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Stay Cozy All Winter with a High-Efficiency Furnace

Keep your home warm, efficient, and worry-free with Go Lime’s range of energy-saving furnaces. Choose from trusted brands, flexible purchase or rental options, and expert installation across Ontario.
Furnace Installation In Ontario
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30 Day Money Back Guarantee
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Installation Included

We Are Proud to Partner With

Furnace Brands We Trust and So Do ontario Homeowners

Lennox furnaces
Lennox
Keeprite fiurnaces
Keeprite
Goodman Furnaces
Goodman
Trane Furnaces
Trane
RunTru Furnaces
RunTru
Navien Tankless water heaters
Navien
Limited Time Offer
Limited Time Offer
Lennox furnaces Lennox
Limited Time Offer
Limited Time Offer
Keeprite fiurnaces Keeprite
Goodman Furnaces Goodman
Trane Furnaces Trane
RunTru Furnaces RunTru
Navien Tankless water heaters Navien

Not Sure Which Furnace Is Right For Your Home?

Read our complete Furnace Buying Guide to compare efficiency ratings, furnace types, sizing tips,

and Ontario rebates before you decide.

👉Explore the Furnace Buying Guide

furnace installation Ontario

Why Homeowners Choose Go Lime for Furnaces

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Top Furnace Brands, Trusted by Pros

We carry only high-performance models from Lennox, Keeprite, Goodman, Trane, and more — systems proven to perform in Ontario’s toughest winters.

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Award-Winning Lennox Partner

Recognized as a top-selling Lennox partner, we’re trusted by the brand and backed by experience.

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Transparent Pricing with Installation Included

No hidden fees, ever. Every quote includes full install and support so you know exactly what you’re paying for.

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Expert Guidance, Zero Pressure

Whether you're replacing or upgrading, our team helps you find the right furnace for your home, without the sales pitch.

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Long-Term Protection & Warranty Support

All our furnaces are backed by manufacturer warranties — and supported by Go Lime long after install day.

Soft Flex, Big Proof.

Join Thousands of Happy Ontario Homeowners

4.8 out of 5 based on 6,200+ reviews

Top rated Hvac contractor Ontario
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Latest Furnace Guides & Tips

How to Extend the Life of Your Furnace with Regular Maintenance

How to Extend the Life of Your Furnace with Regular Maintenance

A furnace is one of the hardest-working systems in your home. In Ontario, it can run for six to e...
What’s the Difference Between a Furnace and a Boiler?

What’s the Difference Between a Furnace and a Boiler?

When homeowners talk about heating systems, the terms furnace and boiler are often used as if the...
Advantages and Disadvantages of a Two-Stage Furnace

Advantages and Disadvantages of a Two-Stage Furnace

Choosing the right furnace isn’t just about brand or price anymore. Many Ontario homeowners now f...

Frequently Asked Questions

View All FAQs

Frequently Asked Questions

Does my monthly price ever go up?

Our pricing isn’t a flashy promotional rate - it’s fair and transparent from the start. Over time, there may be minor adjustments to ensure you continue receiving top-notch service. But don’t worry - we’re talking about just a dollar or two per year at most. No surprises, just straightforward savings. Plus, you can purchase the equipment at any time, giving you ultimate savings and flexibility.

What happens if I move?

Moving? No problem. Our Go Flex plan is fully transferable to the next homeowner, allowing them to seamlessly pick up where you left off. Just let us know 30 days before your move, and we’ll handle the rest. We’re here to make your move hassle-free, just the way it should be.

What is the warranty with my purchase?

With the Go Flex Program, you’re 100% covered—24/7/365—for both parts and labour, including annual maintenance. If you choose to purchase the equipment, you’ll receive the standard manufacturer’s warranty. Start with the Go Flex Program to enjoy all the benefits we offer, and when you’re ready, you can purchase the equipment at your convenience.

How long have you been in business?

Go Lime has been keeping homes comfortable since 2011. With over 150,000 customers across Ontario, we’ve spent more than a decade earning the trust of homeowners just like you. Partnering with trusted names like Enbridge, Home Depot, and Walmart, you can count on the Go Lime team to take care of your family.

Is Go Flex a rental, and what is the term?

Go Flex isn’t a never-ending rental contract. It’s a game-changer: an industry-first flexible 180-month subscription with an anytime purchase option. Here’s how it works: 50% of your monthly payment reduces your purchase price, while the other 50% covers 24/7 service, annual maintenance, and unlimited parts and labour coverage. You get all the perks of ownership without the headaches—and the flexibility to purchase the equipment at any time.

