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About · Universal A.S. Inc.

Owner-operated HVAC, built on standards.

Universal Air Systems (Universal A.S. Inc.) is owner-operated — our owner is a BSc. Certified HVAC Technician, TSSA F/S licensed, with 10+ years on the tools. Every install and service call is personally quoted and executed.

  • TSSA F/S F/S-7864-0125
  • Licensed Technician Fully Insured
  • BSc. · Certified HVAC Technician · TSSA F/S Licensed Certified Technician
  • Open 24/7 Mississauga + GTA

The business

Small shop. Senior tech. Real measurements.

Universal Air Systems has been serving homes and businesses across the GTA for more than a decade. We stay deliberately small so that every install and every service call goes through a senior licensed technician — not a junior, not a dispatcher, not a commissioned salesperson.

We install equipment you own outright. We quote fixed prices in writing before any work begins. We diagnose with real measurements — gas pressure, combustion analysis, static pressure, refrigerant — not guesses. And we answer the phone ourselves, 24/7.

  • Years on the tools

    10+

  • Service radius

    Mississauga + GTA · 2h

  • Equipment brands serviced

    All major

  • Hours

    Open 24/7

What we stand for

Four things we won't compromise on.

  • Honest scope, honest price.

    Quotes are fixed and in writing. No scope creep on the invoice. No 'we found a few extra things' after the truck leaves.

  • Senior tech, every job.

    You get the owner or a senior licensed technician — not an apprentice doing a training job on your house.

  • Same-day when it's urgent.

    No-heat and no-cool calls get priority dispatch. Most GTA-core calls are handled door-to-door in 2–4 hours.

  • Measured, not guessed.

    Every install sized with a real load calculation. Every repair diagnosed with real measurements — combustion, static pressure, airflow.

FAQ

About the business — your questions.

What sets Universal Air Systems apart from larger HVAC companies?
We're owner-operated and deliberately small. The same senior licensed technician who quotes the job does the job. No dispatchers, no commissioned salespeople, no apprentices doing training work on your house. Big shops can't promise that consistency.
How long have you been in business?
10+ years on the tools, serving the GTA. Universal A.S. Inc. is a Canadian-incorporated business, fully insured, and TSSA F/S licensed (F/S-7864-0125).
What equipment brands do you work with?
Every major HVAC manufacturer sold in Ontario — Carrier, Lennox, Trane, Goodman, Mitsubishi, Bryant, Rheem, York, and others. We stock the most common failure parts on the truck so most repairs are same-day.
Do you do commercial work or just residential?
Both. Single-family homes, offices, retail, warehouses, multi-unit buildings — the same senior tech, the same fixed-quote process. We schedule commercial work after-hours when service disruption isn't an option.
What's your service area?
Greater Toronto Area and up to 2 hours out — London, Kitchener, Barrie, Kingston, Niagara. Home base is Mississauga, with same-day response across the GTA core.

Open 24/7

Ready when you are.

Most GTA calls get same-day service. Call, text, or request a fixed quote — we'll come back with a real ETA.

Mississauga, ON · Greater Toronto Area and up to 2 hours out — London, Kitchener, Barrie, Kingston, Niagara.

(416) 258-2460 · 24/7