Even the best cavity tray is useless if trapped rainwater has nowhere to go. Weep holes create that exit route, draining lintels, DPCs and parapet trays while equalising pressure to stop wind-driven rain sneaking indoors. From the classic 9 × 65 mm plastic vent to Euroclass A1 metal Invisiweeps for high-rise façades, Spechunter keeps every style on the shelf – boxed, colour-coded and ready for next-day delivery.
Order before 12:00 and spend £200 ex-VAT for free UK mainland delivery. Not sure which vent suits your detail? Call 0118 922 7941 – we’ll talk you through it while the scaffold’s still going up.
At-a-Glance Weep-Hole Selector
| Situation | Best vent | Fire / combustibility | Link* |
|---|---|---|---|
| Lintels in standard housing | Timloc 1143 plastic (9 colours) | E (plastic) | Standard Weep Holes |
| Face-brick façades where visibility matters | Timloc Invisiweep concealed | E | Concealed Weep Holes |
| Buildings > 18 m or ADB “relevant walls” | Invisiweep A1 metal zinc | A1 | Non-Combustible Weep Holes |
| Thick stone / tile façades | Full-Height Weep Holes (65 × 100 mm) | E | Full-Height Weeps |
| Parapet copings or curved brick | Beak or Slimvent minor | E | Special Vents |
*Links jump straight to the SKU list for rapid checkout.
Why buy weep holes from Spechunter?
Full colour palette – buff, blue-black, grey, red terracotta, white and clear match any brick blend.
Euroclass A1 options in stock – stay compliant with Building Reg 7(2) on high-rise schemes.
BBA & NHBC accepted – documentation ready for site QA folders.
Complementary products – grab cavity trays, non-combustible DPCs and ARC T-Barriers in the same basket.
Installation Best Practice
Spacing – one vent every 450 mm (every fourth brick) above all cavity trays and DPCs.
Minimum two vents – always use at least a pair, even over narrow openings.
Set on mortar – seat the vent flush with the outer leaf, face slightly proud to shed drips.
Keep the path clear – remove obstructions behind the vent; never bed insulation tightly against it.
Pair with the right tray – use purpose-made Timloc Everdry trays or turned-up DPC under the weep line.
Frequently Asked Questions
Plastic or metal – which is best?
Plastic is fine for façades under 18 m; above that or where Reg 7(2) applies, swap to A1 metal Invisiweep vents.
How do concealed vents drain if you can’t see them?
Timloc Invisiweep slots into perp joints but contains an angled duct that opens at the brick face – water escapes through a 7 mm slot almost invisible once pointed.
Can I retrofit weeps if the brickwork’s up?
Yes. Drill a 10 mm core through a perp joint and push-fit a Slimvent minor or cut a brick out and insert an Invisiweep.
Will rodents get in?
All Spechunter vents include integral fly/rodent mesh complying with NHBC Chapter 6.1.
Delivery cut-off & surcharges?
Order before noon, spend £200 ex-VAT for free next-day mainland delivery. See our delivery information for Highlands & Islands.
Complementary Products
Cavity Trays & Stop-Ends – ensure water hits the weep line.
Type 2 Wall Ties – standard housing restraint.
Sealants & Adhesives – bed weep extensions or face-fix beak vents.
Need cavity-tray take-offs or a toolbox-talk sheet on weep-hole spacing? Contact us or ring 0118 922 7941—Spechunter will chase down every spec so you don’t have to.
Spechunter.co.uk – Chasing down specialist construction specifications since 1988. Fact checked and updated May 2025.
