Water Heaters
Tank and tankless water heater installs, rented-tank swaps, and new-build rough-ins for St. Thomas homes.
Learn more about Water Heaters
St. Thomas's Full-Service Heating & Cooling Team
St. Thomas Heating & Cooling: One Team, Every Season
St. Thomas Plumbing keeps homes across St. Thomas, Ontario and Elgin comfortable all year. Furnaces in winter, air conditioning in summer, and steady maintenance in between, handled by one dependable team that knows your system and answers when you call.
- 24/7 Plumbing Service
- FinanceIt Financing
- 100% Satisfaction Guaranteed
- Licensed & Insured
24/7Emergency service
Licensed& fully insured
FreeNo-obligation quotes
Guaranteed100% satisfaction
LennoxPremier Dealer
Who We Are
An Established Name in St. Thomas Home Comfort
St. Thomas Plumbing is a licensed, insured plumbing company in St. Thomas, Ontario that handles both plumbing work for homeowners, from a single repair to a maintenance plan that runs all year.
We built this business on long-term relationships, not one-off calls. Homeowners stay with us because the same team services the water heater they trust us with in winter and the sump pump we check in spring. You get steady, honest advice, work done right, and someone who already knows your equipment when you pick up the phone.
Backed by our 100% satisfaction guarantee on every job.
Full Service, One Team
Everything Your Home Comfort System Needs, Under One Roof
Water heaters, drains, fixtures, repiping, and water treatment, all looked after by the same crew. Whether it is a repair today or a maintenance plan that keeps things running for years, you only need one number.
Drain Cleaning
Snaking, hydro-jetting, and camera inspections for slow drains, recurring clogs, and main-line backups across Elgin.
Learn more about Drain CleaningRepiping
Galvanized and polybutylene replacement, whole-home repipes, and PEX and copper installation for older St. Thomas homes.
Learn more about RepipingFixtures & Toilets
Toilet and faucet swaps, tub and shower installs, and new-build fixture rough-ins across St. Thomas.
Learn more about Fixtures & ToiletsLeak Detection & Repair
Acoustic and thermal leak detection, slab leak repair, and hidden-leak diagnosis for St. Thomas homes.
Learn more about Leak Detection & RepairSump Pumps & Backwater
Sump pumps, battery backups, and backwater valves to keep St. Thomas basements dry through storms.
Learn more about Sump Pumps & BackwaterWater Softeners & Filtration
Water softeners, whole-home filtration, and reverse osmosis tuned to Elgin County's hard water.
Learn more about Water Softeners & Filtration
Our Process
Why Choose St. Thomas Plumbing?
We believe in transparency, respect, and quality workmanship. Here's what every customer can expect.
We Get to Know Your System
We look at the whole picture, your plumbing system as a whole, and explain what we find in plain language. Whether it is a water heater replacement, a drain cleaning, or a repipe, you get a clear recommendation, not a hard sell.
Work Done Right the First Time
Our technicians show up on time, do the job properly, and leave your home as tidy as they found it, on every furnace, AC, thermostat, or duct job.
A Team You Keep
The job is the start of the relationship, not the end. With seasonal maintenance and a team that knows your equipment, your system keeps running well for years.
Testimonials
What St. Thomas Homeowners Are Saying
We're proud to be the plumbing partner our neighbours trust and recommend.
“Our rented tank finally gave out and they had a new owned unit in the same day. Hot water is better and the bill dropped.”
H
HomeownerSt. Thomas, ON
“Bought an older home near downtown and the galvanized pipes were throwing rust. Full repipe in PEX, water pressure is night and day.”
H
HomeownerSt. Thomas, ON
“Drain kept backing up in the basement. They camera'd it, found roots, and hydro-jetted it clean. Honest quote, no upsell.”
R
ResidentLondon, ON
Comfort Care
Comfort Care: Our Annual Maintenance Plan
Keep your furnace, air conditioner, heat pump, or boiler running its best with a Comfort Care membership. Members get priority booking, 15% off repairs all year, and detailed service records that back your warranty, all from the same local team that already knows your equipment.
Ready to Improve Your Home Comfort?
No matter the make or model, our experts have the tools and experience to handle any furnace, air conditioner, heat pump, or ventilation issue, fast.
FAQs
Frequently Asked Questions
Answers to the questions St. Thomas homeowners ask us most.
Are you licensed plumbers?
Yes. We are licensed plumbers serving St. Thomas and Elgin County, and every job that requires one is filed with the local authority and inspected, so the work is legal, insurable, and documented.
Do you offer emergency plumbing service in St. Thomas?
Yes. We take emergency calls across St. Thomas and the surrounding Elgin area for floods, burst pipes, sewage backups, and no-water situations, with a local crew that reaches you fast.
Should I replace my galvanized pipes?
If you have an older St. Thomas home with galvanized steel lines, yes. Discoloured water, low pressure, and repeat pinhole leaks are the usual signs. We repipe in PEX or copper and file the permit.
Tank or tankless water heater for my St. Thomas home?
It depends on household size, hot-water demand, and whether you want to ditch the rented tank. We size both options honestly and quote them straight so you can choose on facts, not a sales pitch.
How do I know if I have a hidden leak?
A high water bill with no obvious cause, a damp spot, warm flooring, or the sound of running water when nothing is on are all signs. We use acoustic and thermal detection to pinpoint it before we open walls.
Does Elgin County water really need a softener?
Elgin draws some of the hardest water in southern Ontario, and most St. Thomas homes benefit from a softener. It protects the water heater, the fixtures, and your skin, and we size it to real demand.
How much does a plumbing job cost?
We offer free, no-obligation quotes, and we explain all pricing clearly before any work starts. Whether it is a toilet swap or a full repipe, there are no surprises.
Do you serve areas outside of St. Thomas?
Yes. We serve St. Thomas and the surrounding Elgin and southwest London communities including Aylmer, Belmont, Port Stanley, and parts of London.
Service Area
Serving St. Thomas & Surrounding Communities
We provide fast, reliable plumbing service throughout St. Thomas and Elgin. If you don't see your town listed, give us a call, chances are we cover it.