Business ProfileforFort Collins Heating & Air Conditioning

09-28-21: Fort Collins Htg and Air installed new water heater (WH) in my home. I paid the invoice (#****** $2249.38) upon completion. They emailed me copy of invoice (#******) for this work at the amount I paid. Same day they email the same invoice (#******) for $4301.38. ( I assumed this was an error as i had already paid and i have not heard anymore of this invoice.) 01-21-21: called for service as WH stopped working. no charge 03-07-21: called for service WH stopped working. no charge 03-28-21: called for service WH stopped working. no charge 04-04-22: received invoice (#****** $431.00) from them with description of replacing gas valve. The invoice is dated 03-28-22. I respond noting WH is still under warranty. 04-06-22: receive invoice (#******S $431.00) same invoice as previous, just details of work completed has been removed. I respond quoting the exact terms of their warranty and do not pay. 04-30-22: the WH stops working again, I call them and they claim to replace the gas valve again. 05-06-22: receive invoice (#******S $431.00) again They continue to send me an invoice for work which is clearly covered by their warranty and they removed the details of the warranty invoice and added an "S" to the invoice number and just state the amount due after i questioned them. I would appreciate help with this matter - the terms of their warranty state "1 year labor and 6 years WH" I don't think I should have to pay for something under warranty -*** ******