Advice & Guides
Practical advice for healthier, more comfortable Auckland homes.
Many homeowners contact Holmes Services because their home feels damp, the windows are wet in the morning, mould keeps returning, or some rooms are hard to keep warm. These guides explain common home comfort problems in plain language and show how ventilation, heat pumps, servicing and good system design can help.
If you already know what service you need, you can also view our HVAC services.
Featured Guides
Why Does Mould Keep Coming Back?
Where mould appears, why it returns, and how to reduce the conditions it needs to grow.
Read guide
How To Stop Window Condensation
Why it happens, what makes it worse, and how airflow and ventilation reduce moisture.
Read guide
Does A Heat Pump Reduce Power Bills?
What affects running costs and how servicing helps your heat pump work more efficiently.
Read guide
Why Is One Bedroom Always Cold?
What to check and when a heat pump or multi-room solution may be the right fit.
Read guide
Why Is My House Damp?
Understand the common causes of dampness in Auckland homes and when ventilation can help.
Read guideBrowse All Articles
Helpful advice across all topics.
Heat Pumps
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- Does A Heat Pump Reduce Power Bills?liveWhat affects heat pump running costs and how to keep energy use sensible.
- Ducted Heat Pump vs High Wall Heat PumpliveA practical comparison of whole-home ducted comfort and single-room high wall systems.
- Heat Pump Running Costs ExplainedliveThe main factors behind heat pump power use, from sizing to settings and servicing.
- How Do I Clean A Ducted Heat Pump Filter?liveWhat homeowners can safely clean and when a ducted system needs a technician.
- How Long Should A Heat Pump Last?liveTypical heat pump lifespan, what affects it, and signs replacement may be close.
- How Often Should A Ducted Heat Pump Be Serviced?liveHow regular servicing helps ducted systems stay efficient, clean and reliable.
- Is a Ducted Heat Pump Worth It?liveWhen ducted heating and cooling makes sense for Auckland homes and larger spaces.
- Should I Leave My Ducted Heat Pump Running All Day?liveHow to balance ducted comfort, efficiency and daily operating habits.
- Should I Leave My Heat Pump On All Day?liveWhen steady operation helps comfort and when switching off saves more.
- Should I Leave My Heat Pump On Overnight?liveHow overnight use affects comfort, moisture and running costs.
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- Should I Repair Or Replace My Ducted Heat Pump?liveHow to weigh repair costs, age, reliability and replacement value.
- Should I Repair Or Replace My Heat Pump?liveA homeowner guide to deciding between another repair and a newer system.
- What Is Ducted Heat Pump Zoning?liveHow zoning works and why it can improve room-by-room comfort and control.
- What Size Ducted Heat Pump Do I Need?liveThe key factors that affect ducted heat pump sizing and performance.
- What Size Heat Pump Do I Need?liveHow room size, insulation and layout influence the right heat pump capacity.
- When Should I Replace My Heat Pump?liveSigns an older heat pump may be costing more than it is worth.
- Why Does My Ducted Heat Pump Keep Turning On and Off?liveCommon reasons a ducted system short cycles and what to check first.
- Why Does My Ducted Heat Pump Smell?liveWhat different ducted heat pump smells can mean and when servicing helps.
- Why Does My Heat Pump Make the Air Feel Dry?liveWhy heated air can feel dry and how to improve comfort indoors.
- Why Does My Heat Pump Smell?liveCommon causes of heat pump odours, from dust to drainage and maintenance issues.
- Why Is My Ducted Heat Pump Leaking Water?liveWhy ducted systems leak, what is safe to check, and when to book a repair.
- Why Is My Ducted Heat Pump Making Noise?liveNoises that are normal, noises that are not, and what they may point to.
- Why Is My Ducted Heat Pump Not Cooling?liveCommon ducted cooling faults and the checks that help narrow them down.
- Why Is My Ducted Heat Pump Not Heating?liveWhy a ducted system may lose heating performance and what can be done.
- Why Is My Ducted Heat Pump Using So Much Power?liveWhat drives ducted running costs and how design, settings and servicing matter.
- Why Is My Heat Pump Blowing Cold Air?liveWhat to check when a heat pump runs but does not deliver warm air.
- Why Is My Heat Pump Freezing Up?liveHow to tell normal defrosting from faults that need attention.
- Why Is My Heat Pump Leaking Water?liveWhy indoor or outdoor units leak water and when it signals a fault.
- Why Is My Heat Pump Making Strange Noises?liveCommon heat pump noises and what they can tell you about the system.
- Why Is My Heat Pump Not Cooling?liveCooling problems explained, from settings and airflow to service faults.
- Why Is My Heat Pump Using So Much Power?liveWhy power use rises and how sizing, settings and maintenance affect efficiency.
- Why Isn't My Heat Pump Remote Working?liveSimple remote-control checks before assuming the heat pump itself has failed.
- Why Won't My Heat Pump Turn On?liveCommon startup problems, power checks and when to call for help.
- Auto Mode vs Heat ModeplannedA practical guide to choosing settings that suit comfort and efficiency.
