Boiler Leak Repairs & Control Board Installation Across the Denver Metro
Boiler Leak Repairs & Control Board Installation in Denver
Deft Plumbing repairs boiler leaks across the Denver metro and replaces failed control boards on residential gas boilers, with a flat-rate number in writing before we touch anything. A leaking boiler and a dead control board are two different faults, and we test to find which one you actually have instead of quoting a new boiler on sight. We are a licensed, bonded, and insured Colorado plumbing contractor, and diagnose-first is how every boiler job starts.
A puddle under the boiler, or a system that won't fire, can come from several places: a weep at a fitting or a circulator flange, a spent pressure relief valve, a waterlogged expansion tank, a cracked heat exchanger, or a control board that has stopped sequencing the burner, pump, and zones. Each one carries a different repair and a very different cost, so we confirm the source before we quote. If a targeted repair will hold, that is the quote you get. Call (720) 880-8064 if your boiler is leaking or won't start right now.
Finding Where a Boiler Is Actually Leaking
Water under a boiler is a symptom, not a diagnosis, and chasing the wrong source is how a cheap repair turns into a replacement quote. We trace the leak to its actual origin before we quote anything.
Most boiler leaks we find come from one of a handful of places: a fitting or union that has weeped loose over years of heat cycling, a circulator flange gasket, the pressure relief valve, the expansion tank connection, or the heat exchanger itself. The source decides the repair. Occasionally the water isn't the boiler at all but the supply line feeding it, which is a straightforward water and drain piping repair.
One thing we check first is whether the "leak" is really the pressure relief valve discharging. A relief valve dripping is usually not a bad valve. It is the system telling you pressure is too high, often from a waterlogged expansion tank. Replacing the valve without fixing the pressure just moves the problem. We test system pressure and the expansion tank charge before we touch the valve.
A leak at the cast-iron or steel heat exchanger is the one exception to repair-first. A cracked or corroded heat exchanger is not a gasket swap, and on an older boiler it usually tips the math toward replacement. We will tell you plainly which one you have.
Control Board Replacement: When the Board Is the Fault
The control board (the integrated ignition and primary control) is the brain of the boiler. It sequences the igniter, the gas valve, the circulator, and the zone calls, and watches the safety sensors. When it fails, the symptoms look like a lot of other faults: the boiler won't ignite, it locks out at random, zones stop responding, or the board shows visible scorching.
Control boards get replaced needlessly all the time, because a board swap is an easy answer to a hard diagnosis. We don't do that. Before we condemn a board, we test everything feeding it: the thermostat and its wiring, the transformer and 24-volt supply, the flame sensor and igniter, the gas valve, and the high-limit and pressure sensors. A bad sensor or a loose connection throws the same codes a dying board does, and swapping the board leaves the real fault in place.
When the board truly is the fault, we source the correct part for your boiler and install it, then confirm the full firing sequence before we leave. You get a flat-rate number for the board and the labor in writing before the work starts.
Flat-Rate Pricing, Permits, and What's Included
Every boiler leak repair and control board replacement runs on one flat-rate quote. We diagnose the fault, hand you the total in writing, and you know the cost before we pick up a wrench. No hourly surprises.
A like-for-like component repair (a fitting, a gasket, a relief valve, or a control board) typically does not trigger a permit. Any work that does require one, such as a new gas supply run or a boiler replacement, gets the permit pulled and the inspection coordinated by us as part of the flat-rate. Because the inspection schedule belongs to the city, we never promise same-day completion on permit-required work. What we promise is that it gets permitted and signed off.
If the diagnosis turns up a cracked heat exchanger or a boiler at the end of its service life, we quote both paths (the repair and the replacement) so you can decide with the real numbers in front of you.
Repair the Leak or Replace the Boiler?
We don't default to replacement. A control board, a fitting leak, a circulator gasket, or a relief valve is a part, not the boiler, and swapping one is a fraction of a replacement with years of service left in the unit.
Replacement starts to win when the leak is the heat exchanger itself, when the unit is 15-plus years old and a major component has failed, or when a major repair would cost 40 percent or more of a new boiler. Those are the thresholds we use, and we show you the math rather than asking you to take our word for it.
When it is a straightforward leak or board fault, we fix it and move on. When it is a full boiler repair, installation, or replacement, or a new gas supply run that needs to be permitted and pressure-tested, we handle that too. Either way, you get a diagnose-first inspection and a flat-rate total before any work begins. Ready when you are: (720) 880-8064.
Boiler Leak Repairs & Control Board Installation FAQs
Why is my boiler leaking water?
A boiler leak usually traces to one of a few sources: a fitting or union loosened by years of heat cycling, a circulator flange gasket, the pressure relief valve, the expansion tank connection, or the heat exchanger itself. One common case is the relief valve dripping, which is usually not a bad valve but the system telling you pressure is too high, often from a waterlogged expansion tank. We find the actual source before we quote, because fixing the wrong thing just moves the problem. Call (720) 880-8064 and we'll diagnose it.
Can a leaking boiler be repaired, or do I need a new one?
It depends on where the leak is. A weeping fitting, a circulator gasket, a spent relief valve, or an expansion tank connection are targeted repairs, and they cost a fraction of a replacement. The one exception is a leak at the cast-iron or steel heat exchanger, which on an older boiler usually tips the math toward replacement. We trace the leak to its origin first, then quote both the repair and, if it makes sense, the replacement, so you decide with the real numbers in front of you.
What does a boiler control board do, and how do I know mine failed?
The control board is the boiler's brain. It sequences the igniter, gas valve, circulator, and zone calls, and watches the safety sensors. When it fails, the boiler may not ignite, may lock out at random, may stop responding to zone calls, or the board may show visible scorching. The catch is that a bad flame sensor, transformer, or loose connection throws the same symptoms. We test everything feeding the board before we condemn it, because boards get swapped needlessly and the real fault stays in place.
Do you install the right control board for my boiler?
Yes. Once we've confirmed the board is actually the fault and not a sensor or a wiring issue feeding it, we source the correct control board for your specific boiler and install it, then run the full firing sequence to confirm the burner, circulator, and zones all respond before we leave. You get a flat-rate number for the board and the labor in writing before any work starts.
Does a boiler leak repair or control board replacement need a permit?
A like-for-like component repair (a fitting, a gasket, a relief valve, or a control board) typically does not require a permit. Work that does, such as a new gas supply run or a full boiler replacement, gets the permit pulled and the inspection coordinated by us as part of the flat-rate quote. Because the inspection schedule belongs to the city, we don't promise same-day completion on permit-required work, but we handle every step of getting it permitted and signed off.
Do you repair boiler leaks across the Denver metro?
Yes. We repair boiler leaks and replace failed control boards on residential gas boilers across the Denver metro. Every job starts with a diagnose-first inspection to find the actual fault, and you get a flat-rate number in writing before any work begins. If your boiler is leaking or won't fire right now, call (720) 880-8064.
Need Boiler Leak Repairs & Control Board Installation?
Contact Deft Plumbing for a free, upfront quote. No surprises, no hidden fees. We're licensed, bonded, and insured for your protection.
Call (720) 880-8064 or request a free estimate online.
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We provide boiler leak repairs & control board installation services across the Denver metro area, including Aurora, Lakewood, Arvada, Westminster, Thornton, Broomfield, and more.