Commercial Heating Services

Heating System Installation and Equipment Upgrades

When your heating system is outdated or failing to meet performance demands, a professionally installed replacement can restore comfort while reducing your long-term energy costs. At Aquinas HVAC, we install commercial-grade heating systems that are built for reliability, efficiency, and code compliance.

We install and replace:

• Gas furnaces
• Electric furnaces
• Heat pumps used for heating
• Wall-mounted and ceiling-mounted units

Our installation process begins with an assessment of your current system and building requirements. We then help you select a properly sized unit with modern features that will deliver balanced heat, reduce energy waste, and support consistent indoor comfort.

Fast, Effective Commercial Furnace Repairs

If your building’s heating system stops working—or starts running inefficiently—you need a team that can diagnose and fix the problem fast. Aquinas HVAC provides responsive commercial furnace repair services across California, helping you resolve issues quickly to minimize disruption.

We repair systems experiencing:

• No heat or inconsistent heating
• Frequent cycling or startup failure
• Airflow or ventilation issues
• Noisy or vibrating operation
• Thermostat problems or temperature fluctuations

Our certified technicians work with all major equipment brands and arrive prepared to complete most repairs on the spot. When additional work is needed, we provide clear estimates and prioritize rapid turnaround to restore comfort as quickly as possible.

Heating System Maintenance You Can Trust

Regular heating maintenance is critical to avoid mid-season breakdowns and to ensure your system runs at peak efficiency. Aquinas HVAC offers commercial HVAC maintenance services that focus on the tasks that truly matter for large buildings.

Our full commercial HVAC maintenance process includes:

• Changing air filters to protect system components and maintain airflow
• Testing the heating system to confirm performance and safety
• Testing the cooling system as part of a full-season readiness check
• Inspecting evaporator coils to prevent restricted airflow and system strain
• Blowing out the condensate drain line with nitrogen to eliminate buildup and prevent clogs
• Tightening all electrical connections to reduce fire risk and ensure proper operation
• Inspecting refrigerant lines to detect leaks or wear
• Verifying that the AC unit is level to support proper drainage and system balance

This maintenance routine helps extend system life, reduce energy consumption, and improve indoor comfort for your tenants or staff. Preventative service also reduces your risk of costly emergency calls in the middle of winter.

Multi-Family Heating Services

Managing heating in a multi-family building is about more than just mechanics—it’s about communication, access, and speed. Aquinas HVAC supports apartment complexes, duplexes, and mixed-use properties with reliable heating service designed for tenant environments.

We help building owners and property managers with:

• Shared system troubleshooting and repairs
• Replacement of outdated or failed heating equipment
• Regular maintenance to avoid tenant complaints or code violations
• Coordination with on-site management for minimal disruption

Our team understands the challenges of managing multiple units and works efficiently to complete repairs and upgrades with as little tenant disruption as possible.

Do You Need Heating Service? Watch for These Signs

If you’re unsure whether your building’s heating system needs attention, here are some common red flags to look for:

• Uneven heating across floors or zones
• Rising energy costs with no clear explanation
• Frequent on/off cycling of the system
• Unusual noises during operation
• Complaints from tenants or occupants about temperature or air quality

A quick service visit from our team can help you determine whether the issue is minor—or whether it’s time to plan for a larger repair or upgrade.

Why Choose Aquinas HVAC for Commercial Heating

We don’t approach heating service with a residential mindset. Our team is trained and equipped to handle the larger capacity systems found in commercial and multi-family settings—and we understand the operational demands of your building.

Clients choose Aquinas HVAC because we:

• Respond quickly and professionally to urgent issues
• Deliver clear explanations and cost-effective options
• Work around your building’s schedule to minimize disruption
• Stay focused on long-term performance, not just short-term fixes

Whether you manage five units or five floors, we’ll make sure your heating system is safe, efficient, and ready for anything the season brings.