Harpenden, Hertfordshire
Extractor fan installation in Harpenden
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested. Covering Harpenden and AL3, AL4 and AL5.
- From £185 inc VAT per fan
- Free survey
If the bathroom mirror in your Harpenden home stays steamed up, the fan probably is not moving enough air.
Customers in Harpenden can get a guide price online in a couple of minutes. It uses East of England rates, which is what we would charge for the same job anywhere in Hertfordshire. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
Extractor fans in Harpenden at a glance
- Town
- Harpenden, Hertfordshire
- Postcode districts
- AL3, AL4 and AL5
- Nearby
- St Albans (5 miles), Luton (5 miles) and Codicote (6 miles)
- Price region
- East of England
- Survey
- Free survey (UK mainland)
Extractor fans for Harpenden 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.
Like-for-like replacement
A new fan on the existing duct and wiring, often with an overrun timer or humidity sensor.
New fan through an outside wall
Core drilled, sleeved, wired from a fused spur and sealed outside.
Guide prices in Harpenden
| Work | Guide price |
|---|---|
| Kitchen extract fan, or cooker hood ducted to outside (per kitchen) | £415–£725 inc VAT |
| Like-for-like extractor fan replacement (existing duct and wiring) (per fan) | £185–£310 inc VAT |
| New extractor fan through an outside wall (core drilled, wired, tested) (per fan) | £360–£575 inc VAT |
East of England rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
When to get it looked at
- The fan runs but a sheet of toilet paper does not stick to the grille
- The fan is noisy, rattling or has stopped
- The duct ends in the loft rather than outside
Rules that apply in England
In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). For homes, it sets minimum extract rates such as 15 litres a second for a bathroom and 30 or 60 for a kitchen, and expects mechanical systems to be airflow-tested.
Questions from Harpenden
Do you cover Harpenden and nearby?
Yes. We cover Harpenden and nearby places including St Albans, Luton, Codicote and Hemel Hempstead. Send your postcode and we will confirm.
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.
What is the price of new extractor fans in Harpenden?
Guide prices for Harpenden use East of England rates: like-for-like extractor fan replacement (existing duct and wiring) is typically £185 to £310 inc VAT per fan. We confirm a fixed price in writing before any work starts.
Is the survey free in Harpenden?
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.
Tell us how many rooms need fans in your Harpenden home and we will quote them together.
Extractor fans near Harpenden
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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.