
Preventive HVAC
Commercial HVAC & AC Maintenance in Miami
Zaldak Maintenance performs scheduled preventive maintenance on commercial air conditioning and HVAC systems across Miami-Dade and South Broward: inspections, AC tune-ups, coil and condensate cleaning, filter and belt programs, and a written service history for every unit, carried out by our own licensed HVAC technicians.
Why preventive AC maintenance pays off in South Florida
Miami has no off-season for cooling. Commercial systems run most hours of most days, in heat and humidity that load coils with dirt, grow algae in condensate lines and wear out capacitors and contactors faster than in cooler climates. Most of the breakdowns we see on emergency calls were visible weeks earlier to anyone who opened the panel.
Preventive maintenance turns those failures into scheduled line items. A technician who sees the same units every quarter notices a capacitor drifting out of spec, a fan motor running hot or a refrigerant charge slowly dropping, and fixes it on a weekday morning instead of a Saturday night in August. It also keeps efficiency up: a clean coil and correct airflow move the same heat with less electricity.
What a maintenance visit includes
- Visual and operational inspection of rooftop units, splits, mini-splits and air handlers
- Condenser and evaporator coil cleaning on a schedule set by the site
- Condensate drain line and pan flushing, with algae treatment where needed
- Filter replacement and belt inspection or replacement
- Electrical checks: capacitors, contactors, connections and amp draw
- Refrigerant pressure and temperature readings logged against previous visits
- Thermostat and controls check, including schedules that waste energy
- Written findings with photos and a quote for anything that needs repair
How often, and how we set the schedule
For most commercial buildings in Miami we recommend a quarterly inspection, with full coil cleaning at least twice a year. Restaurants, gyms and anything with heavy grease, dust or occupancy usually need monthly filter and condensate attention. Server rooms and medical spaces get a schedule built around the cost of downtime rather than a calendar.
On the first visit we build an asset list for the building (make, model, tonnage, age and condition of each unit) and agree a frequency per system. From then on every visit is logged against that list, so you can see which units are ageing, which keep failing, and where replacement should go into next year's budget.
Who we maintain for
Condo associations rely on us for hallway, lobby and amenity cooling. Property managers use one schedule across a whole portfolio. Office buildings want visits outside tenant hours, retail wants them before opening, and restaurants need kitchen heat loads and make-up air handled without interrupting service. We work across all of these in Miami-Dade and South Broward, including Fort Lauderdale, Hollywood and Miami Beach.
When something fails between visits
Maintenance reduces breakdowns; it doesn't end them. Buildings on a maintenance plan get priority on our 24/7 dispatch line, with a typical response of about two hours. Because the technician already has the unit's history, diagnosis is faster, and the repair is quoted before any work begins.
Included
What you get
- Licensed in-house HVAC technicians
- Asset list for every unit in the building
- Quarterly or custom visit schedule
- Photo report after every visit
- Repairs quoted before work starts
- Priority 24/7 dispatch for plan members
FAQ
Questions we get asked
How often should commercial AC be serviced in Florida?
Most commercial AC systems in Florida should be inspected quarterly, with coil cleaning at least twice a year. Year-round cooling and high humidity wear systems faster than in cooler states, and high-load spaces like restaurants and gyms often need monthly filter and condensate service.
What is included in an AC tune-up?
A commercial AC tune-up covers coil cleaning, condensate drain flushing, filter and belt service, electrical checks on capacitors and contactors, refrigerant readings and a controls check. We log the readings against earlier visits so slow problems like a refrigerant leak show up as a trend.
Is preventive HVAC maintenance worth the cost?
For commercial buildings it usually is, because one avoided emergency call or early compressor failure often covers a year of scheduled visits. Clean coils and correct airflow also lower energy use, and a documented history helps with warranty claims and replacement budgeting.
How much does commercial HVAC maintenance cost in Miami?
The cost depends on the number, type and size of units, how hard they work and how often you want visits. We assess the building, build the asset list and quote a fixed recurring amount, so there's no per-hour guessing.
Can maintenance be scheduled outside business hours?
Yes. Office and medical work is usually done early, late or on weekends, and retail and restaurant visits are scheduled before opening or after close so occupants aren't disrupted.
Do you maintain equipment installed by another contractor?
Yes. We maintain most commercial makes and system types regardless of who installed them, and the first visit documents the current condition of each unit.

Get started
Let's get it
handled.
Tell us what your property needs. You'll get a clear, honest quote — and one team that owns the result from start to finish.