4.9 Review Rating
1000+ Reviews
Residential HVAC Preventative Maintenance Services in Houston
We Test It So It Runs
Our AC preventative maintenance service agreement is the best way to assure that you get the most out of your heating and air conditioning system, extend its life, and ensure that it runs at its peak efficiency at all times. 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 system.
Our home HVAC maintenance services in Houston include cleaning, adjusting, and capacity testing. A thorough HVAC inspection includes checking freon pressures, checking voltage, checking amp loads on motors, compressors, and heat strips, adjusting or replacing belts, checking for out of balance components and excess vibration, check all electrical components and capacitors, clean components and electrical connections, thoroughly check for any damaged components or wiring, and clear drain lines and p-traps with chemical treatment and nitrogen. We also inspect ductwork for air leaks and missing insulation, and check thermostats to ensure proper operation and control.
What are the benefits?
- Correction of Problems and Issues Our certified technician will identify and solve any existing problems with your system before they escalate and become costly.
- Longer Equipment Lifespan Over the life of your system, you will experience lower total operating and maintenance cost with fewer disruptions. The better your system is cared for, the longer your system will last.
- Scheduled Service Reminders With a maintenance agreement, you’ll be notified in advance to schedule service.
- Maintenance Documentation Your HVAC technician will provide you with documentation to show that your heating and cooling systems have been cleaned and inspected.
- Priority Scheduling Priority service should your heater or air conditioner need repair or replacement – and at Douglas Mechanical, you come first!
- Discounted Pricing Maintenance agreements offer reduced prices on parts and labor, as well as new technology and needed repair services.
Our Maintenance Packages
Contact us for specific plan pricing.
Cooling Checklist
| 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 Checklist
| 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 |
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.
What Our Customers Say
Pleased With Service
I have a maintenance agreement with Douglas Mechanical and am pleased with service. Rider Rodriquez came today to check out my furnace, He was prompt and showed me that all voltage was correct. Also told me my battery was low on the thermostat which I had not noticed. Pleasant and friendly young man.
Winifred Nixon
Courteous and Professional
Eric came out for our annual furnace maintenance. He did a great job, was courteous, and professional (he also wore those shoe covers without us having to ask, which is a BIG deal for us). Thanks!!
Daniel Jackson
Very Knowledgeable
Jose P. came to troubleshoot my struggling HVAC system. He was very knowledgeable and up front about what he found. He provided several options to repair the system, not trying to upsell the most expensive option. Even though Douglas is fairly distant from my home, I will likely continue to do business with them.
Jim Rieck
