Lennox Furnace Repair Oakville
Lennox Premier Dealer servicing all Lennox residential furnaces across Oakville. From Bronte to Glen Abbey, Old Oakville to River Oaks. Same-day dispatch, $0 overtime, genuine Lennox OEM parts. We submit Lennox warranty claims directly on your behalf.
Common Lennox issues we fix in Oakville
Lennox SLP98V Signature Collection faults
The flagship modulating furnace shows error codes 11, 12, or 41 most commonly. Typical causes are flame sensor fouling, blocked intake, or rare control board reset. We carry SLP98V parts on every truck.
iComfort and S30 thermostat communication errors
Lennox iComfort and S30 smart thermostats can lose communication with the furnace control board. We re-establish the RSBus connection and replace failed cables or boards.
ECM blower module failure
Common on SLP98V, EL296, and SL280NV models around year 10 to 14. Replacement runs $620 to $920 installed including programming.
Heat exchanger inspection and recall check
Scoped heat exchanger inspection on every Lennox furnace over 8 years old. We check serial numbers against Lennox bulletins for any historical recall coverage.
Pressure switch failure on SL280 series
Pressure switch failure shows as error 4 on the Lennox SL280NV series. OEM replacement runs $245 to $345 installed.
Hot surface ignitor failure
Universal across Lennox lines, typical lifespan 6 to 10 years. Lennox OEM hot surface ignitor replacement runs $245 to $345 installed.
Lennox models we service in Oakville
We service all Lennox residential models, including pre-2000 legacy units, current production lines, and the latest A2L refrigerant equipment. Parts availability for current models is typically same-day or next-day from local Toronto distributors.
Typical Lennox pricing in Oakville
| Service | Typical range |
|---|---|
| Diagnostic visit | $129 |
| Hot surface ignitor (Lennox OEM) | $245 to $345 |
| Flame sensor cleaning or replacement | $165 to $245 |
| Pressure switch (Lennox OEM) | $245 to $345 |
| Inducer motor (Lennox OEM) | $520 to $820 |
| ECM blower module | $620 to $920 |
| Control board (Lennox OEM) | $485 to $785 |
| Modulating gas valve | $585 to $885 |
| Heat exchanger replacement | $1,900 to $3,200 |
| Same-day emergency dispatch | $0 overtime |
Pricing reflects 2026 Oakville market rates for Lennox parts and EcoFrost labour. We provide a flat-rate written quote before any work begins. No hourly billing, no surprise add-ons.
Lennox service across Oakville
We service Lennox furnaces across every Oakville neighbourhood: Bronte, Old Oakville, Glen Abbey, Iroquois Ridge, Kerr Village, River Oaks, College Park, West Oak Trails, Morrison, Clearview, Palermo, and Uptown Core. Lennox is heavily represented in Oakville's executive housing market and Lennox warranty work is handled in-house since we are a Lennox Premier Dealer.
For the full Oakville service area with all brands and services, see our main Oakville page.
Why Oakville homeowners choose EcoFrost for Lennox service
TSSA-certified
Licensed gas fitters with manufacturer training across Lennox product lines. Annual recertification.
Same-day dispatch
Most Oakville Lennox calls reached same-day. $0 overtime fees, 24/7 emergency.
Genuine OEM parts
We use genuine Lennox replacement parts on every repair to preserve manufacturer warranty.
Lennox not working? We dispatch today.
TSSA-certified, $0 overtime, same-day across Oakville.
Call (416) 835-4775Frequently Asked Questions
Got questions about HVAC services in the GTA? We've got answers.
Yes. EcoFrost is a Lennox Premier Dealer authorized to install, service, and submit warranty claims directly on all Lennox residential equipment. Our technicians complete annual Lennox certification training. Warranty parts source directly from Lennox and typically arrive same-day from the Toronto distribution centre.
Most Lennox furnace repairs in Oakville run $250 to $920 in parts and labour combined. Common repairs (ignitor, flame sensor, capacitor) run $200 to $400. Major repairs (inducer, ECM module, control board) run $620 to $920. Flat-rate written quote before any work.
Yes. The Lennox SLP98V Signature Collection modulating furnace is one of our most-serviced models across Oakville's executive housing market. We are trained on the full diagnostic procedure including iComfort thermostat communication, modulating gas valve calibration, and ECM blower programming.
Most Oakville addresses see arrival within 40 to 70 minutes during heating season. Bronte, Glen Abbey, and Old Oakville are typically fastest. River Oaks and Palermo run slightly longer. We dispatch 24/7 with no overtime surcharge.
Yes. EcoFrost is a Lennox Premier Dealer authorized for warranty service. All repairs are documented and submitted to Lennox directly when warranty applies. Using a non-authorized contractor can complicate warranty claims, which is why dealer status matters for ongoing service.
Lennox high-efficiency furnaces typically last 18 to 25 years in Oakville with annual maintenance. Mid-efficiency Merit-series units typically last 15 to 22 years. Annual tune-ups extend equipment life significantly and preserve extended warranty coverage.
Still have questions? We are here to help.