Tankless Water Heater Repair Vancouver
Tankless and On-Demand Water Heater Repair Across Metro Vancouver, 24/7
Vanheat Services provides tankless water heater repair across Vancouver and Metro Vancouver, with error code diagnosis and descaling for most major brands, and gas work performed by certified, professional and bonded gas technicians. Each call starts with diagnosis, the repair price is provided in writing after diagnosis and before approved repair work begins, and we answer (604) 281-4790 24/7, with any applicable after-hours premium quoted before work begins. 4.9 stars from 250+ Google reviews, serving Metro Vancouver since 2008.
Content reviewed by Vanheat Services' certified technicians. Last updated September 23, 2026.
Call (604) 281-4790Book a Service Call
Rated 4.9 Stars by 250+ Homeowners Across Metro Vancouver
Real reviews from 250+ customers across Metro Vancouver for water heating, heating and HVAC service.
"It completed most of the paperwork dealing with the City and Strata, saving me a lot of time on those tedious work. It's efficiently finishing the installation in 2 days, clean and tidy. VanHeat Services also has a very good and reliable after sale service giving you a peace of mind."
"We had a great experience with Shaun and teams from Vanheat Heating and Air Conditioning Services installing our mini-split air conditioning system. After getting quotes from several companies, we chose Vanheats because they were very knowledgeable, thorough, and patient with all of our questions... Highly recommended!"
"The team arrived on time, was professional, and explained everything clearly. They worked efficiently, paid attention to detail, and left the work area clean after the installation... I would definitely recommend Vanheat Services to anyone looking for reliable and professional HVAC services."
"Great experience with Vanheat for the installation of a ductless mini split system in my condo. They gave several options for equipment prices and dealt with all the permits, etc. The installation is tidy and they took care not to make a mess or damage anything during the process. Thanks!"
"Super responsive, fast and easy install. I would highly recommend."
250+ reviews and counting
Read All Reviews on GoogleWarning Signs Your Tankless Water Heater Needs Repair
Tankless units are reliable, but they do develop faults over time. Here are six warning signs worth a service call.
Error Codes on the Display
Most tankless units display fault codes for conditions such as ignition failure, overheating or flow-sensor faults. The code narrows the search, and the fault behind it is diagnosed before any part is replaced.
No Hot Water or Inconsistent Temperature
A unit that fires up but delivers lukewarm water, or cuts out mid-shower, can point to a flow sensor issue, a scale-restricted heat exchanger or a failing igniter. Diagnosis isolates the cause before any part is replaced.
Ignition or Flame Failure
A unit that clicks but fails to ignite, or lights and then shuts off, can have a gas supply issue, a worn igniter or a flame-sensor problem. Gas-side faults are diagnosed and repaired as regulated gas work.
Water Leaking from the Unit
Moisture around a tankless unit can come from loose fittings, a cracked heat exchanger or a failing pressure relief valve, and should be assessed promptly to prevent water damage around the installation.
Low Hot Water Flow
Reduced hot water flow on a tankless system can point to scale or debris inside the heat exchanger or a clogged inlet filter. Descaling and filter cleaning address the buildup, with the right service depending on the unit's condition.
Maintenance Due or Overdue
Tankless maintenance requirements vary by manufacturer, usage and water conditions. If your unit is past the schedule for your equipment, a service visit, which may include inspection, inlet-filter cleaning and descaling where required, can catch developing issues before a breakdown.
Common Tankless Water Heater Problems We Fix
Tankless faults often fall into a handful of common categories, across the water, gas and control sides of the unit.
Scale and Mineral Buildup
Minerals and debris can accumulate inside the heat exchanger over time, reducing efficiency and triggering overheat or flow error codes. A flush and descale addresses the buildup, with the right interval depending on your unit and water conditions.
Flow Sensor Failure
The flow sensor tells the unit when water is running and triggers the burner. A failed sensor can mean no heat or inconsistent firing, and sensors are tested during the diagnostic before any replacement.
Igniter and Flame Sensor Issues
A worn igniter or dirty flame sensor can prevent the burner from lighting or cause safety lockouts. Many igniter and sensor replacements can be completed on the first visit when the part is available.
Control Board Faults
The control board coordinates many of the unit's ignition, temperature, flow and safety functions, and a board fault can show as wrong error codes, unresponsive settings or shutdowns. Boards are tested against the symptoms before replacement is recommended.
Venting and Exhaust Problems
Blocked or incorrectly installed venting can cause safety shutdowns and carbon monoxide risk. Venting is inspected and corrected as regulated work completed to applicable code under Technical Safety BC.
Pressure Relief Valve Issues
The pressure relief valve protects the unit from excess pressure, and a valve that drips or fails to seat needs attention. The valve can be tested and replaced when diagnosis confirms it is faulty.
