HVAC Installation Services
System struggling in August? On Point Construction sizes, installs, and replaces air conditioning across Miami-Dade, with load calculations done properly and permits handled.
Why Choose On Point Construction for Your HVAC Work
In Miami your air conditioner runs nearly year-round, which makes correct sizing more consequential here than almost anywhere else. An oversized unit short-cycles, never runs long enough to pull humidity out, and leaves you with a cold, clammy house. We calculate the actual load for your home rather than matching whatever tonnage was there before.
Core Components of Your Cooling System
The equipment is only one part of what determines whether your house is comfortable. All three of these matter.
Load Calculation & Sizing
Square footage, insulation, window area and orientation, and ceiling height fed into an actual calculation, rather than replacing like-for-like and hoping.
Ductwork Design & Repair
Correctly sized and sealed ducts with balanced returns, because the best equipment on a poor duct system still leaves you with hot rooms.
Airflow & Humidity Control
Verified airflow and run times long enough to actually dehumidify, which in this climate matters as much to comfort as temperature does.
Our HVAC team in Miami is the right choice for your installation.
Energy‑Efficient Cooling Options
Cooling dominates a Miami utility bill. Efficiency choices made at installation follow you every month for the next fifteen years.
Our Comprehensive HVAC Services.
On Point Construction handles system replacement, new installation, ductwork design and repair, and mini-split systems for additions and converted spaces.
Our Commitment to a System That Performs
You get the load calculation, not just a tonnage recommendation. Installations are documented, refrigerant charge verified, and airflow measured rather than assumed. We come back after startup to confirm the system is performing the way it was designed to.
Safety Standards & Compliance You Can Count On
HVAC replacement is permitted work in Miami-Dade, and the mechanical inspection exists because incorrect installation causes real problems, from electrical faults to condensate damage.
Permit Acquisition Support
Scheduled Inspections & Documentation
Industry Best Practices for On‑Site Safety
Compliance Tracking at Every Stage
HVAC Service Areas We Serve
Request an HVAC Estimate
our location
95 Merrick wy, Suite 325 Coral Gables, FL, 33134, USA
quick contact
Call Us: +1 (786) 209 7900
Mail Us :main@onpointgb.com
We will answer you within 24 hours via email, or you can call us directly, we are always ready to serve. Thank
HVAC FAQ's
A straight equipment swap is usually a single day. If ductwork needs replacement, the electrical needs upgrading, or the air handler is being relocated, expect 2 to 4 days. We schedule to minimize the time you are without cooling and can provide portable units on longer summer jobs.
Yes. We pull the mechanical permit with the correct building department and handle the inspection through final. Replacement without a permit is common and it becomes a problem at resale.
Through a load calculation based on your home’s square footage, insulation, window area and orientation, and ceiling height. Matching the old unit’s tonnage is the common shortcut and it is often wrong, particularly if windows, insulation, or the floor plan have changed since the original install.
In Miami, more often than elsewhere, because your system runs so many hours a year that the efficiency difference compounds quickly. Whether it pays back for you depends on your usage and how long you plan to stay in the home. We will show you the math rather than just recommending the top model.
Almost always an oversized system. It cools the air to setpoint fast, shuts off before it has run long enough to pull moisture out, and leaves you at a low temperature and high humidity. It is one of the most common problems we find, and it originates at sizing rather than at the equipment.
Yes. Miami-Dade requires condensing units to be anchored to resist High-Velocity Hurricane Zone wind loads, and it is checked at inspection. Older installations frequently do not comply, and we correct it as part of any replacement.
All of Miami-Dade County, including Coral Gables, Coconut Grove, Pinecrest, Palmetto Bay, South Miami, Key Biscayne, Miami Beach, Miami Shores, Brickell, Wynwood, Doral, Aventura, and Sunny Isles Beach.
Yes. In this climate, systems run enough hours that coil cleaning, drain line clearing, and charge checks are genuinely preventive rather than upselling. A clogged condensate line is one of the most common causes of interior water damage we see.