Heating · Toronto & GTA

Home & building heating
across Toronto & the GTA

Furnaces, boilers, heat pumps, water heaters, fireplaces and radiant floors — the whole heating side of the house, from one licensed team working out of North York.

Book a heating consultation Call 647 953-4252

TSSA-licensed gas technicians

Furnace, boiler & heat pump specialists

Written quotes before any work

North York home base · GTA-wide

1,000+

Clients served

TSSA

Certified team

7 days

A week support

GTA-wide

Service coverage

20+ yrs

Climate experience

Heating services overview

One team for every heating system in your home or building

Heating in this city is judged on about fifteen days a year. A system can run quietly from October to December and still leave you cold on the morning it drops below −20°C, because that is the day the sizing, the ductwork and the venting all get tested at once.

That is why we start with the building rather than the equipment. Where the heat is going, whether the ducts can carry what the furnace produces, what the gas line and the electrical panel can support — those decide what belongs in your basement more than the badge on the front does.

This page is the way in. Each system below has its own page with the detail, and if you are not sure which one you are looking at, describe the symptom and we will tell you which it is.

What matters most for heating services in the GTA
Right sizing, licensed gas/refrigeration work, and commissioning beat the cheapest sticker price. We verify airflow, safety devices, condensate paths, and controls so your system does not fail the first extreme week of the season. Ask us about dual-fuel, zoning, and rebate-eligible models during your quote.

Rebates on high-efficiency heating upgrades

Furnaces, boilers, heat pumps, and smart controls may qualify for Enbridge Gas, federal, or provincial incentives. We flag eligible equipment during your quote — see current GTA rebate programs.

Heating roadmap

How we approach whole-home heating in Toronto

One team for furnaces, boilers, heat pumps, radiant, and complementary systems.

Fuel & load

Gas, electric, hybrid

System map

What you have today

Comfort goals

Even rooms, lower bills

Option set

Repair or redesign

Install plan

Timeline & access

Tune & teach

Thermostats & filters

Heating categories

Explore our heating services

Start with the system you have — or the upgrade you are considering. Each page covers symptoms, options, timelines, and how we work in GTA homes and light commercial spaces.

Furnaces

Gas furnace repair, safety checks, and high-efficiency replacements sized for Toronto ductwork and winter loads.

Furnace repair & replacement →

Boilers

Hydronic boiler service, circulator and zone repairs, and condensing boiler upgrades for radiators or in-floor heat.

Boiler repair & replacement →

Heat pumps

Cold-climate ducted and ductless heat pumps that heat and cool — selected for real GTA design days, not brochure climates.

Heat pump services →

Water heaters

Tank, tankless, and hybrid water heater repair and replacement with proper venting and gas code compliance.

Water heater services →

Gas fireplaces & outdoor heat

Indoor gas fireplace installs and service, plus patio heaters and outdoor comfort systems for Toronto winters.

Gas fireplaces →

Radiant floor heating

In-slab and under-floor radiant design, boiler integration, and controls for even heat without noisy ducts.

Radiant floor heating →

Before the cold snap

A tune-up now costs less than a call-out in January

Most no-heat emergencies we attend were avoidable. A seasonal service catches the parts that fail under load.

Book a heating service

Why Toronto Air Systems

Why homeowners call us for heating first

Heating failures in January are not the time to learn your contractor is unlicensed or quoting mystery parts. We show up prepared, document the issue, and fix or replace with equipment that matches your building.

TSSA-licensed technicians

Every technician who works on your equipment holds current Ontario gas and/or refrigeration credentials — no uncertified subcontractors.

Built for Toronto winters & summers

We size and install equipment for real GTA climate extremes, not brochure averages from milder markets.

Transparent pricing

Detailed written quotes with equipment specs, labour, and warranty terms. No bait-and-switch or surprise change orders.

Multi-brand expertise

We service and install major HVAC brands, so recommendations fit your home — not a single manufacturer quota.

How it works

How a heating project works with us

From a no-heat emergency to a planned furnace or heat pump upgrade, the path is the same: diagnose clearly, price in writing, then execute to code.

Consultation

Tell us about your home or building, symptoms, and goals — by phone or online form.

On-site assessment

A licensed technician evaluates your existing heating system, ductwork, and load requirements.

