Installation & Replacement
Commercial HVAC Installation in Dallas
Replacing a rooftop unit on an occupied building is a logistics problem before it is a mechanical one. We size the load correctly for the space, arrange crane and rigging for the lift, and match the new equipment's footprint to the existing curb so the roof membrane stays intact. Permits and startup documentation are handled before the crew ever leaves.
- Same-day and next-day service calls
- Chiller plants up to 500 tons
- All major brands
What's covered
Load calculation and equipment selection
Sizing new equipment to the building's actual heating and cooling load rather than matching the old unit's tonnage by default.
Crane and rigging coordination
Scheduling the lift, blocking off the drop zone, and setting the new unit on the curb with minimal disruption to tenants below.
Curb adapter fabrication
Building transition curbs when a new unit's dimensions or duct openings do not match the roof opening it is replacing.
Permitting and inspection
Pulling the mechanical permit and coordinating the inspection required before the building can legally operate the new equipment.
Startup and commissioning
Verifying airflow, refrigerant charge, and control staging once the unit is set, before handing operation back to facility staff.
Replacement of failing equipment
Swapping out units nearing the end of their service life before a mid-summer breakdown forces an emergency replacement.
Common symptoms
Facilities usually call about one or more of the following before a tech is ever dispatched.
- Existing unit is over fifteen years old and repair parts are getting harder to source
- Energy bills climbing faster than square footage or occupancy would explain
- Tenants reporting uneven temperatures floor to floor
- Unit requires a service call every few weeks during peak season
- Roof curb showing rust or structural wear around the mounting frame
- Equipment tagged for replacement in a prior facility assessment
How the visit works
- 1 Site survey and load calculation
We walk the roof and the space below to confirm tonnage, electrical service, and curb dimensions before quoting equipment.
- 2 Equipment order and scheduling
Once equipment is confirmed, we coordinate crane access, parking, and any street closure permits the lift requires.
- 3 Removal and set
The old unit comes off the curb, any adapter work happens, and the new unit is set and secured the same day whenever the schedule allows.
- 4 Startup, permit, and inspection
We commission the equipment, close out the mechanical permit, and schedule the required inspection before the job is considered complete.
Equipment we service
Our techs carry diagnostic tools for equipment across manufacturers rather than specializing in one brand. Equipment we service includes:
Related services
Commercial HVAC repair
Facility managers call us when a unit stops cooling, stops heating, or trips a breaker and nobody on staff can tell why.
Rooftop EquipmentRooftop units
Package rooftop units carry most of the conditioning load for retail strips, office parks, and warehouses across DFW, and they take weather that indoor equipment never sees.
Controls & AutomationBuilding automation
A rooftop unit that is mechanically sound can still leave a building uncomfortable if the automation layer above it is telling it to do the wrong thing at the wrong time.
Available across Dallas and Fort Worth
This service runs on the same routes as the rest of our work, across the following areas.
Common questions
How do you decide what size unit a building needs?
We run a load calculation based on square footage, occupancy, glazing, and insulation rather than simply matching the tonnage of the unit being replaced.
Does the new equipment have to match the old curb?
Not necessarily. When dimensions differ we fabricate a transition curb so the new unit seats properly without reworking the roof opening.
Who handles the permit for a rooftop replacement?
We pull the mechanical permit and coordinate the required inspection as part of the installation, not as a separate step you have to manage.
Can installation happen without shutting the building down?
In most cases yes. Crane lifts and curb work are scheduled to minimize disruption, and temporary conditioning can be arranged for sensitive spaces.
Tell us about the equipment and the symptom, and we will get a technician scheduled.