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HVAC services in Oakville two-storey family home
Assurance HVAC Oakville

Trusted HVAC services in Oakville

Assurance HVAC delivers HVAC services in Oakville from Old Oakville and Bronte to Glen Abbey, Joshua Creek and West Oak Trails. Our work covers furnaces, air conditioners, heat pumps and water heaters, plus the hydronic systems some older homes depend on, from boiler repair to radiant floors. TSSA-certified gas technicians and 313A-certified AC mechanics do the work, at a flat rate you approve first.

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Key takeaways

  • HVAC services in Oakville for furnaces, boilers, AC, heat pumps and water heaters.
  • Licensed for both trades: TSSA for gas, 313A for air conditioning, plus WSIB and insurance.
  • Homes with two or more systems get every unit serviced in one visit.
  • You see and approve one flat price for the whole job before anything begins.
  • Call or send a request any time; emergencies are answered 24/7.

Last updated . Written and reviewed by the Assurance HVAC service team.

On this page
  1. Furnace repair in Oakville, including multi-furnace homes
  2. AC repair in Oakville, from one condenser to several
  3. Heat pump installation in Oakville, including homes with boilers
  4. HVAC services in Oakville for boilers, radiant floors, hot water and air
  5. Emergency HVAC repair in Oakville: first steps when something fails
  6. Heating and cooling in Oakville, from the lake to north of Dundas
  7. HVAC services in Oakville: common faults in older and newer homes
  8. Repair or replace: what makes sense for your home?
  9. What affects the cost of HVAC work in Oakville?
  10. HVAC services in Oakville for every system, every season
  11. Neighbourhoods we serve in Oakville
  12. HVAC questions from Oakville homeowners

Furnace repair in Oakville, including multi-furnace homes

Our furnace repairs range from a single furnace in a 1970s College Park home to the two furnaces some larger Joshua Creek homes run, one per floor. TSSA-certified gas technicians test ignition, flame sensing, the inducer, pressure switches, the control board and the blower, then quote a flat price before starting.

In a multi-furnace home, a fault often shows up as one floor going cold while the rest of the house is fine. We check both systems and their thermostats, since a zoning or wiring fault can look like a furnace failure.

Furnace installation in Oakville starts with a room-by-room heat-loss calculation. Original builder furnaces were often sized by rule of thumb, so a correctly sized modulating furnace with an ECM blower can run longer, quieter cycles and hold the temperature closer to the setpoint.

AC repair in Oakville, from one condenser to several

Most cooling breakdowns start at the outdoor unit, where capacitors, contactors and fan motors are the usual suspects, followed by refrigerant leaks and clogged drains. A 313A-certified mechanic tests the system under load, finds any leak before adding refrigerant, and gives you a flat price before the repair begins.

Big homes often have two air conditioners, one for the main floor and one for the bedrooms. When the upstairs unit struggles on hot afternoons, the cause is usually airflow, a dirty coil or a low charge rather than size.

Air conditioner installation in Oakville begins with a cooling load calculation; we also check the line set and indoor coil, and match the condenser to the furnace or air handler. Older units may still run on R-22, now out of production, so a heat pump is worth pricing when one of those fails.

Heat pump installation in Oakville, including homes with boilers

Heat pumps suit two very different kinds of home. In newer houses with ductwork, a cold-climate heat pump replaces the central air conditioner and shares the heating with the gas furnace. In older boiler-heated homes near the lake, ductless mini-splits add efficient cooling and shoulder-season heating without any new ductwork.

In a dual-fuel setup the heat pump carries most of the heating and the furnace takes the coldest days. We size it for January, not October, and compare HSPF2 and SEER2 ratings with you.

In a boiler home, the radiators or radiant floors stay in charge of winter heat while the heat pump handles cooling and the milder months.

Eligible heat pumps can earn rebates under the Home Renovation Savings Program, which Save on Energy and Enbridge Gas run together. How much a home can receive depends on the house and its current heating fuel, and we confirm eligibility first. Our heat pump installation page and rebates guide explain more.

HVAC services in Oakville for boilers, radiant floors, hot water and air

Boilers and radiant heat matter here. Some older homes in Old Oakville and Bronte still heat with radiators, and some large custom homes run zoned in-floor radiant heat. We service and replace both, along with water heaters of every type and the equipment that keeps indoor air comfortable.

Boilers, radiators and in-floor heat

We repair circulator pumps, zone and mixing valves, expansion tanks and controls, and replace aging cast iron boilers with condensing or combi models. These work with most existing radiators, and we check piping and venting before quoting.

Water heaters for bigger households

Homes with several bathrooms can outrun a standard tank. A tankless unit, or a combi boiler that heats both the house and the taps, keeps up with back-to-back showers if the gas supply allows. Tanks last about 8 to 12 years, tankless units about 20 with yearly descaling.

