717 Mechanical LLC is a family-owned HVAC contractor serving Columbia, PA from our shop in Marietta, about ten minutes up Route 441 along the river. Since 2012 we have repaired, replaced, and maintained air conditioners, furnaces, boilers, heat pumps, ductless mini-splits, and water heaters for homes across the borough, from the row homes near the river to the newer houses out toward Route 30.
Columbia is a Susquehanna riverfront town with a lot of nineteenth-century housing, and that shapes the work we do here. Many homes have radiators and no ductwork, which means boiler service and ductless cooling instead of a standard furnace-and-central-air setup. We know those systems well, and we size and recommend equipment for the house in front of us, not the one on a brochure.
Need a repair today? Call (717) 468-9567 for same-day scheduling in Columbia, or send the form and we will call you back.
Family Owned & Operated
LOCALLY-OWNED & COMMUNITY FOCUSED
OVER A DECADE OF EXPERIENCE
Columbia sits on the Susquehanna where Route 462 crosses the Veterans Memorial Bridge to Wrightsville, a few minutes downriver from our Marietta shop. That closeness matters on a humid July afternoon when the air conditioner quits or a January night when the boiler will not fire: we can usually be there the same day, and we already know the borough's housing. 717 Mechanical LLC handles repairs, replacements, and seasonal maintenance for every major piece of comfort equipment in a Columbia home, so one call covers the whole house.
Warm air at the vents, an outdoor unit that hums but never starts, water pooling around the indoor coil: these are the calls we take from Columbia all summer. Our technicians handle central air conditioner repair on all major brands, diagnose the fault before quoting the fix, and carry the common parts (capacitors, contactors, fan motors) on the truck so most repairs finish in one visit.
When a compressor fails on a system past twelve or fifteen years, replacement is usually the better spend. We install central air conditioners sized by a load calculation for your actual house, and we walk through the repair-or-replace numbers with you on site before anything is decided.
A large share of Columbia's housing is brick row homes and twins built between the 1850s and the 1920s, and most of them have never had ductwork. Window units have been the only cooling option for a century. A ductless mini-split installation changes that without tearing into plaster walls: one outdoor unit on a small pad or bracket feeds several quiet indoor heads through a three-inch opening, each room gets its own thermostat, and the original trim, plaster, and closets stay exactly as they are. Cold-climate models also heat, which makes a mini-split a practical year-round answer for a third-floor bedroom, a rear addition, or a whole no-duct house.
A spring air conditioner tune-up catches weak capacitors, dirty coils, and low refrigerant before the first humid stretch off the river exposes them. Columbia homeowners who book ahead of the season get open scheduling and fewer mid-summer surprises.
Walk the blocks between Front Street and the Route 30 bypass and you will find house after house heated by a boiler and cast-iron radiators, many converted from coal to gas or oil decades ago. The radiators are not the problem; cast iron lasts indefinitely. What wears out is the boiler in the basement. We repair boilers with leaks, low pressure, cold radiators, and kettling, and when the unit is past saving we install NTI high-efficiency boilers that keep the radiant warmth, run at lower water temperatures, and vent through a side wall so the old chimney is no longer a concern.
For Columbia homes that do have ductwork, a furnace that short-cycles or blows lukewarm air in December cannot wait. We repair gas and electric furnaces of every age, from ignition and flame-sensor problems to blower and control failures. When a repair on a fifteen-year-old unit no longer makes sense, our furnace installation team matches a high-efficiency American Standard or Armstrong Air model to your home's size and duct layout.
For the newer homes in West Hempfield Township and the developments off Route 30, a properly sized heat pump handles Susquehanna Valley summers and all but the coldest winter nights on one system. We install ducted heat pumps and repair heat pumps that are icing up, running constantly, or failing to switch modes.
Rusty hot water, rumbling from the tank, or a puddle on the basement floor all mean the water heater is on its way out. We install Bradford White tank water heaters and Navien tankless units, and we handle water heater repairs and the flushing and descaling that Lancaster County's hard water makes necessary.
Columbia Borough is one of the oldest river towns in Lancaster County, and its housing shows it: long blocks of attached brick homes, narrow lots, shared walls, basements with stone foundations, and mechanical rooms that were never designed for modern equipment. Those conditions change how a job is done. A boiler replacement has to fit through an old cellar door and vent without the original chimney. A mini-split line set has to be routed along a rear wall without damaging historic brick. A furnace that shares a chimney with a water heater needs a proper liner or a side-wall vent before the old unit comes out.
Those are routine jobs for our crew. Our technicians measure first, plan the equipment placement and venting with you before installation day, and leave the house looking the way it did when we arrived, minus the cold radiators or the window units.
The river valley holds humidity. July and August in Columbia bring long muggy stretches that run air conditioners for hours at a time, and January regularly drops below twenty degrees, which means a boiler or furnace may run for weeks with little rest. Equipment that works that hard on both ends of the year needs attention on both ends of the year. A spring cooling visit and a fall heating visit through our maintenance plan keep it efficient and catch the weak capacitor or dirty flame sensor before it becomes a breakdown.
An oversized air conditioner cools a row home quickly but shuts off before it pulls the moisture out, which is why a properly sized system, and in some homes a whole-house dehumidifier from our indoor air quality lineup, makes a bigger comfort difference than a lower thermostat setting.
We serve homeowners throughout Columbia Borough and West Hempfield Township, from the riverfront to the Route 30 corridor, plus the nearby communities of:
If you need heating, cooling, or water heater service in Columbia or nearby, we are close and ready to help.
Call today to schedule your HVAC service in Columbia, PA.
Get a QuoteColumbia is a working river town with a downtown full of restored nineteenth-century buildings, and many of the homes we service are being brought back by owners who care about doing it right. We are a few minutes away in Marietta, we shop and eat in the same places, and a good share of our Columbia work comes from neighbors referring neighbors along the same street.
Because we are local, follow-ups are easy. If a boiler repair needs a part ordered or a new mini-split needs a second visit for a thermostat adjustment, we are back the same week, not the same month.
Every spring cooling visit and fall heating visit in Columbia follows the same checklist:
We quote every repair before the work starts and every replacement in writing after a load calculation, so there are no surprises on the invoice. For new systems, financing through Service Finance and Wells Fargo can turn a boiler or air conditioner replacement into a predictable monthly payment instead of a lump sum.
If your air conditioner stops cooling in a heat wave or your boiler or furnace quits on a freezing night, call us first. Urgent no-cooling and no-heat calls in Columbia get priority on the schedule, and our goal is same-day AC repair or heating repair whenever the situation allows.
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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 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.*
When you need heating, cooling, or water heater service in Columbia, PA, call 717 Mechanical LLC. We have repaired, replaced, and maintained comfort equipment in Columbia homes since 2012, from the radiator-heated row homes near the river to the newer houses along Route 30.
Whether you need a new air conditioner, a boiler repair, a furnace replacement, a ductless mini-split for a no-duct row home, or a new water heater, our technicians diagnose first and quote before the work starts. We install American Standard and Armstrong Air heating and cooling equipment, NTI boilers, Bradford White tank water heaters, and Navien tankless units, and we service all major brands.
Call us now to book your HVAC repair, installation, or maintenance service in Columbia, PA.
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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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