What type of furnace is best for my home?  

The most common furnace types are gas, electric, and oil. In Ontario, high-efficiency natural gas furnaces are the most popular due to lower operating costs and reliable performance in cold weather. The right option depends on your home’s size, insulation, and energy source availability.

What does AFUE mean and why does it matter?  

AFUE stands for Annual Fuel Utilization Efficiency. It measures how efficiently a furnace converts fuel into heat. A 95% AFUE furnace, for example, turns 95% of fuel into heat and wastes only 5%. Higher AFUE means lower heating bills and less energy waste.

How long do furnaces typically last?  

Most furnaces last between 15 and 20 years. Regular maintenance, like annual servicing and filter changes, can help maximize lifespan and prevent unexpected breakdowns. Not sure how often to change your filter? Check out our blog on How Often Should You Change Your Furnace Filter? for expert guidance.

How do I know what furnace size I need?  

Furnace size is measured in BTUs (British Thermal Units). The correct size depends on the square footage of your home, ceiling height, insulation, and climate zone. Oversized or undersized units can lead to poor efficiency and uneven heating. For a full breakdown, see our guide on How to Choose the Right Furnace Size Based on BTUs and AFUE. We also offer expert sizing assessments to help you select the right model for your space.

What’s the difference between a single-stage and a two-stage furnace?  

Single-stage furnaces run at full power whenever they're on. Two-stage furnaces, on the other hand, operate at a lower speed most of the time—only ramping up during extreme cold. This results in better comfort, quieter performance, and improved efficiency.
Want to know which is right for your home? Read our blog: Should You Choose a Single Stage or Two Stage Furnace for Your Home?

Easy To Switch,
So Much To Save.

Easy To Switch, So Much To Save.

Know The Cost Before You Commit.

Online HVAC Contractors Ontario

No Pushy Sales, Just Expert Advice.

Same-day Installs By Licensed Pros.

Why Go Lime Is Ontario’s
First Choice For Home Comfort

Flexible Payment Options

Easily manage your costs with affordable monthly plans designed for predictability.

Clear, Honest Pricing

Know your total upfront. No hidden fees, just transparent pricing every time.

Easy Online Ordering

1.Pick your furnace.
2.Choose your preferred payment option.
3.Complete checkout easily online.

Peace-of-Mind Warranty

Comprehensive coverage for parts, labour, and replacements—your protection guaranteed.

Proudly Canadian

Locally owned, Ontario-focused, built specifically for Canadian homeowners.

Flexible Payment Options

Easily manage your costs with affordable monthly plans designed for predictability.

Clear, Honest Pricing

Clear, Honest Pricing

Know your total upfront. No hidden fees, just transparent pricing every time.

Easy Online Ordering

Easy Online Ordering

1.Pick your furnace.
2.Choose your preferred payment option.
3.Complete checkout easily online.

Peace-of-Mind Warranty

Peace-of-Mind Warranty

Comprehensive coverage for parts, labour, and replacements—your protection guaranteed.

Proudly Canadian

Proudly Canadian

Locally owned, Ontario-focused, built specifically for Canadian homeowners.

Go Protect HVAC Protection Plans for Ontario Homeowners
Go Protect HVAC Protection Plans for Ontario homeowners
Go Protect by Go Lime

Repairs Happen. Go Protect Keeps You Covered.

Protect your furnace with coverage that ensures peace of mind. Go Protect has got you covered for repairs or replacements, so you can focus on what matters.

Go Flex - Flexible Subscription option by Go Lime

Flex Your Budget With Go Flex

Enjoy comfort on your terms with Go Flex- our flexible payment option that lets you spread out the cost of your equipment and service. No large upfront payments, no surprises, just predictable monthly plans that work with your budget.

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Go Lime support green

We Plant Goodness

Every order supports reforestation. For each purchase made, we plant a tree because real change starts with simple actions. Place an order, and we’ll plant a tree on your behalf.

Call Go Lime
Need Quick Answers?

Call us at +1 877-747-8292, and we'll make your home comfort journey effortless.

Call us at +1 877-747-8292.

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Questions? Email us at askexperts@golime.com and we'll get back to you fast - no hassle, just answers.

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Need quick answers? Call us at

+1 877-747-8292, and we'll make your home comfort journey effortless.

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For immediate assistance, reach out to us. Our team is ready to help you with any questions or concerns.

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