- Best Heat Pump Settings For WinterplannedA practical guide to choosing settings that suit comfort and efficiency.
- Can I Run My Heat Pump 24/7?plannedA practical guide to daily heat pump use and running-cost decisions.
- Heat Pump Defrost Cycle ExplainedplannedA guide to common heat pump behaviour, warning signs and next steps.
- Should I Turn My Heat Pump Off When I Go Out?plannedA practical guide to daily heat pump use and running-cost decisions.
- What Does Heat Mode Actually Do?plannedA practical guide to choosing settings that suit comfort and efficiency.
- Why Does My Heat Pump Need Refrigerant?plannedA guide to common heat pump behaviour, warning signs and next steps.
- Why Is My Outdoor Unit Steaming?plannedA guide to common heat pump behaviour, warning signs and next steps.
- Why Won't My Heat Pump Reach Temperature?plannedA practical guide to choosing settings that suit comfort and efficiency.
Condensation & Damp
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- Can a Heat Pump Stop Mould?liveHow heating helps damp homes, and why moisture control still matters.
- Does Ventilation Stop Condensation?liveHow ventilation reduces window moisture and what else affects condensation.
- How To Stop Mould Coming BackliveWhy mould returns and how airflow, warmth and moisture control help prevent it.
- How To Stop Window CondensationliveWhy windows get wet overnight and how to reduce indoor moisture.
- Is Drying Clothes Indoors Making Your Home Damp?liveHow indoor drying adds moisture and what helps limit dampness.
- Signs Your Home Has A Damp ProblemliveCommon signs of dampness and what they can mean for comfort and health.
- Why Are My Windows Wet Every Morning?liveWhy morning condensation forms and how to reduce it at the source.
- Why Does Mould Keep Coming Back?liveThe conditions mould needs and how to make recurrence less likely.
- Why Does My House Feel Damp?liveHow moisture, heating and ventilation affect the way a home feels.
- Why Does My House Smell Musty?liveMusty odours explained, including moisture, airflow and hidden dampness.
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- Why Is My Bathroom Always Mouldy?liveWhy bathrooms grow mould quickly and how extraction and airflow help.
- Why Is My House Damp?liveHow to identify likely damp causes and the right next step.
- Why Is My Wardrobe Going Mouldy?liveWhy wardrobes trap moisture and how to improve airflow around stored items.
- Why Is There Mould Around My Windows?liveWhy mould forms near glass and frames, and how condensation plays a role.
- Why Is There Mould Behind My Furniture?liveHow cold walls and poor airflow create hidden mould-prone spots.
- Does Double Glazing Stop Condensation?plannedA guide to moisture, mould and healthier indoor conditions.
- How Humidity Affects Your HomeplannedA guide to moisture, mould and healthier indoor conditions.
- Is Condensation Bad For Your Health?plannedA guide to moisture, mould and healthier indoor conditions.
- Why Are My Curtains Wet?plannedA guide to moisture, mould and healthier indoor conditions.
- Why Does My House Feel Damp Even With A Heat Pump?plannedA guide to moisture, mould and healthier indoor conditions.
- Why Is Condensation Worse In Winter?plannedA guide to moisture, mould and healthier indoor conditions.
Ventilation
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- Can Ventilation Remove Mould?liveWhat ventilation can and cannot do once mould is already present.
- Do I Need A Home Ventilation System?liveSigns a home may benefit from controlled fresh air and moisture management.
- Does Ventilation Help Allergies?liveHow fresher, filtered airflow may support a cleaner indoor environment.
- How Long Should You Run a Bathroom Extractor Fan?liveHow long extraction should run to clear steam and reduce bathroom moisture.
- Positive Pressure vs Balanced VentilationliveThe difference between common ventilation system types and where each fits.
- Should I Buy a Dehumidifier or a Ventilation System?liveHow each option tackles moisture and when one may suit better.
- Should I Install a Heat Pump or Ventilation First?liveHow to prioritise warmth, moisture control and whole-home comfort.
- Should I Open My Windows in Winter?liveHow winter airing affects moisture, warmth and indoor comfort.
- Can Ventilation Make A House Colder?plannedA guide to fresh air, moisture control and ventilation choices.
- Do Extractor Fans Prevent Mould?plannedA guide to moisture, mould and healthier indoor conditions.
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- Do Ventilation Systems Use Much Power?plannedA guide to fresh air, moisture control and ventilation choices.
- Does Ventilation Remove Cooking Smells?plannedA guide to fresh air, moisture control and ventilation choices.
- How Ventilation Improves Indoor Air QualityplannedA guide to fresh air, moisture control and ventilation choices.
- HRV vs ERV: What's The Difference?plannedA guide to fresh air, moisture control and ventilation choices.
- Should You Open Windows In Winter?plannedA guide to fresh air, moisture control and ventilation choices.
- Ventilation For New BuildsplannedA guide to fresh air, moisture control and ventilation choices.
- Whole-House Ventilation vs Opening WindowsplannedA guide to fresh air, moisture control and ventilation choices.
