As soon as temperatures remain below freezing, the risk of frost damage increases. Water expands when it freezes and can damage pipes, fittings and seals. The good news: a winter check can prevent most damage. Pipes in exterior walls, unheated rooms, garages and gardens are particularly at risk.
1. Drain outdoor taps
Close the shut-off valves for garden lines and drain the pipes. An outdoor tap that is not used in winter should no longer contain water. Check whether the valve closes completely and whether the line has a slope for draining.
2. Keep an eye on unheated rooms
Pipes in basements, garages, attics or storage rooms can freeze when the ambient temperature drops. Insulate exposed pipes and keep doors to heated rooms closed. In extreme cold, a frost monitor can be useful. However, it must be operated safely and must not create a fire risk.
3. Insulate pipes properly
Pipe insulation protects against frost and also reduces heat loss. Make sure the insulation is continuous. Areas on exterior walls, in corners and behind cabinets are particularly important. Damaged insulation should be replaced. A temporary cover is sufficient for short-term protection, but a permanent solution should be professional.
4. Do not switch the heating off completely
If you travel in winter, do not turn the heating off completely. A reduced temperature keeps the building above freezing. Also check whether the heating system is adequately protected against power failures or faults. For longer absences, ask a trusted person to check the house regularly.
5. Check drains and the basement
Frost can also affect wastewater pipes outdoors. Remove leaves and dirt from gullies so water can drain away. Check the basement for moisture and have leaks repaired. Standing water near the foundation can build up additional pressure during frost.
6. Holidays and vacant properties
If the house is empty for a longer period, close the water supply and drain the pipes. Leave the heating and ventilation in a safe condition. Inform the utility provider and a trusted person if necessary. A meter reading before departure helps to detect unnoticed water loss.
7. What to do if a pipe has frozen
If no water comes out of the tap, the pipe may be frozen. Turn off the water supply and open the affected tap. Warm the pipe carefully with warm air, for example with a hairdryer on a low setting. Never use an open flame or boiling water. If you suspect a burst pipe or the location is inaccessible, call a professional.
Winter checklist
- Close and drain outdoor taps.
- Check exposed pipes and seals.
- Keep unheated rooms frost-proof.
- Leave the heating at a reduced temperature.
- Clear drains and gullies of leaves.
- Check the basement and foundations for moisture.
- Inform a trusted person when you are away.
Check after winter
Frost damage does not always show immediately. In spring, check whether moisture or limescale marks have formed at pipe joints. A slightly increased water consumption can also be a sign. Anyone who briefly checks the pipe before winter and after the thaw recognises damage earlier and can avoid larger repairs. It is also worth checking your insurance conditions: frost damage is not automatically covered by every buildings insurance policy.
Conclusion
Frost protection is not a major effort, but it can prevent expensive repairs. A thorough winter check is particularly worthwhile for older houses and pipes in unheated areas. If you are unsure or damage has already occurred, AVA SERVICE in Herzogenrath and the surrounding area can help quickly and professionally.



