Furnace Installation in Markham
A comfortable home starts with a dependable heating system. If your furnace is struggling to keep up, an upgrade is the right next step. We provide professional furnace installation in Markham, ensuring you don't have to go without heat. Our trusted, expert team helps you choose a properly sized model that fits your home and budget. Curious about the cost to install a furnace? We offer clear pricing and flexible financing to make the process straightforward.

Why Choose Mersey Heating and Air Conditioning for Your Furnace Installation in Markham?
We’re There When You Need Us—Fast!
Need furnace installation quickly in Scarborough? As local experts, we’re available seven days a week, year-round. Our in-house team handles every aspect—no outsourcing. When your home’s comfort is on the line, count on us for efficient and reliable service, no matter the season.
Expert Installation You Can Rely On
We specialize in furnace installations that not only keep your home comfortable but also help you save on energy costs. Whether you’re upgrading, replacing, or installing a new furnace, our team ensures the job is done correctly. We are licensed, insured, and carefully screened, so you can feel confident in our work.
Flexible Financing
We understand that a new furnace is a significant investment, but you don’t have to pay it all upfront. We offer flexible financing options and payment plans to help make upgrading your home’s heating system more affordable. Our team will help you choose the best financing option for your budget, with additional discounts and special warranties available.
Mersey Heating and Air Conditioning Guarantee
If your new furnace stops working within the first year after installation, we will repair it at no extra cost or offer you $1,000 for the inconvenience.
Installation slots can fill quickly during peak season. Call today to schedule furnace installation in Markham and receive your detailed quote. Stay warm with prompt, reliable service from our expert team.
Easy Furnace Installation Process
Step 1: Free Consultation & Quote
We start with a free, no-obligation consultation to assess your home’s heating requirements. Our specialists will evaluate your space and recommend the best furnace to ensure efficiency and comfort. You’ll receive a clear, upfront quote with no hidden fees, along with financing options to make the upgrade affordable.
Step 2: Removing Your Old Furnace
When you opt for our furnace installation service, we’ll carefully disconnect and remove your old furnace. Our team will ensure the gas and power are safely shut off, and we’ll dispose of your old unit in an environmentally responsible manner.
Step 3: Preparing for Installation
Before installing your new furnace, we’ll inspect your home’s setup, including ductwork, gas lines, and electrical connections. Any necessary adjustments will be made to ensure everything is in place for the new system.
Step 4: Installation & Final Testing
Once the preparations are complete, our licensed technicians will install your new furnace and confirm it’s functioning properly. We’ll perform a full test to verify airflow, heating performance, thermostat settings, and safety features like carbon monoxide detection. After installation, we’ll guide you through the system, assist with warranty registration, and provide any needed support moving forward.
Benefits of Furnace Installation in Markham by Mersey Heating and Air Conditioning
Maximum Efficiency = Lower Energy Bills
When a furnace is installed by professionals, it operates at peak efficiency, delivering consistent warmth while minimizing energy waste. Improper installation, however, can lead to frequent breakdowns and a shorter lifespan, resulting in higher repair costs and increased energy bills.
Keeps Your Home & Family Safe
Furnaces, especially gas models, involve complex systems such as gas lines, electrical components, and the potential risks of carbon monoxide. A professional installation ensures safety by mitigating fire hazards, gas leaks, and health risks, which can arise from improper installation.
Warranty Protection
To keep your furnace warranty valid, professional installation is typically required by most manufacturers. If you attempt to install the unit yourself or hire an unqualified technician, you risk voiding the warranty and could be responsible for costly repairs out of pocket.
Stay Legally Covered
Heating systems must comply with local building codes and safety regulations. Licensed technicians ensure your furnace installation meets these requirements, helping you avoid legal issues or complications with insurance coverage down the line.
Correct Sizing and Optimal Performance
An oversized furnace can cycle on and off too frequently, causing unnecessary wear and tear. Conversely, a furnace that’s too small won’t adequately heat your home. Our team performs precise load calculations to ensure your new furnace is the perfect fit, ensuring efficient operation and preventing future problems.
Frequently Asked Questions About Furnace Installation in Markham
Replacing an older furnace in Markham? Our expert team sizes your system correctly and installs it to the manufacturer's specifications. Ask for an itemized quote to understand the full cost.