I had a geothermal HVAC system replaced (for upstairs in my 2 story house) and the installers were doing they're final hook up to my well pump so that they could begin testing. However, they determined that my well pump was seized. After checking on Angie's List, I decided to go with Mark Carlson Well and Pump. I called him that same day around 4PM and he came over the next morning promptly at 8:30AM. Mr. Carlson and his assistant 1) verified that my well was still providing water 2) tested my well pump, and in the end 3) replaced my 1/2 hp well pump with a 3/4 well pump with a 10 gal WATER WORK accumulator. My last pump didn't have an accumulator. They also removed the 2 old relays that were controlling my old well pump and my irrigation sprinkler well pump with solenoids. Additionally, they reinstalled and zoned the new well pump to both my HVAC units (one for the downstairs and one for the upstairs). Before, it wasn't zoned. Mr. Carlson and his assistant pretty much did everything that was mentioned in the 5 Mar 2015 review, ie. after the new pump was installed, they showed my how to drain and pressurize the accumulator. They answered all my questions I had during their installation and educated me on how the well pump worked and in how to keep the accumulator pressurized each year. In hindsight, I should have personally verified asked Mr. Carlson what size pump he was going to replace my old well pump with. After re-reading the first review on his service on 5 Mar 2015 and after doing some research on the internet, it looks like the price difference between a PENTAIR STA-RITE 1/2 hp and 3/4 well pump is about $265. That said, I marked fair for price on the review because the price with the 3/4 well pump replacement of $1250 seemed about right when compared to the 1/2 well pump replacement of approximate $985 mentioned in the first review for his company. He and his assistant were very respectful and professional. I marked NO in using him in the future because as of today, I wonder if I will be getting something more than what I need i.e. getting a 3/4 hp pump when all I needed was a 1/2 hp pump. With that in mind, I also want professionalism and quality from the vendors which I received from Mr. Carlson and his assistant. Who knows, I may still use him in the future.