Ductwork That Drives HVAC Performance and Efficiency

Air ducts are more than just metal pathways. They’re the circulatory system of your commercial HVAC system. When ductwork is improperly sized, poorly maintained, or damaged, the entire building suffers. Inconsistent airflow, temperature imbalances, high utility bills, and indoor air quality problems often trace back to ductwork issues.

At Aquinas HVAC, we provide professional ductwork services for commercial and multi-family properties, ensuring your building receives consistent, energy-efficient airflow. Whether you’re designing a new HVAC system, correcting underperforming ducts, or replacing aging materials, we deliver solutions that help your system work smarter—not harder.

Call Us for a Commercial Ductwork Estimate
Exposed commercial HVAC ductwork with insulated supply and return lines for efficient airflow.

Air Duct Installation and Replacement for Commercial Buildings

When it comes to HVAC system performance, your duct layout matters. Ducts must be properly designed to handle the air volume required by your system and tailored to the layout of your building. Poor duct design can lead to hot and cold spots, excessive strain on your equipment, and high energy costs.

Our commercial ductwork services include:

  • Custom ductwork design and layout
  • High-efficiency duct material selection
  • Full-system duct replacements
  • Zoning system integration
  • Compliance with code and energy standards

If your property is undergoing a remodel or expansion, or if your current duct system is no longer performing efficiently, Aquinas HVAC can install or replace ductwork that’s properly balanced and built for long-term performance.

Air Duct Repair Services That Solve Uneven Airflow

Over time, commercial duct systems can develop leaks, insulation damage, or physical disconnections—especially in aging buildings or systems that have undergone multiple retrofits. Even minor damage can result in major energy losses and reduced comfort throughout the property.

We provide targeted air duct repair services to correct:

  • Leaky or crushed duct runs
  • Loose or separated joints
  • Missing or damaged insulation
  • Noisy or vibrating ducts
  • Airflow restrictions or pressure imbalances

Aquinas HVAC technicians perform detailed inspections using advanced tools to identify problem areas and recommend cost-effective solutions. We restore duct integrity and ensure your HVAC system can deliver air evenly to every part of the building.

Ductwork Maintenance Keeps Your System Running Clean and Efficient

Routine ductwork maintenance is essential to the overall performance and longevity of your HVAC system. Dust, debris, mold, or insulation breakdown inside the ducts can lead to air quality issues and added wear on your equipment. Our duct maintenance services help you avoid unexpected problems and costly breakdowns.

Here are some of the maintenance services we perform:

  • Ductwork inspections for leaks and wear
  • Airflow and pressure testing
  • Preventative sealing and insulation checks
  • Recommendations for future hvac system upgrades or cleanings

This proactive approach allows you to catch small issues early—before they cause major system inefficiencies. When ductwork is sealed and flowing properly, your HVAC system doesn’t have to work as hard to achieve comfort throughout the building.

When Should You Replace or Reroute Commercial Ductwork?

While many duct issues can be repaired or sealed, there are situations where a full replacement is the best path forward. You may need to replace or redesign your ductwork if:

  • Your building has been repurposed or reconfigured
  • Ducts are visibly rusted, crushed, or corroded
  • Airflow is inconsistent across large zones or floors
  • The system is noisy or showing signs of poor pressure balance
  • You’re upgrading to new HVAC equipment with different airflow requirements

Our team will evaluate your building’s layout, current HVAC setup, and duct condition before recommending replacement. If rerouting or resizing ducts will help your system perform more efficiently, we’ll design a layout that improves both airflow and energy use.

Serving Commercial and Multi-Family Properties Across California

Aquinas HVAC works with property managers, building engineers, and facility owners to provide trusted ductwork solutions across California. Whether you’re maintaining a multi-family housing complex or operating a stand-alone commercial building, our duct services support a wide range of property types and system configurations.

From new duct installations in retail centers to airflow repairs in apartment buildings, we bring the experience and attention to detail your property deserves. When your HVAC system is supported by a high-quality duct network, you see the difference in energy bills, tenant comfort, and long-term reliability.

Satisfied Clients

Our commitment to excellent service and quality workmanship has earned us rave reviews.

Our Locations

We proudly serve multiple locations in California, including the Bay Area, San Diego, and Orange County. Contact us for exceptional HVAC services near you.

Santa Clara, CA

2273 De La Cruz Blvd.
Santa Clara, CA 95050

San Diego, CA

7438 Trade St.
San Diego, CA 92121

Santa Ana, CA

1435 E Borchard Ave.
Santa Ana, CA 92705

Contact Us

Reach out to Aquinas HVAC for all your commercial and multi-family HVAC needs. Our expert team is ready to provide you with reliable, honest, and experienced service.