Certified HVAC Services in Mission, TX 78573 - Tom's Air Conditioning & Heating

1113 N Glasscock Rd, Mission, TX 78573

(956) 585-2254

Business Offerings

  • HVAC installation or replacement
  • HVAC system repair

Company Overview

Tom's Air Conditioning & Heating is a trusted HVAC provider serving Mission, TX, and the surrounding Rio Grande Valley. We specialize in resolving the most common and disruptive local HVAC problems, such as improper system sizing that leads to high energy bills and uneven temperatures, and sudden air conditioner failures during our extreme summer heatwaves. Our team of certified technicians provides precise load calculations to ensure your new system is perfectly matched to your home's needs. We also offer 24/7 emergency repair services to get your cooling back online fast when you need it most. As a locally owned and operated company, we are committed to reliable, honest service for our neighbors in Mission.

Q&A

Why is my new AC unit struggling to cool my Mission home, and how can you help?

This is often due to improper HVAC sizing, a common issue in our area. A unit that's too small runs constantly without cooling effectively, while one that's too large short-cycles, leading to humidity problems and wear. We perform a Manual J load calculation, which considers your home's specific square footage, insulation, window types, and local Mission climate to recommend a system that's perfectly sized for efficiency and comfort.

My AC stopped working during a heatwave. Do you offer emergency repairs in Mission?

Absolutely. We understand that an AC failure during our South Texas heat is more than an inconvenience—it's a health and safety issue. Tom's offers 24/7 emergency repair services for Mission residents. Our local technicians are dispatched quickly to diagnose the problem, whether it's a refrigerant leak, compressor issue, or electrical failure, and get your cooling restored as soon as possible.

What's the most important maintenance task to prevent a sudden AC breakdown in the Mission heat?

The single most critical task is keeping your outdoor condenser unit clean and clear. Our local environment means coils quickly get clogged with dust, pollen, and grass clippings, causing the system to overheat and fail. We recommend a professional pre-season tune-up, which includes a thorough coil cleaning, checking refrigerant levels, and inspecting electrical components to ensure your system can handle the extreme summer demand.

Business Location & Hours



Mon:Open 24 hours
Tue:Open 24 hours
Wed:Open 24 hours
Thu:Open 24 hours
Fri:Open 24 hours
Sat:Open 24 hours
Sun:Open 24 hours


Scroll to Top
CALL US NOW