Water Heater Repair & Maintenance
Water Heater & Tankless Water Heater Repair and Maintenance in Durham Region
A dependable hot water system is essential for your home’s comfort and daily routine. Whether you have a traditional tank water heater or a modern tankless water heater, unexpected problems can quickly disrupt your day.
At Aire One East Heating & Cooling, we provide professional water heater and tankless water heater repair and maintenance services throughout Durham Region. Our licensed technicians are experienced in diagnosing and repairing all major makes and models, helping restore your hot water quickly and efficiently.
Whether your system has stopped producing hot water, is leaking, or simply isn’t performing as efficiently as it once did, we’re here to provide reliable solutions you can trust.
Call us Today for Testing & Repair Your Water Heater!
Professional Water Heater Repair Services
When your water heater isn’t working properly, prompt service can help prevent further damage and restore your home’s hot water supply as quickly as possible.
Our experienced technicians repair both traditional storage tank and tankless water heaters and can resolve a wide range of common issues, including:
- No hot water
- Inconsistent water temperature
- Water taking too long to heat
- Leaking water heater or plumbing connections
- Strange noises such as popping or rumbling
- Low hot water pressure
- Pilot light or ignition problems
- Error codes on tankless systems
- Mineral or sediment buildup
- Water that is discoloured or has an unusual odour
Our goal is always to repair your existing system whenever it is safe and cost-effective. If replacement is the better long-term solution, we’ll explain your options clearly so you can make an informed decision.
Tankless Water Heater Repairs
Tankless water heaters are highly efficient, but like any mechanical system, they require occasional servicing to maintain peak performance.
Our technicians are trained to diagnose and repair common tankless water heater issues, including:
- Inconsistent hot water
- Fluctuating water temperatures
- Flow sensor problems
- Ignition failures
- Error code diagnostics
- Scale buildup from hard water
- Venting or exhaust issues
- Reduced system efficiency
Regular servicing helps ensure your tankless water heater continues to provide reliable, on-demand hot water while maximizing energy efficiency.
Preventative Water Heater Maintenance
Routine maintenance is one of the best ways to extend the life of your water heating system and reduce the likelihood of unexpected breakdowns.
During a maintenance appointment, our technicians thoroughly inspect your system to ensure it is operating safely and efficiently.
Maintenance services may include:
- Complete system inspection
- Checking burners and heating components
- Testing safety controls
- Inspecting venting and exhaust systems
- Flushing sediment from storage tanks (when applicable)
- Cleaning tankless heat exchangers and internal components
- Checking water pressure and plumbing connections
- Inspecting valves and fittings
- Performance testing
Regular maintenance helps improve efficiency, reduce energy costs, and keep your hot water system operating reliably year after year.
Benefits of Routine Maintenance
Scheduling regular maintenance for your water heater or tankless water heater provides several long-term benefits, including:
- Improved energy efficiency
- More consistent hot water performance
- Lower utility costs
- Reduced risk of unexpected repairs
- Longer equipment lifespan
- Early detection of potential issues
- Improved system reliability
- Greater peace of mind
A properly maintained water heating system not only performs better but can also help you avoid costly emergency repairs in the future.
Signs Your Water Heater May Need Service
If you notice any of the following, it’s time to schedule a professional inspection:
- No hot water or inconsistent hot water
- Water heater leaking
- Rust-coloured or cloudy water
- Unusual noises coming from the tank
- Fluctuating water temperatures
- Low hot water pressure
- Rising energy bills
- Your water heater is over 10–15 years old
- Error codes displayed on a tankless unit
Addressing these issues early can often prevent more extensive repairs or premature equipment replacement.
Emergency Water Heater Repairs
Losing hot water is never convenient. That’s why Aire One East Heating & Cooling offers prompt, dependable repair services to restore your hot water as quickly as possible.
Our technicians arrive equipped with the tools and experience needed to diagnose many problems during the initial visit and complete repairs whenever possible.
Whether your system is leaking, not heating, or has stopped working altogether, you can count on our team for professional service and honest recommendations.
Why Choose Aire One East Heating & Cooling?
