Boiler Repair in Fort Worth: Hydronic Heating Service

Boiler or water heater? How to tell

• Water heater: a tank or tankless unit that feeds hot water to faucets and showers. Trouble looks like no hot water or a leaking tank. See water heater repair or water heater installation.
• Heating boiler: piped to radiant floors, baseboards or radiators, usually with a circulator pump, an expansion tank and a pressure gauge. Trouble looks like cold rooms, a falling gauge or a dripping relief valve.
• Combi boiler: one unit that heats the rooms and makes hot water for the taps. We check both sides.

Boiler problems we repair

• Pressure relief valve dripping or discharging.
• Leaks at fittings, valves, pump flanges, the boiler drain or the boiler itself.
• Pressure that keeps dropping, so the system needs frequent topping up.
• No heat, or one zone cold, traced to the circulator, zone valves, controls or trapped air.
• Banging, gurgling or kettling noises, short cycling, and controls that don't respond.

Relief valve dripping? What it is telling you

The relief valve is the boiler's safety outlet: it opens when pressure or temperature climbs past its rating. When it drips, the usual causes are a waterlogged expansion tank, a fill valve letting too much water into the loop, or a worn valve that no longer reseats. Replacing the valve won't fix high pressure, so we check the gauge, tank and fill valve first.

Leaks and pressure loss in a closed loop

A hydronic loop is sealed, so its pressure should hold steady. If you keep adding water, it is escaping somewhere: a weeping valve stem, a pump seal, a fitting behind a wall, or a relief valve dumping water down its drain line.

Fort Worth's hard water makes this worth fixing quickly. Every refill brings in fresh minerals and oxygen, which scale the heat exchanger and corrode pumps, valves and the boiler itself. If the loop runs through a slab for radiant floor heat, a hidden leak can show up as steady pressure loss or a warm patch of floor; that calls for leak detection.

What happens on a boiler service call

1. We ask what changed: the gauge reading, cold rooms, leaks or new noises.
2. We inspect the boiler, piping, valves, circulator, expansion tank, controls and venting to find the cause.
3. We explain the repair, or the case for replacement, before work starts.
4. We run the system and check pressure, circulation and heat in each zone.

Before the first cold front

In North Texas a boiler can sit idle from spring to fall, so problems show up on the first chilly night. DFW's average first freeze is around Nov 22 (as early as Oct 22 on record). A fall check covers the gauge, relief valve, expansion tank, circulator, leaks and air in the loop. Keeping the boiler running through a hard freeze helps protect loop piping in garages, attics and crawlspaces; see frozen pipes and maintenance and repairs.

Repair or replace the boiler?

Repair makes sense when one part has failed, such as a valve, pump, expansion tank or control. Replacement is worth discussing when the main unit leaks, failures keep coming back, parts are obsolete or the system no longer heats the space.

A replacement is sized to the piping, heating demand, fuel and venting, not just the old boiler. For boilers in commercial buildings, see commercial plumbing.

Boiler Repair FAQ

Call for boiler repair in Fort Worth

Cold zones or a dripping relief valve? Call (817) 755-5621. We serve Fort Worth neighborhoods from Riverside, Oakhurst and Six Points to Northside and Fairmount, plus nearby towns in our service areas.