Starlink Drip Loop Installation¶
A drip loop is a simple but essential cable technique that prevents rainwater from running along your Starlink cable into the house. This guide covers drip loop design, installation, and UK weather considerations.
What is a Drip Loop and Why You Need One¶
A drip loop is a deliberate downward U-shaped bend in a cable where it enters a building or junction. Gravity causes water running down the cable to drip off at the lowest point of the loop rather than continuing into the wall entry point. For Starlink installations the drip loop is critical because the dish cable runs from an exterior dish to an interior router. Without a drip loop rainwater runs along the cable sheath into the wall cavity or building interior potentially causing damp issues and electrical hazards. The drip loop also provides strain relief preventing the cable weight from pulling on the wall entry gland. UK Building Regulations require weatherproof cable entries for external services. The drip loop should be formed near the wall entry point at least 50mm below the entry hole. The loop diameter should be approximately 100-150mm. Ensure the loop does not touch the ground or collect standing water. For installations entering through a soffit or fascia the drip loop must still be formed but may need to be horizontal rather than vertical.
Installing the Drip Loop¶
Step 1: Before feeding the cable through the wall measure the distance from the wall entry to the dish. Keep the cable slack at the wall entry point. Step 2: Form a U-shaped bend in the cable approximately 100-150mm in diameter at the lowest practical point near the wall entry. Step 3: Secure the loop with a cable tie to hold its shape. Do not pull the cable tight -- the loop must remain loose. Step 4: Ensure the lowest point of the loop is at least 50mm below the wall entry hole. Step 5: Secure the cable above the entry point with cable clips so the loop is maintained. Step 6: For cable runs from roof-mounted dishes the drip loop must be at the wall entry point, not at the dish end. Step 7: Check that the loop is not kinked or bent beyond the 75mm minimum bend radius. For brick and stone wall entries the drip loop may freeze in winter causing ice accumulation. If this is a concern use a larger loop diameter (150mm) and ensure the loop is not in a position where it can trap debris. In heavy rainfall areas consider a second drip loop at the dish end for additional protection. Prices: cable ties £2 per pack, exterior cable clips £5 per pack, no other materials needed for this technique.
Specifications and Comparison¶
| Cable Run Type | Drip Loop Location | Loop Diameter | Distance Below Entry | Additional Protection |
|---|---|---|---|---|
| Dish to wall entry | At wall entry point | 100-150mm | 50mm minimum | Optional second loop at dish |
| Roof mount to wall | At wall entry point | 100-150mm | 100mm recommended | Cable clip above entry |
| Ground mount to wall | At wall entry point | 150mm | 100mm | Armoured cable conduit |
| Fascia/soffit entry | Below soffit level | 100mm | 50mm | Horizontal loop if needed |
| Window frame entry | Below sill level | 100mm | 50mm | Compression seal around cable |
FAQ¶
- What is a drip loop for Starlink cable?
- A drip loop is a U-shaped bend in the cable near the wall entry point. It causes rainwater to drip off the lowest point of the loop rather than running along the cable into the wall cavity.
- Where should I place the Starlink drip loop?
- Place the drip loop immediately before the cable enters the wall. The lowest point of the loop should be at least 50mm below the entry hole. Secure with a cable tie to hold its shape.
- Can the drip loop freeze in UK winter?
- Yes, the drip loop can accumulate ice in sub-zero temperatures. Use a slightly larger loop (150mm diameter) and ensure it is not positioned where it can trap rainwater or debris that could freeze.
- Is a drip loop required by UK building regulations?
- While not explicitly required by UK Building Regulations it is recommended good practice and follows the principle of weatherproof cable entries as outlined in BS 7671 wiring regulations for exterior installations.
- Do I need a drip loop if the cable enters through a soffit?
- Yes, form a horizontal drip loop if vertical space is limited. The loop allows water to drip off before reaching the entry point. Ensure the loop is below the soffit level. For more information see our Starlink Cable Routing Through Walls.
Last updated: 2026-05-31.
Related Guides¶
External Resources¶
For further information consult authority guidelines at the UK Government Building Regulations.