Install Air Vent Guide

Scope of Works

• Site survey & route check – confirm ventilation need, wall build‑up and access points.

• Core‑drill or brick removal to create a 100 – 127 mm opening through masonry or timber frame.

• Supply & fit vent kit (telescopic sleeve, louvre/cowl, internal grille or trickle vent).

• Seal & weather‑proof with exterior mastic, internal filler and trim; fire‑stop if regs require.

• Signal smoke/CO alarm test where combustion appliances are present.

• Tidy debris & issue installation note showing airflow free‑area and materials used.

  
  

Typical Cost (inc. VAT)

Time on Site

• Typical: 1 – 3 hours for one core‑drilled vent, ground or first‑floor.

• Half‑day+: very hard brick/stone, rewiring obstacles, or multiple rooms.

• Full day: scaffold setup, internal boxing‑in, or simultaneous fan/duct upgrades.

  
  

Questions to Ask Your Trade

1. What free‑air area and vent type have you specified for this room?

2. Will the route be fully clipped, sealed and insulated to prevent condensation?

3. Do you provide a fixed price or charge hourly after the first vent?

4. How will you verify airflow or pressure once the vent is installed?

5. What warranty covers the sleeve, grille and workmanship?

6. Who arranges scaffold or roof‑ladder hire if access is above 3 m?

7. Can you supply a waste‑transfer note if a skip is required for rubble?

   
   

How to Avoid Surprises

• Access & parking: keep driveway clear for van and core‑drill rig.

• Loft / cavity check: move insulation or belongings off the drill route.

• Power supply: provide a 230 V outlet for drill and dust extractor.

• Neighbour notice: warn of short drilling noise (5–10 min bursts).

• Working at height: confirm if tower scaffold needs a pavement licence.

• Future‑proofing: ask for a spare pull‑cord or conduit alongside the vent sleeve.

  
  

All price ranges are rounded 2025 GBP values and already include 20 % VAT.