Aerial view of a large commercial building with multiple rooftop HVAC units, emphasizing the essential need for professional, scheduled maintenance and repair for commercial HVAC services.

Commercial HVAC Installation in Santa Rosa, CA

Design-Build
Plan&Spec

Businesses want reliable and efficient HVAC Systems to keep their employees, customers and others who occupy their buildings comfortable and healthy year-round.

Simpson Sheet Metal is the go-to company for design, construction and installation of commercial HVAC systems for wineries, shopping centers, apartment complexes, HVAC for schools and other facilities. Commercial customers know they can depend on Simpson’s highly trained technicians, high-quality workmanship and quick response to service calls.

From our front office representatives to our estimators, foremen and technicians in the field, the Simpson team stands out among the competition for its expertise and commitment to getting it right every step of the way.

For over 40 years, our team has partnered with general contractors and developers to integrate efficient, reliable systems into office, retail, and industrial spaces across Sonoma County. 

HVAC planning is necessary to keep projects on schedule and ensure lasting performance. By coordinating early in the construction process, we help builders achieve seamless system integration, energy efficiency, and code compliance tailored to the demands of commercial businesses like yours.

Talk To Our Expert
Simpson Sheet Metal's employee organizing blueprints

Design-Build

Commercial architects, contractors and project managers rely on Simpson’s experienced team of union-trained employees for design-build commercial projects. Simpson designs, builds and installs HVAC systems in concert with other construction crew members, facilitating on-time project completion.

Simpson’s full-service sheet metal fabrication shop can supply additional architectural elements for any construction project.

Simpson employee installing commercial HVAC system

Plan&Spec

Simpson Sheet Metal can build commercial HVAC systems exactly as drawn.

Count on Simpson Sheet Metal for a fair bid and superior workmanship for any plan and specifications project.

Simpson's senior project manager studying architectural plans for a commercial HVAC project
Simpson employee carrying a piece of a HVAC duct on his shoulder on a jobsite (residential project)

Unmatched Residential Expertise

Simpson Sheet Metal can build commercial HVAC systems exactly as drawn.

Count on Simpson Sheet Metal for a fair bid and superior workmanship for any plan and specifications project.

Circles 1 Shape

Simpson Sheet Metal is the go-to company for design, construction and installation of commercial HVAC systems for wineries, shopping centers, apartment complexes, HVAC for schools and other facilities. Commercial customers know they can depend on Simpson’s highly trained technicians, high-quality workmanship and quick response to service calls.

From our front office representatives to our estimators, foremen and technicians in the field, the Simpson team stands out among the competition for its expertise and commitment to getting it right every step of the way.

For over 40 years, our team has partnered with general contractors and developers to integrate efficient, reliable systems into office, retail, and industrial spaces across Sonoma County. 

HVAC planning is necessary to keep projects on schedule and ensure lasting performance. By coordinating early in the construction process, we help builders achieve seamless system integration, energy efficiency, and code compliance tailored to the demands of commercial businesses like yours.

Commercial architects, contractors and project managers rely on Simpson’s experienced team of union-trained employees for design-build commercial projects. Simpson designs, builds and installs HVAC systems in concert with other construction crew members, facilitating on-time project completion.

Simpson’s full-service sheet metal fabrication shop can supply additional architectural elements for any construction project.

Talk To Our Expert
Simpson employee measuring HVAC duct at the residential new construction job site
Simpson employee installing HVAC unit at the residential job site

Simpson Sheet Metal can build commercial HVAC systems exactly as drawn.

Count on Simpson Sheet Metal for a fair bid and superior workmanship for any plan and specifications project.

Simpson Sheet Metal is the go-to company for design, construction and installation of commercial HVAC systems for wineries, shopping centers, apartment complexes, HVAC for schools and other facilities. Commercial customers know they can depend on Simpson’s highly trained technicians, high-quality workmanship and quick response to service calls.

From our front office representatives to our estimators, foremen and technicians in the field, the Simpson team stands out among the competition for its expertise and commitment to getting it right every step of the way.

For over 40 years, our team has partnered with general contractors and developers to integrate efficient, reliable systems into office, retail, and industrial spaces across Sonoma County. 

HVAC planning is necessary to keep projects on schedule and ensure lasting performance. By coordinating early in the construction process, we help builders achieve seamless system integration, energy efficiency, and code compliance tailored to the demands of commercial businesses like yours.

Commercial architects, contractors and project managers rely on Simpson’s experienced team of union-trained employees for design-build commercial projects. Simpson designs, builds and installs HVAC systems in concert with other construction crew members, facilitating on-time project completion.

Simpson’s full-service sheet metal fabrication shop can supply additional architectural elements for any construction project.

Talk To Our Expert
Simpson employee working on a residential HVAC installation
Simpson employee working on a custom metal pieces in the Simpson's metal fabrication shop

Simpson Sheet Metal is the go-to company for design, construction and installation of commercial HVAC systems for wineries, shopping centers, apartment complexes, HVAC for schools and other facilities. Commercial customers know they can depend on Simpson’s highly trained technicians, high-quality workmanship and quick response to service calls.

