Mission A/C

Fiberglass or spray foam — which insulation is actually better for a South Texas home? The honest answer is that the difference between these two materials is more dramatic here in the RGV than it would be almost anywhere else in the country. It comes down to one thing fiberglass simply can't do: air sealing. When it's 105° outside and your attic is 150°, every gap that hot air can sneak through is heat your AC has to fight. We break down how both materials perform in McAllen's climate, what the real cost difference looks like, and where spray foam makes the most sense. 👉

Spray Foam vs. Fiberglass Insulation — Which Is Better for South Texas Homes? - Mission Air Conditioning Comparing spray foam and fiberglass insulation for your McAllen home? See how each performs in South Texas heat and humidity — and which one delivers better long-term results.

Your AC is running. You can hear it outside. You can feel air coming through the vents. But it's 82° in your house and it won't budge. Sound familiar? This is one of the most common calls we get from McAllen homeowners — and there are really only a handful of root causes. Some you can check yourself in five minutes. Others need a technician. We walk through all of them in this guide so you know exactly what you're dealing with before spending money on a service call. 👉

Why Is My AC Not Cooling? A Troubleshooting Guide for McAllen Homeowners - Mission Air Conditioning AC running but not cooling your McAllen home? Learn the most common causes — from refrigerant leaks to dirty coils — and when to call for service.

Replacing your AC is one of the biggest purchases you'll make as a homeowner — and in South Texas, picking the wrong unit is a mistake you'll feel every month on your AEP bill. The brands that work fine in Dallas can struggle here. The sizing that's right for a home in Houston might not be right for yours. We wrote a full guide covering what actually matters when shopping for a new AC in McAllen: efficiency ratings, brands that hold up in the RGV, compressor types, and what a proper installation should look like. 👉

Best AC Units for McAllen Homes: A Homeowner's Guide - Mission Air Conditioning Shopping for a new AC in McAllen? Learn which AC brands and system types perform best in South Texas heat, and what to look for before you buy.