Extractor fan installation in Dyfed

Many extractor fans in Dyfed homes need replacing because they never extracted properly.

Dyfed has every kind of building, from old terraces to new estates and business parks, and every job is designed around the building in front of us, not a standard kit.

Extractor fans in Dyfed at a glance

Area: Dyfed, Wales
Towns listed: 6, largest Llanelli
Postcode districts: SA15, SA18, SY23, SY24, SA31 and SA33
Price region: Wales
Survey: Free survey (UK mainland)

What extractor fan installation involves

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.

Inline fans

A quiet fan in the loft serving one or two ceiling grilles in a shower room or en-suite.

Kitchen extract and cooker hoods

A wall or window fan, or a cooker hood ducted outside rather than recirculating.

Like-for-like replacement

A new fan on the existing duct and wiring, often with an overrun timer or humidity sensor.

Guide prices in Dyfed

Extractor fan installation guide prices in Dyfed
Work	Guide price
Like-for-like extractor fan replacement (existing duct and wiring) (per fan)	£165–£280 inc VAT
New extractor fan through an outside wall (core drilled, wired, tested) (per fan)	£330–£525 inc VAT
New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan)	£425–£700 inc VAT
Inline fan for a shower room or en-suite (loft-mounted, one or two ceiling grilles) (per room)	£525–£850 inc VAT
Kitchen extract fan, or cooker hood ducted to outside (per kitchen)	£375–£650 inc VAT

Guide prices using Wales rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.

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 in Wales

Wales has its own Part F ventilation guidance, published by the Welsh Government, and work is checked by building control. We design to the Welsh rates and commission mechanical systems so the results can be recorded.

How the job runs

Quick survey
Choose the fan
Fit and duct
Wire
Test

Towns we cover in Dyfed

Questions about extractor fan installation in Dyfed

Are prices different in Dyfed?

Our guide prices are adjusted by region. In Dyfed we use Wales rates, so like-for-like extractor fan replacement (existing duct and wiring) is typically £165 to £280 inc VAT per fan.

Do you need building regulations for a new extractor fan?

Fitting or replacing an extractor fan has to meet the ventilation and electrical rules, and certain electrical work is notifiable. We do the work to the current standards. Electrical work that is notifiable is certified by a registered electrician, and you get a copy of the certificate and our airflow readings.

How long does fitting a fan take?

A straight replacement takes an hour or two. A new fan with a core-drilled hole or a duct through the loft usually takes half a day.

Is the survey free in Dyfed?

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.

Which rules apply to ventilation in Dyfed?

In Wales, the Welsh Government's own Approved Document F (2022 edition) applies to ventilation in homes, with a new edition taking effect on 4 March 2027. Rented homes must be fit for human habitation under the Renting Homes (Wales) Act 2016, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.

We can usually fit a replacement fan in Dyfed in a single short visit.