Extractor Fan Replacement Time: How Long It Really Takes and What to Expect

When you’re dealing with a noisy, broken, or ineffective extractor fan, a mechanical device designed to remove moisture, odors, and airborne contaminants from kitchens and bathrooms. Also known as extraction fan or range hood fan, it’s one of those appliances you don’t think about—until it stops working. A failing extractor fan doesn’t just make your space smelly or damp; it can lead to mold, peeling paint, and even structural damage over time. That’s why knowing how long a replacement takes matters—especially if you’re trying to plan your day or avoid a cold, steamy bathroom.

The actual extractor fan replacement time, the duration required to remove an old unit and install a new one. Also known as fan installation time, it typically ranges from 1 to 4 hours, depending on the setup. A simple swap in a bathroom with easy access and matching wiring? That’s often under 90 minutes. But if the old fan was poorly installed, the ductwork is crushed or blocked, or you’re upgrading to a more powerful model that needs new venting, you’re looking at closer to 3 or 4 hours. It’s not just about unscrewing a few bolts—it’s about checking electrical connections, sealing duct joints, and making sure the new fan actually vents to the outside, not just into your loft. Many people assume it’s a quick DIY job, but if the wiring is outdated or the wall cavity is full of insulation, you’re better off calling in someone who’s done this before. A certified gas engineer might not handle this, but a qualified electrician or HVAC technician will know how to avoid mistakes that could lead to fire hazards or failed inspections.

What slows things down? Old homes. Outdated wiring. Fans mounted behind tiles or in tight ceiling spaces. If your fan is connected to a timer or humidity sensor, that adds another layer. And if the existing duct runs through multiple rooms or has sharp bends, reconfiguring it can take hours. On the flip side, modern extractor fans are designed for easier installation—many come with quick-connect wiring and adjustable mounting brackets. Still, the biggest time-saver is having the right tools and knowing exactly what you’re replacing. Don’t assume all extractor fans are the same size or use the same power cable. Measure first. Check the amperage. Match the voltage. Skipping these steps can turn a 2-hour job into a full-day frustration.

Whether you’re replacing a kitchen extractor fan after a cooking disaster or fixing a bathroom fan that’s been rattling for months, the goal isn’t just to get it running again—it’s to get it running right. The posts below cover real cases: how long repairs actually take, what parts fail most often, how to tell if you need a full replacement, and when it’s smarter to upgrade than to fix. You’ll find honest timelines from professionals, cost breakdowns, and tips to avoid common traps that turn simple jobs into expensive messes. No fluff. Just what you need to know before you call someone—or pick up a screwdriver yourself.