Commercial HVAC RTU Service

Commercial Rooftop Unit Service, Repair, and Replacement

Commercial rooftop-unit troubleshooting, repair, maintenance, and replacement for businesses and property managers throughout Lennelle Mechanical’s Western New York service area. Call, text, or request service online.

  • 25+ Years of Field Experience
  • Top-Rated Specialists
  • Residential & Commercial Expertise
  • 24/7 Online Support
Lennelle Mechanical

When your rooftop unit needs repairs, we provide full-service HVAC solutions and other add-on services, including plumbing and electrical repairs, so your system keeps running 24/7.

Commercial Project Example

Project type

Multi-unit commercial rooftop HVAC service

Customer issue

Three commercial rooftop units required evaluation after failing to provide the expected operation.

Work completed

Lennelle Mechanical performed systematic diagnostics, completed the necessary
corrective work, and tested the units through their operating stages.

Outcome

All three rooftop units were restored to operation and verified at project completion.

Commercial Rooftop HVAC Experience

Lennelle Mechanical provides commercial rooftop HVAC troubleshooting, repair, replacement, and planned maintenance. Our process emphasizes accurate diagnostics, documented findings, clear recommendations, and professional communication from the initial request through project completion

Required proof elements :

  • Real Lennelle commercial RTU project photographs
  • Brief factual captions explaining what was completed
  • Examples of troubleshooting, controls, component replacement, commissioning, or complete RTU replacement
  • EPA Section 608 Universal certification language only after the credential is verified for publication
  • Licensed and insured language only when the exact claim is legally and factually supportable
  • Approved commercial service-area statement
Lennelle Mechanical
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Whether you need residential repairs, commercial mechanical support, or equipment replacement, Lennelle Mechanical is ready to help with responsive service and professional solutions.

    Frequently Asked Questions

    Free commercial estimates are available for qualifying rooftop-unit replacement, planned maintenance, and project requests. Equipment troubleshooting or repair may require diagnostic evaluation before repair pricing can be established.

    Do you only work on commercial rooftop units?

    No. This page is specifically focused on commercial rooftop-unit service, repair, replacement, and maintenance. Lennelle Mechanical also reviews other commercial heating, cooling, ventilation, and equipment requests. Submit the equipment type, property ZIP code, and requested work so we can review the details and explain the appropriate next step.

    What information should I provide?

    Include the property location, equipment type, number of units, and a description of what the equipment is doing. Model and serial information and equipment photographs are helpful when available.

    Do you provide commercial RTU replacement estimates?

    Yes. Lennelle Mechanical provides free estimates for qualifying commercial rooftop-unit replacement and planned project requests.

    Can you service multiple rooftop units?

    Yes. Submit the property information, number of units, equipment details, and requested work so the project can be reviewed accurately.