The tankless heater was installed for the agreed upon price. 3G Plumbing failed the city inspection 3 times before passing. The city inspector required the need for a larger gas meter, several gas regulators and vent pipe of which none was initially installed by this 3G Plumbing. Later I started having water heater performance issues and through my telephone conversation with the equipment manufacturer I learned that 3G Plumbing did not install an exhaust vent pipe in order for the tankless heater to be in accordance with the warranty. I had to hire another plumbing company to correct the shoddy work of 3G Plumbing in order for the manufacturer to honor the equipment warranty. Buyer beware! Do not hire this company for tankless water heater purchase and installation. They are not qualified.

I was referred to Ryan by a friend at work.  I called Ryan and he was at the house anytime I was available for a walk through quote.  I initially needed some 4" sewer replacement as the old 1950's cast iron had rotted out under the house.  He came in and looked it over as well as suggested additional work I might need in the future as I had other led and cast iron sewer stuff starting to fail.  Most other companies when coming out for a quote will not really get into the details, but rather just quote some standard cost, or even charge you a lot of money to come out, do test, etc., but Ryan took the extra time and steps to really check out what I needed and what the issues really were under my house.

After a lengthy discussion about the initial work, I also inquired about cost to go ahead and get rid of all the other corroding cast iron and led, as well as discussed my overall goal of replacing all the old copper pipe in my house and placing a new main shutoff valve. 

Ryan individually quoted each out for me as well as a total cost package.  He quoted a great price for all the services I wanted done on my old house.  He scheduled his guys right away and they were out at the house almost the next day starting work.  I did a detailed walk through with Ryan before his team started, in order to go over the entire scope of work.  He is a great guy, very friendly and personable, and answered any questions I had and made me feel very at ease with the work to be performed.  The guys which came out to the house were all very knowledgeable with any questions I happened to have concerning the old sewer and old piping.  Due to the amount of work, it took them about 2 days to finish all the planned work.  They made sure at the end of each day I had sewer and water working for my home.

I would recommend 3G Plumbing and Backflow over other big named companies in the DFW are

Work was performed as described in offer. Tech explained importance of work being done and evaluated current water heater.

Purchased the $99 deal. Was not contacted within the timeframe
specified so a week later I called Angies List to complain. 3G contacted me
within 24 hours to schedule an appointment. Things were very timely after that.
3G asked what I needed done and I mentioned I had some spigots needing repair
and if any time was left over I had some other very small items. I was told
there would only be time to repair the spigots.
3G came out to look at the leaking spigots and mentioned they would have to
order parts. I was asked how many I needed repaired, I said "two", he
said "We'll call you in a week when we have the parts", never asking where
the second spigot was (I have 4 of them.) Total time at the house: 10 minutes.
I was called within the week and told the parts were in, when would we like to
schedule? Appointment was made, they came out and repaired the spigots. Total
time at house: <20 minutes.
 When they were finished I asked them if they could do some more
things since there was still time on the clock. I was told that due to travel
time, multiple trips, having to order parts, my 1 hour was used up. Later I
received a bill for $62 for parts, $31 per spigot!
This was a great opportunity for 3G to gain another customer.
Unfortunately I felt they wanted to do the minimum they had to. From my
perspective they didn't fulfill the 1-hour of time and the $31/per spigot seemed
a little steep. Did they do the job: yes. Would I invite them back for my
larger project: no.

Ryan called before time slot & advised approx arrival. On time. Looked at problem  , left to get parts, returned & completed work. Both he & his helper. (Sorry, didn't get the red assistant's  mans name.) Unbelievable explanation of work + fantastic politeness! Would definitely use these people again. HONEST!!

3G was very responsive when I called to set appointment, was
on time and assessed the issue with the sink and repaired quickly. Very
impressed with their service!

They didn’t get back in touch with me and I had to call them. Once I finally got a hold of them we set up an appointment. They day of the appointment they emailed me and cancelled.

They were very polite. They were honest, but they could not complete the work in the time frame I needed.