Homeowners throughout Durham Region trust Aire One East Heating & Cooling because we’re committed to delivering quality workmanship and exceptional customer service.
When you choose us, you’ll receive:
- Licensed and experienced technicians
- Repairs for both tank and tankless water heaters
- Preventative maintenance services
- Honest recommendations and expert advice
- Upfront, transparent pricing
- Prompt, reliable service
- High-quality replacement parts
- Long-term solutions tailored to your home
- A commitment to complete customer satisfaction
Whether you need a simple repair, annual maintenance, or expert advice about your water heating system, Aire One East Heating & Cooling is here to help.
Contact us today to schedule water heater or tankless water heater repair and maintenance services anywhere in Durham Region.
Brand we carry
Water heater repair FAQs
What to do first when there is no hot water or a leaking tank, and how to judge whether a repair is worth doing on an older unit.
Service details at a glance
| Booking hours | Monday to Saturday, 8:00 am – 8:00 pm |
|---|---|
| Emergency service | 24/7 for no-heat and no-cool failures |
| Phone | 905-576-7600 |
| Service area | Whitby, Oshawa, Ajax, Pickering, Courtice, Bowmanville, Port Perry and Uxbridge |
| Pricing | Quoted upfront and approved by you before work begins |
| Technicians | Licensed, insured and background-checked employees |
| Typical tank life | 8–12 years |
| Emergency priority | Active leaks — shut off cold supply and gas or breaker, then call |
| Repaired | Both tank and tankless, gas and electric |
My water heater is leaking — what should I do right now?
Shut off the cold water supply at the valve above the heater, turn off the gas control or the electrical breaker feeding it, and call 905-576-7600. If the leak is coming from the tank body rather than a fitting, the tank cannot be repaired and needs replacing — the priority becomes limiting water damage. If it is a fitting, valve or relief valve, it is usually a straightforward repair.
Why do I suddenly have no hot water?
On a gas unit: pilot or ignition failure, a failed thermocouple or gas control valve, or a tripped safety. On an electric unit: a tripped high-limit reset, or a failed upper or lower heating element. Before calling, check whether the breaker has tripped and, on electric tanks, press the red reset button on the upper thermostat once. If it trips again, stop — that is a fault, not a glitch.
Is it worth repairing a water heater that is over ten years old?
Usually only if the repair is small and external — a thermocouple, a valve, an element. Tanks typically last 8–12 years, so spending significantly on a unit at year eleven means paying for a repair with little remaining life behind it, and taking the risk of a tank failure flooding your basement. On a tankless unit, which commonly reaches 20 years, the calculation is very different and repair usually makes sense.
Why is my hot water rusty or discoloured?
It generally means the glass lining inside the tank has failed and the steel is corroding, often because the sacrificial anode rod was depleted years earlier. Rusty hot water on a tank past 8 years is effectively a replacement signal. If only the cold water is discoloured, the problem is upstream in the plumbing or supply rather than the heater.
What causes rumbling or popping noises from my water heater?
Sediment on the tank bottom. Water trapped under the sediment layer boils and forces its way out, producing the popping or rumbling. It reduces efficiency and effective tank capacity and accelerates bottom corrosion. Annual flushing prevents accumulation; once the layer is thick and hardened, flushing helps less and the tank is on borrowed time.
My tankless unit is showing an error code — what now?
Note the exact code before resetting, because it tells the technician which subsystem failed and saves diagnostic time. The most common causes are scale build-up in the heat exchanger from missed annual descaling, restricted venting or air intake, and gas supply pressure problems. Repeatedly resetting a unit that keeps faulting risks turning a service call into a heat exchanger replacement.
Areas we serve across Durham Region
Related services
- Furnace repair
- Furnace installation
- Air conditioner repair & tune-ups
- Heat pump installation
- Water heater repair & installation
- Tankless water heaters
- Air duct & vent cleaning
- Indoor air quality
- Ductless mini-splits
- Protection plans & maintenance
- Whole-home humidifiers
- Rent or buy a furnace
- Rent or buy an air conditioner
