Commercial Service
Commercial Services
HVAC, plumbing, water treatment, and complete mechanical systems for businesses, new construction, and design-build projects across Central PA.
Commercial Services
- HVAC Repair & Maintenance
- HVAC Installation & Replacement
- New Construction
- Design-Build
- Plumbing
- Water Treatment & Filtration
Service Capabilities
HVAC Repair & Maintenance
Boilers, furnaces, rooftop units, and unit heaters, repaired or replaced across Lebanon, Elizabethtown, Manheim, York, and the greater Lancaster area. Emergency heating service available through the season.
Repair, maintenance, and installation of commercial air conditioning, from single rooftop units to multi-zone systems. Scheduled spring service keeps cooling load and energy costs predictable through the summer.
HVAC Installation & Replacement
Commercial HVAC installation and replacement, from single rooftop units to VRF, geothermal, and chilled water systems. Every job starts with a load calculation, so the equipment is sized to the building rather than to the last one we installed.
New Construction
Full HVAC and plumbing installation for new commercial construction, tenant improvements, and building additions. We read the drawings, coordinate the trades, and deliver systems that pass inspection the first time.
Design-Build
Process piping, dust collection, and industrial HVAC for manufacturing and production facilities, including total mechanical design and build for projects that need engineering rather than off-the-shelf equipment.
Plumbing
Fixture and supply line repair, water heaters, and pipe repair for commercial buildings, plus drain cleaning for kitchens, restrooms, and floor drains. Service scheduled around your hours, with emergency coverage.
Water Treatment & Filtration
Commercial water treatment, filtration, and softening. We test your incoming water, identify what it is doing to your equipment, and specify a system sized for the building’s actual usage, with service to keep it running.
We build HVAC systems for lasting comfort, efficiency, and reliability.
Commercial HVAC
Repair & Maintenance
When a rooftop unit goes down, the building doesn’t wait. We service and maintain commercial heating and cooling across Lancaster, Lebanon, York, and Harrisburg, with emergency coverage when it can’t wait for morning.
A Commitment to Doing It Right
We don’t sell quick fixes. Every installation and every service call gets the same scrutiny: what failed, why it failed, and what it will take to keep it from failing again. You get a written scope, a real response window, and a technician who can explain the work in plain language.
Commercial Services FAQ
Yes. We install complete HVAC and plumbing systems for ground-up commercial buildings, tenant fit-outs, and additions throughout Lancaster, Lebanon, and Berks counties. We work from your drawings and coordinate with your general contractor from rough-in through final inspection.
Lancaster, Lebanon, Dauphin, Chester, and Berks counties, including York and the Harrisburg area. For larger commercial and industrial projects we regularly travel beyond that radius, so call with the location and we will give you a straight answer.
Yes. Our office hours are Monday through Friday, 7am to 4pm, and we take emergency calls for heating, cooling, and plumbing failures that cannot wait until morning.
Yes. Comprehensive maintenance agreements cover scheduled inspection and service on your HVAC and plumbing equipment, with documentation for your records and priority scheduling when something goes wrong. We walk the building and quote based on what is actually installed.
Roof top units, boilers, ductless systems, geothermal, make up air units, water heaters, and more.
GSM Mechanical provides plumbing service for residential and commercial properties, including water heater installation, clogged-drain service, and emergency plumbing assistance. Contact us to discuss your plumbing needs and service availability.
Yes. We offer water treatment and filtration solutions for municipal and well water, including water softeners, reverse-osmosis systems, iron and sediment filters, and UV-light installation and maintenance. Contact us to discuss the right option for your property.
We provide drain cleaning and clogged-drain service in Lebanon, Elizabethtown, Manheim, and surrounding areas. Contact us with your location and a description of the blockage to confirm service availability.
Yes. We provide heating, cooling, and plumbing services for both homes and businesses. Our commercial work also includes new construction HVAC. Contact us to discuss your project and service needs.