D&G Heating and Cooling | Expert HVAC Repair in West Mifflin, PA

Fluctuating boiler pressure is often caused by a leak in the system, a faulty pressure relief valve, or issues with the expansion vessel. These problems are common in our area due to older plumbing and seasonal temperature swings. Our technicians will perform a thorough inspection to locate the source and provide a precise repair to restore stable, efficient heating.

Absolutely. Thermostat malfunctions—like unresponsive controls or incorrect temperature readings—are frequently due to wiring issues, dead batteries, or a failing unit. We'll check the wiring, calibrate the device, or recommend a modern, programmable thermostat upgrade to improve your comfort and energy efficiency in your West Mifflin home.

If you notice loud noises (like kettling), leaking water around the boiler, a complete loss of heat, or the pressure gauge reading in the red danger zone, you should call for service right away. These are critical signs of potential failure that our local team can address quickly to prevent further damage and restore your heat.