How to Choose an HVAC Company in the GTA (Without Getting Ripped Off)

How to Choose an HVAC Company in the GTA (Without Getting Ripped Off)

A woman in Brampton paid $12,000 for a furnace that should’ve cost $5,500.

She didn’t know she’d been taken until months later, when a neighbour mentioned what she’d paid for the exact same Lennox model. Same efficiency rating. Same installation scope. Nearly identical house. The difference was the company. The first one sent a smooth-talking sales guy in a polo shirt who spent 45 minutes building rapport and never once showed a price breakdown. The neighbour’s contractor emailed a line-item quote within 24 hours.

I’m Tony Marchetti. I’ve been doing HVAC work across the GTA for over 20 years now, and I hold my TSSA certification. Growing up in Woodbridge in an Italian-Canadian family, I learned early on that a handshake and a fair price are the only way to do business. I’ve seen the good contractors and the bad ones. I’ve heard the horror stories from homeowners in Oakville, Mississauga, Burlington, and everywhere in between. And I’m going to tell you exactly how to sort one from the other.

Check Their Licensing First

In Ontario, any company installing or repairing gas-fired equipment (furnaces, water heaters, gas fireplaces) must hold a valid TSSA (Technical Standards and Safety Authority) registration. This isn’t optional. It’s provincial law.

Ask for their TSSA registration number and verify it online. Takes about 30 seconds. If they hesitate or tell you they “don’t need one,” end the conversation right there. An unlicensed installation can void your manufacturer warranty, violate your home insurance policy, and create real safety hazards with gas lines and electrical connections. I’ve personally seen what happens when someone without proper certification messes up a gas connection. It’s not something you want to experience.

For air conditioning and heat pump work, contractors should hold the appropriate refrigeration licence as well. Handling refrigerant without certification is illegal under federal regulations. A quick look at their profile on the HRAI (Heating, Refrigeration and Air Conditioning Institute of Canada) confirms whether they’re in good standing.

Get Three Quotes, And Compare Them Properly

The three-quote rule exists for a reason, but most homeowners compare the wrong thing. They look at the bottom-line number and pick the cheapest one. That’s like buying a car based on the sticker price without checking what’s actually included.

Here’s what you need to compare across all three quotes.

Equipment model and efficiency. Are they quoting the same calibre of equipment? A $3,200 quote for a 14.3 SEER2 Goodman and a $5,800 quote for an 18 SEER2 Daikin are not comparable. Compare apples to apples on efficiency ratings, not just brand names.

Labour and installation scope. Does the quote include the thermostat? The disconnect switch? Disposal of the old unit? Permit fees? Concrete pad for the outdoor condenser? Every “not included” line is an add-on that inflates your final invoice.

Warranty terms. Every brand offers a manufacturer warranty on parts, typically 10 years. But labour warranty varies wildly by contractor. Some give you one year. Others offer five or ten. A system that costs $500 more but includes 10 years of labour coverage could save you thousands if something goes wrong in year six. Pay attention to that number. It matters more than most people realize.

Red Flags That Should Send You Running

High-pressure sales tactics. “This price is only good today.” “If you sign now, I can take 20% off.” Legitimate HVAC companies don’t operate like furniture liquidation stores. A real quote should be valid for at least 30 days. If someone pushes you to sign on the spot, it’s because they know you’ll find a better deal elsewhere.

No home visit before quoting. Any contractor who gives you a price over the phone without seeing your home is guessing. System sizing requires measuring your space, inspecting existing ductwork, checking electrical capacity, and evaluating your current equipment. A phone quote is a number pulled from thin air.

Cash-only or no receipt. This still happens more than you’d think. No paper trail means no warranty enforcement, no insurance coverage, and no recourse if something goes wrong. Every legitimate transaction should come with a detailed invoice listing equipment model numbers, serial numbers, warranty terms, and the contractor’s licence information.

Dramatically low quotes. If one quote lands 40% below the other two, something’s missing. Cheap equipment, no permit, unlicensed subcontractors, or corners cut on installation. Browse Reddit’s r/HVAC for an hour and you’ll find dozens of stories from homeowners who picked the cheapest bid and paid for it twice.

Green Flags: Signs You Found a Company Worth Trusting

This is where it gets personal for me, because these are the things I built my own company around. Here’s what you should be looking for.

They ask questions before quoting. How old is your current system? How many people live in the house? Which rooms are hardest to heat or cool? Any planned renovations? A contractor who asks these kinds of questions is a contractor who’s sizing the system to your actual home, not pulling a generic number off a chart.

