HVAC Maintenance · Tomball
An annual check that ends with a straight report, not a pitch.
Maximize the lifespan of your air conditioner and furnace with a yearly visit that names what was checked, what was found and what can wait.
Checked once a year: coil, drain, wiring, charge and flame
A split system is two halves that have to agree: the outdoor condenser, and the indoor coil and air handler, which in most Tomball homes sit in the attic. A typical annual visit on that kind of system starts with what airflow depends on. The technician cleans the coils and confirms the condensate drain runs clear, because dust, pollen and a long cooling season collect in exactly those places. This is how the trade usually does it, not a published ASR checklist, so ask what your visit will cover.
Then come the electrical and refrigerant sides. The capacitor is tested against its rated reading, the contactor is inspected for wear, and the connections are tightened, since a loose terminal heats up and eventually fails. With gauges on the system, the technician checks how it is performing against the refrigerant it should be running on, and checks or replaces the filter. A drop in performance is a finding to be written down and explained, not a reason to sell you something on the spot.
On the heating side of a gas system, the same visit looks at the burner and the flame, the igniter and the flue, and whether the furnace starts cleanly and shuts off the way it should. Many systems here live in the attic, which is why a visit before the season you need is far easier than a repair call in the middle of it. If something turns up, ask for it to be named and priced before any work starts.
ICP rooftop package unit with its service panel open and a technician metering it under a deep blue sky
Reported plainly: feedback and suggestions, no pressure
Bailey Curtis, whose AC and heater were installed by ASR and who has used the company for checkups since, wrote after a summer visit: "There were no hard sales pitches, just honest feedback and suggestions for annual maintenance." The technician called ahead to say he was on his way, arrived on time, and kept Bailey informed throughout the service. That is a short list, and it is most of what a homeowner wants from a maintenance appointment.
Priscilla K describes the opposite from the companies she found first. She wrote that she was "pressured into "maintenance plans" that would supposedly lower the cost". After she called ASR, she says the technician explained what was wrong with her unit, and she describes the result as "No pressure, no scare tactics, just a clear diagnosis and a fair, reasonable price." The difference she names is not the equipment, it is how the conversation went.
Whether any recurring arrangement makes sense for your house depends on the system, its age and how hard it runs, so ask for the reasoning in plain words. What was checked, what was found, which items are urgent and which are only suggestions? If the answers are clear, you are in the position Bailey describes: you hear the feedback, and you decide what happens next.
Between visits: the filter, the outdoor unit and the drain line
The filter is the cheapest part of the system and the one most often forgotten. During heavy cooling season, look at it once a month, and replace it when it is visibly gray or you can no longer see light through it. Use the size printed on the filter frame, and set the arrow toward the air handler. Which grade of filter suits your equipment is a question for your technician, because a filter that restricts too much can starve a system of air.
Keep the outdoor unit clear. Give the condenser a couple of feet of open space, cut back shrubs and vines, and keep mulch, leaves and grass clippings off the fins. A gentle rinse of the outer fins with a garden hose, with the power off at the disconnect, removes surface debris. Skip the pressure washer, which bends the fins. If you are not sure, leave the cleaning for the annual check.
Know where your condensate line ends. If you see water in the pan under an attic air handler, a stain on the ceiling below it, or the system quits on a hot afternoon, call before it becomes a bigger repair. ASR Mechanical in Tomball holds Texas HVAC license TACLA85163E, and the number is (281) 351-5354. Family owned since 1997, with a 5.0 from 896 Google reviews.
"Appointments are very easy to arrange." Bailey Curtis, Google review, June 2026.