HVAC Maintenance & Tune-Ups

The A/C Techs Air & Heat LLC provides spring and fall HVAC tune-ups for homeowners across the Dallas-Fort Worth metroplex. Preventive maintenance is the single most cost-effective HVAC decision you can make. Most breakdowns we see in July are the result of something that could have been caught — and fixed cheaply — in April.

How Often Should HVAC Systems Be Serviced?

The HVAC industry standard — echoed by every major manufacturer — is twice a year: once for the AC before summer, once for the heating system before winter. Here's the cadence we recommend for DFW:

• March–May — AC spring tune-up before the first 90° day
• September–November — Heating tune-up before the first hard freeze
• Heat pumps — twice a year, every 6 months, since they handle both seasons
• Filters — check monthly, replace every 1–3 months depending on type and household

Waiting until the first 100° day to service your AC is how homeowners end up on a 5-day wait list during a DFW heat wave. Schedule maintenance in the shoulder seasons when we — and every HVAC company — have open appointment slots.

What's Included in a Tune-Up?

Our standard 18-point tune-up covers:

• Check and calibrate thermostat
• Inspect and replace air filter
• Measure refrigerant pressures (AC / heat pump)
• Measure superheat and subcooling
• Check electrical connections and tighten as needed
• Measure amperage on compressor and blower motor
• Clean condenser coil (outside unit)
• Inspect evaporator coil
• Flush condensate drain line and test safety float
• Check blower wheel and motor bearings
• Inspect ductwork for obvious leaks
• Test capacitors and contactors (AC)
• Clean flame sensor (gas furnace)
• Inspect heat exchanger (gas furnace)
• Test gas pressure and burner operation (gas furnace)
• Test safety switches (high-limit, pressure, flame proving)
• Lubricate motors where applicable
• Temperature differential test at supply and return registers

You get a written report showing what passed, what's borderline, and what needs attention. No upsell games. If everything's healthy, we tell you so.

What Does HVAC Maintenance Cost?

Typical pricing in DFW:

• Single-visit tune-up — $85–$175 per system (AC or heating)
• Annual maintenance plan (2 visits) — $150–$300 per system, often includes discounts on repairs and priority scheduling
• Filter-only service — included free when combined with a tune-up

A maintenance plan usually pays for itself when you need just one repair during the year — the included discount (typically 10–15%) and priority scheduling during peak season are worth more than the annual fee.

Does Maintenance Actually Save Money?

Yes. Published industry data from ENERGY STAR and Department of Energy field studies shows:

• A clogged condenser coil can reduce AC efficiency by 10–30%
• A dirty air filter can raise energy use by 5–15%
• Refrigerant 10% low reduces cooling capacity by about 20%
• A dirty flame sensor causes 95% of no-heat short-cycling calls
• Regularly maintained systems last 5–7 years longer on average

Translation: the $100 tune-up you skip in spring is the $400 electric bill surprise in July and the $1,200 compressor replacement in August.

Can I Do Any of This Myself?

Some of it, yes. Homeowner tasks that make a real difference:

• Replace the filter every 1–3 months — the single highest-impact habit
• Clear leaves, grass, and branches from around the outside condenser (2+ feet clearance)
• Rinse the condenser coil gently with a garden hose in late spring (from the inside out)
• Pour a cup of diluted bleach down the condensate drain cleanout every 2–3 months to prevent algae clogs
• Keep at least 2–3 supply registers open per return — closing too many starves the blower

What you shouldn't DIY: anything involving refrigerant, gas connections, or the heat exchanger. Those are licensed tasks with real safety and legal consequences for mistakes.

Do You Offer Maintenance Plans?

Yes. Our annual maintenance plan covers both seasonal tune-ups (spring AC + fall heating), includes a written system report each visit, and comes with priority scheduling during peak season and a discount on any repairs. No hidden auto-renewal tricks and no high-pressure upsell calls — we send one friendly email each spring and fall when you're due.