When a Lancaster County heat wave settles in, your air conditioner has to keep up. 717 Mechanical LLC covers every side of home cooling: installation & replacement, repair, and spring tune-ups.
With over 14 years of experience, our technicians size, install, and service central air systems for homeowners in Marietta, PA and across Lancaster County. We're proud partners with Armstrong Air, AirEase, and American Standard, and we work on most major brands regardless of who put the system in.
You'll get a real diagnosis and a plain explanation of your options: no pressure to replace a system that still has years left, and no patching a unit that's past saving.
Licensed & Insured
Properly Sized Systems
14+ Years Experience
Every cooling job starts with a real diagnosis and a clear explanation of what we found. Pick the service that matches your situation, or call and we'll help you sort it out.
New Systems & Replacements
High-efficiency central air systems from Armstrong Air, AirEase, and American Standard, sized with a load calculation instead of a guess and installed by our own crew. Financing options available.
AC InstallationSeasonal Maintenance
A spring cleaning and performance check: coils, refrigerant charge, condensate drain, and electrical connections, so the system is ready before the first hot stretch. Tune-up specials are available.
AC Tune-UpNot sure where to start? Here's how we'd think about it:
House not cooling right now? Start with AC repair. Same-day service is often available, and if the heat is a health concern for someone in the home, see our emergency HVAC service page - we offer priority scheduling for urgent repairs.
System 12+ years old, or repair bills stacking up? It may be time to price out installation & replacement. Our guide on when to replace your air conditioner walks through the repair-versus-replace math, and financing is available on new systems.
Cooling fine, but summer is coming? Book a spring AC tune-up, or cover heating and cooling together with an HVAC maintenance plan.
Want to handle some of it yourself first? Our checklist on getting your air conditioner ready for summer covers the filter, condenser, and thermostat steps any homeowner can do, and where the pro work starts.
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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