HVAC Duct Services

Southeast Michigan

Estimates Provided Within 2-3 Days

Warranty Options Available

Weekend Emergency Services

Request Lorem Epsom

Hero Request Form

HVAC Ductwork Solutions for Commercial Properties

Alliance Mechanical delivers comprehensive HVAC duct services for commercial facilities throughout Southeast Michigan. Since 1969, our locally owned company has provided reliable ductwork installation, repair, design, and custom sheet metal fabrication. With more than a century of combined experience, our team handles projects from initial planning through final installation with precision and efficiency.

Properly functioning ductwork keeps your commercial spaces comfortable and energy-efficient. Our services include detailed estimates delivered within 2-3 days, weekend emergency support, and comprehensive warranties covering both labor and installation. Contact Alliance Mechanical today to discuss your commercial HVAC ductwork needs.

Alliance Mechanical delivers comprehensive HVAC duct services for commercial facilities throughout Southeast Michigan. Since 1969, our locally owned company has provided reliable ductwork installation, repair, design, and custom sheet metal fabrication. With more than a century of combined experience, our team handles projects from initial planning through final installation with precision and efficiency.


Properly functioning ductwork keeps your commercial spaces comfortable and energy-efficient. Our services include detailed estimates delivered within 2-3 days, weekend emergency support, and comprehensive warranties covering both labor and installation. Contact Alliance Mechanical today to discuss your commercial HVAC ductwork needs.

Why Choose Us

Black clipboard with dollar sign next to calculator, representing billing or accounting.

Estimates Provided in 2-3 Days

Hands holding a gear with a bar chart icon inside

Weekend Emergency Services

Black hard hat with shield and checkmark icon, suggesting safety approval

90‑Day Labor Warranties on Repairs

Technician checking HVAC refrigerant gauges on rooftop air conditioning units
Black certificate icon with document, ribbon seal, and checkmark badge

1‑Year Manufacturer & Install Warranties

Three people standing on a podium with stars above them, black silhouette icon

Over 100 Years of Combined Experience

Black location pin with a white house icon over a circular map marker

Locally Owned Since 1969

Black-and-white icon of a curved staircase or spiral staircase segment

Commercial Duct Installation

Our commercial duct installation services deliver optimal airflow and system performance. We handle complete ductwork systems for new construction and facility expansions with professional craftsmanship.
Black industrial machine icon with a beaker and wavy heat lines below.

Commercial HVAC Ductwork Repair

When ductwork fails, our repair services restore proper function quickly. We offer 90-day labor warranties on all repairs and weekend emergency services for urgent situations.
Black icon of a faucet with water flowing into a showerhead, plus a small menu box above it.

HVAC Ductwork Design

Effective ductwork begins with strategic design. Our experienced team creates custom duct system layouts that maximize efficiency and meet your facility's specific heating and cooling requirements.
Black industrial press striking a metal part, with sparks or impact marks shown.

Sheet Metal Fabrication

Alliance Mechanical fabricates custom sheet metal components on-site to exact specifications. Our fabrication capabilities deliver perfect fits and seamless integration with your existing HVAC systems.

Our Recent Projects

Turquoise ocean waves crashing with white foam and spray
Aerial view of a winding river cutting through dense green forest
Wind-swept sand dunes with long diagonal shadows in warm light
Two overlapping black chat bubbles with three dots, symbolizing messaging or conversation

Here's what our satisfied customers are saying...

At Alliance Mechanical, we take pride in providing exceptional commercial installation, repair, and seasonal maintenance to our customers. We would be grateful if you could share your thoughts about our contractors with others. Your feedback helps us improve and helps others make informed decisions. Please take a moment to leave a review of Alliance Mechanical and let others know what you think.