Preventative Maintenance Programs for Commercial Businesses

Douglas Mechanical, Inc. provides commercial HVAC preventative maintenance in Houston. Preventative Maintenance is the best way to keep your commercial heating and air systems operating at peak efficiency and extend the life of your unit. An air conditioning system that runs at peak efficiency will save you considerable money on your energy bill down the road and extend the lifespan of your equipment and your building’s entire ventilation system. But effective HVAC preventative maintenance work requires a reliable, skilled and trustworthy professional in order to ensure that your time and money is never wasted.

Routine Maintenance

System Servicing

Emergency Assistance

New System Estimates

Air Quality Evaluation

Cooling Maintenance

Check:	Clean:
Thermostat operation	Blow down/bleach treat condensate drain
Filters	Clean condensing coils
Refrigerant levels and charge	Inspect evaporator cooling coils
Air temperatures across evap. coils	Electrical components
Air temperatures across returns	Electrical connections
Check for leaks
Capacitor strength
Pressure switches
Contactors
Airflow from blower furnace
Expansion Valve
Piston Operation

Heating Maintenance

Check:	Clean:
Thermostat operation	Blow down/bleach treat condensate drain
All safety controls	Clean and adjust pilot assembly and limit control settings
Burners and heat exchanger chamber	Flue exhaust pipe
Gas valve operation
Air temperatures across returns/supplys/furnace
Gas leaks in and around furnace
Gas dirt lines
Flex line connections
Amp loads from blower motor
Flue exhaust pipe
Airflow from blower furnance

A Cost-Effective Solution

Our comprehensive Houston commercial HVAC maintenance & inspection programs are designed to save you money through customizing intervals of annual, semiannual, monthly, or bimonthly. Let us work with you to find the most cost-effective solution for any commercial AC maintenance needs you have.

What Are the Benefits?

What We Inspect

Trane Comfort Specialist

Not every dealer is a Trane Comfort Specialist!

It’s a special designation awarded to the most qualified specialists. As a Trane Comfort Specialist, we are committed to the best installation, service, customer satisfaction and employee training. We ensure the job is done right, and if it’s not, we will make it right.