They use their own technicians, not subcontractors. This one’s huge. When a company subcontracts the work out, they lose control over quality, timing, and accountability. At First Choice Heating & Air Conditioning, every installation and service call is handled by one of our own TSSA-licensed technicians. Never a subcontractor. Always someone we’ve trained and trust.

They have real, verifiable reviews. Read the recent ones on Google. Patterns matter more than individual ratings. If the last 20 reviews mention “on time,” “fair price,” and “explained everything,” that’s a solid signal. We’re backed by 43 Google reviews from homeowners across the GTA, and every one of them is a job done by our team.

They’re established and local. A company with a physical presence, local phone number, and years of verifiable history in the community isn’t going anywhere. They’ll be around in five years when you need warranty service. We’ve been at this for 20 years and we’re available 24/7, because heating emergencies don’t stick to business hours.

They carry strong manufacturer partnerships. Not every contractor can sell or install every brand. Being a Goodman Private Label Plus Dealer or a Rinnai Pro installer means the manufacturer has vetted the company and trusts them to represent the brand properly. We’re both, and we also carry Daikin, Amana, Lennox, Clean Comfort, Rheem, and Bradford White. These partnerships don’t happen by accident.

How to Verify Their Reputation Beyond Google

HomeStars. HomeStars is Canada’s most trusted platform for home service reviews. Verified reviews, contractor profiles, and an overall score you can actually rely on. Check their detailed feedback, not just the star rating.

BBB. Not every company is Better Business Bureau accredited, and that’s fine on its own. But if a company has unresolved complaints filed against them, that’s worth noting before you hand over your money.

Ask for references. Ask for a recent installation in a home similar to yours. A good company will connect you with a satisfied customer without hesitation. If they can’t provide one, move on.

Eight Questions to Ask Before You Sign Anything

Print these out or save them on your phone. Bring them to every quote appointment.

1. What is your TSSA registration number?
2. Can you walk me through the line-item pricing?
3. What size system are you recommending, and how did you determine that?
4. What’s included in the installation: thermostat, disconnect switch, permit, old unit disposal?
5. What are the manufacturer warranty terms? What about your labour warranty?
6. Will you pull the required municipal permit?
7. Who performs the installation: your own employees or subcontractors?
8. What’s your estimated timeline for installation?

Any contractor who can’t answer all eight clearly isn’t ready to earn your business. Natural Resources Canada says choosing a qualified contractor is just as important as choosing the right equipment. The best furnace or AC on the market underperforms if it’s installed wrong.

FAQ

How many quotes should I get for an HVAC installation?

Three is the sweet spot. It gives you enough data to spot the outliers on both ends. You don’t need five or six. By three, you’ll have a clear picture of what the job should cost and what a fair range looks like.

Is the most expensive quote always better quality?

Not even close. A high price can just as easily mean bloated overhead, aggressive sales commissions, or brand markup that doesn’t translate to better performance in your home. Compare the line items, the warranty terms, and who’s actually doing the work. That tells you more than the total.

Should I buy my own equipment online and hire someone to install it?

Generally a bad idea. Most manufacturers require installation by an authorized dealer to honour the warranty. If you buy a unit yourself and hire someone to put it in, the manufacturer may refuse warranty claims entirely. The rare exception is when your contractor agrees in writing to install customer-supplied equipment and assumes responsibility for the labour warranty.

What’s a fair labour cost for HVAC installation in Ontario?

Labour usually runs between $1,500 and $3,500 depending on complexity. A straightforward swap, old unit out and new unit in with existing ductwork and electrical, sits at the lower end. New duct runs, electrical upgrades, or tricky access push it higher.

How do I know if a company uses subcontractors?

Ask directly. It’s question number seven on the list above, and it matters. A subcontractor isn’t invested in the company’s reputation the way an employee is. If the person at your door can’t give you a straight answer, that’s your answer.

The next time a “comfort advisor” shows up at your door or an online ad promises 70% off a new furnace, check the TSSA licence number first. That 30-second search tells you more than any sales pitch ever will.

If you want a straight answer on what your home actually needs, call First Choice Heating & Air Conditioning at 905-334-7885 or request a free quote online. TSSA-certified, backed by 43 Google reviews, and serving Oakville, Mississauga, Burlington, and across the GTA for over 20 years. Every job is done by our own technicians, never subcontracted out. Available 24/7, because we know that a furnace doesn’t wait for convenient timing to break down.

About the Author: Tony Marchetti is a TSSA-certified HVAC technician with over 20 years of experience serving homeowners across the Greater Toronto Area. Born and raised in Woodbridge, Tony built his career on straightforward advice and honest pricing. He’s a Goodman Private Label Plus Dealer and Rinnai Pro installer, and he writes about HVAC topics to help Canadian homeowners avoid costly mistakes and find contractors they can actually trust.