From our front office representatives to our estimators, foremen and technicians in the field, the Simpson team stands out among the competition for its expertise and commitment to getting it right every step of the way.

For over 40 years, our team has partnered with general contractors and developers to integrate efficient, reliable systems into office, retail, and industrial spaces across Sonoma County. 

HVAC planning is necessary to keep projects on schedule and ensure lasting performance. By coordinating early in the construction process, we help builders achieve seamless system integration, energy efficiency, and code compliance tailored to the demands of commercial businesses like yours.

Talk To Our Expert
Inside Simpson's on-site vast sheet metal fabrication shopSimpson's metal fabrication shop worker welding a custom metal piece for HVAC project

Simpson Sheet Metal is the go-to company for design, construction and installation of commercial HVAC systems for wineries, shopping centers, apartment complexes, HVAC for schools and other facilities. Commercial customers know they can depend on Simpson’s highly trained technicians, high-quality workmanship and quick response to service calls.

From our front office representatives to our estimators, foremen and technicians in the field, the Simpson team stands out among the competition for its expertise and commitment to getting it right every step of the way.

For over 40 years, our team has partnered with general contractors and developers to integrate efficient, reliable systems into office, retail, and industrial spaces across Sonoma County. 

HVAC planning is necessary to keep projects on schedule and ensure lasting performance. By coordinating early in the construction process, we help builders achieve seamless system integration, energy efficiency, and code compliance tailored to the demands of commercial businesses like yours.

Talk To Our Expert
HVAC repairs and maintenance for commercial and residential customers

The Importance of Early Coordination in Commercial HVAC Planning

Successful new construction projects always start with collaboration. When general contractors, architects, and HVAC professionals coordinate early, systems integrate smoothly with the building’s structure. This proactive approach ensures all ducts, piping, and mechanical equipment fit without costly redesigns or unnecessary delays.

Early planning helps:

-Align HVAC layouts with electrical and plumbing systems so trades work together without conflicts or rework.

-Optimize equipment placement for performance and accessibility, ensuring future service and repairs remain simple.

-Incorporate energy-efficient designs to reduce operating costs and enhance sustainability goals.

-Confirm building code compliance before construction begins, preventing costly violations or project delays.

-Identify potential site challenges and resolve them before they disrupt progress, saving time and budget.

When developers bring Simpson Sheet Metal Heating & Air Conditioning in early, they gain a trusted partner who delivers efficient, inspection-ready HVAC systems that keep projects running seamlessly and on schedule.

Key Phases of Commercial HVAC System Design and Installation

A reliable HVAC system requires more than installing equipment—it follows a series of precise phases that shape performance for years to come. Simpson Sheet Metal ensures every step supports comfort, efficiency, and compliance.

Phases of our commercial HVAC system design and installation include:


-System design: Engineers create layouts tailored to the building’s size, use, and airflow demands.

-Equipment selection: Choosing high-efficiency units that balance performance and operating costs.

-Installation: Skilled technicians integrate ductwork, piping, and controls with the construction schedule.

-Testing and verification: Systems undergo performance checks to confirm airflow, efficiency, and safety standards.

By carefully managing each stage, Simpson Sheet Metal delivers custom commercial HVAC solutions that align with project goals and long-term operational needs.

Simpson Sheet Metal’s Expertise and Community Connection

For over 40 years, Simpson Sheet Metal has delivered reliable commercial HVAC services in Santa Rosa and the surrounding communities. Our team understands the demands of complex projects and delivers systems that meet high standards for performance and efficiency.


-Decades of expertise: We design and install HVAC systems for office buildings, retail centers, and industrial facilities with precision and consistency.

-Tailored solutions: We adapt each system to meet specific project goals, from energy efficiency to comfort and code compliance.

-Family-centered approach: Our company culture emphasizes trust, accountability, and close collaboration with contractors and developers.

-Deep community roots: As a Santa Rosa business, we support local growth and strengthen relationships by creating comfortable spaces where people work, shop, and gather

Partner With Simpson Sheet Metal for Your Next Project

Successful new construction projects depend on more than firm foundations and modern design—they require HVAC systems that perform reliably from day one. Simpson Sheet Metal Heating & Air Conditioning brings over four decades of experience to every project, helping contractors and developers achieve energy-efficient, code-compliant results. Our team collaborates early, customizes solutions to your exact needs, and delivers precision throughout design, installation, and testing.

We don’t just install systems; we build lasting partnerships. General contractors and developers trust us to provide dependable commercial HVAC services that support both project success and long-term building performance.

Request a project quote today to see how our expertise can elevate your next commercial build in Santa Rosa.

Image credit: // Shutterstock // Oak City Drone

Proudly providing commercial and residential HVAC and sheet metal fabrication services in the region for more than 40 years.

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Crafting comfort
with precision
Crafting comfort
with precision