Professional Tankless Water Heater Installation & Repair. Enjoy endless hot water with energy-efficient on-demand systems. 24/7 emergency service.
Upgrade to endless hot water with tankless technology
Maximum efficiency, endless hot water, and long-term savings
Never run out of hot water again. Tankless systems heat water on demand, providing continuous hot water for your entire household.
Save 20-30% on energy costs by eliminating standby heat loss. Tankless units only heat water when you need it.
Compact wall-mounted design frees up valuable floor space. Perfect for condos, small homes, and basement installations.
Last 20+ years compared to 8-12 years for traditional tanks. Better warranty coverage and long-term reliability.
Advanced technology perfectly suited for Southwestern Ontario homes
Modern tankless units are designed to handle London's cold groundwater temperatures, providing consistent performance year-round.
With Ontario's energy costs, the 20-30% savings from tankless systems provide excellent return on investment for London homeowners.
Perfect for London's condos, townhouses, and older homes where basement space is limited or valuable.
Choosing the right on-demand system for your London home
High-performance option for larger homes and families
Efficient option for smaller homes and point-of-use
Maximum efficiency with advanced heat recovery
Professional installation for optimal performance and efficiency
Evaluate your home's hot water needs, gas/electrical capacity, and installation requirements for proper system sizing.
Choose the right tankless unit based on flow rate requirements, energy source, and your household's simultaneous usage patterns.
Expert installation including gas/electrical work, venting, water connections, and proper mounting for optimal performance.
Complete system programming, performance testing, and homeowner training on operation and maintenance requirements.
We install and service top-quality on-demand water heater brands
Transparent pricing for professional tankless water heater services
Expert tankless water heater solutions backed by experience
Accurate flow rate calculations and proper sizing to ensure your tankless system meets your household's simultaneous hot water demands.
All gas tankless installations performed by TSSA-certified technicians ensuring safety, proper venting, and code compliance.
Specialized knowledge in London's hard water conditions and proper descaling maintenance to protect your investment.
Expert electrical assessments and upgrades when needed for electric tankless installations, ensuring safe and reliable operation.
Rated excellent across multiple platforms
Real experiences from satisfied customers across Southwestern Ontario
"Hawana installed our Navien tankless system last year. We went from running out of hot water with a family of five to endless hot water. Our gas bill dropped by 25%!"
"The space savings alone was worth it. Our basement feels twice as big without that huge tank. The installation was professional and they handled all the venting perfectly."
"We were worried about the cost, but the energy savings have already covered half the investment in just 18 months. Hawana's maintenance plan keeps it running perfectly."
Common questions about on-demand water heater systems
Most London homeowners save 20-30% on their energy bills with tankless water heaters. For a typical household spending $600 annually on water heating, that's $120-$180 in savings each year. With current energy rates and potential rebates, most systems pay for themselves within 5-7 years.
Yes, when properly sized. We calculate your household's maximum simultaneous hot water demand to ensure your tankless system can handle multiple showers, laundry, and dishwasher use simultaneously. Most whole-home gas tankless units can deliver 6-9 gallons per minute, sufficient for 2-3 fixtures at once.
Gas tankless water heaters require electricity to operate their controls and ignition systems, so they won't work during power outages. However, electric tankless units obviously also require power. We recommend considering a small backup power solution if continuous hot water during outages is critical for your household.
In London's hard water conditions, tankless water heaters require annual descaling to prevent mineral buildup that can reduce efficiency and damage the heat exchanger. We recommend:
Tankless water heaters typically last 20+ years, while traditional tank water heaters last 8-12 years. With proper maintenance, some tankless units can last 25 years or more. The longer lifespan, combined with energy savings, makes tankless systems an excellent long-term investment for London homeowners.
Expert information to help you make informed decisions
Learn about energy-efficient water heaters from Natural Resources Canada.
Check current energy rebate programs from Enbridge Gas.
Learn about federal grants from Canada Greener Homes.
Learn about gas appliance safety from TSSA.
Professional tankless water heater installation and repair services
Installation Services: Available throughout all listed areas
Emergency Repair Services: Available in London and within 50km radius
Upgrade to a tankless water heater and enjoy continuous hot water while saving on energy costs. Trust Hawana HVAC for professional tankless installation and service in London Ontario.
We know that your time is precious, whether it's renting a property, your own property or your company, we will be there immediately, so you can resume your daily activities with as little disruption as possible.
Our technicians are experienced and use new, original, and high-quality parts to complete your equipment repairs.
Other companies will give you the invoice to the unknown amount when repairing. Along with us, it will always take some effort before the work done before work is done.
Hawana HVAC Solutions is your trusted partner for exceptional HVAC services across London, Ontario, and beyond. Our reach extends to key cities within a 150-mile radius, including, Sarnia, Windsor,
Kitchener, Hamilton, Mississauga, Brampton, Etobicoke, and Toronto. We’re dedicated to providing our clients with reliable, efficient, and prompt services, ensuring comfort and satisfaction in every home and business we serve. No matter where you are in Southwestern Ontario or the surrounding regions, our expert team is here for you 24/7. 365
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