AC Installation
Commercial AC Installation & Replacement in Miami
Zaldak Maintenance installs and replaces commercial air conditioning across Miami-Dade and South Broward, including rooftop and package units, split systems and ductless mini-splits, with licensed HVAC technicians, permits pulled as required, and a written quote before any work begins.
Replacement is a project, not a repair
When an AC system reaches the end of its life, the decision is no longer which part to swap. It's which equipment to buy, what size, how to get it onto the roof or into the mechanical room, and how to do it without shutting a business down for a week. A poorly sized or rushed installation can cost more to run than the old unit it replaced.
We start with the building: heat load, occupancy, existing ductwork and electrical capacity, and how the space is used. In Miami, humidity control matters as much as cooling capacity. An oversized unit cools quickly but leaves the air damp, which means mould risk and uncomfortable tenants.
What we install
- Rooftop and package unit replacement, including curb adapters where needed
- Split systems and air handlers for offices, retail and restaurants
- Ductless mini-splits for server rooms, additions and hard-to-cool spaces
- Condo common-area and amenity cooling
- Thermostats and controls, including programmable and remote-access options
- Ductwork modifications, sealing and airflow balancing
- Condensate drains, safety switches and electrical connections
- Removal and disposal of old equipment
Who it's for
Most of our installation work comes from buildings we already maintain: the inspection history shows when a unit is no longer worth repairing, so replacement is planned rather than forced by a July breakdown. We also replace systems for office buildings, retail and restaurant tenants, medical offices and condo associations that need a single contractor to handle the job from quote to start-up.
How an installation runs
- Site survey: load, existing equipment, access, roof and electrical
- Written quote with equipment options before any commitment
- Permits pulled as the local building department requires
- Scheduled cut-over, usually off-hours, with temporary cooling discussed where needed
- Start-up, refrigerant charge and airflow checks, controls set up
- Close-out with photos, equipment details and warranty paperwork from the manufacturer
If the system has already failed
Sometimes replacement isn't planned: a compressor fails in August and the unit is too old to justify the repair. Our 24/7 dispatch sends a technician to diagnose (typical response is about two hours), stabilise what can be stabilised, and give you an honest repair-or-replace answer so you can decide quickly.
After installation, new equipment should go straight onto a preventive maintenance schedule. That is what keeps manufacturer warranties easy to honour and the system efficient.
Included
What you get
- Licensed HVAC technicians
- Load-based sizing, not guesswork
- Permits pulled as required
- Written quote with equipment options
- Off-hours cut-over scheduling
- Close-out photos and equipment records
FAQ
Questions we get asked
How do I know if my commercial AC should be replaced instead of repaired?
Replacement usually makes sense when the unit is past roughly 12 to 15 years old in Miami's climate, needs a major component like a compressor, or keeps breaking down. A common rule of thumb multiplies the unit's age by the repair cost; if the result is above about $5,000, replacement is usually the better investment.
Do you need a permit to replace an AC unit in Miami?
Yes, replacing an air conditioning system generally requires a mechanical permit from the local building department in Miami-Dade and Broward. We pull permits as required and schedule the inspections.
How long does a commercial AC installation take?
A straightforward split-system or single rooftop unit replacement often takes one to two days on site once equipment and permits are in hand. Larger or multi-unit projects, crane lifts and ductwork changes take longer, and we schedule the cut-over to keep downtime short.
Are mini-splits a good option for commercial spaces?
Ductless mini-splits are a good option for server rooms, additions, small offices and spaces the main system can't reach. They're efficient and quick to install, but they are not a replacement for a properly sized central or rooftop system in a larger space.
How much does commercial AC installation cost?
It depends on tonnage, equipment type and efficiency, access (crane lifts, roof work), electrical and ductwork changes, and permits. We survey the site and give a written quote with options before you commit.
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.