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Claim This Business717 Mechanical LLC has operated as a heating contractor in Marietta, Pennsylvania for over a decade. The company holds a 5.000000-star rating from 141 reviews, reflecting consistent homeowner satisfaction across the Lancaster County region. They service multiple communities including Lancaster, Elizabethtown, Hershey, and Lititz, providing both residential heating system repair and new installation. As a family-owned business, their team handles service calls personally, ensuring every customer interacts directly with ownership rather than a call center.
The contractor distinguishes itself through 24-hour availability, meaning a homeowner facing a heating failure at midnight receives the same response priority as a morning service call. They offer financing options to spread the cost of major equipment purchases, and their showroom displays multiple heating systems for homeowner comparison. A notable partnership with Trane provides access to manufacturer-backed warranties, while their expertise extends to heat pumps, mini-splits, boilers, and package units for traditional homes and manufactured housing alike.
Homeowners repeatedly praise the rapid response during critical failures. Matthew Cozzi described how his furnace failed during the coldest week in over a decade, and 717 Mechanical arrived within hours, leaving electric heaters overnight while arranging next-day replacement. Olivia Landis noted the owner personally supervised her boiler installation, completing the project within a week while maintaining clear communication throughout. Crystal Cozzi highlighted a one-hour arrival window after her initial call, with technicians explaining repair versus replacement options before proceeding.
141 reviews averaging 5 stars create a near-unanimous recommendation pattern. Customers consistently cite response speed during emergencies, with multiple reviewers describing same-day or within-hours arrival during system failures. The owner appearing on-site for major installations and leaving temporary heating equipment during wait periods appear across multiple positive accounts.
| Sunday | Open 24 hours |
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| ThursdayToday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Gas furnace diagnostics, manifold repair, and complete Trane system installations with next-day completion available.
Heat pump repair, installation, and maintenance for residential applications including mini-split systems.
Boiler and hot water heater replacement, with combination units handling both space heating and domestic hot water.
AC repair and installation for traditional homes, covering cooling system diagnostics and new equipment setup.
Indoor air quality improvements including filtration upgrades and ventilation assessment.
Installation and repair of package heating and cooling units for mobile homes and modular structures.
Tank and tankless water heater repair and installation, with combination systems available for simultaneous heating needs.