One Contractor for the Full Mechanical Scope of Your Building

When a mechanical failure affects dozens of tenants, patients, or guests, you need a contractor who has worked at that scale before — not one learning on your building.

Specialty Commercial Services That Most RI Contractors Cannot Cover

F.G. Lees & Son operates a dedicated commercial division serving high-rise residential buildings, condominiums, hotels, and hospital facilities across Rhode Island. Our two highest-demand commercial lines — rooftop HVAC and booster pump stations — represent the clearest capability gap in the local market. Few contractors in the state have the equipment, certifications, or project experience to execute these systems at building scale.

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Rooftop HVAC Units

Commercial rooftop HVAC service requires different equipment, different access protocols, and a different level of coordination than residential work. We service and maintain rooftop mechanical units on commercial and high-rise buildings throughout Rhode Island — the kind of systems found on hotels, mid-rise condominiums, and institutional facilities where downtime is not an option.

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Booster Pump Stations

High-rise buildings, hospitals, hotels, and large condominium associations depend on booster pump stations to maintain water pressure across every floor and every unit. We design, install, service, and repair booster pump systems for buildings across Rhode Island — including facilities where a pressure failure cascades immediately into tenant or patient impact.

Gas, oil, or electric. Forced air, hot water baseboard, or steam. Whatever system is in your home or building, our team is equipped to diagnose and service it. Most Rhode Island homeowners aren't aware that a licensed plumber and heating contractor can service their boiler — and many heating-only companies aren't equipped to handle the plumbing side of a hydronic heating system. We hold both licenses, which means we cover both sides of the work.

Upfront pricing, fast response, and solutions that last

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130+ years of continuous operation in the state of Rhode Island

The Sectors We Serve

Our commercial division has direct project experience across the building types where mechanical failure carries the most consequence.

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High-rise residential buildings — plumbing systems, booster pump stations, and rooftop mechanical across multi-story residential towers

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Condominiums and HOA-managed properties — full mechanical scope for association-managed buildings, including boiler plant service and common-area plumbing

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Hotels — utility infrastructure, boiler and HVAC service, and plumbing systems for hospitality facilities where guest impact is immediate

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Hospital and medical facilities — commercial mechanical work in environments where compliance, reliability, and response speed are non-negotiable

Established in 1889. Still the Same Family. Still the Same Standard.

F.G. Lees & Son is Rhode Island's oldest plumbing company — fifth-generation, family-operated, and still based in Providence. Commercial clients evaluating contractors for a hospital, a hotel, or a high-rise are not looking for a company that is figuring out commercial mechanical work. They are looking for one that has been doing it for generations.


We hold Navien factory certification for high-efficiency boiler service, own our excavation equipment, and carry the licensing required for commercial mechanical work across Rhode Island. Our record with the Better Business Bureau reflects the same standard we have maintained since 1889.

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Frequently Asked Questions from Commercial Clients

  • Does F.G. Lees work on high-rise buildings and multi-story commercial properties?

    Yes. Our commercial division has direct experience servicing high-rise residential buildings, condominiums, hotels, and medical facilities in Rhode Island. We are equipped for the access requirements, system complexity, and coordination demands that large commercial properties involve.

  • Can one contractor handle our plumbing, boiler, and rooftop HVAC needs?

    We cover commercial plumbing, all boiler system types, rooftop HVAC units, and booster pump stations under a single contractor relationship. For building owners and property managers, that means fewer vendors to coordinate and a single point of accountability across the mechanical scope.

  • Do you perform excavation work in-house or subcontract it?

    We own our excavation equipment and perform all underground work — including water main and sewer lateral replacement — with our own crews. We do not subcontract excavation, which keeps timelines tighter and accountability clear on commercial projects.

  • Are you certified to service high-efficiency boilers in commercial buildings?

    Yes. We hold Navien factory certification for high-efficiency boiler service, which requires training that most Rhode Island plumbing and HVAC contractors do not complete. We also service steam, hot water, and electric boiler systems across all commercial building types.

  • How do I get a quote for a commercial plumbing or mechanical project?

    Commercial projects are assessed on-site before we quote. Contact us through the form on this page or call our main line during business hours. We will gather initial project details and schedule a site visit with a member of our commercial team. Urgent mechanical failures are handled through our 24-hour line.

Serving Rhode Island's Commercial Properties for Over 130 Years

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Let's Talk

Commercial projects require a different intake process than a residential service call. When you contact us, we will gather information about the building type, system configuration, and scope of work, then schedule a site assessment with a member of our commercial team. We do not quote commercial mechanical work over the phone.


To start the process, use the form on our contact page or call our main line during business hours. Our staff can take initial project information and route your inquiry to the right member of our team. For urgent mechanical failures at a commercial property, our line is staffed 24 hours a day.