Sierra Plumbing, Bellaire TX

I REGRET calling them to come repair my tankless water heater. The technician they sent blamed it on hard water clogging the heater, and instead of flushing it, sold me on installing a new tankless water heater, along with a recirculation pump and a new water softener. Paid him a substantial amount in cash, which should have been a red flag then and there. Three months later, I have water dripping down from a light fixture on the ceiling directly below the water heater. I call Sierra again, and they send the same technician to come take a look. The water heater is leaking on to the floor underneath because the pan underneath is not sealed properly. The heater shows an error message saying inadequate flow. The technician says he can come fix it 48 hours later but will need an advance payment to buy the parts. I make the mistake of trusting the man and paying a significant sum as an advance. And he completely ghosts me after that. Never showed up to fix the issue, and its been almost a month since and still Sierra Plumbing has done nothing to help solve the problem. I spoke to a supervisor once who said he will 'get back to me' and will email me and to reply back with details, but I never receive any email. So many calls since then and each time it goes to their 'answering service' that can only take a message and will not connect me to the supervisor. Lessons I have learnt from this whole experience with Sierra Plumbing
1. DO NOT PAY THE 99$ THEY SAY CAN GET YOU A SUBSCRIPTION SERVICE- That will do nothing to help you, not even get you a return phone call from a supervisor
2. THERE IS NO PHYSICAL OFFICE LISTED AT THE ADDRESS THEY SHOW ON maps. It is just a generic office building and Sierra Plumbing doesn't even show up in the building directory. Even their answering service will not give you their physical address so you can't go talk to them in person.
3. DO NOT TRUST THEIR TECHNICIANS. They will do a shoddy job that will leak 3 months later and will ghost you after taking your money.
4. DO NOT TRUST WHAT THEY SELL YOU. Their technician installed sold me and installed a water recirculation pump that I now learn (after speaking to the manufacturer) that it is completely incompatible with the tankless water heater that he himself installed
5. DO NOT PAY ANY MONEY IN ADVANCE.

Techs were outstanding to work with, did amazing work, and all in a very timely manner. They were the nicest crew we have ever hired and their customer service cannot be beat. They truly went above and beyond while still offering very reasonable pricing. Worked quickly and was clearly knowledgeable. Will absolutely use this company for future plumbing needs and pass along info to neighbors.

They did what they said they were going to do. I have an old house and they made suggestions on how to fix mistakes made in the past. Everything they said made good sense. Sierra Plumbing was recommended to me by another very satisfied customer. I plan to use them in the future.