I am changing out my old refrigerator, which has had a water line, to a new one, which I plan to buy without a water line.  The old copper wire needed to be removed, and I had been told by someone last week--long story-- that I would probably need a new seal for the valve.  So when I saw the Angie's List coupon for $95 for plumbing visit plus one hour of labor, that was the most cost-effective way to have the work done.  I also had questions re general plumbing maintenance, if I had time, per coupon one-hour time, after the plumber did the actual work.
Ryan and Chad showed up within the time frame they had given me.  Very, very nice people and very conscientious.  Removed the old copper wire and said they would be glad to haul it away, which I appreciated.  They then inspected the valve under the sink and tightened it and said I did not need to have a new seal, which would have cost, I think he said, $250.  So I was glad to hear that.  I asked him my questions re plumbing maintenance, which he answered and which was very helpful.  He explained that I actually have three valves under the sink, one for hot water, one for cold water sink, and one for a refrigerator line connection.  It was this third one that I had been told would need a new seal, but which he said didn't.  I also asked about intermediate cut-off places, and Ryan said houses of  this age didn't have them, they had started being required under city code after that.  And I asked him how to cut off the water in front of the house, and he showed me that .
The company really stood out in attitude and conscientiousness.  I was very much impressed.  I had bought the coupon because of price and because I was trying to get a plumber within a certain time frame, and I found them on the Angie's List Deals.  It turned out to be a great decision, both in the work ethic and in the courtesy and honesty of the people who came out.  They could have charged me for an expensive new seal, because I had told them I was expecting that one would be needed, but they didn't.  I really appreciated their work, as well as their courteous and can-do attitude, and I also appreciated the explanations for the plumbing maintenance that I had had questions on.
A-pluses in all categories.

Updated 8/5/14: Very severe issues have developed with the work . (updated rating as well)

did a good job.

unknown

He tried to upsell to fix another leak for $250! I think they are overpriced.

I was unhappy with the little service he provided and decided to find another big deal.

We purchased one of Angies List Deals, One Hour of Plumbing for a great price

Because our job was not an emergency scheduling was a breeze.

The technician arrived and went right to work.  He quickly found our problem and replace an old, destroyed gasket.  This is usually something well within my ability but because the shut off was old and I anticipated that my use of force on the valve would create a larger problem than the one we had, we gladly purchased this deal.

The technician fixed the problem within 15 minutes!  Since we purchased a 1 hour plumbing service, I asked if there were was anything else that could be done because we have an outside faucet that leaks slightly when it's turned on.  I was quoted $150 to fix if they could find parts to it or $250 for a new faucet.  I declined this offer and thanked the technician for fixing the hot water shut off valve.

unknown

The entered the house and proceeded to
Attach a water hose to the water heater.
Took the other end of the house out in the backyard.
Placed the end into a drain.
Turned  the water heater drain releasing the water.
Water traveled into the hose, outside into the drain.
After all the water drained out they took the hose off the water heater.
They then proceeded to roll up the water hose and put it in the truck
They then turned the water back on to fill up the water heater.
Then they left my house.
Need any more details?

I purchased the offer 3G Plumbing had on Angie's List for the purchase and install of a Rheem Tankless Water Heater. Ryan called within a few hours of the purchase, told me what I could expect in the way of time and work and we set the date for him to come. He showed up on time and with his assistant, they were able to drain and remove the old water heater, configure the proper gas and water lines to the new unit and vent this unit as required all within the time frame that they estimated it would take them. They did all of this without a hitch. They were very pleasant and respectful of my home and did their work neatly and quietly. They cleaned up after themselves when they were finished. They showed me all of the work they did and reviewed with me how the new tankless heater works. They left with me the owners/operator's manual with the serial number written down for easy access. This was just about as flawless as any installation experience could be. I highly recommend using 3G Plumbing and Backflow LLC for your plumbing needs!

it went pretty good

.

They were excellent. They didn't do much and it turns out they really didn't have to do much after all, but overall their customer service was excellent. I would recommend them to anybody but it was just a very brief and a very small job. So I just knew it was very brief and very short and all they do was unscrew the old one and screw the new one on and they were through and they left. They were brief but they were both very nice and they both put covers on their shoes when so that's all I had to judge them on. The price was way too high for what they ended up doing.

It was okay.  They just came and performed the service.  They came for a regular routine or maintenance.  They just looked at it and it was a simple operation I guess.

we had a tankless water heater go out. I called and talked to Ryan and he walked me thru the steps to see if it was electrical or mechanical. he stayed on the phone with me and fixed my issue. easiest repair call i ever had

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They were fast and efficient.