These are the questions homeowners across Lancaster County ask us most, answered the same way we answer them in a kitchen or a basement: plainly, with the numbers that matter, and without a sales pitch.
717 Mechanical LLC has been repairing, replacing, and maintaining heating and cooling equipment from our shop on Maytown Road in Marietta since 2012. Over that time the same questions come up again and again: how long a furnace should last, whether a heat pump can really handle a Pennsylvania winter, why the water heater quit, and when a repair stops making sense. This page collects those answers in one place so you can get oriented before you call, or check something at eleven at night when the heat is acting up.
Every answer here is general guidance for the kind of homes we work in: brick and frame houses in the river towns, newer developments around Hershey and Lititz, and everything in between. Your system, your ductwork, and your basement will change the details, which is why each section links to the service page where we explain how we actually handle the job. If your question is not here, call (717) 468-9567 and ask. A straight answer over the phone costs nothing.
Jump to the answers below, or go straight to the service page for the equipment you are dealing with.
Central air, heat pumps in cooling mode, and the humid Lancaster County summers that push both to their limits. Questions about warm air from the vents, systems that run but never catch up, ice on the lines, and how long a central air conditioner should last before replacement makes more sense than another repair.
AC Repair in Marietta, PAGas furnaces are still the most common heat source in the homes we service, followed by boilers in the older row homes and heat pumps in newer construction. Questions about warning signs, the most expensive furnace repairs, what a tune-up covers, and why annual maintenance matters more for a furnace than for almost any other appliance in the house.
Furnace Repair in Marietta, PAA large share of the housing in Columbia, Marietta, and Elizabethtown was built for radiators or gravity heat and has never had ductwork. Ductless mini-splits heat and cool those homes room by room with no duct runs to retrofit. Questions about zoning, cold-weather heating, and what an installation involves are answered on the mini-split page.
Mini-Split InstallationWe repair and replace Bradford White tank water heaters and Navien and NTI tankless units. Lancaster County's hard water shortens the life of both and drives most of the calls we get: no hot water, not enough hot water, rumbling from the tank, and rusty discharge. Questions about causes, lifespan, and what a replacement involves.
Water Heater RepairOur maintenance plans cover a spring cooling visit and a fall heating visit, priority scheduling for members, and discounts on parts and repairs. For replacements, we offer financing through Service Finance and Wells Fargo so a new system can be handled as a monthly payment instead of a lump sum.
Maintenance Plans HVAC FinancingWe are based in Marietta and work throughout Lancaster County and the neighboring communities: Columbia, East Petersburg, Elizabethtown, Ephrata, Hershey, Lancaster, Landisville, Lititz, Manheim, Millersville, Mount Joy, Mountville, Palmyra, and Wrightsville. Same-day service is available when the schedule allows.
HVAC Service in Marietta, PAGas furnaces heat most of the homes we service, and they generate more questions than any other piece of equipment: what the warning signs mean, which repairs are worth making, and how much life is left. If yours is acting up, our furnace repair in Marietta, PA page explains how a diagnostic visit works; for fall service, see the furnace tune-up page.
Central air, heat pumps, and the whole-system questions that come up when a house is not comfortable: how long the equipment should last, which system makes sense for a Lancaster County climate, and when a repair stops being worth it. If the vents are blowing warm, start with AC repair in Marietta, PA; if you are weighing a heat pump, see heat pump installation.
Hard water is the story behind most water heater calls in Lancaster County. It shortens the life of a tank and scales up a tankless unit that is not descaled. We service Bradford White tanks and Navien and NTI tankless units; see tank water heater repair for diagnostics or tankless water heater installation if you are considering a conversion.
How to pay for a replacement, and how to keep the equipment you have out of the repair queue. Details and application links are on our HVAC financing page, and plan coverage is spelled out on the HVAC maintenance plans page.
The answers above cover the questions we hear most, but every house is different. If you are looking at a repair estimate, a system that is acting up, or a replacement decision and want a second opinion, call (717) 468-9567 or contact us online. For longer reads, our HVAC tips and resources cover repair-or-replace decisions and seasonal prep in more detail.
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