Mountville sits on the Route 30 corridor between Lancaster and Columbia, which puts the borough only a short hop from the 717 Mechanical LLC shop in Marietta. That proximity matters when your air conditioner dies on a humid afternoon or the furnace will not light on a January morning: the truck that solves the problem is already close.
As a family owned company serving Lancaster County since 2012, we cover the full mechanical side of a Mountville home: air conditioning, furnaces, heat pumps, boilers, water heaters, and indoor air quality. We diagnose honestly, quote before we work, and offer priority scheduling for urgent repairs in the 17554 area.
Homes along the Route 30 corridor range from older borough houses with radiators and window units to newer construction with central air and high-efficiency furnaces. We work on all of it daily, which means whatever vintage of equipment lives in your basement or backyard, the technician who shows up has seen it before and knows where that model tends to fail.
Dial (717) 468-9567 and tell us what your system is doing. We will take it from there.
Family Owned & Operated
LOCALLY-OWNED & COMMUNITY FOCUSED
OVER A DECADE OF EXPERIENCE
Heating, cooling, and hot water are three jobs that one good contractor should handle together. 717 Mechanical LLC installs and repairs all three, which means the company that tuned your furnace last fall already knows your house when the water heater needs attention in spring.
Warm air from the vents, ice on the refrigerant lines, an outdoor unit that trips the breaker: each symptom points somewhere specific, and our technicians track the cause down before recommending anything. Schedule AC repair in Mountville and you get a diagnosis and a price, not a sales pitch.
Once a compressor fails or repair bills start stacking up, replacement is often the smarter spend. Our AC installation work starts with a load calculation for your specific house, and we install Armstrong Air, AirEase, and American Standard equipment along with ductless mini-splits where ductwork is impractical.
Book an air conditioner tune-up each spring and your system enters summer with clean coils, verified refrigerant charge, and tested electrical parts. Tune-ups cost little compared to the mid-July repair they prevent.
Summer in the lower Susquehanna valley is as much about moisture as temperature. An air conditioner that is properly sized and properly charged pulls humidity out of the house as it cools; one that is oversized or low on refrigerant leaves the air cold but damp. If your Mountville home feels sticky even with the thermostat satisfied, that is a solvable problem, and we solve it regularly.
When a furnace short-cycles, blows lukewarm air, or refuses to start, we repair it whatever the brand. When it is time for a new one, we install high-efficiency gas and electric furnaces sized to the home. And every fall, a furnace tune-up checks ignition, gas pressure, and the heat exchanger so winter holds no surprises.
A heat pump cools in summer and heats in winter from the same equipment, and modern units handle Pennsylvania cold far better than older generations did. We install ducted heat pumps and ductless mini-split systems, and we repair existing units of any brand.
Plenty of Lancaster County houses still heat with hot water, and we keep those systems running too: gas, oil, and electric boilers, repaired and maintained.
The hardest question in this trade is when to stop fixing and start replacing. Our rule is simple: we lay out the cost of the repair, the age and condition of the unit, and what a new system would run with financing factored in, then let you decide. Nobody at 717 Mechanical earns a commission for talking a Mountville homeowner into equipment they do not need.
A tank water heater rarely fails politely. If yours is rusting at the base, making popping sounds, or simply not keeping up, we install Bradford White replacements matched to your household's actual hot water demand. We handle the haul-away, the code-required connections, and the expansion tank, so the job is finished properly rather than just swapped.
Navien and NTI tankless units heat water as you use it instead of storing forty gallons around the clock. They suit busy households, tight utility rooms, and anyone planning to stay in their home long enough to benefit from the longer service life.
If allergies flare indoors or dust returns the day after you clean, the HVAC system is usually involved. Every bit of air in the house cycles through the ductwork several times an hour, which makes the air handler the most effective place to clean it. We can help with:
The systems that fail least are the ones somebody inspects every year. Our maintenance program schedules those inspections for you: cooling equipment in spring, heating equipment in fall, with reminders so nothing slips. Members also get a documented service history for their equipment, which matters for warranty claims and is worth real money when it is time to sell the house.
Nobody budgets for the furnace to die in February. Our financing options let qualifying Mountville homeowners replace failed equipment now and spread the cost over time instead of draining savings in one hit.
A dead AC in a heat wave or a cold house with kids at home jumps the queue. We provide priority scheduling for urgent repairs throughout Mountville and the Route 30 corridor, and our dispatcher will give you a realistic arrival window when you call.
Call Our TeamAlong with Mountville, our trucks regularly run to:
If you live between Lancaster and the Susquehanna, you are squarely in our territory.
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.
Service Finance PowerPay Wells FargoAs 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.*
Mountville homeowners do not need a contractor from across the county when 717 Mechanical LLC is a few minutes up the road. Since 2012 we have repaired, replaced, and maintained the heating and cooling systems of Lancaster County as a family owned business, and the Route 30 corridor is home turf for our technicians.
From a spring AC tune-up to a complete heat pump installation, from a Navien tankless conversion to Aprilaire humidity control, every job gets the same treatment: a clear diagnosis, a firm price, and work we are willing to put our name on.
Plenty of Mountville customers found us through a neighbor, a coworker, or a relative we had already worked for, and that is how we prefer to grow. A company this close to home cannot afford a bad job in a borough where everyone talks, and we would not want it any other way.
Call (717) 468-9567 for AC repair, heating service, or water heater work in Mountville, PA.
Prefer email? Send us a message and we will follow up with a free estimate.
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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