AC & MVHR Maintenance Services
Professional servicing for air conditioning and heat recovery systems across Sussex
Expert AC & MVHR Maintenance Services
At Ernest Air Cooling, we understand that regular maintenance is the key to keeping your air conditioning and MVHR systems running efficiently, reliably, and cost-effectively. Our professional maintenance services across Sussex ensure your systems operate at peak performance while preventing costly breakdowns and extending equipment lifespan.
With over 21 years of experience servicing all major brands, our certified engineers provide professional servicing for your systems. From routine servicing to emergency repairs, we keep your air conditioning installations, ventilation systems, and MVHR heat recovery systems running smoothly year-round.
Service Benefits:
- Simple Service Pricing
Air conditioning servicing £95 plus VAT for one unit, down to £75 per unit for 4 or more. MVHR servicing from £155 plus VAT.
- All Major Brands
Expert servicing for Daikin, Mitsubishi, Vent-Axia, Zehnder and more
- Emergency Response
Rapid response service for urgent repairs and system failures
- Certified Engineers
F-Gas certified technicians with 21+ years of experience
Air Conditioning & MVHR Service Prices
Clear, simple pricing for a professional annual service. All prices are plus VAT.
Air Conditioning Service
One annual service, priced per indoor unit. The more units we service on the same visit, the lower the price per unit.
| Number of indoor units | Price per unit |
|---|---|
| 1 unit | £95 plus VAT |
| 2 units | £85 each plus VAT |
| 3 units | £80 each plus VAT |
| 4 or more units | £75 each plus VAT |
What the service includes
- Filter cleaning
- Performance check testing
- Essential system safety checks
- Refrigerant level monitoring
- F-Gas log book updated
Heat Recovery (MVHR) Service
Choose a basic service or a full service for your MVHR system
Basic Service
- Main unit stripped down
- Main unit hoovered and cleaned out
- Filters changed
Replacement filters charged separately.
Full Service
- Everything in the Basic Service, plus:
- All vents taken off
- Vents hoovered and wiped with chemical wipes
Replacement filters charged separately.
Why Regular Maintenance Matters
The numbers speak for themselves — regular servicing saves money and prevents problems
Up to 30%
Efficiency lost without regular servicing
5-10 Years
Extra lifespan with annual maintenance
90%
Of breakdowns prevented by regular servicing
Warranty
Maintained with annual professional service
Protect Your Investment
Regular maintenance isn't just about comfort, it protects your investment. An unserviced air conditioning system works harder, uses more energy, and is far more likely to fail when you need it most. An air conditioning service costs just £95 plus VAT for a single unit, a fraction of the £500-£2,000+ cost of emergency repairs or premature replacement. Plus, most manufacturer warranties require annual professional servicing to remain valid.
Expert Servicing for All Leading Brands
We maintain systems from all major manufacturers with brand-specific expertise
As certified technicians, we provide expert maintenance and repair services with genuine parts and manufacturer-approved procedures for air conditioning and MVHR systems across Sussex and the South East.
What Our Clients Say About Our Maintenance Service
"Ernest Air Cooling's maintenance service is excellent. They're thorough, professional, and always keep our system running perfectly. The annual service has saved us from any unexpected breakdowns."
Sarah Matthews
Residential Customer, Brighton
"We've been using their annual maintenance service for 3 years. Tim is incredibly knowledgeable and always explains what he's doing. Our energy bills have definitely reduced since starting regular maintenance."
James Wilson
Business Owner, Worthing
Our Comprehensive 18-Point Maintenance Checklist
Performance Testing
- Energy efficiency evaluation
- Airflow temperature analysis
- Pressure differential testing
- Thermostat accuracy check
- Compressor performance test
- System cycle timing review
Unit Maintenance
- Air filter replacement service
- Evaporator coil cleaning
- Condenser coil maintenance work
- Condensate drain line clearing
- Unit mounting bracket inspection
- Heat exchanger service check
Safety Inspections
- Refrigerant leak detection scan
- Electrical connection security check
- Operating mode function testing
- Fan motor performance analysis
- Safety control verification check
- Control system calibration work
Maintenance Service Questions
Common questions about AC and MVHR maintenance services
How often should I service my air conditioning or MVHR system?
We recommend annual servicing for both AC and MVHR systems. For air conditioning, inspect and clean filters monthly and replace them every 3-6 months. MVHR systems typically need filter changes every 6-12 months depending on air quality.
Regular maintenance improves efficiency by up to 15% and extends system lifespan significantly.
What maintenance tasks can I safely do myself?
For AC systems: dust external grilles, clean washable filters, check condensate drains, and ensure vents are unobstructed. For MVHR: check filter indicators, clean external grilles, and ensure vents aren't blocked.
