A tankless water heater heats water the moment you ask for it instead of keeping a tank hot all day, which is why homeowners switch for endless hot water and lower energy use. 717 Mechanical LLC covers the whole life of that system: installation & replacement and repair & descaling.
With over 14 years of experience, our technicians install and service tankless systems for homeowners in Marietta, PA and throughout Lancaster County. We're proud partners with Navien, and we also install and service NTI equipment along with most other major tankless brands.
A wall-mounted unit frees up the floor space a tank used to eat, and a well-maintained tankless heater often runs close to 20 years. We'll tell you plainly whether your home is a good fit before anyone talks about replacing anything.
Licensed & Insured
Navien Brand Partner
14+ Years Experience
Whether you're upgrading from a tank, chasing down an error code, or just want your unit descaled before the cold water season, here's where to start.
Upgrades & Replacements
Properly sized Navien and NTI systems installed with the gas, venting, and water connections done right, plus straight answers on efficiency and financing options.
Tankless InstallationRepair & Descaling
Cold water sandwiches, ignition faults, scale buildup, or a flashing error code: we find the real cause and fix it, with priority scheduling for urgent repairs.
Tankless RepairTraditional Storage Tanks
Tankless isn't the right answer for every home. A conventional tank costs less upfront, installs simply, and stays dependable, and we service those too.
Tank Water HeatersNot sure where to start? Here's how we'd think about it:
No hot water, lukewarm water, or an error code on the display? Start with tankless water heater repair. If you're completely without hot water, see our emergency HVAC service page - we offer priority scheduling for urgent repairs.
Still running a tank, or your tankless unit is near the end of its life? Look at installation & replacement. We'll size the unit for your actual hot water demand, and financing is available on new installs.
Unit still working, but hot water is slower to arrive? That's usually scale. An annual descaling and inspection restores efficiency, and it's included in our HVAC maintenance plans.
Not convinced tankless is right for your home? Compare it against a conventional tank water heater. Lower upfront cost, simpler install, and for smaller households it's often the sensible call.
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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