We got the call on a Tuesday afternoon — a restaurant on Division Street, kitchen crew mid-prep for dinner service, and the rooftop unit had stopped cooling the dining room. No dramatic failure, just a contactor that decided it was done. We had a tech there within two hours, part on the truck, dining room back to temperature before the first reservation. That kind of call is the norm for us, not the exception, and it's why commercial HVAC in Portland has become a steady part of what we do at Efficiency Heating & Cooling.
Light commercial buildings — retail storefronts, offices, restaurants, small warehouses up to around 10,000 square feet — sit in an awkward middle tier. They're too demanding for residential contractors, but most commercial-specialist firms won't bother with anything under 25 tons. We've built our operation around exactly that middle band.
Every technician we put on a commercial job holds NATE certification. That's not a marketing detail — it's a verifiable credential that means the person diagnosing your rooftop unit has been tested on commercial equipment, not just residential split systems. We're fully licensed, bonded, and insured in Oregon, and we'll hand you proof of insurance before any job starts if you need it for your property manager or landlord.
Rooftop package units are the most common thing we see in Portland commercial properties. We also handle split systems, heat pumps, mini-splits, dedicated outdoor air systems, and hybrid configurations that mix gas heat with heat pump cooling. Restaurants get extra attention — makeup air for hoods, kitchen exhaust coordination, and temperature zoning between front-of-house and kitchen are all in scope.
When something fails, we diagnose the root cause. We're not going to swap a compressor if the real problem is refrigerant charge or a bad metering device. That kind of shortcut costs you more six months later, and we're still going to be the ones answering the phone.
Portland winters are damp more than they're deep-cold, but that moisture load is hard on commercial equipment that's running long cycles at moderate temperatures. A failing heat pump or a cracked heat exchanger in a furnace becomes a customer experience problem fast — uncomfortable retail spaces drive foot traffic out the door.
Our commercial heating service covers everything from preventive maintenance contracts through emergency same-day repair and full equipment replacement. For gas-fired systems specifically, we carry a broad parts inventory for the makes most common in light commercial construction around the Portland metro, which matters a lot when a kitchen needs heat restored before the lunch rush.
Commercial gas furnaces in light commercial buildings tend to be worked harder and maintained less than residential units — the occupancy load is higher and scheduled maintenance usually falls through the cracks. Ignition failures, control board faults, and cracked heat exchangers are the common failure modes we see. Most can be resolved in a single visit when the tech carries the right parts. If you're dealing with an active fault, our furnace repair in Portland page covers what to expect from the service call.
The extended heat events Portland has seen over the past few years have exposed commercial systems that were sized for a climate that no longer quite exists. We run actual load calculations — not rules-of-thumb based on square footage alone — and we'll give you an honest answer about whether a refrigerant recharge is the real fix or whether your tonnage is undersized for current peak temperatures.
For multi-zone commercial buildings, we design and install zoned systems that let different areas run independently. Front offices, server rooms, and warehouse bays don't need the same setpoints, and proper zoning cuts energy waste during off-peak hours. When a unit needs fast attention, we handle AC repair in Portland with the same same-day commitment we apply to heating calls — the rate doesn't change on weekends or after 5 p.m.
Leaky ductwork in commercial buildings is one of the quietest budget drains there is. A system that tested fine at installation can lose 25–30% of its conditioned air to unconditioned space within a few years if duct sealing was done poorly. We pressure-test, inspect, and seal duct systems, and we'll redesign runs where the original layout is fundamentally wrong for the load.
For buildings where duct maintenance has been deferred for years, air duct cleaning in Portland can meaningfully reduce particulate load in occupied spaces — particularly relevant for medical offices, salons, and restaurants where air quality directly affects clients.
We offer commercial maintenance contracts structured either seasonally (spring cooling prep, fall heating prep) or quarterly for higher-use facilities. Each visit includes filter changes, coil cleaning, belt and bearing inspection, refrigerant level check, and a written report. Clients on maintenance agreements go to the front of the queue during peak demand — when it's 95°F in July and everyone's cooling is struggling, a maintenance client doesn't wait in a general queue.
The written service history we provide matters beyond the mechanical benefit. It supports equipment warranty claims, satisfies property manager documentation requirements, and gives you a clean record when a building sells or a lease changes hands.
We run commercial calls throughout Portland, Beaverton, Hillsboro, Tigard, Tualatin, Lake Oswego, Gresham, Oregon City, Clackamas, Milwaukie, and Happy Valley. Three locations — Portland HQ, Milwaukie, and Happy Valley — mean we're not routing everything through a single dispatch point. The Milwaukie shop covers the inner east side and Clackamas County clusters faster than any single-location competitor can.
For the full range of what we do across residential and commercial, the complete list of HVAC services in Portland is the right starting point.
Commercial pricing requires a site visit — there's no honest way to quote a rooftop replacement or a duct redesign over the phone. We keep site assessments low-friction: a tech walks the space, takes measurements, and returns a written, itemized estimate. Assessments are available same-day for urgent situations. The no-overtime-charge policy applies to after-hours assessments the same as it does to after-hours repairs.
If you want to talk through scope before scheduling, call us directly. We're a 17-year-old Portland shop, not a call center — you'll reach someone who can actually answer a technical question about your building. To submit a service request or learn more about our full scope, visit our commercial HVAC page.