Indoor air quality

Big rooms with high ceilings dry out quickly in January. A furnace-mounted humidifier with humidistat control, better filtration and an HRV or ERV in a tight newer home keep every zone comfortable.

Emergency HVAC repair in Oakville: first steps when something fails

When something fails, our HVAC services in Oakville include 24/7 answering for no-heat and no-cooling emergencies, and those calls go to the front of the line. Safety comes first if you smell gas or a CO alarm sounds, and a few quick checks can sometimes solve the problem before we arrive.

  • If you smell gas: get everyone out, leave switches alone, and phone Enbridge Gas at 1-866-763-5427 once you’re outside. Their gas safety page (opens in a new tab) explains what happens next.
  • If a carbon monoxide alarm sounds: leave and call 911. CO alarms are required in Ontario homes with fuel-burning appliances.
  • If the furnace gives no heat: check the thermostat mode and setting, the furnace power switch, the breaker and the filter.
  • If the radiators go cold: look at the boiler’s pressure gauge. A reading in the red, or water from the relief valve, means call us now.
  • If the AC stops cooling: check the breaker and filter, and if the lines are iced, switch it off to protect the compressor.

Heating and cooling in Oakville, from the lake to north of Dundas

Oakville’s houses cover a wide range. Near the lake, the old town, Bronte and Eastlake include older and heritage homes, some still on boilers, while Glen Abbey, River Oaks, West Oak Trails and Joshua Creek are mostly 1980s to 2000s subdivisions of big two-storey houses, most with finished basements.

Parts of the old town are heritage districts, and the Town of Oakville (opens in a new tab) can tell you whether a new condenser, vent or wall unit visible from the street needs approval.

College Park, Falgarwood and Iroquois Ridge date mostly from the 1960s through the 80s, and many homes there have replaced the furnace once or twice but kept the original ducts. Morrison and Eastlake have large estate homes, often with several systems and zoned radiant floors.

Bronte Creek, Palermo and the newer neighbourhoods north of Dundas Street usually have high-efficiency furnaces and HRVs from the start.

HVAC services in Oakville: common faults in older and newer homes

The problems we see tend to split along the age of the house: radiators that won’t heat evenly in older lakeside homes, zoning and multi-system faults in large newer homes, and ordinary furnace and AC wear in between. Each is diagnosed, explained and priced flat before work starts.

  • Cold radiators: trapped air, a failed circulator pump or a stuck zone valve leaves rooms cold at the top or all over.
  • Boiler pressure problems: a waterlogged expansion tank or failing fill valve pushes pressure too high or too low.
  • One zone not heating: a bad zone valve, damper motor or thermostat often looks like an equipment failure.
  • Upstairs AC can’t keep up: a dirty coil, low refrigerant or poor airflow on the second-floor unit.
  • Short cycling: an oversized furnace, a dirty flame sensor or a clogged filter makes the burner start and stop too often.
  • Condensate leaks: a clogged drain or failed condensate pump can damage a finished basement.

Repair or replace: what makes sense for your home?

Repairing makes sense early in a system’s typical lifespan, when the fault is limited to one part. Replacing makes sense near the end of that lifespan, after a major failure such as a cracked heat exchanger or dead compressor, or when repairs have become a yearly event. You get both prices.

Typical service life, and when we’d suggest replacing
SystemTypical lifespanWhen replacing makes sense
Gas furnace15 to 20 yearsA failed heat exchanger, or a costly part on a unit near 20
Central air conditioner12 to 15 yearsCompressor or coil failure, or an R-22 leak
Heat pumpAbout 15 yearsMajor compressor or refrigerant repairs past 10 years
Tank water heater8 to 12 yearsA leaking tank, which can’t be repaired
Tankless water heaterAbout 20 yearsHeat exchanger leaks or repeated ignition faults

In multi-system homes, the units often went in together and age together. We can stagger replacements, one system now and the next when it’s due, so you aren’t replacing everything at once.

What affects the cost of HVAC work in Oakville?

What you pay depends on how many systems and zones the home has, the equipment and efficiency you choose, the size of the house, and any venting, piping or electrical work. We look at the house before quoting and give you one flat-rate price for the whole job.

What drives the price of heating and cooling work
FactorWhy it matters
Systems and zonesTwo furnaces, two ACs or zoned radiant heat mean more equipment and controls.
Equipment and efficiencyModulating, variable-speed and condensing equipment costs more to buy but less to operate.
Hydronic pipingA boiler swap can mean updating near-boiler piping, pumps and controls.
Venting routeMoving off an old chimney, or venting through a stone or brick wall, adds work.
Access and heritageFinished basements, tight older mechanical rooms and heritage rules take more time.

However many systems are involved, our HVAC services in Oakville come with one flat-rate price before work starts. Choosing an HVAC contractor in Oakville? Ask who does the gas work, whether a 313A-certified mechanic handles cooling, and whether the warranty is written.

