Delinquent Customers

[Ron]

Wife and I have been in business for 7 years now. 

Too many delinquent customers.  What do you other HVAC/R's do?
Convenience stores, pizza shops have got to be the absolute worst to collect from.

Any ideas would be appreciated. 

Ron Mc   HVAC/R

[TECH X]

Someone sent me this link,

http://www.contractordefense.com/

That would be good if we all inputed dead beat customers into this database.