
Modern tankless water heaters feature improved heat exchangers, enhanced electronic controls, Wi-Fi connectivity, and superior efficiency ratings up to 0.97 UEF. These technological advances deliver better performance and greater energy savings than older models.
Newer high-efficiency tankless water heaters achieve 0.95-0.97 UEF ratings compared to older models at 0.82-0.90 UEF. This efficiency improvement reduces energy consumption by an additional 8-15% and lowers utility bills by $50-$150 annually beyond your current tankless system.
Modern tankless water heaters include advanced diagnostics, self-cleaning cycles, freeze protection, and enhanced durability that extends equipment lifespan and reduces maintenance requirements.
New tankless water heaters include 10-15 year heat exchanger warranties and 5-year parts coverage, demonstrating manufacturer confidence in product durability and protecting your replacement investment.
Trustindex verifies that the original source of the review is Google. Michael DominelliStart to finish, from the first call for service through completion , professional, attentive, clear. Extremely happy .Trustindex verifies that the original source of the review is Google. Dan BorosevichNathan was extremely professional and knew exactly what he was doing with our AC unit!Trustindex verifies that the original source of the review is Google. Doug VincentAC maintenance by Nathan. Excellent job!!!Trustindex verifies that the original source of the review is Google. Chris BoutinNathan and his helper installed a AC on my house, and they were fast, efficient, professional and even identified some other problems they found while crawling under my house. Very insightful and were very clean during install. Definitely recommend.Trustindex verifies that the original source of the review is Google. Tracey ChaseI was happy that I didn’t have a long wait for service I call they sent Jackson the next day. He did my furnace maintenance and got my air conditioner back up and running. Jackson was very friendly and professional. Didn’t mind my 3 yappy Yorkies. Sandy kept me informed of who was coming and what time they would arrive. Jackson followed that up when he was on his way. I would recommend Sherwood Park Mechanical to anyone.Trustindex verifies that the original source of the review is Google. Chad GroverGreat people to deal with whether it’s Peter Sandy or any one they send to the house. Always take the time to show you the problem and never up sellTrustindex verifies that the original source of the review is Google. Gerald GuenettePeter is very friendly and out going. He will make sure everything is good and your happy before he is doneTrustindex verifies that the original source of the review is Google. Patricia TetzlaffNathan was very knowledgeable and professional. You never get better service with any company like you do with Sherwood Mechanical. They do excellent work and stand behind it. Great people to deal with.


Certified plumbers assess your tankless heater’s age, efficiency, repairs, and performance, while evaluating hot water needs, gas, electrical, and venting systems to recommend the right replacement.
We identify performance improvements available with modern tankless technology, including enhanced efficiency, advanced controls, Wi-Fi connectivity, and improved reliability features.
Get detailed quotes covering tankless systems, old unit removal, installation, permits, materials, gas, electrical, and venting upgrades—no hidden fees. Clear answers when researching tankless replacement costs.
Tankless water heater installed to code, replacing old unit, upgrading gas, electrical, venting, water lines, and configuring controls advanced performance.
We test gas, water flow, temperature, venting, electrical systems, and safety controls to ensure optimal tankless water heater performance before completion.
We handle permit applications, coordinate gas fitting and electrical inspections, and ensure your tankless water heater replacement meets all safety codes throughout Sherwood Park and surrounding areas.
We register your tankless water heater with the manufacturer, activating comprehensive warranty coverage for complete peace of mind.

Ultra-high efficiency up to 0.96 UEF with advanced condensing technology. Reliable on-demand performance with compact indoor design for continuous hot water delivery throughout your home.

Exceptional efficiency up to 0.96 UEF with integrated recirculation capability. Advanced temperature control delivers instant hot water at every fixture for ultimate convenience and performance.

Superior efficiency up to 0.95 UEF with commercial-grade construction. Powerful wall-mounted design delivers robust on-demand performance for high hot water demands without sacrificing space.

Proven efficiency up to 0.95 UEF with weather-resistant construction. Engineered for exterior installation, freeing indoor space while delivering endless hot water across multiple simultaneous applications.

Tankless water heaters nearing 15–18 years may lose efficiency and need costly repairs; timely replacement prevents failures and ensures reliable hot water.

If repairs exceed half the replacement cost and frequent service is needed, your tankless water heater likely needs replacement.

Rising energy bills despite maintenance indicate poor heat exchanger efficiency; replacing tankless heaters with modern high-efficiency models restores savings.


Loss of simultaneous hot water suggests heat exchanger deterioration; replacing the tankless unit restores flow capacity and continuous hot water supply.

Older tankless models lack Wi-Fi, diagnostics, and efficiency; replacing them improves performance and provides access to modern features and technology.

Heavy scale buildup or heat exchanger corrosion from hard water often makes replacement cheaper; new tankless systems offer improved resistance.


(included with replacement)

Low monthly payments on tankless replacement

Value for your old tankless water heater
Free assessment of modern features
Don’t wait for your tankless water heater to fail when you need endless hot water most. Assess your on-demand water heater now and discover the benefits of modern tankless technology.




