Quick Answer

To prepare your Melbourne home for winter (June–August), focus on five priority areas: service your ducted heating before June, clean gutters before the autumn rains, check for draughts and seal them, inspect the roof for damaged tiles, and test your smoke alarms. Most tasks are DIY-friendly and cost under $100 in materials — but getting your heating serviced by a licensed gasfitter is the one job you should never skip or leave until you’re cold.

A homeowner in warm clothes cleaning autumn leaves from gutters using a scoop, with a misty Melbourne winter morning visible in the background
Cleaning gutters before Melbourne’s winter rains is the single highest-value maintenance task in autumn — blocked gutters cause overflow that leads to roof leaks, fascia rot, and damp internal walls.

Melbourne winters are mild but wet, with Berwick, Narre Warren, and Pakenham averaging 50–60mm of rain through June and July. Combined with temperatures regularly dropping to 4–7°C overnight, the risks are frozen pipes in exposed areas, mould from condensation, and skyrocketing heating bills in draughty homes. This checklist covers everything you should do in April and May to be ready before winter hits.

Exterior Checks

Gutters and Downpipes

Clean all gutters of accumulated autumn leaf litter — failing to do this before Melbourne’s winter rains is the leading cause of roof leaks and fascia damage in SE Melbourne homes. Use a sturdy ladder, gutter scoop, and garden hose.

What to Check Why DIY or Pro Cost
Clear leaf debris from gutters Blocked gutters overflow under the eaves and cause fascia rot and internal leaks DIY $0 (labour only)
Flush downpipes with garden hose Leaf plugs in downpipes are invisible until you get overflow in the first rain DIY $0
Check gutter brackets for sag Sagging gutters pool water and don’t drain — they leak at the lowest point DIY repair if minor; Pro if structural $0–$150
Consider gutter guard installation Prevents autumn leaf blockages year-round in areas with large overhanging trees DIY or Pro $5–$20/m DIY; $30–$60/m installed

Roof Inspection

You don’t need to climb on the roof — use binoculars from the ground to scan for cracked, slipped, or missing tiles. Focus on the ridge line, valleys, and around skylights and chimneys.

  • Cracked or lifted ridge capping (the cement along the peak) is the #1 cause of roof leaks in Melbourne’s older tile homes
  • Moss and lichen hold moisture — treat with a spray-on solution if coverage is significant
  • Flashing around chimneys, skylights, and valleys should be flat and sealed — any gaps are leak points
  • Metal Colorbond roofs: check for rust spots at cut edges and ensure all screws are capped
A homeowner using binoculars to inspect roof tiles from a safe ground position, checking for cracked or lifted tiles before Melbourne's winter rain season
Inspect your roof from the ground with binoculars before Melbourne’s winter rains — cracked ridge capping and slipped tiles are best spotted in dry weather when you can see the gaps clearly.

Heating System Checks

Ducted Gas Heating Service

Book your ducted heater service in April — before the rush. Every licensed gasfitter in Melbourne fills up in May and early June. A professional service costs $150–$300 and should include cleaning the heat exchanger, checking gas pressure, inspecting the flue, and testing all zones.

Safety warning: A cracked heat exchanger in a gas ducted heater can leak carbon monoxide — an odourless, colourless gas that can be fatal. CO is the reason annual servicing is not optional. Install a carbon monoxide detector near your heater if you don’t already have one — they cost $40–$80 at Bunnings and could save your family’s life.
  • Clean or replace return air filters — clogged filters reduce airflow by 30–50%, adding $200–$400 to annual running costs. See our filter replacement guide.
  • Test all zones — turn on each zone and confirm warm air is flowing. A zone that doesn’t work usually has a stuck damper (often DIY-fixable) or a failed actuator ($100–$200 for a plumber).
  • Check the flue termination point (visible from outside) — no debris, no nests, clear of obstructions.

Split System and Reverse Cycle

  • Clean the air filter in the indoor head unit — slide it out and rinse under warm water. Do this every 4–6 weeks in winter.
  • Check that the outdoor unit is clear of leaves, garden debris, and overgrown shrubs. Leave at least 50cm clearance around all sides.
  • Test the heating mode in April — if the unit blows cold in heat mode, the reversing valve may have failed. Book a service before winter.

Insulation and Draught Sealing

Draught sealing is the highest return-on-investment winter preparation task. A draught-prone home loses 20–25% of its heat through gaps around doors, windows, and exhaust fans — and that’s energy you’re paying for. The fixes are cheap and mostly DIY.

Location DIY Fix Product Cost
External door bottom gaps Door draught stopper or door snake Foam or brush seal $10–$40
Door frame gaps (sides and top) Self-adhesive foam tape Raven RP19 or similar $5–$15/door
Sash window gaps V-strip or foam tape Raven or Weatherseal $10–$25/window
Exhaust fan (kitchen, bathroom) Install a draught-proof cover or shutter Vent cover with integral shutter $20–$50
Fireplace (unused) Chimney balloon or draught excluder Chimney Balloon $30–$60
Ceiling penetrations (lights, pipes) Seal with fire-rated silicone or foam Fire-rated silicone sealant $15–$30
Pro tip: On a cold, windy day, light a stick of incense and hold it near door frames, window edges, and skirting boards. The smoke reveals draught currents that are otherwise invisible. This 10-minute audit will show you exactly where to seal first.
A homeowner applying self-adhesive foam draught-seal tape around an external door frame on a Melbourne home in preparation for winter, with a cold grey sky visible through the door gap
Self-adhesive foam door seal tape costs about $8 a roll and takes 10 minutes per door — it can cut heat loss through door frames by 80%, saving significantly more than its cost in a single Melbourne winter.

