Keep your Hamilton home comfortable year-round with professional heating and cooling services. Furnace, air conditioner, heat pump installation and repair from TSSA-certified technicians.
Custom Contracting is a Carrier Factory Authorized Dealer and Lennox Premier Partner, providing Hamilton with top-tier HVAC installation and service. Our TSSA-certified technicians are factory-trained on the latest heating and cooling technology.
We install and service all major brands including Carrier, Lennox, Trane, Goodman, and Daikin. Whether you need a new high-efficiency furnace, central air conditioning, ductless mini-split, or heat pump system, we design and install complete comfort solutions.
Hamilton's climate demands reliable HVAC. Our winters see temperatures below -20°C, requiring high-efficiency furnaces that won't struggle. Summers bring humidity and heat waves where proper air conditioning is essential for health and comfort.
We also help Hamilton homeowners navigate the shift to heat pumps. With rising gas prices and climate concerns, many are switching to electric heat pump systems. Our team can assess whether a heat pump will work for your home and handle the complete conversion.
We don't just sell equipment—we engineer comfort. Every installation starts with a Manual J load calculation to properly size your system. Oversized or undersized equipment wastes energy and provides poor comfort. We also evaluate ductwork, insulation, and air sealing to ensure your new system performs optimally.
Complete heating and cooling solutions for Hamilton homes and businesses.
High-efficiency gas furnaces from Carrier, Lennox, and other top brands. We properly size, install, and commission your new furnace for optimal performance and longevity.
$3,500-$7,000 installed
Central air conditioning systems sized properly for your home. High SEER ratings for energy efficiency and quiet operation even on the hottest Hamilton days.
$3,000-$6,000 installed
All-electric heating and cooling with modern heat pump technology. Ducted or ductless options. Can work as primary or supplemental heating in Hamilton's climate.
$5,000-$15,000 installed
Fast, reliable repair for all makes and models. We diagnose accurately and fix it right the first time. 24/7 emergency service available for no-heat situations.
$150-$500 typical repairs
Endless hot water with on-demand tankless water heaters. Save energy and space compared to traditional tank heaters. Professional gas or electric installation.
$3,000-$5,000 installed
Perfect for additions, garages, or homes without ductwork. Zone heating and cooling with individual room control. Quiet, efficient, and easy to install.
$3,500-$8,000 installed
A new high-efficiency furnace in Hamilton costs $3,500-$7,000 installed, depending on size and features. This includes removal of the old unit, new furnace, any required ductwork modifications, permits, and commissioning. We offer 0% financing to make upgrades affordable.
Heat pumps work well in Hamilton, especially modern cold-climate models that operate efficiently to -25°C. They're ideal as the primary heating source with a gas furnace backup, or for homes switching to all-electric. Government rebates of $5,000+ are available through the Greener Homes program.
We recommend annual furnace maintenance before heating season (September-October). This includes cleaning, inspection, safety checks, and minor adjustments. Regular maintenance catches problems early, maintains efficiency, and can extend your furnace life by 5+ years.
Proper sizing requires a Manual J load calculation—not just matching your old unit. We measure your home, evaluate insulation, windows, and other factors to determine exact heating needs. Oversized furnaces short-cycle, wasting energy and reducing comfort.
Yes, we provide 24/7 emergency service for no-heat situations in Hamilton winters. Our on-call technicians can usually respond within 2-4 hours. Emergency calls have a premium rate, but we never leave Hamilton homeowners without heat in dangerous cold.
Yes! The Canada Greener Homes Grant offers up to $5,000 for heat pumps. Enbridge offers rebates for high-efficiency furnaces. We help you navigate available rebates and handle paperwork to maximize your savings on HVAC upgrades.
Have more HVAC questions? Contact our Hamilton HVAC experts →
Get a free HVAC estimate from Carrier-authorized experts. Financing available.