Family Owned & Operated For 100 Years
Tankless Water Heaters
Professional Tankless Water Heaters from licensed plumbers. Upfront pricing. Workmanship guaranteed. Serving the Golden Horseshoe since 1922.
Tankless water heaters heat water on demand rather than maintaining a stored tank of hot water, eliminating standby heat loss and delivering significantly lower energy consumption for most households. A correctly sized tankless unit provides continuous hot water at a consistent temperature regardless of simultaneous demand. Professional installation includes correct venting, gas or electrical supply sizing, and isolation valves for maintenance access.
How Our Tankless Water Heaters Service Works
A clear, professional process every visit, every customer.
Assess Hot Water Demand
We calculate your peak hot water demand based on fixture count, household size, and usage patterns to confirm the correct unit flow rate and BTU rating.
Select the Right Unit
We recommend a unit based on your fuel type, flow rate requirement, and installation location, with clear explanation of operating cost vs. upfront cost trade-offs.
Prepare the Installation Site
Gas line sizing, venting configuration, and condensate drain routing are assessed and any required modifications are completed before the unit arrives.
Install and Connect
The unit is mounted, gas or electrical connections completed, venting installed, and isolation valves fitted for future maintenance access.
Commission and Test
Flow rate, temperature, and simultaneous demand are tested before sign-off. We walk you through the unit controls and maintenance schedule.
Benefits of Professional Tankless Water Heaters
Endless Hot Water on Demand
A correctly sized tankless unit delivers continuous hot water at a consistent temperature regardless of how many fixtures are running simultaneously.
Significant Energy Cost Reduction
Eliminating standby heat loss reduces water heating energy consumption by 20 to 40 percent for most households, producing real savings on every utility bill.
Correct Sizing Is Everything
An undersized tankless unit cannot meet peak demand. We calculate your actual peak flow rate before recommending a model, so it performs as expected every time.
Space-Saving Wall-Mount Installation
Tankless units mount on the wall and take a fraction of the floor space of a traditional tank, freeing up mechanical room space for other uses.
Long Service Life
Tankless water heaters have a design life of 20 or more years when properly maintained, significantly longer than conventional tank units.
Gas Line and Venting Modifications Included
Where the existing gas line or venting is not sized for the new unit, we complete all required modifications as part of the installation scope.
Workmanship Guaranteed
All tankless water heater installations are covered by our full workmanship guarantee on labour and installation.
100+ Years of Trusted Service
Birnie has been installing water heating systems across the Golden Horseshoe since 1922. Our advice on tankless is based on experience, not a sales script.
Signs You Need Tankless Water Heaters Service
Existing tank water heater is due for replacement
Household regularly runs out of hot water during peak demand
High gas or electricity bills attributable to water heating costs
Endless hot water is required for a large household or multiple simultaneous users
Space constraints in the mechanical room would benefit from a wall-mounted unit
Existing unit is in a garage or unheated space where freeze protection is a concern
Hot water delivery to remote fixtures takes too long with the existing tank location
A renovation is planned that would require relocating or resizing the water heating system
Interest in reducing long-term operating costs through on-demand heating technology
Why Homeowners Choose Birnie Plumbing & Drains
Over 100 Years in Business
Family-owned for five generations since 1922. That kind of longevity is only possible by consistently doing right by customers.
Licensed and Insured
Every technician is a licensed plumber. Every job is fully insured. Professional-grade work with full accountability on every visit.
Diagnosis Before Recommendation
We identify the actual cause before recommending any repair. You get clear options with honest explanations — not upsells.
Upfront Pricing
We explain the cost clearly before work begins. No hidden charges. No after-the-fact additions. The price you approve is the price you pay.
Workmanship Guaranteed
All labour and materials are covered by our workmanship guarantee. If something we repaired fails, we come back and make it right.
Serving the Golden Horseshoe
From Hamilton and Burlington to Niagara Falls and Brantford, Birnie has served communities across the region for over a century.
Upgrade your the Golden Horseshoe home to endless hot water with a tankless (on-demand) water heater. Never run out of hot water during back-to-back showers again, and reduce water heating costs by 20–30% compared to a tank unit. Birnie Plumbing & Drains installs and services all major tankless brands — Navien, Rinnai, Noritz, and others — throughout the Golden Horseshoe, with proper sizing, gas line assessment, and venting included.
Call 1-877-578-4659 or request service online.
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Ready to Book Your Tankless Water Heaters Service?
Licensed plumbers. Upfront pricing. Over 100 years of trusted service across the Golden Horseshoe.