AC Pros
📍 Richardson, TX 75081
✓ State licence verified HVAC contractor
Hammack Service Company INC
📍 723 S SHERMAN ST STE 1, Richardson, TX 75081
Licence #18281 — active on the Texas Department of Licensing and Regulation register, valid to 05/20/2027. We check licences against state records; we do not inspect workmanship.
About this listing
Hammack Service Company INC is listed in Richardson, TX, in Dallas County, and holds Texas Department of Licensing and Regulation contractor licence #18281, current to 05/20/2027. Licensing for air conditioning and refrigeration work in Texas falls under Occupations Code Chapter 1302, which requires contractors to hold a licence before carrying out this work. Richardson sits in IECC climate Zone 3A — warm and humid, meaning hot summers with meaningful winter heating days, so systems are sized for both. New split-system air conditioners installed anywhere in Texas must meet a minimum of 14.3 SEER2 under the federal South-region standard — worth knowing when you compare quotes, since a cheaper unit that falls below it cannot lawfully be installed here.
Services
What HVAC work typically costs in Richardson
Before you call Hammack Service Company INC, it helps to know the going rate. These are national ranges for 2026 — ask any contractor for a written, itemised quote and compare it against them.
| Job | Typical cost |
|---|---|
| Diagnostic / service call | $75 – $200 |
| Capacitor replacement | $100 – $250 |
| Refrigerant recharge | $200 – $600 |
| Compressor replacement | $1,300 – $2,800 |
| Central air conditioner | $3,900 – $7,900 |
| Full HVAC (furnace + AC) | $5,000 – $12,500 |
Ranges from our AC repair cost guide and HVAC replacement cost guide. Richardson sits in a hot-climate market, where systems run more hours a year and wear out sooner than the national average.
How to check this licence yourself
Don't take our word for it — Texas publishes this for free, and it takes about a minute:
- Open the TDLR licence search.
- Search licence number 18281, or the business name Hammack Service Company INC.
- Check the status reads active and the expiry is in the future — ours shows 05/20/2027.
- Ask to see proof of liability insurance too. TDLR licensing does not cover that, and we cannot verify it.
A licence means the state has certified the holder to do this work. It is not a guarantee of workmanship, price or availability — see our contractor hiring checklist for what else to ask.