Our Tankless Water Heater Repair Services in Vancouver
When you call Vanheat Services, a technician diagnoses the problem first, the repair price is provided in writing after diagnosis and before approved repair work begins, and many repairs can be completed on the same visit when the part is available. From routine service to emergency repairs, approved work is billed at the quoted price.
We service most major tankless water heater brands sold in BC. If your unit is beyond economical repair, we also handle full replacement, including traditional hot water tank options, and our technicians carry common parts on their service vehicles. View our full water heater repair and installation services for everything we cover across Metro Vancouver.
- Tankless diagnosis and error code repair
- Heat exchanger descaling and flushing
- Flow sensor testing and replacement
- Igniter and flame sensor replacement
- Control board testing and replacement
- Gas burner and gas valve repair
- Pressure relief valve testing and replacement
- Venting and exhaust inspection to applicable code
- Annual tankless maintenance and descaling
- Repair versus replacement assessment
- Full water heater installation when replacement is needed
Why Vancouver Homeowners Call Vanheat Services First
Serving Metro Vancouver since 2008: showing up, diagnosing honestly and fixing it right.
4.9 Stars, 250+ Reviews
Our rating is built on honest advice, clean workmanship and showing up when we say we will. Read our Google reviews before you call.
Licensed, Insured and Bonded
Vanheat Services is a licensed, insured and bonded HVAC contractor, and gas work is performed by certified, professional and bonded gas technicians under Technical Safety BC requirements.
24/7 Emergency Response
We answer (604) 281-4790 24 hours a day, 7 days a week for hot water emergencies across Metro Vancouver, with any applicable after-hours premium quoted before work begins.
Upfront Pricing in Writing
Each call starts with diagnosis, the repair price is provided in writing after diagnosis and before approved repair work begins, and approved work is billed at the quoted price.
Google Guaranteed
Vanheat Services is a Google Guaranteed contractor. Google Guaranteed status reflects Google's screening requirements for participating service providers.
10-Year Warranty on Installations
When repair is no longer the right call, replacement installations are backed by a 10-year parts and labour warranty, with terms provided in writing.
Tankless Water Heater Repair Across the Lower Mainland
Vanheat Services dispatches technicians across Metro Vancouver and the Lower Mainland, with no separate trip fee in our core service area.
Not sure if we cover your address? Call (604) 281-4790.
Tankless Water Heater Repair Vancouver: Common Questions
Common questions Vancouver homeowners ask about tankless water heater repair and service.
How much does tankless water heater repair cost in Vancouver?
Tankless water heater repair cost in Vancouver depends on the fault and the brand of your unit. Service such as descaling or a sensor replacement typically sits toward the lower end, while control board or heat exchanger work ranges higher. Each call starts with diagnosis, and Vanheat Services provides the repair price in writing after diagnosis and before approved repair work begins. Call (604) 281-4790 to book.
How long does a tankless water heater repair take?
Many common tankless repairs can be completed on the first visit when the part is available, and our technicians carry diagnostic equipment and common parts on their service vehicles. If a part needs to be ordered, we let you know during the diagnostic along with the expected timing.
Is it worth repairing my tankless water heater or should I replace it?
A widely used guide is the 50 percent rule: if a repair quote is more than half the cost of a replacement and the unit is well into its service life, replacement often delivers better long-term value. Replacement may also be more practical when the heat exchanger has failed or required parts are no longer available for the model. A Vanheat Services technician can assess the unit and give you an honest recommendation with no pressure to buy.
Which tankless water heater brands do you repair?
Vanheat Services services most major tankless water heater brands sold in BC. If your model needs a part we do not stock, we confirm availability and timing during the diagnostic. Call (604) 281-4790 with the brand and model and we will confirm before booking.
Do I need to service my tankless water heater every year?
Maintenance requirements vary by manufacturer, equipment and water conditions, and many manufacturers recommend annual service. Follow the schedule for your unit; depending on the system, maintenance may include inspection, inlet-filter cleaning and heat exchanger descaling where required. We help you document the service your warranty may require, and Vanheat Services provides tankless maintenance across Metro Vancouver.
Do you offer emergency tankless water heater repair?
Yes. Vanheat Services answers (604) 281-4790 24 hours a day, 7 days a week for hot water emergencies across Metro Vancouver, and any applicable after-hours premium is quoted before work begins. If the unit is actively leaking, close its cold-water isolation valve before you call. If you smell gas, leave the home first, then call 911 or the FortisBC Emergency Line at 1-800-663-9911.
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Vanheat Services dispatches technicians 24/7 across Metro Vancouver for tankless repairs, with any applicable after-hours premium quoted before work begins. Error code diagnosis first, repair price in writing, most major brands covered. 4.9 stars from 250+ Google reviews, serving Metro Vancouver since 2008.
Call (604) 281-4790Book a Service Call