A house that feels lovely on a bright March afternoon can be a very different place at 6am on a frosty July morning. For someone settling into a new home after a separation, often on one income and possibly with children coming and going, a cold, damp house adds stress and cost at the worst time. Checking the home properly before winter sets in, ideally in autumn, gives time to fix the cheap things and plan for the bigger ones.
Find where the heat goes
Most heat in a typical New Zealand house escapes through the ceiling, windows, floor and gaps around doors. A few simple checks show where the weak spots are:
- Ceiling insulation. Look into the roof space with a torch. You should see a continuous, fluffy layer with no bare patches. Thin, flattened or patchy insulation is common in older homes.
- Underfloor. If there is access, check for insulation between joists and a ground moisture barrier, usually a polythene sheet laid over the soil.
- Windows. Single glazing loses heat quickly. Thermal-backed curtains that reach the floor and sit close to the wall help a great deal.
- Draughts. On a windy day, hold a hand near door edges, letterboxes, old fireplaces and around window frames.
Draught stoppers, weather strips and door snakes cost very little and can be fitted in an afternoon. Curtains are a bigger outlay but often make the most noticeable difference in a living room.
Deal with damp first
A damp house is harder and more expensive to heat. Signs include condensation streaming down windows each morning, black mould on ceilings and in wardrobes, a musty smell and clothes that never quite feel dry. Practical steps:
- Make sure the bathroom and kitchen have working extractor fans that vent outside, and use them.
- Dry washing outside or in a vented dryer rather than on racks inside.
- Open windows for ten minutes on fine mornings to let moist air out.
- Wipe condensation off windows daily during cold spells.
- Check that gutters and downpipes are clear so rain is not soaking walls and foundations.
Outside, look at how water moves around the property. Puddles against the house, cracked paths that hold water or a driveway that drains toward the garage can all feed moisture into the structure. Some of these jobs overlap with presentation, as the guide to driveway cracks and first impressions in Hamilton shows.
Choose heating that suits the budget
Heat pumps are the most common efficient option in many parts of New Zealand, especially when sized correctly for the main living area. Wood burners suit some homes and regions, particularly where firewood is affordable. Portable electric heaters are cheap to buy but expensive to run for long periods. Unflued gas heaters add moisture and fumes to the air and are best avoided.
When comparing options, think about the running cost over a winter rather than the purchase price alone. Power companies can usually show recent usage, which helps set a realistic monthly budget. It is also worth comparing plans once you know your household’s pattern: a single adult out at work all day uses power very differently from a family home, and a low-user plan or a different provider can trim the winter bill. If you are renting, the landlord must meet the healthy homes standards for heating, insulation, ventilation, moisture and draughts.
Who pays for upgrades?
In a separation, the question of who pays for improvements can be complicated, particularly if the home is still jointly owned or the property arrangements are not finalised. Spending money on insulation or a heat pump may be sensible for comfort and value, but how that spending is treated later is a matter for independent advice. General information about how relationship property is handled is available from the Ministry of Justice, which is a sensible starting point before making large decisions.
Government and regional energy-efficiency programmes have offered subsidies for insulation and heating to eligible households at various times. Check what is currently available in your region before paying full cost.
Frequently asked questions
When is the best time to check a home for winter? Autumn, from March to May, gives time to arrange insulation, curtains or heating before the coldest months, when installers are often busier.
What is the cheapest way to make a house warmer? Stopping draughts, closing curtains at dusk and drying washing outside are low-cost steps that make a real difference.
Are dehumidifiers worth buying? In damp homes, yes. They pull moisture from the air, which makes rooms easier to heat and reduces mould, but they work best alongside good ventilation.