Does a furnace in Houston really need annual maintenance?

Yes, for a reason specific to this climate. Elsewhere the argument is wear from constant running. Here it is that the system sits idle in heat and humidity most of the year, producing corrosion, dust, and flame sensing problems that are predictable and cheap to prevent.

When is the best time to schedule?

Early fall, before the first cold front. Parts are available, schedules are open, and nobody is sitting in a cold house waiting for a supplier to open. September or October is far easier to book than the first week of January.

How often should I change the filter?

Look at it monthly and change it when it looks loaded rather than on a fixed date. A one inch filter in a house with pets or construction dust loads quickly, while a four or five inch media filter goes much longer.

Does maintenance keep my warranty valid?

Many manufacturers require that equipment be maintained and documented, so records matter. The terms vary by manufacturer and by unit, so read your own warranty paperwork rather than anyone's summary of it. We leave you a record of what was done and measured.

What if you find something wrong?

We show you what we found, explain what it affects, and give you a price in writing before touching it. If it is a safety issue such as a cracked heat exchanger, we will say so directly and explain why we do not want the furnace running until it is addressed.

Do you maintain heat pumps as well?

Yes, though the checks differ. There is no combustion to inspect, but a heat pump has a reversing valve, a defrost control, refrigerant charge, and auxiliary heat strips that all need verifying before winter. Tell us which you have when you call.

Furnace Maintenance in Houston, TX

Furnace Maintenance in Houston

Heating maintenance in a cold climate is about wear. Here it is about idleness: your furnace spends roughly nine months switched off in a hot, humid house, and what goes wrong in that stretch is quiet enough that you will not find it until the first cold morning. A fall check finds it while there is still time to order a part.

What happens while the furnace is off

Humidity is the main actor. Idle metal in a Houston attic picks up surface corrosion, electrical contacts oxidise, and the flame sensor develops a film that will keep the board from proving flame on the first call for heat. Insect nests and rodent damage are ordinary findings.

The blower, meanwhile, has been working since March. It reaches heating season with a loaded filter and a dusty wheel. That is the same air handler your furnace depends on, so airflow problems arrive dressed as heating problems.

What a real tune up includes

A visual inspection and a new filter is not maintenance. A furnace reports its condition in numbers, so we clean the flame sensor and burners, then measure flame signal, manifold gas pressure, temperature rise against the data plate range, duct static pressure, and blower amp draw.

We also test the safeties rather than noting that they exist. The high limit, rollout switch, and pressure switch are what shut the furnace down when something is wrong, and a failed safety stays invisible until the day it was needed. We finish with a heat exchanger inspection and a carbon monoxide reading.

When to schedule it

Early fall, before the first front. A part that needs ordering carries no urgency in October and considerable urgency in January. Beyond that, when a real front hits Houston every idle furnace in the region is asked to run in the same hour, and the calls stack up faster than anyone can drive.

What you get afterward

The readings, written down. Flame signal, gas pressure, temperature rise, static pressure, amp draw. They are moderately interesting today and genuinely useful next year, because a blower drawing more current than it did last fall is a bearing or a restriction announcing itself early.

If we find something, we show you and price it before touching it. A maintenance visit is not a sales call with a wrench in it.

What a heating tune up covers

Burners and flame sensorCleaned, then verified by measuring the flame signal the control board actually reads.
Full ignition sequenceRun from a cold start so every step is observed, from thermostat call to blower engagement.
Manifold gas pressureSet and confirmed against the manufacturer's specification for your equipment and fuel.
Temperature riseMeasured across the heat exchanger and compared to the range printed on the data plate.
Airflow and blowerStatic pressure and amp draw recorded, filter and blower wheel condition checked.
Safeties and carbon monoxideLimit, rollout, and pressure switches tested, exchanger inspected, carbon monoxide measured.

Furnace Maintenance, answered plainly

Yes, for a reason specific to this climate. Elsewhere the argument is wear from constant running. Here it is that the system sits idle in heat and humidity most of the year, producing corrosion, dust, and flame sensing problems that are predictable and cheap to prevent.
Early fall, before the first cold front. Parts are available, schedules are open, and nobody is sitting in a cold house waiting for a supplier to open. September or October is far easier to book than the first week of January.
Look at it monthly and change it when it looks loaded rather than on a fixed date. A one inch filter in a house with pets or construction dust loads quickly, while a four or five inch media filter goes much longer.
Many manufacturers require that equipment be maintained and documented, so records matter. The terms vary by manufacturer and by unit, so read your own warranty paperwork rather than anyone's summary of it. We leave you a record of what was done and measured.
We show you what we found, explain what it affects, and give you a price in writing before touching it. If it is a safety issue such as a cracked heat exchanger, we will say so directly and explain why we do not want the furnace running until it is addressed.
Yes, though the checks differ. There is no combustion to inspect, but a heat pump has a reversing valve, a defrost control, refrigerant charge, and auxiliary heat strips that all need verifying before winter. Tell us which you have when you call.