717 Mechanical LLC is a family-owned American Standard dealer based at 2710 Maytown Rd in Marietta, PA. Since 2012 we have installed and serviced heating and cooling equipment for homeowners across Lancaster County, from Marietta, Mount Joy, and Elizabethtown to Columbia, Lancaster, Lititz, and Hershey, and today our installation lineup is built around American Standard air conditioners, furnaces, and heat pumps.
Buying from a local dealer means the same company sizes the system, installs it, stands behind it, and answers the phone when it needs service years later. Our technicians are factory-trained on the American Standard and Armstrong Air equipment we install, and we service all major brands, so we can also tell you honestly whether your existing system is worth keeping.
Ready to compare options? See our central AC installation and furnace installation pages, or call (717) 468-9567 for an in-home estimate.
Family Owned Since 2012
Local Install & Service
Factory-Trained Technicians
Lancaster County asks a lot of heating and cooling equipment: humid summers that run an air conditioner for hours at a stretch, and winters that keep a furnace or heat pump working for weeks without much rest. We chose to carry American Standard because the equipment holds up under that workload, the product line covers everything from a basic single-stage furnace to a variable-speed heat pump, and the parts and support we need to stand behind an installation are readily available. We pair it with Armstrong Air so we can match the right equipment tier to your home and budget.
American Standard's central air conditioner and heat pump lines run from dependable single-stage units to two-stage and variable-speed models that hold a steadier temperature, pull more humidity out of the house, and run quieter at the outdoor unit. Current models use SEER2-rated designs and the newer R-454B refrigerant that replaced R-410A.
Which tier makes sense depends on the house. A variable-speed system earns its price in a home that runs the air conditioner most of the summer or struggles with humidity; a single-stage unit is a sound choice for a smaller home or a budget-focused replacement. We size every system with a load calculation, not the nameplate on the old unit, and explain the trade-offs before you decide. Read more about our central AC installation in Marietta, PA or our ducted heat pump installation for homes that want one system for both seasons.
On the heating side, American Standard gas furnaces are available in standard-efficiency 80% AFUE models and high-efficiency condensing models in the 90s that vent through a side wall instead of the chimney. Two-stage and variable-speed blower options deliver longer, gentler heating cycles and even temperatures from room to room, which matters in the older two- and three-story homes common across Lancaster County.
A high-efficiency furnace paired with a properly sized American Standard air conditioner on the same ductwork is the most common replacement we do. Our furnace installation in Marietta, PA page walks through fuel type, AFUE ratings, and sizing in detail.
A furnace or air conditioner is only as good as its installation. The equipment is a fraction of the job; the rest is sizing, ductwork, refrigerant charge, venting, electrical, and commissioning, and those are what determine whether the system hits its rated efficiency and lasts fifteen years or fails in eight. Here is what buying from a local dealer changes:
Most American Standard furnace or air conditioner replacements are a one-day job; a full system with duct changes can run into a second day. Our crew arrives with the equipment on the truck, protects floors and the work area, removes and hauls away the old unit, sets the new equipment, and connects refrigerant, venting, condensate, and electrical to the manufacturer's specification. Before we leave we start the system, check the refrigerant charge and airflow, confirm the thermostat is wired and programmed correctly, and walk you through filter changes and basic operation. You get a written record of the model and serial numbers for your files.
Ask about warranty registration when your system goes in: the equipment warranty runs from the installation date, and most manufacturers also require documented annual service to keep the parts warranty in force, and our maintenance plan produces that record automatically with a spring cooling visit and a fall heating visit. Ask us for the current warranty terms on the specific model you are considering; they vary by product line.
A new heating and cooling system is a significant purchase, and we offer financing through Service Finance and Wells Fargo so it can be handled as a predictable monthly payment instead of a lump sum. Promotional terms change through the year; ask for the current offers when you schedule your estimate.
We will visit your home, measure, look at the ductwork and the existing equipment, and give you a written quote with options. Call (717) 468-9567 or contact us online.
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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 More717 Mechanical LLC installs and services American Standard heating and cooling equipment from our Marietta shop throughout Lancaster County and nearby Dauphin, Lebanon, and York County communities.
American Standard Dealer - Sales, installation, and service from one local company.
Factory-Trained - Trained on the American Standard and Armstrong Air equipment we install.
Upfront Pricing - Written quotes with options, no hidden fees.
Family Owned Since 2012 - Based in Marietta, serving Lancaster County.
Call (717) 468-9567 to schedule an in-home estimate.
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Contact UsLooking 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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