San Antonio, Texas
Answering service for San Antonio contractors
For San Antonio HVAC, plumbing, electrical and roofing contractors: an assistant for the hottest of the big Texas metros by days above 90°F, that still knows what to do in a hard freeze.
Written by Christopher Gillig, who files the carrier registrations behind these numbers and configures the assistants. Last reviewed October 6, 2026.
The short answer
San Antonio has the longest summer of the big Texas metros, about 111 days above 90°F, and a handful of freezing nights that do disproportionate damage when they come. An answering service for a contractor here has to keep up with a summer of no-AC calls and a freeze morning of burst pipes. The assistant answers every caller at once, raises the emergencies, takes each address so the day can be routed, and texts anyone it misses, only ever as a reply, as Texas's newer texting law makes wise.
What is different about San Antonio
- San Antonio's airport averages 111 days a year at 90°F or above, more than Houston's 102 and Dallas-Fort Worth's 95, on the 1991 to 2020 normals. By that measure it has the longest summer of the big Texas metros, and the busiest months for an HVAC phone start earlier and end later.
- It also averages about 16 nights at or below freezing. That is rare enough that a hard freeze catches homes unprepared, and the February 2021 freeze showed what happens when a hard one arrives: burst pipes across the city on the same morning.
- The metro has 786 plumbing and HVAC establishments, three quarters with fewer than ten staff, a much smaller pool than Houston's. In a freeze or a heat wave each of them is overwhelmed at once, and callers try the next number fast.
- Electrical shops here average almost 18 staff, larger than plumbing and HVAC. The case for the assistant there is evenings and weekends, which the per-number setting can cover alone.
San Antonio's trades and weather
Counts cover the metro; weather is the airport.
Contractor establishments, San Antonio metro area. Census County Business Patterns, 2023.
| Trade | Establishments | Under 10 staff | Staff each, average |
|---|---|---|---|
| Plumbing, heating and air conditioning | 786 | 75% | 11.0 |
| Electrical | 526 | 73% | 17.8 |
| Roofing | 175 | 83% | 7.2 |
A year at the weather station, on NOAA's 1991 to 2020 normals.
| Station | Days 90°F+ | Nights 32°F or below | Heating degree days | Cooling degree days |
|---|---|---|---|---|
| San Antonio (SAT) | 111 | 16 | 1,494 | 3,132 |
A freeze morning in Stone Oak
- A hard freeze hits overnight and by 7am a pipe in a garage wall has split in a house in Stone Oak.
- The owner calls a plumber who is already on the third burst pipe of the morning; the assistant answers with its disclosure.
- Burst and water everywhere are emergency words, and the lead is raised as the caller describes it.
- It takes the address and a callback number, reads them back, and gives the plumber a full list of the morning's addresses to route between.
- The emergency text tells the caller to leave and call 911 if water reaches anything electrical.
What a San Antonio caller receives
missed call textback
This is Redline Plumbing, sorry we missed your call. What is going on, and where are you? Reply here, or BOOK to book.
On a freeze morning a San Antonio plumber cannot answer a tenth of the calls. The replies to this arrive with addresses, which turns a flood of calls into a route.
appointment reminder
Redline Plumbing is booked for Tuesday at 9:00 AM. Please clear access under the sink or tank. Reply if anything changed.
Repair visits after a freeze stack up for days. A reminder with a reply option turns a cancellation into a free slot for the next caller instead of an empty drive.
Questions San Antonio contractors ask
- Is it worth it for the few freezes a year?
- The freezes are the dramatic case. The everyday case is a summer of AC calls arriving while your techs are on roofs and in attics, and those are most of the calls you miss.
- Can it text customers about specials?
- No. The text-back only replies to people who called, and it never sends offers. Under Texas's SB 140 that is the narrowest and safest kind of text.
- Will callers mind talking to an AI?
- Some will, and they can hang up and still get a text. Most callers with a broken air conditioner care more about being answered than by whom.
Sources
- U.S. Census Bureau, County Business Patterns 2023, metropolitan areas (NAICS 238160, 238210, 238220)
- NOAA National Centers for Environmental Information, U.S. Climate Normals 1991 to 2020
- Texas Legislature, SB 140 (89th Legislature), bill history
- Reporters Committee for Freedom of the Press, recording guide: Texas
Every price is on the site
No quote and no sales call to find out what it costs. Creating the account and setting it up charges nothing: setup is billed when you submit your carrier registration, and the monthly charge starts when your number is live.
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