For Over a Century…
History
Across five generations, The Glass family—which eventually evolved to Centex Pump & Supply—has drilled, installed, and serviced water wells across six counties in Central Texas encompassing the city of Austin and towns like Dripping Springs, Blanco, Bee Cave, Wimberley, Driftwood, Johnson City and more.
In 1902 using horse-driven rigs, Frank Glass began drilling water wells for Austin, Dripping Springs, and the larger Central Texas area.
Almost 70 years later, Frank purchased Central Texas Drilling and has continued the company’s legacy of quality work. In 1991, Frank’s son, Aaron, took over the pump division of Central Texas Drilling and started his own company: Centex Pump and Supply.
Meeting customers’ water needs through expert drilling technique is more than a family tradition. It’s a family mission.

Experience is Key
before you drill



Select a water well driller that is established. This is very important when obtaining records concerning your water well, extended warranty, or pump. The Aaron Glass well drilling team, with five generations of Glass family experience behind it, should be able to provide the formation and common well depth in Austin, Dripping Springs, or another area within Central Texas.
When you are ready to have an estimate emailed, please contact Central Texas Drilling to provide information regarding your property.
Important: Once we have information about your property, we can also assist or direct you in obtaining any permits that may be required in your area.
When you receive your estimate, call to schedule a meeting at the property so the Aaron Glass Team can help you “spot your well site.” AARON GLASS LIKES TO DO WALK ABOUTS ON YOUR PROPERTY. When spotting your water well, we will be able to pick the most appropriate path leading into your property. Any necessary land clearing can also be discussed at this time. Please keep in mind that when spotting water wells, certain state and county laws apply, such as:
- The well must be 50 feet from from property line,
- 100 to 150 feet from any drain fields depending on the county and district,
- 50 feet from septic tank,
- And necessary cementing typically varies from 100-500 feet
Should you have any questions regarding estimates, permits, spotting, etc., please call Central Texas Drilling at 512.894.0555 and our staff will be happy to assist you in any way!
How to Insulate a Water Well
do it yourself
If you get in trouble, call us at 512.894.0555


Select a water well driller that is established. This is very important when obtaining records concerning your water well, extended warranty, or pump. The Aaron Glass well drilling team, with five generations of Glass family experience behind it, should be able to provide the formation and common well depth in Austin, Dripping Springs, or another area within Central Texas.
When you are ready to have an estimate faxed or mailed, please contact Central Texas Drilling to provide information regarding your property.
Important: Once we have information about your property, we can also assist or direct you in obtaining any permits that may be required in your area.
How to Insulate a Water Well
- Insulate all brass and PVC fittings using R19 fiberglass insulation. Make this waterproof by covering it with 2” electrical water tight tape (NOT DUCT TAPE!)
- Be sure to insulate completely around the pressure switch. Then use an all-weather burial type box to cover the switch, stuff insulation in this box and place over the insulated control center/pressure switch.
- Also, be sure to install a ½” or ¾” PVC or galvanized nipple, thread this into the female threads of the pressure relief valve (at the well head). Cover the pressure relief valve leaving an opening for the water to be able to spray out of the nipple (in the event that the pressure rises too high, the water will be able to escape).
- Wrap insulation around all of the plumbing leading up to and under the pressure tank. Stuff extra insulation under the footing of the tank and wrap the tank halfway up from the bottom.
How to Check Air in Pressure Tank
- Turn power off
- Drain water off pressure tank
- Check air with tire standard 100lb gauge; should be 38 psi
- If not, try adding air to tank with air compressor
- If it holds, check again in 3 days
- If it does not hold, call for service
How to Chlorinate a Water Well
- Locate ½” plug and/or vent pipe at top of well (should have ½” vent pipe or ½” blue plastic plug)
- Unscrew plug and install funnel
- Pour 3 gallons of bleach in (NOT CLOROX – call to check brand with us) followed by 5 gallons of water
- Turn hose-bib on at the pressure tank and run until you can smell chlorine, then shut off well for 6 hours (overnight)
- Flush well until smell of chlorine is no longer detected and chlorination is complete
Should you have any questions regarding estimates, permits, spotting, etc., please call Central Texas Drilling at 512.894.0555 and our staff will be happy to assist you in any way!
Frequently Asked Questions
FAQ
Possible Causes:
- Ants
- Bad Breaker
- Power Problems
Locate the control center. Check power to pressure switch located at pressure tank above pressure gauge.
Check overloads under control box. You should have 1 or 2 red overload buttons that can be tripped to restart the pump and motor.
If you have low pressure at the house, check water pressure at the well. If pressure is low at the well, then you probably need a service call.
If you have low pressure at the house, but good pressure at the well, then check any in-line filters you have between the house and the well.
If water is spraying out of pop-off valve at the top of the well-head, then turn the power off and call for service.