How to negotiate a furnace price, fairly

Start by matching scope, not by haggling

Most of the savings on a new furnace come from buying the right scope, not from squeezing the installer. Before you ask anyone for a lower price, line your quotes up in the quote comparison worksheet and run each through the quote checker. You will often find the “expensive” quote includes things the cheaper one left out, or uses a higher tier.

Once the scope matches, you have a fair, specific question: “Quote B has the same two-stage furnace and the permit for less. Can you get closer?” That beats a vague request for a discount. With only one quote, check it against what fair furnace quotes cost in Ontario first; see how many quotes to get and the rest of the Quote Guide.

Timing: the lever that costs nobody anything

Heating companies are busiest from October to January. Crews are booked out, no-heat calls jump the queue and there is little reason to sharpen a price. In spring and early fall, schedules have gaps, and a flexible homeowner is a welcome customer.

Where there is room in a furnace quote

A fair company can move on these lines without cutting a corner:

• Equipment tier

  Installed, a single-stage furnace is usually $4,000 to $6,500, a two-stage $5,500 to $8,000 and a modulating one $7,000 to $11,000. If a quote leads with the top tier, ask for the price one step down.

• Brand and model

  Most companies carry more than one product line. Ask for a comparable model, and compare efficiency, stages, blower and warranty rather than the logo.

• Thermostat

  A new thermostat typically adds $150 to $600. If yours works with the new furnace, ask for the price without one.

• Optional extras

  UV lights, air cleaners, humidifiers, duct cleaning and service plans can have value, but they are optional. Ask for each as its own line so you can say yes or no.

• Bundling the furnace and AC

  If your AC is old too, one visit for both saves duplicated work. See the numbers below.

• Install date and price hold

  Flexibility on timing, and a price held for a later install, cost a company little and are worth asking for.

Bundling a furnace and AC: the numbers

The “together” range spans both furnace tiers, so it overlaps the separate totals. Compare the same equipment: a matched pair installed in one visit should come in at or under the two separate prices added up, with one crew trip, one permit and the AC coil that sits on the furnace fitted once. If your AC is getting old, ask for both prices. Our furnace and AC quote page covers what the combined quote should include.

Where there is no room, and where cutting costs more

Some lines look like easy savings and are not. A cheaper quote that skips them is not a better price. It is a different, worse job.

A furnace sized by guesswork, vented badly or left unregistered can cost more over its life than any discount saves. No discount changes the rule that gas work in Ontario needs a TSSA-registered contractor. Our load calculation guide explains why sizing is never the place to save.

Ask for itemised pricing

Many companies quote one package price. That works for comparing totals, but it makes negotiating hard: you cannot say no to a line you cannot see. Ask for the quote broken out like this:

Some companies will not split labour from equipment. As long as the scope is listed line by line, you can still ask: what does it cost without this item?

Cash, financing and rental: compare the total

How you pay can change the real price more than any line item.

• Paying outright

  Pay by a traceable method and get a written invoice that shows HST and the company's details. Skip any “cash, no receipt” deal: you lose your proof for the warranty and for any dispute.

• Financing

  Ask for the cash and financed prices side by side, plus the rate, term and total cost of borrowing. A “0%” offer can cost more if the equipment price is higher to cover it.

• Renting

  Furnace rental plans in Ontario usually cost $40 to $80 a month on 10 to 15 year terms. Over a full term that adds up to $4,800 to $14,400 before any yearly increases, compared with $4,000 to $6,500 to buy a typical single-stage furnace outright. Rentals often include repairs and maintenance, which is part of what you pay for.

Rental buyouts are where the traps hide. If you rent now, get the buyout amount and any removal or early-end charges before you sign for a new furnace. For a new rental, ask for the buyout amount in every year of the term and whether the rate rises yearly. Ontario's rules for home contracts on furnaces, air conditioners and water heaters require the overall cost and any cancellation fees in writing (Ontario's guide to home service contracts). Our financing vs renting guide works through the totals.

A promised rebate is not a discount either. If a quote only works “after the rebate”, check the program yourself first.

A typical example

Here is how this plays out. The companies and figures are illustrative and sit inside the typical ranges above.

A homeowner with a working but 18-year-old furnace gets two quotes in early fall for a two-stage, 96% AFUE furnace:

1. 1

   Match the scope

   Quote 2 does not list a permit. The homeowner asks, and it adds $150. Quote 2 is now $7,250.

2. 2

   Remove what is not needed

   The installer confirms the existing thermostat works with the new furnace, so the homeowner asks for Quote 1 without the new one. Quote 1 is now $7,400.

3. 3

   Ask one specific question

   The gap has shrunk from $800 to $150. The homeowner asks Company 1: “With the same scope, Quote 2 is $7,250. Can you match it if I take an install date in your next quiet week?”

4. 4

   Decide on more than price

   Whatever the answer, the homeowner is now choosing between two fair, matched quotes on labour warranty, install date and how each company handled the questions.

Notice what did not happen: nobody asked to skip the heat loss calculation, the venting or the permit. The savings came from scope and timing, which is where fair savings usually are.

How to say no politely

You will turn down at least one company, and maybe an upsell or two. A short, clear answer works best; you owe no one a long explanation.

If a company answers with a price that expires tonight, treat that as information about the company. Fair prices rarely vanish overnight. And if you sign at home after inviting the company in, Ontario gives you a 10-day cooling-off period for furnaces, air conditioners and water heaters, from the day you receive a written copy of the contract.