Open Monday-Friday: 8am-5pm
16700 Sideroad 17A, Sunderland, ON L0C 1H0

GENERAC GENERATORS
A Generac system ensures that when the local grid fails, your home remains fully operational—keeping your heating, cooling, security systems, and essential appliances running without interruption.
Harolds heating and cooling is authorized generac dealer
Our Generac Generator Services
Authorized Installation: Professional sizing and seamless integration of your standby generator into your home’s existing electrical and fuel systems.
Annual Maintenance Plans: Scheduled multi-point inspections, oil changes, and filter replacements to ensure your unit performs at peak efficiency when you need it most.
Diagnostic & Repair Services: Rapid troubleshooting and repair by factory-trained technicians using genuine Generac parts to maintain your warranty.
System Upgrades & Sizing: Expert consultations to determine the appropriate kilowatt (kW) capacity for your home’s specific electrical load requirements.
Warranty Support: As an authorized partner, we handle warranty claims and official service records, ensuring your investment remains protected.

Why Choose a Generac System?

Fully Automated Power Restoration
The system is integrated with an Automatic Transfer Switch (ATS) that monitors the incoming utility grid 24/7. Within seconds of detecting a power loss—whether you are at home, at work, or on vacation—the generator automatically starts and transfers your home’s electrical load to backup power. This eliminates the need to navigate a dark house, pull a heavy unit out of storage, or manage dangerous extension cords in inclement weather.
Indefinite Run-Times with Continuous Fuel Integration
One of the greatest risks of a prolonged outage is running out of fuel for a portable generator. A standby system is permanently plumbed into your home’s existing natural gas or liquid propane (LP) supply. This configuration provides a virtually inexhaustible fuel source, ensuring your furnace, well pump, and refrigeration continue to operate for days or even weeks without the logistical challenge of sourcing and storing gasoline.
Advanced Power Protection for Sensitive Electronics
Modern homes are filled with sophisticated microchips found in laptops, smart appliances, and HVAC controllers. Generac’s True Power™ Technology ensures a "clean" electrical output with less than 5% Total Harmonic Distortion (THD). This utility-grade power quality prevents the surges and fluctuations that can damage sensitive circuitry, providing the same stable electricity you expect from the grid.
Professional, Code-Compliant Installation and Safety
A standby generator is a significant mechanical and electrical addition to your property. By choosing Harold’s Heating and Cooling, you ensure that your system is installed according to strict local building codes and manufacturer specifications. We handle the complexities of gas line pressures, electrical permitting, and proper clearance requirements, providing a safe installation that protects your home’s warranty and your family’s safety.

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