Enviro-Tech Mechanical Services is a top quality, full-service company for air conditioning and refrigeration sales and service. Utilising the latest techniques and equipment, Enviro-Tech Mechanical is on the leading edge of the HVAC and Refrigeration industry. They provide solutions that give customers confidence that their systems will perform; and services that protect and extend their customers’ investment.
Quoted from – Uptime - Strategies for Excellence in Maintenance Management page 84 (second addition)
“A conservative “rule of thumb” is that unplanned running repair work will cost at least 50 % more than fully planned and scheduled work, emergency work will cost 3 or more times as much.
A ration of 1 to 1.5 to 3 times can be used to estimate the breakdown of work cost if you know the rations of planned and scheduled, unplanned, and emergency work.”