Is there a way to lower Service Call Fees?

[Mike D.]

I frequently have small plumbing and HVAC repairs at my rental properties. Leaky drain pipe, bad HVAC thermocouple, bad thermostat etc that take less than 30 minutes to fix. Most of the plumbers and HVAC companies charge at least $90 to show up even if it's a 10 minute job.

Are there ways to negotiate lower prices if a certain amount of business is done each month?