A ductless system heats and cools your home without ductwork – also known as mini-splits or ductless heat pumps, these are perfect for additions, small rooms, or supplemental HVAC support. G.W.B. Heating & Air Conditioning provides expert installation, repair, and maintenance to keep it running efficiently all year.
Does your home have rooms that never feel right – too hot in summer, too cold in winter? It’s a common problem across our service areas in Southern Ontario, including London, St. Thomas, and beyond – where humid summers push into the 30s and winters drop well below freezing.
Instead of relying on window units, fans, and space heaters, a modern ductless system can keep every room comfortable, no matter the season.
At G.W.B., we can help you choose the right ductless product, provide professional installation, and handle repairs and service to keep your home comfortable year-round.
Single-Zone Systems
Heat and cool one room or area – no ductwork needed. Perfect for spaces that need their own dedicated comfort control.
✔ Bedrooms • Home offices • Garages • Basements • Additions
Multi-Zone Systems
One outdoor unit, multiple indoor units. Control the temperature in each room independently, and avoid heating or cooling spaces you’re not using.
✔ Multiple bedrooms • Finished basements • Additions • Bonus rooms • Garages
Our experts will help you find the right comfort solution for your space. We also offer flexible financing so you can get the upgrade you need, affordably and right away.
If your ductless system is running but isn’t producing enough heat, there may be an issue with airflow, controls, the outdoor unit or another component of the system.
Reduced heating performance can also occur when filters are dirty or the outdoor unit is restricted by ice, snow or debris.
If basic cleaning doesn’t resolve the problem, professional service can determine what is preventing the system from operating properly.
A ductless system that isn’t providing enough cooling may have an airflow problem, dirty components, a control issue or another mechanical or refrigeration-related problem.
If your system is running continuously but your room isn’t reaching the desired temperature, it’s worth having the equipment inspected.
Water around the indoor unit should not be ignored.
Condensation is a normal part of air conditioning operation, but it should be properly collected and drained from the system. A blocked drain, drainage issue or other problem can result in water leaking from the indoor unit.
Professional service can identify the source of the leak and determine what repair is required.
Ductless systems are designed for relatively quiet operation. New or unusual sounds can indicate that something isn’t operating as it should.
Grinding, rattling, buzzing, clicking or excessive vibration can have different causes. Having the system inspected can help determine whether the noise is related to a fan, motor, mounting issue or another component.
Ice or frost on a ductless system can indicate an airflow, temperature, refrigerant or equipment issue.
While some frost can occur during normal heat pump operation, excessive or persistent ice should be investigated rather than simply being removed manually.
We offer HVAC Maintenance Plans so your heating and cooling systems are checked at regular intervals throughout the year. Regularly scheduled maintenance will help you be more prepared for seasonal weather changes, as well as avoid costly surprise repairs and breakdowns in the future.
Not sure if we can help with your specific concern? No problem! Give us a call, and we’ll assist you in figuring out what steps to take next.
Rheem is a sister brand to Ruud
Moovair ductless heat pumps are engineered and tested for Canadian winters, holding steady performance even at temperatures as low as -30°C. The ductless lineup includes single-zone wall-mounted systems in three tiers, Mistral (Essential), Meridian (Advanced), and Morelis (Ultimate), so you can match performance to your comfort needs and budget. For homes that need more than one room conditioned, the Myriad multi-zone system connects multiple indoor units to a single outdoor unit for independent room-by-room control. Every system is backed by a 10-year limited warranty on parts and compressor, one of the strongest in the industry, for lasting peace of mind. Ask one of our technicians which Moovair ductless system is best suited for your home and budget.
Mitsubishi Electric offers one of the most versatile ductless heat pump lineups available, with wall-mounted, ceiling cassette, and floor-mounted indoor units to fit almost any room or design style. Their Zuba Cold Climate Heat Pumps use Hyper-Heat (H2i™) technology, with top-tier GX and FX models rated to keep delivering warmth down to -37°C, making them a strong choice for harsh Canadian winters. All mini-split systems carry a standard 5-year parts and 7-year compressor warranty, extending to 10 years when installed and registered by a MEQ Certified HVAC Installer, or up to 12 years on qualifying FS systems. Check with G.W.B on which Mitsubishi ductless heat pump system is best for your home or business.
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