Combi Boiler Maintenance and RepairsCombi Boiler Maintenance is a critical aspect of home maintenance often overlooked due to common misconceptions.

Given the round-the-clock usage of Combi Boiler, manufacturers highly recommend conducting an annual maintenance check-up. This routine servicing mitigates the natural wear and tear of the appliance due to consistent use, safeguarding its optimal performance and longevity.

Why Regular Combi Boiler Maintenance Important

Combi boiler maintenance holds numerous benefits, particularly for Toronto residents cherishing the comfort of a warm home and hot water supply. It's vital to arrange for at least one professional maintenance service annually, performed by an accredited heating contractor like The Boiler Shoppe, ensuring that your Viessman Vitodens 100-W, B1KA Combi Boiler, or any other model, operates at peak efficiency.

Benefits of consistent combi boiler maintenance include:

  • Enhanced efficiency saving you money
  • Minimized risk of breakdowns or expensive repairs
  • Increased reliability of your boiler
  • Prevention of potential lethal carbon monoxide leaks

Common Issues Prevented With Regular Combi Boiler Maintenance

Maintaining your combi boiler isn't just about ensuring efficient performance and saving money on your utility bills. It's also about avoiding common issues that can lead to larger problems if not addressed. Let's take a look at some of these issues that can be prevented with regular maintenance.

  • Reduced Efficiency
    Over time, without regular maintenance, your combi boiler's performance can gradually decline. This results in a higher energy consumption to produce the same amount of heat, subsequently increasing your energy costs. Regular maintenance ensures your boiler is running at its optimal efficiency, keeping your energy costs in check.
  • Leaks and Drips
    Regular wear and tear can lead to minor leaks or drips in your combi boiler system. While these may seem minor initially, they can lead to significant damage over time if left unchecked. During a routine maintenance check, technicians can identify any potential leak points and rectify them before they evolve into larger issues.
  • Strange Noises
    Combi boilers should operate quietly. If you start noticing unusual noises such as banging, whistling, or gurgling, it could indicate a problem within the boiler system, such as low water pressure, a faulty pump, or air in the system. Regular maintenance can identify these issues early and mitigate them before they become serious problems.
  • Thermostat Issues
    If you're finding your thermostat unreliable or it's not accurately reflecting the temperature in your home, this might be a sign of a problem. Regular maintenance checks include the thermostat, ensuring it's working as it should be.
  • Carbon Monoxide Leaks
    A faulty combi boiler can potentially leak carbon monoxide, a poisonous gas that's harmful to humans. This is one of the most serious issues a boiler can have, but it can be avoided with regular checks and maintenance.

Regular maintenance of your combi boiler can prevent these common issues, ensuring that your home stays warm and comfortable year-round.

During a scheduled maintenance appointment, a technician from The Boiler Shoppe will carry out several tasks, including:

  • Initial boiler functionality test
  • Visual inspection of the boiler and its surrounding area for compliance with current legislation and safety standards
  • Firing test to ensure your boiler's effective functioning
  • Flue inspection for adequate ventilation and blockage clearance
  • Removal of any accumulated dirt and debris within the system
  • Internal components check, including the burner and heat exchanger
  • Cleaning of the external casing

At The Boiler Shoppe, our aim is to provide you with unmatched Combi Boiler Maintenance. 

Contact The Boiler Shoppe for a quick quote and schedule your next Combi Boiler Maintenance service. Trust us with your boiler's health, for a warmer, safer, and more comfortable home.

Optimizing Your Boiler for Peak Performance

Benefits of a Boiler Tune-Up

Benefits of a Boiler Tune-Up

Boilers are considered more durable than furnaces. Also, they have fewer moving parts. Because of these factors, people often overlook maintenance tasks or assume that their boilers do not need attention every year.

Installing a New Boiler or Replacement

New Boiler or Replacement?

A reliable and efficient boiler is essential for any home, providing heat and hot water to keep you and your family comfortable. However, over time boilers can become less efficient and need to be replaced.

Boilers vs. Water Heaters

Boilers vs. Water Heaters

Electric water heaters and boilers have advantages and disadvantages, each with their own pros and cons. Choosing for your home depends on your situation and how much you will spend on your new water heater.



VIESSMAN Radiant Energy and Efficient Solutions.


Efficient and eco-friendly hot water heater with fully-modulating input for reduced energy waste. Compact and lightweight, exceeds Energy Star requirements with low emission combustion. Greater venting flexibility up to 200’.


Efficient, compact wall-mount hot water heater with low emission combustion and fully-modulating input to reduce energy waste. Exceeds Energy Star efficiency standards and offers flexible venting options up to 200’.


Energy-efficient and eco-friendly hot water heater with fully-modulating input and low emissions. Compact and lightweight wall-mount design, exceeding Energy Star efficiency requirements. Multiple venting options for greater flexibility and easy installation.

Vitotron 100

Efficient and flexible electric low-temperature heating with automatic output modulation. Compact design with an integrated 3-speed circulating pump and digital control unit. Can be used as a primary low-temperature heat source or as backup for existing systems.