Bathroom extractor fan installation cost in Ireland

A replacement may reuse an existing fan position, wiring and duct route. A new installation may need a suitable external discharge route, a core opening, longer ducting, a new power connection or making good. The €140 Dublin offer is explicitly for replacement and excludes VAT; it should not be used as the budget for creating a new duct route. The €150 advertised installation starting price is also a provider-specific starting point, not a complete guaranteed price for every bathroom.[1][2]

• Fan replacement in an existing opening, with the current duct route retained.
• New fan position requiring a wall or ceiling opening and an external discharge route.
• Long or awkward ducting, bends, roof access or a shared ventilation route.
• Humidity sensor, timer overrun, quiet operation or other control options.
• Electrical connection, switching changes, access equipment and making good.

Ask the installer how the fan will discharge air outdoors and what duct size and route are proposed. SEAI describes intermittent extract ventilation as removing moisture and pollutants from wet rooms directly to the outside; it also warns that water vapour entering a colder attic can condense on roof timbers. The Department of Housing’s Technical Guidance Document F covers ventilation for buildings. The right design depends on the home and the work being carried out, so ask the contractor to explain the proposed route rather than choosing solely on the fan’s advertised extraction rate.[3][5]

If mould is widespread, returns quickly or appears outside the bathroom, a new fan may not be the whole answer. Mention leaks, cold surfaces, blocked vents and when condensation occurs. Ask for diagnosis if the cause is unclear instead of assuming a fan replacement will resolve every damp issue.

• Fan make, model, airflow specification, noise level and warranty.
• Whether the quote is for replacement or a complete new installation.
• Duct length, route, outlet grille and any wall, roof or core-drilling work.
• Electrical connection and controls, with any additional circuit work identified.
• Removal of the old fan, disposal, making good and decoration exclusions.
• VAT, call-out, access equipment, total payable and workmanship guarantee.

For electrical work in a home, Safe Electric advises using a Registered Electrical Contractor and asking for a Completion Certificate where applicable. Confirm who is responsible for electrical testing and certification if the fan installer and electrician are different people.[4]

Send a photo of the existing fan and any visible outside grille, the room type, county and whether a fan already exists. Do not remove the cover. Explain whether the fan runs, how long it runs after the light is switched off and what symptoms you are trying to solve. Ask each installer to separate the fan replacement price from ducting, electrical and making-good work so you can compare like for like.