Hot water heat is still how a lot of Lancaster County homes stay warm, and it deserves a technician who works on it regularly. 717 Mechanical LLC covers every side of boiler care: installation & replacement, repair, and seasonal maintenance.
With over 14 years of experience, our technicians service gas, oil, and electric boilers feeding radiators, baseboard, and in-floor radiant loops. We work on all major boiler brands, including Navien, Weil-McLain, and Bosch, no matter who installed your system.
A lot of the housing stock around Marietta, Columbia, and Mount Joy went up long before ductwork was standard, and hot water heat is a big part of why those homes stay comfortable. A boiler warms the room itself instead of blowing hot air at it, so the heat feels even and holds between cycles, it runs quietly without pushing dust through the house, and it needs no ductwork at all.
Boilers are not the same animal as a furnace, and diagnosing one takes a different set of habits: pressure readings, circulator behavior, air in the loops, and how heat actually reaches the far end of the house. We do the real diagnostic work first and explain what we found in plain language.
Licensed & Insured
Hydronic & Radiant Specialists
14+ Years Experience
Whether your system is 40 years old or brand new, we start with a real diagnosis and a clear explanation of your options. Pick the service that matches your situation, or call and we'll help you sort it out.
New Systems & Replacements
High-efficiency conventional, combi, and system boilers sized to your home and your existing radiators or loops, with honest guidance on fuel type, efficiency, and financing.
Boiler InstallationFast, Honest Diagnosis
No heat, cold radiators, leaks, low pressure, or banging and kettling sounds: we find the actual cause and fix it, with priority scheduling for urgent repairs.
Boiler RepairSeasonal Maintenance
Our seasonal maintenance plans cover boilers: combustion and safety checks, pressure and expansion tank inspection, and bleeding the system so heat reaches every room.
Maintenance PlansNot sure where to start? Here's how we'd think about it:
No heat, cold radiators, or a leak right now? Start with boiler repair. If your home is losing heat fast or you see water around the unit, see our emergency HVAC service page - we offer priority scheduling for urgent repairs.
Boiler past 20 years, or repairs stacking up? It may be time to look at installation & replacement. We'll give you a straight read on how much life your system has left, and financing is available on new installs.
Rooms heating unevenly or the system sounds louder than it used to? That is usually air in the loops, a struggling circulator, or scale buildup, and it is exactly what an annual visit catches. Our HVAC maintenance plans cover boilers year-round.
Deciding whether to stay with hot water heat or switch to forced air? Our guide on boilers vs. furnaces compares hydronic and forced-air heat for older Pennsylvania homes, including what adding ductwork really involves.
Talk It Through With Us: (717) 468-9567
Preventative maintenance is one of the best ways to avoid costly repairs and keep your HVAC system running efficiently. Our maintenance plans include:
We believe every homeowner deserves access to reliable heating and cooling solutions, which is why we offer flexible financing options through companies we trust. Whether you need a new installation or a repair, you'll find a plan that fits your needs.
Learn MoreAs a family-focused HVAC company, our mission is to provide honest service with a personal touch. We treat every home as if it were our own, ensuring high-quality workmanship and lasting results.
As a family-focused HVAC company, our mission is to provide honest service with a personal touch. We treat every home as if it were our own, ensuring high-quality workmanship and lasting results.
Enjoy 10% off your next repair call with us.
Take $500 off the installation of a new unit.*
Looking for reliable HVAC services near Marietta, PA? We proudly serve Marietta and nearby communities, delivering expert heating, cooling, and indoor air quality services. Whether you’re in Columbia, Mount Joy, or Elizabethtown, our team ensures top-quality workmanship and fast, dependable service. Contact us today for all your home comfort needs!
In addition to serving Marietta, PA, we provide HVAC services to the surrounding Lancaster County communities and beyond, including but not limited to:
No matter where you’re located in these areas, you can count on us for prompt, reliable service.
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