HVAC services in Oakville for every system, every season

HVAC maintenance in Oakville means a heating check in the fall and a cooling check in the spring, covering every furnace, boiler and air conditioner in one visit. Our maintenance plan includes two tune-ups a year and priority booking, so no unit gets skipped because it sits in a separate mechanical room.

Furnace visits cover the burners, flame sensor, heat exchanger and safety controls. Boiler visits test the relief valve and expansion tank and check combustion and venting. Cooling visits wash the outdoor coil, measure refrigerant pressures and flush the drain. See the details of our maintenance plan.

HVAC services in Oakville keep this family comfortable at home
Why Assurance

Why Oakville homeowners choose Assurance HVAC

The same four guarantees on every visit in Oakville, big job or small.

  • A price before we start

    After the diagnosis you get a flat-rate price for the job. Nothing is done until you say yes, and the price doesn’t change halfway through.

  • Licensed technicians only

    Gas work is done by TSSA-certified gas technicians and air conditioning by 313A-certified mechanics. No unlicensed helpers working alone in your home.

  • A real arrival window

    We confirm a two-hour window when we book and text you when the technician is on the way, so you’re not waiting around all day.

  • Our work, in writing

    Every repair and installation comes with a written workmanship warranty. If something we fixed doesn’t hold, we come back and make it right.

How it works

How HVAC service in Oakville works

  1. Tell us what’s going on

    Send the request form or call. It takes about a minute, and you can add details like noises, error codes or the age of the unit.

  2. We call to confirm a time

    A real person calls you back, asks a few questions and books your arrival window. No-heat and no-cooling calls go to the front of the line.

  3. Diagnose, price, fix

    The technician finds the fault and gives you a flat price. Approve it and the work gets done, usually that visit when the part is on the truck.

Service area

Neighbourhoods we serve in Oakville

  • Old Oakville
  • Bronte
  • Glen Abbey
  • Joshua Creek
  • River Oaks
  • West Oak Trails
  • Bronte Creek
  • Iroquois Ridge
  • College Park
  • Eastlake
  • Falgarwood
  • Morrison
  • Palermo

Find our HVAC contractor in Oakville listing on Google Maps (opens in a new tab) listing on Google Maps. Street not listed? Send your postal code with the request and we’ll confirm when we call.

FAQ

HVAC questions from Oakville homeowners

Our home has two furnaces and two air conditioners. Can you service them together?

Yes. We service multi-system homes in one visit, checking each furnace, air conditioner and thermostat, plus any boiler, humidifier or HRV. The maintenance plan can cover every unit, so they’re all tuned up before each season with one appointment instead of several.

Do you work on in-floor radiant heating?

Yes. We service and repair the boilers, circulator pumps, mixing valves, manifolds and zone controls behind radiant floors and radiators. If a zone stays cold or heats unevenly, we check water temperature, flow and controls before replacing anything, and price the fix first.

Can you add air conditioning to an older home with a boiler?

Yes. Ductless mini-split heat pumps are usually the best fit, since they need no ductwork and leave your radiators or radiant floors untouched. Each room or zone gets its own indoor unit and control, and the system also adds efficient heating in spring and fall.

Can you work on a heritage home in Old Oakville?

Yes. We plan around tight basements, plaster walls and existing radiators, and choose venting routes and outdoor unit locations with the streetscape in mind. If the house is in a heritage district, check with the town before any exterior change, and we’ll adjust the plan to fit what’s approved.

Why does one zone of our house never get warm?

In zoned homes, a cold area usually comes down to a failed zone valve or damper motor, a thermostat or wiring fault, or a circulator that isn’t moving enough water. We test the controls and equipment together, so you don’t replace a furnace or boiler that’s working fine.

Is a cold-climate heat pump enough for a large Oakville home?

It can carry most of the heating through most winters, but in large homes we often keep the existing furnace as dual-fuel backup for the coldest days. A room-by-room load calculation shows how much of the year a heat pump can cover alone, and we price both options.

Can we get heat pump rebates in Oakville?

Yes, if the home and system qualify. Homeowners here can apply to the Home Renovation Savings Program from Save on Energy and Enbridge Gas, which covers eligible heat pumps. The rebate depends on the home and how it’s heated now, so we confirm you qualify before you commit.

Do you service newer homes north of Dundas?

Yes. Newer homes in Palermo, Bronte Creek and the subdivisions north of Dundas usually have a high-efficiency furnace, a central AC or heat pump and an HRV. Yearly service keeps them efficient, and many manufacturers require it to keep the warranty valid.

Book a visit

Need HVAC service in Oakville? We’ll call you back to book.

Send the form or call. You’ll get a confirmed arrival window and a price before any work starts.

(416) 555-0142

No-heat and no-cooling emergencies answered 24/7

Request a technician

Tell us what’s going on. We’ll call to confirm a time.

What do you need?
How soon? Optional
Add an email or detailsOptional

Or call (416) 555-0142Used only to book your visit. Privacy