Written quote

You receive clear options, pricing, timelines, and rebate notes — no vague estimates.

Installation or repair

Our TSSA-licensed team completes the work to code with minimal disruption.

Follow-up support

We walk you through operation, warranty, and ongoing maintenance recommendations.

Brands we work with

Heating brands we install & service

We are not locked to one manufacturer. Recommendations follow your ducts, fuel type, and budget — then we install and service what we sell.

Where we work

Heating service across Toronto & the GTA

Based in North York, our technicians cover Toronto neighbourhoods and surrounding cities for residential and light commercial heating work.

Toronto

All neighbourhoods & districts

North York

Our home base

Mississauga

West GTA residential & commercial

Brampton

Full HVAC coverage

Vaughan

Including Woodbridge & Concord

Markham

East GTA homes & businesses

Richmond Hill

Residential & mixed-use

Scarborough

East Toronto

Etobicoke

West Toronto

Oakville

Halton Region

Pickering & Ajax

Durham Region

Whitby & Oshawa

East GTA

Client reviews

What GTA clients say about our heating work

Furnace quit on a −18° night. Toronto Air Systems diagnosed a failed inducer, had the part next day, and left the system quieter than before. Clear invoice, no upsell games.

Daniel K.

North York homeowner

They walked us through furnace vs heat pump for our 1970s bungalow with honest numbers. We went hybrid and the winter bills dropped without sacrificing comfort.

Priya & Mark S.

Etobicoke

Boiler zones were fighting each other for years. Their tech balanced the loops, replaced two valves, and finally got even heat on every floor.

Helen R.

Forest Hill

FAQ

Heating FAQ — Toronto & GTA

What heating systems does Toronto Air Systems service?

We service and install gas furnaces, hydronic boilers, cold-climate heat pumps (ducted and ductless), water heaters, gas fireplaces, outdoor heating, and radiant floor systems. Start on this page and drill into the specific service that matches your equipment.

Should I repair or replace my furnace in Toronto?

If the unit is under ~12–15 years, has a clean safety record, and the repair is a single failed component, repair is often smarter. Aging heat exchangers, repeated no-heat calls, or AFUE well below current standards usually favour replacement. We give both options with costs before you decide.

Are heat pumps reliable for Toronto winters?

Modern cold-climate heat pumps maintain useful heat output well below freezing when sized correctly. Many GTA homes use a heat pump as primary heat with gas backup, or a dual-fuel setup. We design for Toronto design temperatures — not mild-climate marketing charts. See our heat pump page for details.

Do you offer emergency heating repair in the GTA?

Yes. Call 647 953-4252 for no-heat and unsafe-operation issues. We prioritize carbon monoxide alarms, cracked heat exchangers, and complete heating failures — especially during cold snaps.

What does a heating consultation include?

We review your existing equipment, venting, ducts or piping, comfort complaints, and goals. You receive a written quote with equipment options, labour, timeline, and any rebate notes. There is no obligation to proceed.

Are your technicians TSSA licensed?

Yes. Gas appliance work is performed by TSSA-licensed technicians. Refrigeration work on heat pumps is handled by properly certified refrigeration mechanics. We do not subcontract unlicensed labour onto your job.

Which areas do you cover for heating service?

We serve Toronto (including North York, Scarborough, Etobicoke), Mississauga, Brampton, Vaughan, Markham, Richmond Hill, Oakville, and neighbouring GTA communities. If you are unsure, call and we will confirm coverage for your address.

How much does heating services cost in Toronto?

Cost depends on equipment capacity, brand, duct or piping complexity, electrical/gas upgrades, and whether you repair or replace. We provide written quotes after a site assessment so you can compare options fairly. Call 647 953-4252 for a visit.

Do you serve my area in the GTA?

Yes. We are based in North York at 132 Cartwright Ave and regularly serve Toronto, Mississauga, Vaughan, Markham, Scarborough, Etobicoke, Brampton, and nearby communities.

Are your technicians licensed?

Yes. Gas and refrigeration work is performed by TSSA-licensed technicians. We follow Ontario code practice for venting, refrigerant handling, electrical disconnects, and condensate management.

Ready for reliable heat this winter?

Tell us about your furnace, boiler, or heat pump — or book a whole-home heating assessment. Call 647 953-4252 or send a request online.