Plumbing Checks

  • Insulate exposed pipes — in Melbourne’s cooler south-eastern suburbs, exposed water pipes in uninsulated garages and subfloors can freeze in cold snaps. Foam pipe lagging from Bunnings costs $3–$8 per metre and slips on in minutes.
  • Check hot water system — winter is when HWS failures spike. If your system is over 8 years old or making banging sounds, get it inspected. Gas HWS are often cheapest to run in winter when solar input drops.
  • Know where your mains water shutoff is — if a pipe bursts in winter, you need to shut off the mains immediately. Test the valve now to make sure it’s not seized.

Safety Checks

Check Why Winter-Critical Action Required
Smoke alarms — test all Heaters and fireplaces increase house fire risk in winter Press test button; replace battery if needed
Carbon monoxide detector Closed-up homes concentrate CO from gas appliances Install if not present ($40–$80); test if existing
Fireplace/wood heater — annual inspection Flue build-up causes chimney fires Book chimney sweep ($150–$250)
Extension cords and heaters Portable heaters on extension cords are a fire risk Plug directly into wall sockets only

Tips & Gotchas

  1. Book your heater service in April, not May. Every year, Melbourne homeowners wait until they’re cold and every gasfitter has a 2-week wait. April bookings cost the same and get done before the rush.
  2. Clean gutters after the last big leaf fall. In SE Melbourne, plane trees and elms drop most leaves in April–May. Clean gutters after the majority has fallen, not before.
  3. Check your ducted heater flue from outside before turning on the system. Birds nest in unused flues over summer. A blocked flue on a gas heater is an immediate CO risk.
  4. Mould prevention starts now. Melbourne winters generate condensation on cold walls. A dehumidifier ($200–$400) or improved ventilation prevents the mould that costs $500–$2,000 to remediate.
  5. Your heating bills are largely determined by draught sealing, not thermostat setting. Sealing a draughty home can cut heating costs by 20–30% with no change in comfort level.
  6. Check pipe lagging in your subfloor or garage. Melbourne’s Dandenong Ranges and Berwick Hills areas do occasionally get sub-zero nights — enough to freeze exposed copper pipes.
  7. Reverse cycle systems are dramatically cheaper to run than gas ducted in many Melbourne homes. If your split system can heat the main living area, use it as primary heat and supplement zones with panel heaters rather than running all ducted zones.
  8. Pool covers pay for themselves in winter. A pool cover prevents evaporation, reduces chemical costs, and can keep pool temperature 8–10°C warmer — saving on heating costs if you have a pool heater.

Estimated Costs for Winter Prep

Task DIY Cost Pro Cost Priority
Clean gutters $0 (labour) $150–$400 Critical
Ducted heater service Cannot DIY (licensed gasfitter required) $150–$300 Critical
Draught sealing (doors and windows) $50–$150 $300–$600 High
Replace heater air filters $15–$50 $60–$120 High
Roof inspection (professional) $0 (ground visual) $200–$400 Medium
Pipe insulation (exposed pipes) $20–$60 $150–$300 Medium
CO detector (if not installed) $40–$80 N/A Critical

Local Melbourne Resources

FAQ

When should I prepare my Melbourne home for winter?

April is the ideal time — before the main cold weather arrives but after most autumn leaves have fallen. Book heating services in April (not May) to avoid the pre-winter rush. Clean gutters in late April or early May after the heaviest leaf fall in SE Melbourne’s deciduous street trees.

How much does it cost to prepare a Melbourne home for winter?

A comprehensive winter preparation typically costs $200–$600 for a DIY-focused approach (draught sealing materials + heater service). The biggest single cost is the ducted heater service ($150–$300), which requires a licensed gasfitter. Draught sealing, gutter cleaning, and filter replacement can all be done for under $100 in materials.

Do pipes freeze in Melbourne?

Rarely in most suburban areas, but exposed pipes in uninsulated garages, subfloors, and south-facing external walls can freeze in Dandenong Ranges, Belgrave, Berwick Hills, and other elevated south-eastern areas where overnight temperatures can drop to 0°C or below. Foam pipe lagging ($3–$8 per metre at Bunnings) prevents this and also reduces heat loss from hot water pipes.

What causes mould in Melbourne homes in winter?

Condensation is the primary cause of winter mould in Melbourne. When warm humid air inside the home contacts cold walls, windows, or ceilings, moisture condenses and creates mould-friendly conditions. Solutions include: improved ventilation (opening windows briefly each morning), a dehumidifier in damp areas, improved ceiling insulation to keep surfaces warmer, and fixing any sources of moisture ingress through the roof or walls.