Hot Water

Reliable hot water, sized for how your home actually lives.

Nobody thinks about the water heater until there’s no hot water. Delson Air installs and replaces both conventional tank and high-efficiency tankless water heaters, sized to your household so you’re not paying to heat water you never use — or running out mid-shower.

(647) 467-9919 Get a free estimate

Licensed

Provincial trade license

Insured

Full liability coverage

TSSA Licensed

Gas / fuel safety certified

Enbridge Contractor

Authorized partner

What we do

Water Heaters services, end to end.

We handle the gas, venting, and water connections to code, haul away the old unit, and leave the space clean.

Tankless water heaters

On-demand units that deliver endless hot water and free up floor space — a popular GTA upgrade.

Tank water heaters

Dependable conventional tanks, correctly sized so you don’t run cold or overpay to heat unused water.

Water heater replacement

Fast swaps when the old unit leaks or fails, with proper disposal of the old tank.

Repair & maintenance

Thermostats, elements, valves, anode rods, and venting — serviced to extend the unit’s life.

Combi options

Where it fits, a combi boiler can handle both heating and hot water from one efficient appliance.

Why Delson Air

Why homeowners choose us for water heaters.

Right size, right type

We match tank vs. tankless to your household’s real demand — not a one-size guess.

Code-compliant gas & venting

Hot-water work involves gas and combustion venting; we install it safely and to code.

Clean and complete

Old unit removed, area left tidy, system tested — the small things that make a job feel finished.

FAQ

Water Heaters questions, answered.

Tankless or tank water heater — which is better?

Tankless units deliver endless hot water, last longer, and save space, but cost more up front. Tanks are cheaper to install and simple to maintain. The right choice depends on household size, hot-water habits, and budget — we’ll walk you through it.

How long does a water heater last?

A conventional tank typically lasts 8–12 years; a tankless unit can last 20 years with maintenance. If your tank is over a decade old or showing rust at the connections, it’s worth planning a replacement before it leaks.

My water heater is leaking — what should I do?

Shut off the water supply to the unit and, for a gas unit, turn the gas control to off (or pilot). A leaking tank usually means the tank itself has failed and needs replacing. Call us and we’ll get hot water back quickly.

Do you install rented water heaters?

We install owned tank and tankless units, which frees you from ongoing rental fees. We’re happy to compare the long-term cost of buying versus your current rental.

From the Journal

Helpful reading on water heaters.

Modern energy-efficient detached home exterior on a clear GTA day

Enbridge & Federal HVAC Rebates GTA Homeowners Can Claim in 2026

A plain-English guide to Enbridge and federal HVAC rebates for GTA homeowners in 2026 — heat pumps, high-efficiency furnaces, what qualifies, and how to claim.

Warm tiled bathroom floor with radiant in-floor heating in a modern home

Is Heated Flooring Worth It? Costs, Comfort & Where It Fits

Is heated flooring worth it for GTA and Toronto homes? Compare electric vs hydronic radiant floor heating cost, comfort, best rooms, and when in-floor heating pays off.

Ready when you are

Stop hoping it'll be quiet.
Start living comfortable.

Same-day estimates for most of the GTA. No high-pressure sales — just a clear quote and a clean install from a team that picks up the phone.

(647) 467-9919 Request an estimate

GTA-wide

Toronto · Mississauga · Markham · Vaughan · Brampton · Richmond Hill · Oakville and surrounding

Response

Same-day estimates · Emergency heating service available

Coverage

Two-year labour warranty on all installations