight and Peter gave me a few budget alternatives. He saved the day — would recommend to anyone.
Our shower drain had been giving us trouble for weeks but Ali from Delta Plumbers fixed it in no time. Excellent customer service.
Multiple toilets and our bathtub backing up at once?? I'd never seen anything like it. Tony diagnosed the pipe clog instantly — what a lifesaver.
Very happy with my tankless water heater installation. Quick and hassle-free process — would recommend.
Money was tight and Peter gave me a few budget alternatives. He saved the day — would recommend to anyone.
Called Delta on a Sunday — they were the only company that came out within an hour. Dustin was polite and quick.
Super fast response time — arrived early. Domenic was friendly, efficient, and even a pet magnet. Will call them again.
Provided awesome service. Very professional, courteous, and respectful — first time calling a plumber and I'm glad I did.
My water boiler had sprung a leak and they replaced the pipe the same day. Grateful for such prompt service.
Called Delta on a Sunday — they were the only company that came out within an hour. Dustin was polite and quick.
Super fast response time — arrived early. Domenic was friendly, efficient, and even a pet magnet. Will call them again.
Provided awesome service. Very professional, courteous, and respectful — first time calling a plumber and I'm glad I did.
My water boiler had sprung a leak and they replaced the pipe the same day. Grateful for such prompt service.
Called Delta on a Sunday — they were the only company that came out within an hour. Dustin was polite and quick.
Super fast response time — arrived early. Domenic was friendly, efficient, and even a pet magnet. Will call them again.
Provided awesome service. Very professional, courteous, and respectful — first time calling a plumber and I'm glad I did.
My water boiler had sprung a leak and they replaced the pipe the same day. Grateful for such prompt service.
Recognition & AwardsA Reputation Earned Over
A Reputation Earned Over
75 Years of Trust
Honoured by HomeStars three years in a row and backed by a 100% satisfaction guarantee — the record speaks for itself.
Service Areas
Where We Serve
Our local plumbers provide residential plumbing and commercial plumbing across many Ontario communities. Check the map to see whether our team provides plumbing services in your area.