Rooftop Unit Replacement
Full RTU changeouts including curb adaptation, crane coordination, electrical and controls. Planned around your operating hours.
RTU replacementInstallation · Service · Design
Commercial HVAC for buildings that can't afford downtime
Rooftop units, split systems and ventilation across South Jersey and the Delaware Valley. Led by 40+ years of hands-on commercial experience — we diagnose it right the first time.
What we do
Commercial HVAC services
We work on commercial and industrial equipment exclusively — rooftop units, CRAC systems, split systems, make-up air and exhaust. Not a residential company with a commercial page.
Design & Design-Build
System design for new and renovated commercial space, sized and specified for how the building actually gets used.
Design-build
New Construction & Fit-Out
Mechanical scope for ground-up builds, renovations and tenant fit-outs, executed to plans and to schedule.
New construction
Ventilation Systems
Make-up air, exhaust and ventilation for warehouses, kitchens and manufacturing space — where air balance actually matters.
Ventilation
Preventive Maintenance
Scheduled maintenance agreements that keep equipment running and turn emergencies into planned work.
Maintenance plans
Commercial HVAC Repair
Diagnostic and repair for rooftop units and split systems. We find the actual fault rather than replacing parts until it works.
Repair & serviceWho we work with
Buildings we know
A warehouse has different problems than a medical office. We size, service and schedule around how each building type actually operates.
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Warehouse & DistributionHigh ceilings, large volumes, and heat that collects at the roof.
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Modular BuildingsRooftop and wall-mount units on buildings that arrive in sections.
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Office & ProfessionalZoning and comfort complaints, with work fitted around tenants.
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Light Industrial & ManufacturingProcess heat and exhaust that comfort cooling was never sized for.
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Medical & DentalTighter temperature and humidity limits than an ordinary office.
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Schools & InstitutionalSummer shutdown windows, and budget cycles that set the timing.
Our work
Real jobs, real equipment
Every photograph here is our own work, on buildings we actually serviced.
Office center, Burlington County NJ
13 rooftop units totalling 310 tons, replaced in a single day. July 2026.
View project
Modular gym and offices, Central NJ
Ducted supply for the gym, ductless splits for the administrative offices. Test run in heat and A/C.
View project
Medical office, Vineland NJ
Old attic equipment out, new furnace, A-coil and condenser in, plus a condensate safety switch.
View project
Retail center, Mount Laurel NJ
Three 7.5-ton rooftop units replaced — 22.5 tons total, with crane coordination around an occupied lot.
View project
Why Rooftop HVAC
Four decades on the roof, not behind a desk
Rooftop HVAC is led by William "Bill" Palombi, who has spent 40+ years in commercial HVAC.
Most service calls are lost on diagnosis, not on parts. Experience is what separates a unit that gets fixed from a unit that gets three visits.
- Commercial only. We are not splitting attention between your building and somebody's furnace.
- You reach a person. Not a call center routing tickets.
- Straight answers on repair vs. replace. Including when the honest answer costs us the bigger job.
- Documented work. You get to see what we found and what we did.
Where we work
South Jersey & the Delaware Valley
We cover commercial buildings across the Philadelphia metro — fourteen counties in four states — plus the New Jersey shore.
- Pennsylvania — Philadelphia, Delaware, Montgomery, Bucks and Chester counties
- New Jersey — Burlington, Camden, Gloucester, Mercer, Salem, Ocean and Atlantic counties
- Delaware — New Castle County
- Maryland — Cecil County
Equipment down, or planning ahead?
Either way, start here. Emergencies get a phone call — everything else can start with the form.