Built on
heavy iron
and kept promises.
What started as one diesel mechanic with a service van has grown — quietly, deliberately — into one of Ontario's most trusted service operations for heavy industry.
Every job is handled by a senior technician. Every invoice is transparent. Every machine leaves our care better than it arrived.
Our story →Seven services,
one call.
From small engines to rock trucks, from diesel generators to marine engines and loading docks — every service NIRO offers is performed by a senior technician with over two decades of experience.
Heavy Equipment Service
Covering from small engines to rock trucks in Toronto area and around.
→02Hydraulic Service
Where your business needs us we will be there — on-site hydraulic repair and rebuild.
→03Diesel Engine Service
Service, repair and rebuild — more than 23 years of experience in the diesel engine field.
→04Diesel Generator Service
From light tower to cities power plant we cover you up.
→05Mobile Service
Don't worry — we'll meet you there. Our workshop comes to you.
→06Marine Engines
We have been sailing enough to know how to help you!
→07Loading Docks
Our warranty included service gives you peace of mind.
→Years in operation
Since 2005, independently owned.
Projects completed
Logged with full service records.
Service areas
From diesel engines to marine & docks.
How a job
actually works.
Initial assessment
One call establishes urgency, location, and what the machine is doing. We match the right technician.
Transparent quotation
Parts priced before the job starts. No estimates that grow after we open the machine.
Precision execution
Work done to manufacturer spec by a senior technician. Photographed, logged, tested under load.
Field handover
Full service record delivered at invoice. Machine handed back with zero punch list.
From the
journal.
Technical insight from two decades in the field — written by the technicians, not the marketing department.
Machine down? We answer.
No ticket queues. No menus. A senior technician — including on statutory holidays.
Or write — info@nirogroup.ca