Best Water Filtration System Installation in Denver CO

I asked for a quote on electrical service upgrade and HVAC installation. They quoted me for a smaller panel than I requested, and their A/C estimate was MORE THAN TWICE AS MUCH as other quotes I've received. They also tried to hard-sell me a new furnace and water heater, even though there's nothing wrong with my existing units. If you even get one other quote, you'll see that these guys are trying to get you to pay way too much.