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How to Compare HVAC Quotes Without Getting Burned
Ever looked at two HVAC quotes and wondered why the prices are miles apart? You’re not alone.
The truth is, not all quotes are created equal — some hide missing parts, vague labor terms, or low-grade equipment.
In this guide, we’ll show you how to compare HVAC quotes apples-to-apples, covering scope, equipment, labor, and warranties so you can make a confident decision and avoid getting burned. Calgary homeowners deserve transparency — and this is how you get it.
The $5,000 vs $12,000 Mystery
You're replacing your furnace or AC. One contractor says $5,200. Another says $11,800. Both smile and say, "Trust us, it's a good deal."
So, who's right? The truth: HVAC quotes are notoriously tricky to compare because of hidden differences in equipment, labor, scope, and warranties. But once you know what to look for, you can sort the good deals from the smoke and mirrors.
Start With Scope of Work
The biggest quote differences often come down to what's included.
Ask:
  • Will old equipment be removed and disposed of?
  • Are sheet metal modifications (plenum, return air) included?
  • Is electrical/gas work in the scope or a "subtrade extra"?
  • Are permits included in the price?
Calgary tip: City permits are required for furnace/AC installs. If they don't mention it, it's a red flag.
Equipment Grade Matters
Not all furnaces or ACs are created equal—even within the same brand.
Entry-level
Basic, single-stage, 80%–92% efficient. Cheapest upfront.
Mid-tier
Two-stage, quieter, better comfort.
Premium
Variable-speed, ultra-quiet, 96%–98% efficient.
Make sure you know exact model numbers. "High efficiency" could mean many things.
Apples-to-Apples Comparisons
Contractor A: 80,000 BTU two-stage furnace. Contractor B: 100,000 BTU single-stage furnace.
Price difference: $2,000. But they're not even quoting the same thing.
Always line up:
  • Equipment brand + model
  • BTUs/tonnage
  • Efficiency ratings (AFUE, SEER2)
  • Control/thermostat included
Labor & Install Quality
The best furnace installed badly = a bad furnace.
  • Ask if install crews are in-house or subcontracted.
  • How many years of experience do the installers have?
  • Do they do a Manual J load calculation or just guess size?
  • Do they test gas pressures, airflow, static pressure?

Red flag: If the quote is suspiciously cheap, labor may be rushed or corners cut.
Warranties—Read the Fine Print
Manufacturer warranty
Parts only, usually 10 years.
Labor warranty
Varies wildly—some 1 year, some 10.
Extended warranties
Sometimes padded into higher quotes.
Pro tip: Labor coverage matters more than parts. A "free part" still costs $900 in labor to install.
Hidden Costs & Add-Ons
Beware of quotes that balloon after install day. Common extras:
Thermostat upgrade
Duct modifications
Condensate pump
Gas line upsizing (tankless or high-eff furnaces)
Electrical breakers/disconnects
Ask for a "no-surprise" final number in writing.
Rebates, Financing & Red Flags
Rebates & Financing
  • Government rebates: Alberta Efficiency programs (when active) often cover highefficiency upgrades.
  • Manufacturer promos: Seasonal discounts on ACs and furnaces.
  • Financing: 0% for 12 months sounds great—but is it inflating the quote?
Red Flags in Quotes
  • Vague terms: "high efficiency unit" with no model number.
  • Big price difference but no explanation why.
  • Refusal to provide written details.
  • Pressure tactics: "Sign today or price goes up."
Making the Right Decision
A quote is just numbers. A company's track record is what matters.
  • Check Google reviews (look for consistent themes).
  • Ask about licenses, insurance, and WCB coverage.
  • How long have they been in business locally?
Calgary tip: Fly-by-night outfits show up heavy during heat waves and disappear by winter. Don't fall for it.
Higher efficiency costs more upfront, but may save long-term. 96% furnace vs 80% furnace: ~$500/year saved in Calgary winters. SEER2 16 AC vs SEER2 13: ~$50–$100/year saved in electricity. Calculate payback: Will you be in the home long enough to benefit?
Comparing HVAC quotes isn't about chasing the cheapest number—it's about knowing what's included, how it's installed, and who's standing behind the work. Line up scope, equipment, labor, and warranties, and you'll make a confident, moneysmart decision without getting burned.
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HVACHELP.pro is Calgary’s go-to HVAC knowledge hub — built to help homeowners make smarter, safer decisions about heating and cooling systems. We translate complex contractor jargon into clear, actionable answers, empowering you to navigate the HVAC market with confidence.
Explore Our Resources:
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