Thomas was very helpful and honest and punctual. He figured out the reason behind the overflow issue and gave me quotes for toilet replacement and filter valve replacement this April. But due to budget, I was hesitant and unsure if I should replace the old toilet, though really would prefer a new one. But this November we made up our mind, to save money, we will just change the filter valve instead. We contacted Thomas, and he responded to us very quickly and came within two days to fix the issue. Meanwhile, this April, before he left, he also helped me cut off the water supply to temporarily fix the issue to allow us more time for decision. Really appreciated. He even noticed some other silicone missing issues in our bathroom. Will use again when needed.