However, heat exchanger cleaning, refrigerant work, and electrical components should only be handled by certified engineers.
How do I know if my system needs professional servicing?
Warning signs for AC include poor airflow, unusual odors, increased energy bills, or inconsistent temperatures. For MVHR systems, look for reduced airflow, musty smells, condensation issues, or noisy operation.
If either system hasn't been serviced in over a year, it's time to schedule a check-up.
What are the benefits of regular maintenance?
Regular maintenance provides up to 15% energy savings, extended system lifespan by up to 40%, improved indoor air quality, reduced emergency repair costs, and maintained manufacturer warranties.
For MVHR systems, proper maintenance ensures optimal heat recovery efficiency and healthy ventilation throughout your home.
How much does air conditioning servicing cost?
Our air conditioning service is priced per indoor unit, depending on how many units you have: 1 unit £95, 2 units £85 each, 3 units £80 each, 4 or more units £75 each.
All prices are plus VAT.
What happens during an AC maintenance visit?
During a standard AC maintenance visit, our engineer performs a comprehensive check including: cleaning or replacing air filters, checking refrigerant pressures and topping up if needed, inspecting electrical connections and controls, testing thermostat accuracy, cleaning the indoor evaporator coil, checking the condensate drain for blockages, inspecting the outdoor unit and cleaning the condenser coil, measuring airflow rates, and testing all operating modes.
The visit typically takes 45-90 minutes depending on the system size. Your F-Gas log book is updated at every service.
How often should MVHR filters be changed?
MVHR filters should be checked every 3-6 months and replaced when visibly dirty or when the unit indicates a filter change is needed. Most MVHR units have two sets of filters, supply and extract, and both need regular attention. In dusty environments, near busy roads, or during high pollen seasons, you may need to change filters more frequently.
Our MVHR services include changing the filters, with replacement filters charged separately. Between professional services, you can check and vacuum filters yourself to maintain good airflow and air quality.
What happens if I don't service my air conditioning?
Without regular servicing, air conditioning systems gradually lose efficiency—typically 5% per year, meaning after just a few years your system could be using 15-30% more electricity to achieve the same cooling. Dirty filters restrict airflow, forcing the compressor to work harder and shortening its lifespan. Blocked condensate drains can cause water leaks and damage to ceilings and walls.
Mould and bacteria can build up in the indoor unit, reducing air quality. Most critically, manufacturer warranties typically require annual professional servicing to remain valid—so skipping a service could void your warranty entirely.
Can you service systems installed by other companies?
Yes, we service and maintain air conditioning and MVHR systems regardless of who installed them. We work with all major brands including Daikin, Mitsubishi Electric, Samsung, Fujitsu, Toshiba, Vent-Axia, Nuaire, and Zehnder. If your current installer is no longer available or you're not happy with their service, we're happy to take over maintenance.
We'll conduct a thorough initial inspection to assess the system's condition and recommend any remedial work needed before setting up a regular maintenance schedule.
Do I need a maintenance contract or can I book one-off services?
No, there is no contract or plan to sign up to. You simply book a service when it is due.
We recommend one service a year for both air conditioning and MVHR systems.
What's included in the 18-point maintenance check?
Our 18-point check covers three key areas. Performance Testing: airflow measurement, temperature differential, thermostat calibration, refrigerant pressure check, energy efficiency assessment, and operating mode verification. Unit Maintenance: filter cleaning or replacement, indoor coil inspection, condensate drain flush, outdoor unit cleaning, fan motor check, and refrigerant leak detection.
Safety Inspections: electrical connection tightness, isolation switch check, earth continuity test, cable condition inspection, bracket and fixings check, and vibration assessment. Every check is documented in your service report.
Is maintenance included in the manufacturer's warranty?
Most air conditioning manufacturers, including Daikin and Mitsubishi Electric, require annual professional servicing as a condition of their warranty terms. If you skip a service and then make a warranty claim, the manufacturer may refuse it. Our annual service is designed to meet manufacturer warranty requirements.
As a Daikin Authorised Dealer, we can also register your Daikin products on the Stand By Me platform, ensuring your warranty is fully documented and any claims are processed smoothly.
Maintenance Insights & Projects
Ernest Air Cooling Becomes Daikin UK Authorised Dealer
What our Daikin partnership means for your air conditioning service and warranty support
Common MVHR Problems in New Builds
Real-world maintenance issues we've solved and how to prevent them
MVHR Installation in a Pulborough Eco Home
Long-term care and maintenance insights from a complete MVHR project
Ready to Schedule Your Maintenance Service?
Regular maintenance is the key to trouble-free operation and extended system life. Whether you need AC servicing or MVHR maintenance, our expert team is ready to help.