Water heater replacement in Boulder, CO

“I cannot recommend William and 5280 Denver Plumbing highly enough.For several years, whenever we discussed replacing our two traditional water heaters with a tankless system, we were repeatedly told by multiple plumbers and contractors that it either wasnt possible in our home or wasnt a practical option because of the finished basement location and venting requirements. We had essentially accepted that tankless wasnt going to happen.William was the first person who took the time to thoroughly evaluate the installation, inspect the space, and develop a plan that would actually work. Instead of immediately saying it cant be done, he focused on figuring out how to do it correctly.From the beginning, communication was outstanding. He visited the home, answered questions, explained the process, provided proof of equipment orders, shared updates throughout the project, and kept us informed whenever shipping delays affected scheduling. We always knew exactly where things stood.What impressed me most was the pride he takes in his work. He genuinely cares about quality, attention to detail, and building a system that will last. He took time to explain the Navien equipment, recirculation system, filtration upgrades, venting requirements, warranty benefits, and future expansion options so we understood exactly what we were getting.In a world where many contractors rush through jobs, William stood out because he was focused on doing the installation the right way rather than the fastest way. His professionalism, transparency, and craftsmanship gave us confidence throughout the entire project.If youve been told a project cant be done, especially a difficult tankless conversion, I would strongly recommend talking with William before giving up on the idea. He turned something we had been told was impossible for years into a reality.Thank you again for the excellent work, communication, and dedication to quality. We couldnt be happier with the outcome.”

“Robert assessed our current HVAC system for repair/replacement as a previous contractor had identified problems that would require either repair/replacement and a range of options and prices for each. Robert identified similar options and range of prices similar to the other contractor and we ultimately decided to go with Horizon as a result of his information.”

“heater replacement. I look forward to working with them in the future for my heating, plumbing and air conditioning needs.”

“Gave me multiple options to replace my water heater. We decided to give it a go. We decided while they were at Home Depot standing in line to change plans and have them re-run our venting. They said no problem they could still complete the job the same day. The value and workmanship was amazing. We will call Prime anytime we have plumbing issues.”

“Mike was able to come out on Christmas Eve to take care of a gas leak in my water heater. Mike came ready to do the work and did additional work as he already had the parts on hand! Can’t thank him enough for saving our renters on such a short time frame.”

“Blue Thunder came in and took a look at the water heater, was able give us an estimate and replace the whole water heater all in the same day. He even was able to pinpoint different issues that he noticed and was able help us understand what was happening I can't state how grateful I am to them for getting this done so quickly and would reccomend them to everyone!”