For a Pittsburgh business, an HVAC failure is a business problem — an uncomfortable dining room empties out, a warm office kills productivity, and a retail floor loses customers. Werth-Aire services and installs light-commercial HVAC for offices, retail, restaurants, and small facilities across Monroeville, Robinson Township, Moon, and the wider metro, with a focus on minimizing downtime.
We work on the equipment that runs commercial spaces: packaged rooftop units (RTUs), split systems, and the controls that tie them together. Our commercial service covers emergency repair, planned replacement, and — most valuably — preventive maintenance agreements that keep units running through summer and winter peaks instead of failing at the worst possible time. On installs and replacements, we size equipment to the load and the space, not to whatever was there before.
We understand that commercial work runs on scheduling, documentation, and reliability. We coordinate around your hours where we can, keep you informed, and document the work so property managers and owners have a clear record.
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Commercial HVAC needs we handle
- A rooftop unit down and a space getting uncomfortable
- Uneven heating or cooling across a commercial floor plan
- Rising energy costs from aging or failing equipment
- Repeated breakdowns disrupting operations
- A planned replacement or build-out that needs proper sizing
- A need for scheduled maintenance to prevent downtime
What our commercial hvac covers
Rooftop units (RTUs)
Repair, replacement, and maintenance of packaged rooftop units that serve most commercial spaces.
Split & multi-zone systems
Service and installation of commercial split systems and zoned equipment.
Preventive maintenance
Scheduled maintenance agreements that keep units running through summer and winter peaks.
Downtime-focused service
Fast repair and scheduling around your hours to keep the business open and comfortable.

Our process
Assess the system
We evaluate the RTUs, splits, and controls, and the demands of the space, to diagnose or plan properly.
Repair or plan replacement
We restore operation fast, or scope a right-sized replacement matched to the load and your business.
Minimize downtime
We coordinate around your hours where possible and keep you informed throughout.
Document & maintain
We document the work and offer preventive maintenance agreements to keep equipment reliable.
Why commercial HVAC is a business problem
For a Pittsburgh business, an HVAC failure is a business problem — an uncomfortable dining room empties out, a warm office kills productivity, and a retail floor loses customers who remember and choose elsewhere. We service the equipment that runs commercial spaces: packaged rooftop units, split systems, and the controls that tie them together. Our work covers emergency repair, planned replacement sized to the actual load, and — most valuably — preventive maintenance agreements that keep units running through summer and winter peaks instead of failing at the worst time. We coordinate around your hours where we can and document everything for owners and property managers.
What affects the cost
Commercial work is quoted to the equipment and scope. Cost drivers include:
- The type and number of units — RTUs, splits, or multi-zone systems
- Repair versus replacement and equipment sizing
- Access, rigging, and roof or curb work for rooftop units
- Maintenance-agreement coverage and scheduling
We scope commercial work to your building and operations, with documented service and maintenance agreements available to keep your equipment reliable through peak seasons.
| System | Where it's used | Service focus |
|---|---|---|
| Rooftop units (RTUs) | Most retail, offices, restaurants | Refrigerant, economizer, curb |
| Split systems | Smaller or zoned spaces | Compressor, coil, controls |
| Controls & thermostats | All commercial spaces | Zone accuracy, scheduling |
Why choose Werth-Aire for commercial hvac
When your rooftop unit goes down, your business feels it — an empty dining room, a warm office, a retail floor losing customers. We keep Pittsburgh commercial spaces running with fast repair, right-sized replacements, and maintenance agreements that head off the failure before your busy season, and we document every visit for owners and property managers.
Serving Pittsburgh since 2015
11+ years keeping North Hills and Allegheny County homes comfortable through hard winters and humid summers.
4.9★ across 51 reviews
Local homeowners rate us for straight answers, clean work, and pricing with no surprises.
Licensed, insured & EPA-certified
EPA Section 608 technicians installing to ACCA Manual J/S/D standards, with the proper Pittsburgh permits pulled on every install.
Flat-rate pricing, 24/7 response
A written quote before we start, the diagnostic fee explained up front, and around-the-clock help when it can’t wait.
Commercial HVAC across Pittsburgh & the North Hills
From our base on the Perry Highway corridor, we bring commercial hvac to homes across Allegheny County and Western Pennsylvania. That includes Ross Township, McCandless, West View, Bellevue, Avalon, and Shaler Township, plus the South Hills, the river boroughs, and the wider metro. See every community on our HVAC service areas page, or call (831) 461-3437 to confirm we cover your street.
Related services
Related reading
- Commercial HVAC Maintenance for Pittsburgh Businesses — For a business, HVAC downtime costs customers and productivity. Here is why a maintenance agreement is one of the best operational investments you can make.
- Rooftop Unit (RTU) Repair: What PA Businesses Should Know — Rooftop units run most Pittsburgh commercial spaces. Here is what business owners should know about common failures, repair, and replacement.

