Commercial HVAC & Mechanical Services

Commercial Rooftop HVAC System Experts

Precision RTU installation and rooftop unit replacement for industrial facilities and commercial complexes. Engineered for peak performance and longevity.

Complete Rooftop Unit (RTU) Lifecycle Management

From advanced load calculations to professional crane-lifted installations, we provide end-to-end mechanical solutions for modern commercial infrastructure.

Retrofit

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Rooftop Unit Replacement

Mechanical System Modernization

Seamless removal and replacement of aging units with custom curb adapters and high-efficiency RTU configurations.

Precision

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RTU Installation

Packaged Rooftop Units

Expert installation involving precise load calculations, airflow design, and seamless system commissioning for new builds.

Optimization

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HVAC Upgrades

Energy-Efficient Solutions

Boost your operational reliability with the latest energy-efficient rooftop units designed to lower utility costs significantly.

Reliability

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Mechanical Maintenance

Long-term Performance

Strategic preventative maintenance to ensure your commercial HVAC systems operate at peak engineering specifications.

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Crane Lift Logistics

Full site coordination for safe rooftop rigging and complex equipment hoisting operations.

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Load Calculations

Precise BTU assessment to ensure your new RTU is perfectly sized for your facility's square footage.

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System Commissioning

Rigorous post-installation testing of dampers, economizers, and controls for verified performance.

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Curb Adapters

Custom-engineered adapters to match existing roof openings with modern unit footprints perfectly.

Engineering-Driven Commercial HVAC Replacement

At Groupe Rousso, we specialize in commercial rooftop HVAC systems for light industrial and institutional buildings. We recognize that an RTU installation is a critical investment in your building's operational efficiency. Our approach combines technical depth with logistical precision.


Serving Greater Montreal for over 30 years, our team handles everything from mechanical retrofits to energy-efficient rooftop unit upgrades. We ensure every packaged rooftop unit we install is calibrated for optimal airflow design and long-term operational reliability.

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Certified RTU Experts

Specialized technicians trained in light industrial HVAC systems.

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Precision Installation

Proper sizing and system commissioning for maximum efficiency.

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Turnkey Retrofit Management

From structural engineering to final electrical hookups.

Specialized Mechanical Solutions

Groupe Rousso is the premier choice for commercial HVAC replacement in Montreal. We provide light industrial HVAC systems that prioritize cost savings and environmental sustainability. Our expertise in mechanical system modernization allows property managers and general contractors to upgrade aging infrastructure with energy-efficient rooftop units that deliver consistent performance. By focusing on proper sizing and detailed load calculations, we prevent the common pitfalls of short-cycling and premature equipment failure, ensuring your rooftop HVAC experts deliver a system that stands the test of time.

Retail Plazas

Warehouses

Office Buildings

Data Centers

Schools

Clinics

Client Success Stories

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"The rooftop unit replacement for our logistics center was handled flawlessly. From the crane lift to the final commissioning, the team was professional and the new system is incredibly efficient."

David G.

Facility Manager, Lachine

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"Expert RTU installation for our commercial plaza. They optimized our airflow design which significantly reduced our monthly energy bills. Best HVAC experts in Montreal."

Lucia M.

Real Estate Developer

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"Managing a light industrial facility requires reliable partners. Groupe Rousso's mechanical modernization was transparent, on-budget, and high-quality."

Robert T.

Industrial Operations Lead

Consult with Rooftop HVAC Experts

Discuss your mechanical retrofit or new RTU installation with our engineering-focused team.

HVAC Systems Contact Form