Water Heater Repair and Installation in Toronto and the GTA

Riverflow HVAC provides licensed water heater service across Toronto and the Greater Toronto Area (GTA), including Toronto, Etobicoke, North York, Vaughan, Markham, Richmond Hill, and Scarborough. Whether you have no hot water, a leak, or you’re planning a replacement, we’ll explain what’s going on clearly and help you choose the right next step.

Service call and pricing

Diagnostic and assessment fee: $130 (includes up to 1 hour on site). If more time is needed, labour is $130 per hour after the first hour. Repairs are billed for time plus parts and materials.

Water heater service and repair

No hot water, inconsistent temperature, water around the tank, unusual noises, or a unit that keeps shutting down are all common issues. We service most major brands and work on both tank and tankless water heaters, including natural gas, propane, and electric where applicable.

Common repairs and service items include:

• Pilot or ignition issues (gas)

• Heating element or thermostat issues (electric)

• Leaks from valves, fittings, or connections

• Venting and safety-related issues (where applicable)

• Performance issues tied to sediment or scale buildup

If the tank is leaking from the body of the unit, we’ll be upfront about it. In many cases, replacement is the safest and most practical option.

Maintenance and performance checks

Maintenance can help your water heater run better and last longer, especially in areas with mineral-heavy water. Typical maintenance may include:

• Storage tank service such as inspection and flushing to reduce sediment buildup

• Tankless descaling (flush) to help restore flow and performance

• Basic safety and performance checks, plus simple recommendations to help prevent surprises

Installation and replacement

If you’re replacing an older unit or upgrading for better performance, we’ll help you choose a setup that fits your household and your space. We install:

• Tank-style water heaters (gas, propane, or electric where applicable)

• Tankless water heaters for on-demand hot water and efficiency

We’ll confirm what’s required for a safe install and complete the work to code, with a clean finish and clear communication throughout.

Common related components (as needed):

• Expansion tanks

• Mixing valves (for safer, more consistent temperature)

• Shutoff and isolation valves for easier future service

Where any portion of the work requires a licensed plumber, we coordinate with trusted trade partners so the job is handled properly.

What to expect when you book

We start with a proper assessment and explain what we found. If a repair makes sense, we’ll outline the plan and pricing before moving ahead. If replacement is the better option, we’ll give clear choices so you can decide what works best for your home.

Water heater service FAQ

Do you offer same-day help for no hot water?
When scheduling allows, we prioritize no-hot-water calls and aim to restore hot water as quickly and safely as possible.

What does the $130 diagnostic include?
It includes the visit and up to 1 hour on site for troubleshooting and assessment. Additional time is billed at $130 per hour.

Should I repair or replace my water heater?
We’ll help you decide based on safety, age, leaking risk, parts availability, and the cost of repair compared to replacement value.

Do you install and service tankless water heaters?
Yes. We install and service tankless water heaters, including maintenance and descaling when performance drops due to scale buildup.

Do I need an expansion tank or mixing valve?
Sometimes. It depends on your plumbing setup and what’s required for safe operation. We’ll explain what’s needed and why, and only recommend add-ons that make sense for your situation.

Riverflow's Preferred Brands
for New Installations: