Orpington, Greater London
Extractor fan installation in Orpington
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested. Covering Orpington and BR5, BR6 and BR7.
- From £210 inc VAT per fan
- Free survey
A common fault in Orpington homes is a bathroom fan ducted into the loft instead of outside.
Work in Orpington follows the rules for England and finishes with a written record of what was fitted and how it was set up.
Extractor fans in Orpington at a glance
- Town
- Orpington, Greater London
- Postcode districts
- BR5, BR6 and BR7
- Nearby
- Chelsfield (2 miles), Bickley (3 miles) and Chislehurst (3 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
Extractor fans for Orpington homes
Many existing fans were never doing their job: undersized, ducted into the loft space, fitted with a flex duct crushed in the joists, or switched off by occupants because they were noisy. The rate a fan delivers through a real duct run is often far lower than the number on the box, which is why we size to the room and test the result.
New fan through an outside wall
Core drilled, sleeved, wired from a fused spur and sealed outside.
Ducted to outside through the loft
Insulated duct to a roof, ridge or soffit outlet so warm moist air does not condense in the loft.
Guide prices in Orpington
| Work | Guide price |
|---|---|
| Like-for-like extractor fan replacement (existing duct and wiring) (per fan) | £210–£355 inc VAT |
| New extractor fan through an outside wall (core drilled, wired, tested) (per fan) | £415–£650 inc VAT |
| New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan) | £525–£900 inc VAT |
These ranges use our London rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
When to get it looked at
- Mould on the bathroom ceiling or around the window
- The fan runs but a sheet of toilet paper does not stick to the grille
- The fan is noisy, rattling or has stopped
Rules that apply in England
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Orpington
What is the price of new extractor fans in Orpington?
Guide prices for Orpington use London rates: like-for-like extractor fan replacement (existing duct and wiring) is typically £210 to £355 inc VAT per fan. We confirm a fixed price in writing before any work starts.
How much does it cost to fit an extractor fan?
Replacing a fan on an existing duct usually costs £175 to £295 including VAT. A new fan through an outside wall is typically £345 to £545, and a fan ducted to outside through the loft £445 to £745.
What size extractor fan does a bathroom need?
In England a bathroom fan should extract at least 15 litres a second, measured at the fan, under Approved Document F. Long or bendy duct runs reduce flow, so the fan often needs to be rated higher than the minimum.
Is the survey free in Orpington?
For new installations on the UK mainland, yes. The survey is free and the quote that follows is fixed and in writing. Servicing, testing and repair visits are charged, and we confirm the cost before booking.
How do I get a price for new extractor fans in Orpington?
Use the guide price tool, the form on this page, live chat, WhatsApp or call 0800 088 6341. A postcode and a couple of photos help us give you a useful answer first time.
Book an Orpington visit and we will test the fan you have before recommending a new one.
Extractor fans near Orpington
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Answer a few questions for a price range, or send photos and we will come back to you with a written quote.