Al's Plumbing Excessive Charges, total ripoff Plano Texas

I've called this company for an emergency gas Leak in one of my properties. I have to admit that technician was very knowledgeable and willing to work with the issue but after looking at the charges they performed for 1.40 hours of their time I almost had a heart attack, $1,100.00 to find a leak detection. The work consisted in pressuring the gas through the pipe line to check for leaks, 10 minutes: Charge: $440. After this they go through all pipe fittings with a spay bottle filled with soap water to check for potential leaks: $660. Keep in mind that all Repairs are not included and they wanted to charge me an extra $900 to do repairs. The reason why I accepted this was because weather was very cold and didn't want to put my tenant in a Hotel for another 2 days but, If I would've done this the savings would've been $1000 because I ended up hiring another company to perform the repairs.
After all this caos I called Al's Plumbing to try to make an arrangement for reduction of payment since their rate is not AT ALL COMPETITIVE with the market . I spoke to the manager and he'd apologize for my frustration and transferred me to the boss's voice mail and as of today I never received any call back from anyone - Of Course- . My advise: "DO NOT CALL AL'S PLUMBING, HEATING AND AIR CONDITIONING" THEY ARE A “TOTAL R I P O F F” They are not different from any other company out there that will provide the exact same service for a fraction of the cost.  FYI: For those who ask, I ended up calling (((REDACTED))) .com very Honest, fair and excellent services.