HVAC Installation Contractor in Miami, FL
One Nation Renovation installs and replaces HVAC systems across the City of Miami — Coconut Grove, Coral Way, Shenandoah, and Flagami. Many Miami homes are CBS (concrete block and stucco) construction with limited attic space for ductwork and high cooling loads from the thermal mass of concrete walls, which affects both system sizing and how ductwork can be run. We assess those conditions during the estimate and size the system to the actual load. We install Rheem systems rated 15 SEER or higher and file and manage every permit with the City of Miami Building Department from application through final inspection.
Why Miami Homeowners Choose One Nation Renovation
Concrete-block construction experience. Many Miami homes are CBS construction with limited attic space for ductwork and high cooling loads from concrete thermal mass — we size the system to the actual load and plan ductwork runs that fit the home.
City of Miami permits managed from application through the mandatory final inspection.
Transparent pricing with no mid-project upsells — any ductwork or electrical work the install requires is priced upfront.
One team, whole home — electrical panel upgrades and thermostat wiring handled in the same mobilization.
HVAC Options for Miami Homes
We install Rheem air conditioning systems rated 15 SEER or higher for Florida's cooling loads, plus mini-splits for additions or rooms without ductwork. AC replacement starts from $5,000; complete systems typically run $7,000-$12,000, and mini-splits run $3,000-$6,000 depending on system size and configuration.
Most Miami HVAC installations are completed in 1-2 days. Homes with attic-space constraints or concrete-block ductwork challenges can run toward the longer end of that range if duct modifications are needed.
See our South Florida HVAC replacement cost guide for the full pricing breakdown.
Frequently Asked Questions
Can you install central AC in a Miami concrete-block home with limited attic space?
Yes, though CBS (concrete block and stucco) construction with limited attic space affects how ductwork can be run and how the system is sized against the concrete's thermal mass. We assess those conditions during the estimate and plan ductwork runs that fit the home.
Do I need a permit to replace my AC in Miami?
Yes, HVAC replacements require a building permit. One Nation Renovation files and manages the City of Miami Building Department permit for you from start to finish.
What SEER rating should I look for in Miami?
For Florida homes, we recommend a minimum 15 SEER rating for optimal efficiency. Given Miami's extreme cooling loads, a higher-SEER Rheem system can meaningfully lower your monthly bills.
How much does HVAC replacement cost in Miami?
AC replacement starts from $5,000. Complete systems typically run $7,000-$12,000, and mini-splits run $3,000-$6,000 depending on system size (tons), SEER rating, and ductwork condition.
Also serving: HVAC in Fort Lauderdale · HVAC in Hollywood
Get Your Free HVAC Estimate in Miami
Schedule a free in-home consultation with our specialists — call (754) 247-1207 or request your estimate below.