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Air Conditioning · Garland, TX

Why Can't My AC Keep Up When It's Over 100 Degrees Outside?: A GarlandHomeowner's Guide

This topic comes up regularly across Garland, from Dallas County to the rest of Dallas County. Here's what's worth knowing if you're local.

For Garland Homeowners

Garland, part of Dallas County, has its own mix of established and newer neighborhoods, and that mix shapes how often we see the specific issue this guide covers. Either way, the same honest approach applies: diagnose first, explain clearly, and never push work that isn't needed.

Garland, home to Garland ISD, is one of the larger cities in our service area, with housing stock spanning many decades of growth. That range means we regularly work on everything from older systems needing careful diagnostics to newer high-efficiency installs, often in the same neighborhood.

Downtown Garland
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What the Full Guide Covers

  • The roughly 20-degree rule
  • Why the thermostat reading and the "feels like" temperature can differ
  • When it's the heat, and when it's an actual problem
Read the Full Guide: Why Can't My AC Keep Up When It's Over 100 Degrees Outside?

Need help with this in Garland?

Call (817) 935-8540

Garland FAQ

Does a bigger AC system fix this problem?+

Not necessarily, and it can create new problems. An oversized system cools quickly without properly managing humidity, which can leave a home feeling clammy even at the set temperature. The better answer is usually a correctly sized system paired with good insulation and maintenance, not simply going bigger.

Should I lower my thermostat setting during extreme heat to compensate?+

Setting it well below a realistic target usually just means the system runs constantly without ever satisfying the thermostat, which doesn't actually get you there faster and adds unnecessary wear. A more realistic setting for the conditions, combined with good airflow and shading where possible, is usually more effective.

Does this apply to homes in Garland specifically?+

Yes. The guidance in this article applies to residential HVAC systems throughout Garland and the rest of our service area. If you want a read on your specific system, call us at (817) 935-8540 or request an estimate and mention you're in Garland.

Have a question about your system in Garland?

Call now or request an estimate, and we'll follow up with clear, honest next steps.

Call (817) 935-8540

Appointment windows reflect our best estimate and are not a guaranteed arrival time.