A lot of Boulder, Denver Highlands, and older Lakewood homes still heat with boilers. When one quits on a January night, you don’t need a lecture — you need heat, then a plan. We service cast-iron workhorses and modern condensing boilers without treating either like a mystery.
Common Front Range failures
- Air in the loops after a fill, radiators cold at the top
- Zone valves stuck closed, one floor freezing while another cooks
- A pressure-relief that’s weeping because the expansion tank is waterlogged
- Ignition or flame-sensor faults on high-efficiency units that haven’t been cleaned
Replacement without the upsell fog
If the heat exchanger is gone, we quote a replacement that matches your radiation — baseboard, panel rads, or in-floor — and the gas and venting the house can actually support. We don’t drop a modulating boiler on a system that needed a simple cast-iron swap, and we don’t ignore primary-secondary piping when the new unit requires it.
- No-heat diagnostics that start at the loop, not the parts cannon
- Zone valves, pumps, and expansion tanks
- High-efficiency swaps with correct venting