Exhaust Fan Repair and Installation in Oshawa
Exhaust Fan Repair in Oshawa is the service that keeps a rooftop upblast fan pulling air through a commercial kitchen exhaust system after its belt, bearings or motor begin to fail. Oshawa Hood Cleaning inspects the fan on its curb, quotes the repair or the replacement in writing with parts itemised, fits hinge kits so the fan tips open at every future cleaning, and installs rooftop grease containment so drained grease never reaches the roof membrane. Work is scheduled overnight or between services in Oshawa, Courtice, Bowmanville and Newcastle, and every job ends with before-and-after photographs.
What a rooftop upblast fan is made of, and what fails first
The motor and drive. Most Oshawa restaurant fans are belt driven: a motor outside the airstream turns the blower wheel through a belt and two pulleys. The belt is the wear item. It stretches, glazes and sheds black dust around the curb, the first sign the drive is slipping.
The bearings. The blower shaft rides on two bearings. When they run dry the fan squeals on start-up, then hums, then seizes, and a seized bearing takes the motor with it.
The wheel and housing. The wheel sits in a housing that carries every gram of grease the system has exhausted. A wheel coated on one side runs out of balance, vibrates the curb and loosens the fasteners.
The curb, the wind band and the drain. The fan bolts to a metal curb on the roof structure. A wind band keeps the discharge vertical. A drain at the base of the housing lets condensed grease out, and where it goes is the containment question below.
Repair vs replace: how the call is made on an Oshawa roof
The inspection answers one question: are the curb, the housing and the shaft sound. If so, the fan gets repaired.
| Symptom on the roof | Repair vs replace | What the job involves |
|---|---|---|
| Black dust around the curb, fan runs slow | Repair | New belt, pulleys checked for wear and alignment, tension set. |
| Squeal on start-up, hot bearing housing | Repair | Bearings replaced on the existing shaft, wheel rebalanced after cleaning. |
| Housing rusted through, wheel cracked | Replace | New fan sized to the hood airflow, set on the existing curb where it is sound. |
| Curb corroded, fasteners pulling out | Replace with new curb | Curb and fan replaced together, roofing contractor coordinated for the membrane tie-in. |
Three repairs in two years on one fan is a replacement paid for twice.
Where to find exhaust fan hinge kit installation near me in Oshawa
A hinge kit decides whether the fan housing gets cleaned at future visits or gets wiped on the outside and left.
A bolted fan has to be disconnected, unbolted and lifted clear of the curb before anyone can reach the wheel or the inside of the housing. At two in the morning on a plaza roof, that is the step that gets dropped. The certificate still gets signed and the wheel keeps loading. Oshawa Hood Cleaning fits hinge kits so the fan tips back in under a minute, with a restraint that holds it open in wind, and the housing is cleaned at every visit afterwards.
Older Oshawa fans are not always a standard base pattern, so the inspection records the flange, the curb dimensions and which way the fan has room to swing. Weathered fasteners often shear instead of releasing, and the quote allows for replacing them. The kit is fitted during a scheduled cleaning visit, so there is no separate roof call-out. The canopy side of that visit is on the hood cleaning page, and the run between hood and fan is on the kitchen exhaust cleaning page.
Rooftop grease containment in Oshawa: the membrane and the landlord
The drain at the base of a fan housing has to run somewhere. Without containment, it runs onto the roof.
Rooftop grease containment is a tray fitted at the fan drain, filled with absorbent media, that catches condensed grease before it reaches the membrane. Grease softens the single-ply membranes on most Oshawa plaza roofs, and a pool of it around a curb is the most common cause of a leak above a cook line.
The liability sits with the tenant in most commercial leases. A landlord whose roofer finds a grease-damaged membrane around a kitchen exhaust curb bills the repair back to the restaurant, and a roof warranty can be voided by the same finding. A containment unit with its media changed and photographed at each visit shows the tenant took reasonable care.
Best exhaust fan repair in Oshawa for a fan that will not start
Oshawa Hood Cleaning treats a dead fan as an urgent call, because a kitchen with no exhaust cannot cook.
A fan that will not start usually means one of four things: a tripped disconnect on the roof, a failed capacitor or motor, a snapped belt, or a seized bearing that has stalled the motor. The first is a free fix, the next two are same-visit repairs, and the fourth decides between repair and replacement. A fan that throws belt dust across the roof is on its way to a snapped belt.
The inspection also records what a repair alone will not fix: an undersized fan, a wind band missing after a storm, a curb leaking at the corners. The airflow the fan has to deliver is set by the hood and the cooking beneath it, and the standard behind that is on the NFPA 96 page.
How much does exhaust fan repair cost in Oshawa in 2026?
Oshawa Hood Cleaning quotes exhaust fan repair, replacement, hinge kits and rooftop containment per job after a rooftop inspection, with every part itemised and the written quote back within 24 hours. For context, a scheduled hood cleaning visit starts at $385 for a single-hood kitchen and $725 for a multi-hood kitchen of two to four canopies.
The variables are fan size, drive type, the state of the curb and fasteners, and whether the disconnect and wiring need attention while the unit is open. A full replacement with a new curb involves a roofing contractor for the membrane tie-in, and that coordination is on the quote.
For a building with several kitchens, all the fans can be inspected in one roof visit and quoted together to the property manager. The services hub matches a problem to a page, and the kitchens this applies to are on the who we serve page.
Next step: call 289-274-5331 or request a written quote. A photograph of the fan on its curb is enough to identify the drive type and the likely hinge kit.
Exhaust fan repair in Oshawa: frequently asked questions
Can the kitchen keep cooking while the fan is down?
No. A cooking line without a working exhaust fan has no capture at the hood, so smoke and grease vapour go into the kitchen. Oshawa Fire Services and Clarington Emergency and Fire Services both treat a dead fan as a reason to stop cooking, which is why it is booked as an urgent call.
Who pays for the fan, the tenant or the landlord?
The lease decides. Most Oshawa commercial leases put the exhaust fan with the tenant and the curb and membrane with the landlord. The quote separates the fan work from the curb and membrane work so each party can see its own line.
Does a replacement fan have to match the old one?
It has to match the airflow the hood needs and the curb it sits on, not the brand. An undersized original is replaced with a correctly sized unit, and a corroded curb is replaced at the same time.
What does belt dust on the roof mean?
Black dust in a ring around the curb is the belt wearing against a misaligned or glazed pulley. A new belt and a pulley alignment are a same-visit repair. Left alone, the belt snaps and the kitchen loses its exhaust without warning.
Is the hinge kit fitted on a separate visit?
Normally no. Hinge kits and containment are fitted during a scheduled hood cleaning visit, since the crew is already on the roof with the fan open. The landlord's approval for work on the curb is the step most likely to delay it, so it is worth starting early.