Air Conditioning Service Vienna & Lower Austria

Professional maintenance for refrigeration, air conditioning, ventilation & heat pumps

Air conditioning maintenance when it matters most – reliable, hygienic, and transparent

A poorly maintained refrigeration, air conditioning, ventilation system, or heat pump will cost you more than you think: higher energy bills, unplanned breakdowns, bacterial growth in the indoor air – and in a worst-case scenario, personal liability because the legally required maintenance record is missing.

KUSTEC services your refrigeration, air conditioning, ventilation, and heat pump systems:

• Professionally ✔
• Dokumented ✔
• On time ✔

For businesses and industries in Vienna and Lower Austria. Clearly structured and transparent.

Maintenance – the annual service

Maintenance is mandatory at least once a year for all commercial refrigeration, air conditioning, ventilation systems, and heat pumps (AStV, KAV). Depending on the system (e.g., refrigeration system, chilled water system, monosplit, multisplit, VRF, heat pump, ventilation system), different maintenance tasks must be performed. For monosplit and multisplit air conditioning systems, these include:

• Inspection and cleaning of the air-cooled condenser (outdoor units)
• Inspection and cleaning of wall-mounted units, cassettes, and ceiling-mounted units (indoor units)
• Inspection, cleaning, and disinfection of the indoor unit's coil
• Visual and functional inspection of all safety-relevant components
• Leakage and functional testing
• Checking operating temperatures
• Complete maintenance documentation

Why this is important: Germs, Legionella bacteria, and mold can quickly form in drip trays, fans, and ventilation ducts—especially in systems that are rarely used. Maintenance protects not only your system but also your health.

Repair & Troubleshooting

In addition to routine maintenance, we also handle fault diagnosis and repair of your refrigeration, air conditioning, ventilation system, or heat pump. From refrigerant leaks and compressor problems to electronic controls – our specialists know the most common causes of malfunctions and resolve them efficiently.

• On-site fault diagnosis
• Refrigerant charging
• Leak testing
• Replacement of wear parts and components
• Commissioning and functional testing after repair

Natural refrigerants – also for service

As a company that relies on natural refrigerants such as CO₂ (R744) and propane (R290), we also apply this expertise to our service. We operate in accordance with the F-Gas Regulation and, wherever possible, use environmentally friendly alternatives to synthetic refrigerants – fully in line with our mission statement: cooling for a green future.

Frequently asked questions

What risks does a company face if it doesn't have its refrigeration, air conditioning, ventilation, or heat pump systems regularly serviced?

The consequences are more serious than many operators expect – and they often affect multiple levels simultaneously.

• Administrative Penalties The Workplace Ordinance (AStV) mandates an annual inspection of air conditioning and ventilation systems. Failure to comply can result in administrative penalties of up to €16,659 per violation for the personally responsible managing director or operations manager. For refrigeration systems using fluorinated refrigerants, additional penalties of up to €14,000 apply under the EU F-Gas Regulation.
• Liability for Damages – Without Limits Anyone who violates maintenance obligations is liable under civil law for all resulting damages – and bears the burden of proof. Typical scenarios include Legionella from neglected humidification systems, fires caused by defective compressors, or refrigerant leaks resulting in personal injury. In cases of serious injury or death, the responsible party also faces criminal charges for negligent bodily harm or manslaughter.
• Insurance Coverage Voids Business and machinery insurance policies contain clauses regarding obligations: Anyone who fails to comply with statutory maintenance obligations risks having their insurer completely refuse coverage in the event of damage. The entire cost of the damage then remains with the company – regardless of the amount.
• Business interruption and destruction of goods Unplanned equipment failures cost many times more than regular maintenance. In food, pharmaceutical, or warehouse operations, a cooling system failure can lead to the complete destruction of goods within just a few hours.
• Official closure In cases of serious defects, the labor inspectorate can order the immediate shutdown of the equipment. Repeated violations can also result in the revocation of the business license.

✅ KUSTEC reliably handles your maintenance obligations – with documented inspection reports that are legally sound in the event of damage. Contact us.

How often does a refrigeration, air conditioning, ventilation system, or heat pump need to be serviced?

At least once a year. For commercial systems or intensive use, we recommend servicing before the cooling season (spring) and again before winter. For commercial systems, servicing is mandatory at least once a year (AStV, KAV).

Do you provide on-site service for commercial and industrial clients?

Yes. We serve commercial and industrial companies in Vienna, Lower Austria, and the surrounding area.

Do you also provide on-site service for private clients?

No. We exclusively serve commercial and industrial companies.

What happens if a defect is discovered during servicing?

We will inform you transparently on-site and, if necessary, provide a repair estimate.

Contact us for a free, no-obligation quote or to schedule a service appointment.