Home Comfort
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- Is It Cheaper to Heat One Room or the Whole House?liveHow heating strategy changes comfort, efficiency and cold-room problems.
- Should Bedroom Doors Be Open or Closed When Heating?liveHow airflow between rooms changes warmth and heat pump performance.
- Why Is My Bedroom Always Cold?liveWhy bedrooms lose heat and what helps make them more comfortable.
- Why Is One Bedroom Always Cold?liveHow room position, insulation and airflow can leave one bedroom behind.
- Why Is One Room Always Colder Than The Rest?liveCommon reasons one room stays cold while the rest of the home feels fine.
- Why Is One Room Colder Than the Rest of the House?liveHow layout, airflow and heat sources affect uneven room temperatures.
- Best Temperature Settings For ComfortplannedA practical guide to choosing settings that suit comfort and efficiency.
- Can A Heat Pump Heat The Whole House?plannedA guide to improving comfort across rooms, seasons and home layouts.
- How Insulation Affects ComfortplannedA guide to improving comfort across rooms, seasons and home layouts.
- Summer Cooling Tips For Auckland HomesplannedA guide to improving comfort across rooms, seasons and home layouts.
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- Why Are Some Rooms Harder To Heat?plannedA guide to improving comfort across rooms, seasons and home layouts.
- Why Is My Power Bill So High In Winter?plannedA guide to improving comfort across rooms, seasons and home layouts.
- Why Is Upstairs Hotter Than Downstairs?plannedA guide to improving comfort across rooms, seasons and home layouts.
Servicing & Maintenance
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- How Often Should I Service My Heat Pump?liveRecommended service timing and why maintenance protects comfort and efficiency.
- Can I Clean My Own Heat Pump?plannedA guide to maintenance timing, safe cleaning and when to book a service.
- DIY vs Professional MaintenanceplannedA guide to maintenance timing, safe cleaning and when to book a service.
- How Long Does A Heat Pump Service Take?plannedA guide to fresh air, moisture control and ventilation choices.
- How Often Should Filters Be Cleaned?plannedA guide to maintenance timing, safe cleaning and when to book a service.
- Signs Your Heat Pump Needs ServicingplannedA guide to fresh air, moisture control and ventilation choices.
- What Happens During A Heat Pump Service?plannedA guide to fresh air, moisture control and ventilation choices.
- Why Servicing Improves EfficiencyplannedA guide to fresh air, moisture control and ventilation choices.
Refrigeration
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- Commercial Refrigeration Maintenance ChecklistliveRoutine checks that help commercial refrigeration run reliably and safely.
- Commercial Refrigeration Maintenance GuideliveWhat regular maintenance covers and why it matters for business equipment.
- Refrigeration Leak SignsliveWarning signs of a possible refrigerant leak and why prompt repair matters.
- Signs Your Refrigeration Compressor Is FailingliveSymptoms that may point to compressor trouble before a full breakdown.
- When Should Commercial Refrigeration Be Replaced?liveHow to judge age, repair cost, reliability and replacement timing.
- Why Is My Commercial Fridge Using So Much Power?liveWhat causes high refrigeration energy use and how maintenance can help.
- Why Is My Display Fridge Warm?liveCommon causes of warm display fridges and what to check first.
- Why Isn't My Cool Room Holding Temperature?liveA practical guide to choosing settings that suit comfort and efficiency.
- Commercial Fridge Temperature GuideplannedA practical guide to choosing settings that suit comfort and efficiency.
- Commercial Refrigeration ServicingplannedA guide to fresh air, moisture control and ventilation choices.
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- Cool Room Maintenance ChecklistplannedA guide to improving comfort across rooms, seasons and home layouts.
- How Often Should Commercial Refrigeration Be Serviced?plannedA guide to fresh air, moisture control and ventilation choices.
- Ice Machine Not Making Ice? Common CausesplannedA guide to reliable commercial refrigeration and fault prevention.
- Preventative Maintenance ExplainedplannedA guide to maintenance timing, safe cleaning and when to book a service.
- Why Is My Cool Room Warm?plannedA guide to improving comfort across rooms, seasons and home layouts.
- Why Is My Display Fridge Icing Up?plannedA guide to reliable commercial refrigeration and fault prevention.
Indoor Air Quality
70 live7 planned
- Can Heat Pumps Remove Humidity?plannedA guide to moisture, mould and healthier indoor conditions.
- Can Ventilation Help Allergies?plannedA guide to fresh air, moisture control and ventilation choices.
- Controlling Dust And AllergensplannedA guide to cleaner indoor air, filtration and everyday comfort.
- Fresh Air Benefits For Your FamilyplannedA guide to cleaner indoor air, filtration and everyday comfort.
- Mould vs Mildew: What's The Difference?plannedA guide to moisture, mould and healthier indoor conditions.
- The Role Of Filters In Clean AirplannedA guide to maintenance timing, safe cleaning and when to book a service.
- What Affects Indoor Air Quality?plannedA guide to fresh air, moisture control and ventilation choices.