Commercial Rooftop HVAC Service for Rhode Island Buildings
This page is for commercial building owners, property managers, facility directors, and hotel and hospital engineering staff — not residential customers. F.G. Lees & Son does not service residential air conditioning. What we do is work on the rooftop units that keep large commercial buildings, high-rises, hotels, shopping centers, and condominiums running — and we've been doing commercial mechanical work in Rhode Island since 1889.
Rooftop HVAC is one of our primary commercial service lines. When your packaged rooftop units go down, you need a contractor who actually does this work — not one who lists it on a website and figures it out on the way up the ladder. Our commercial division handles RTU inspection, scheduled maintenance, component-level repair, emergency response, and full unit replacement when repair isn't the right answer. We serve commercial properties across Rhode Island, with crews based in Providence and available statewide.
What We Service and What That Work Covers
Our rooftop HVAC services are scoped for commercial-scale properties. We work on packaged rooftop units across a wide range of manufacturers and configurations — from single-zone units on smaller commercial buildings to multi-unit systems on high-rises and large hospitality properties. Every engagement starts with a clear assessment of what the unit needs before we recommend a course of action.
RTU Inspection and Scheduled Maintenance
Preventive maintenance on rooftop units extends equipment life, reduces emergency repair frequency, and protects warranty coverage. Our scheduled maintenance visits cover full unit inspection, filter replacement, coil cleaning, refrigerant level check, belt and bearing assessment, economizer function, and controls calibration. We document every visit and provide written records suitable for building files and warranty compliance.
RTU Repair — Component-Level Diagnosis First
When a rooftop unit fails, the cause is rarely obvious from the outside. We perform component-level diagnosis before we recommend anything — evaluating the compressor, heat exchanger coil, economizer, electrical controls, and refrigerant circuit. Many units that appear to need full replacement can be repaired at a fraction of that cost. We give you an honest assessment of what the unit needs and what it will cost either way, so you can make the right call for your building.
Emergency Repair and Full RTU Replacement
When a unit fails during peak season or in a critical building environment, we respond. Our commercial team is available for emergency RTU repair across Rhode Island, and we coordinate with on-site facilities staff to prioritize access and minimize disruption to building operations. When a unit has reached the end of its serviceable life, we manage full packaged rooftop unit replacement — including equipment procurement, crane coordination if required, and commissioning of the new unit.
How We Work With Your Building and Your Team
Rooftop HVAC work on an occupied commercial building requires more than technical competence. It requires coordination. We schedule planned maintenance and non-emergency repair during off-peak periods to minimize impact on tenants and building operations. Before any rooftop work begins, we review access protocols, safety requirements, and any building-specific procedures with your facilities team. Work is documented throughout, and we provide written reporting after each visit — inspection findings, work performed, parts replaced, and any follow-up recommendations — in a format your building records and warranty files can use.
Why Commercial Properties in Rhode Island Call F.G. Lees
The most common thing we hear from new commercial clients is that they couldn't find a local contractor who actually works on rooftop units at commercial scale. Most mechanical contractors in Rhode Island focus on residential HVAC or light commercial work. Our commercial division is built differently — rooftop HVAC and large-scale mechanical systems are a core part of what we do, not an occasional job category.
- Established 1889 — over 130 years of commercial mechanical work in Rhode Island
- Commercial division serving high-rises, hotels, hospitals, and large condominiums
- Component-level RTU diagnosis before any replacement recommendation
- Scheduled maintenance with full written documentation for building records
- Emergency response available for commercial properties statewide
- Better Business Bureau member — 4.5 stars across 73 Google reviews
Common Questions About Commercial Rooftop HVAC Service
What types of buildings do you service rooftop HVAC units for?
We work on rooftop units for high-rise office and residential buildings, hotels, hospitals, shopping centers, large condominiums, and similar commercial properties across Rhode Island. We do not service residential air conditioning systems — this is a commercial-only service line.Can a rooftop unit be repaired, or does it need to be replaced?
In many cases, yes — a rooftop unit can be repaired at significantly lower cost than replacement. We perform component-level diagnosis on every unit before we recommend a course of action. If the compressor, coil, economizer, or controls are the issue, we assess whether repair is viable and give you a clear cost comparison so you can make an informed decision.How do you schedule rooftop HVAC work without disrupting building operations?
We coordinate directly with your facilities staff before scheduling any rooftop work. Planned maintenance and non-emergency repairs are scheduled during off-peak periods based on your building's operational needs. Emergency response is handled as quickly as access and safety protocols allow, and we keep your team informed throughout.Do you provide documentation after rooftop HVAC service visits?
Yes. After every maintenance or repair visit, we provide written documentation covering what was inspected, what work was performed, parts replaced, and any follow-up items identified. This reporting is formatted to support building records, property management files, and equipment warranty compliance.Do you service rooftop HVAC units outside of Providence?
We service commercial properties across Rhode Island. While our crews are based in Providence, we regularly work on rooftop units at commercial properties throughout the state — including Warwick, Lincoln, East Providence, North Providence, and statewide locations for larger commercial accounts.
Get a Commercial Rooftop HVAC Assessment
If your building's rooftop units need inspection, scheduled maintenance, repair, or replacement, we're the contractor to call. Request a quote through our contact form or reach us directly by phone — our line is staffed around the clock, with live staff during business hours and on-call coverage after hours.