Ventilation servicing and filter replacement in Auckland: restore air quality and keep your home dry.
We service positive pressure, balanced and extractor systems across Auckland. Maintenance only. We don’t sell or install new units, so our only interest is in how well your existing system performs.
Your ventilation systems get professional maintenance from a company that doesn't sell or install new units.
The Healthy Home Blindspot.
New Zealand Building Guidance recommends a minimum of 0.35 air changes per hour in occupied rooms: the rate at which fresh air replaces stale air. When that rate drops, CO₂ from normal breathing and pollutants from everyday activity build up rather than being displaced. Bedrooms get stuffy overnight. Condensation returns as moisture removal falls behind. The fan is running, but the air quality has quietly declined.
These systems were bought to make homes healthier. When they're not serviced, some stop delivering on that. A few make things worse.This is the Healthy Home Blindspot.
MiHT is right for you if...
Ventilation systems we service in Auckland.
Positive Pressure Ventilation Servicing & Filter Replacement Auckland
HRV, DVS, SmartVent and other brands. Filters replaced, fans cleared, ducting inspected and ceiling diffusers cleaned.
Balanced Ventilation Servicing & Filter Replacement Auckland
Mitsubishi Lossnay, Zehnder, Lunos, Alnor, Stiebel Eltron and other brands. Heat exchange core cleaned, filters replaced, ducting inspected and airflow verified
Extractor Fan Service Auckland
Bathroom fans, laundry extractors and rangehoods. Grilles, fans and ducting cleared of dust, lint and grease.
The MiHT Care Protocol.
Every MiHT visit follows the same five-stage process. It was built around a gap we kept seeing in the industry: homeowners paying for a service with no way to know what they actually got, or whether their systems were any better for it.
PLAN
Tell us which units you want serviced. Your price is calculated instantly.
You see exactly what is included and what it costs before you confirm anything.
Pick a time that suits you and book it yourself. Any time of the day or night.
UNCOVER
Before any work starts, every unit is photographed and its condition recorded. Your system's current airflow performance and component condition are documented before anything is touched. That starting point is what allows us to show you, at the end of the visit, exactly what the service achieved and what, if anything, still needs attention.
RESTORE
Your service follows a documented checklist built on industry best practice. Every booked unit has its key components cleaned thoroughly: filters, fan housings, ducting connections and diffusers. The contaminants that have built up since install or the last clean are removed so your system delivers the air changes it was designed for.
REVIEW
Once the work is done, you receive a written condition report with before and after photos of every unit we serviced. The photos focus on the areas that needed the most attention, and the report shows your system's pre and post service condition so the full improvement is documented. Any issues that need attention are noted clearly, whether that's a repair your system needs or something to keep an eye on at the next service. It is a complete record of your system's condition, yours to keep.
PROTECT
Once your service is complete, we take care of what comes next. Annual Care Plan customers have their next service automatically scheduled. We manage the timing, send the reminders, and book the visit. For one-off customers, we send a reminder when your system is next due so you never have to remember when you last had it serviced. Either way, your system does not get forgotten.
Not sure whether your system is performing as it should?
MiHT Care™ — Proactive Maintenance, Simplified.
The MiHT Care Plan takes the maintenance of your home energy systems off your list. Automatic bookings, a written condition report after every visit, and a technician who knows your system's history. Choose annual or biennial care and select only the systems you want us to look after.
Automatic scheduling & service reminders
Tailored care for your home’s exact systems
Includes photo reports + system performance check
Better airflow, lower energy bills, and fewer breakdowns
Common questions about ventilation servicing in Auckland.
Annual servicing is the standard recommendation for both positive pressure and balanced ventilation systems in New Zealand. If your system hasn’t been serviced in the last 12 months, that’s the starting point.
You can replace the filter on most systems yourself if you have the correct grade for your unit. What a filter change doesn't cover is the fan housing, ducting and diffusers. Organic growth accumulates behind the filter where it isn't visible, and ducting can work loose without any obvious sign at the vent. A professional service covers the full system, not just the filter.
Yes. We service all makes and models of positive pressure, balanced and extractor systems. HRV, DVS, SmartVent, Mitsubishi Lossnay, Zehnder, Lunos, Alnor, Stiebel Eltron and others.
If we find something beyond the scope of maintenance, we'll tell you clearly and refer you to a qualified installer or electrician. We don't repair or replace ventilation systems ourselves, which means we have no interest in recommending either unless it's genuinely needed. Any findings are included in your written condition report.
We stand behind our work. If you are not satisfied with the service, contact us and we will make it right.
Yes. The Healthy Homes Standards require functioning ventilation in specific areas of rental properties. A MiHT service confirms your ventilation systems are operating correctly and provides a written condition report that can be kept on file for your records. If you manage multiple properties, a Care Plan schedules servicing automatically across your portfolio.
Your ventilation system can appear to work while delivering significantly reduced performance. When a system isn’t delivering the required air changes per hour, CO₂ and other pollutants accumulate in occupied rooms even though the fan is running. A full service checks whether the unit is actually operating as it should.
A filter change addresses one component. A full service covers the entire system: fan units, housings, ducting, diffusers and intake areas. A filter change won't clear the organic growth that's built up behind the filter in the fan housing, and it won't identify ducting that's come loose or been damaged.
It's a deliberate choice. Companies that install and repair systems have an interest in recommending new units and paid-for fixes. We don't. Our business only works if your existing system keeps performing, which means our advice is about getting the most from what you've already bought.
Pricing starts at $249 inc GST for positive pressure systems, $349 for balanced systems and $135 per unit for extractor fans. Final pricing is confirmed at booking based on your system and the number of units. You can book a one-off service or set up an Annual or Biennial Care Plan, which schedules the service automatically each year or every two years. No lock-in.
Yes. We service positive pressure, balanced and extractor systems across Auckland. Your booking includes travel. No extra charges for location.
The guide to ventilation system types explains the difference between positive pressure and balanced systems and how to identify which you have.
Turn a system that has been running unserviced into one that is documented, maintained, and performing the way it should.
