Halo Heating

Reliable Heating Solutions

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Maintenance5 min read12 October 2025

Your Winter Heating Checklist: Get Ready Before the Cold

Use this practical checklist to make sure your heating system is ready for winter — before the cold weather arrives.

Your Winter Heating Checklist: Get Ready Before the Cold

Why Prepare in Autumn?

Heating systems that have sat idle all summer are more likely to develop faults when first switched on in autumn. Waiting until winter to discover a problem means cold nights, potential emergency call-out charges, and longer waits for an engineer (as demand spikes in January and February).

Spending a little time in September or October checking your system can save significant hassle and expense.

Your Winter Heating Checklist

Boiler and Controls

  • [ ] **Book a boiler service** if one hasn't been done in the past 12 months
  • [ ] **Test the boiler** by turning the heating on for an hour — does it fire up and heat all radiators?
  • [ ] **Check the pressure gauge** — should read 1–1.5 bar when cold
  • [ ] **Check for error codes** on the boiler display
  • [ ] **Test the thermostat** — set it above room temperature and check the boiler responds
  • [ ] **Update the heating programme** for winter hours
  • [ ] **Replace thermostat batteries** if it's battery-powered
  • [ ] **Check the CO alarm** is working — test the button and replace batteries if needed
  • Radiators

  • [ ] **Bleed all radiators** to release trapped air
  • [ ] **Check TRV settings** are set appropriately for each room
  • [ ] **Check all radiators heat up fully** — cold patches may indicate sludge
  • [ ] **Move furniture away from radiators** to allow heat to circulate
  • Pipes and External Components

  • [ ] **Insulate the condensate pipe** with outdoor foam lagging to prevent freezing
  • [ ] **Check the boiler flue terminal** is clear (no bird nests, debris, or obstructions)
  • [ ] **Inspect visible pipework** in lofts, garages, and outbuildings — insulate anything at risk of freezing
  • Hot Water

  • [ ] **Check your hot water cylinder** is heating to 60°C (if you have a system boiler)
  • [ ] **Test the hot water pressure** at taps
  • Boiler Cover

  • [ ] **Review your cover plan** — is it still appropriate for your needs?
  • [ ] **Check contact details** for your heating engineer are easily accessible
  • If you'd like a professional winter check carried out by one of our engineers, call Halo Heating on 01483 676108.

    Need Professional Help?

    Our Gas Safe registered engineers cover Surrey and surrounding areas. Call for a free quote or to book an engineer.

    Call 01483 676108