Diamond Heating

We have been Diamond Heating customers since August 2009. Their service has always been excellent, which is why we chose this company to install our new furnace when our old one went kaput. We...

Diamond Heating has been rock solid reliable for us for at least 20 years. They recently installed a new Trane furnace for us that we love, and we have two gas fireplaces at either end of the...

Recently had them do work for me. They refused to give me an itemized bill. Says against there policies. They quoted me one product but installed another. I'm sure at a cheaper cost to them but...

I thought my heater wouldn't work because the wire to one of the battery compartments broke. Turns out it was just for the light and I didn't need a repair. So they started it up for me and didn't...

We live in Long Beach, WA, and got a quote from this company for adding propane service, installing a stove in our living room, and putting in a tankless water heater. Clearly, they know their...