This is my first time using Thumbtack and honestly, I am really satisfied with water heater installation from Walter. Our Water heater was leaking (19 years old) and needed immediate replacement since it was leaking. I was calling all over for the contractors for prices and they all ranged over $1000. Also, other contractors were willing to charge extra fees and unnecessary county code. Walter was professional and very kind. He explained in details about the water heaters and purchasing county code is not necessary. He also showed up at home depot 7 in the morning and picked all the necessary parts and water heater. All I needed to do was to make the purchase. Also, he delivered water heater to my home AT NO ADDITIONAL COST. He finished the work in a timely manner and cleaned up well. I am REALLY satisfied with his service. Walter is going to my plumber and I am going to introduce him to my friends and neighbours. His labour cost is very affordable and reasonable compare to other contractors. I was able to save hundreds of dollars in labour cost. Overall you will never regret hiring Hi solution and Walter is the guy. He is a licensed contractor.