Montréal Combustion Logo

Lennox: Rooftops and Commercial Furnaces | Montréal Combustion

Which Lennox equipment do you primarily cover?

We focus on rooftops and commercial furnaces used for heating and air conditioning in high-occupancy buildings. Our approach is pragmatic: identify the root cause (combustion, air distribution, automation), then stabilize the installation to prevent recurring shutdowns.

How do you structure on-site work?

After a structured diagnostic, we proceed with immediate repair when parts and safety allow, otherwise we propose a return-to-service plan with intervention windows compatible with your operations. Preventive maintenance can include filter tracking, belt monitoring, ignition sequence checks and flue gas / combustion air exchange verification.

What information helps speed up diagnosis before arrival?

Alarm history, actual operating loads and rooftop access constraints allow us to target priority checks and reduce downtime.

Positioning note: Montréal Combustion is an independent expertnot affiliated with Lennox and holding no manufacturer representation mandate. Our role is technical and multi-brand.

Service area: Greater Montréal, North Shore, South Shore.

Frequently Asked Questions

Can you work on the combustion side of Lennox furnaces?
Yes, we address flame issues, safety sequences and regulation components, respecting your operating requirements and planned shutdowns.
Do you offer maintenance contracts for Lennox rooftops?
We can set up preventive maintenance calibrated to actual usage: filters, lubrication points, heat exchange and safety checks, with actionable reports for your maintenance team.
Are you an official Lennox dealer or partner?
No. Montréal Combustion is an independent service provider; the Lennox name is used solely to identify the equipment families we can maintain and troubleshoot.

24/7 Emergency — Fast Response Across Grand Montréal

Boiler failure, equipment breakdown or heating emergency? Our technicians respond quickly.

450-473-0909