Commercial Package Unit Services in Northern California

Heating and cooling solutions for offices, retail spaces, restaurants, warehouses, and commercial buildings throughout Siskiyou County, Shasta County, and the surrounding Northern California region.

Licensed • Insured • Local Technicians

Rooftop and Package Unit HVAC for Local Businesses

Package units are one of the most common HVAC solutions for commercial buildings because they keep heating and cooling equipment contained in one efficient system. Whether your unit is mounted on the roof, beside the building, or serving a dedicated area of your facility, All Trade Services can help keep it running safely and reliably.

We work with commercial property owners, business managers, contractors, and facilities teams throughout Northern California. From troubleshooting an existing rooftop unit to planning a replacement, our team brings practical HVAC experience and a clear understanding of what businesses need: dependable comfort, minimal disruption, and service that is handled professionally.

Common Package Unit Applications

rooftop package unit

Rooftop Units

Rooftop package units are common on retail buildings, offices, restaurants, schools, medical spaces, and light commercial properties. They save interior space while providing heating and cooling through the building’s duct system.
Ground-Mounted Package Units

Ground-Mounted Package Units

Some commercial buildings use ground-mounted package units where rooftop access is limited or where the building layout makes exterior placement more practical. These systems still require proper airflow, service access, drainage, and electrical setup.
Gas/Electric Package Units

Gas/Electric Package Units

Gas/electric package units combine gas heating with electric cooling in one cabinet. These systems are common in commercial applications where reliable heat and air conditioning are both needed from a single piece of equipment.
Heat Pump Package Units

Heat Pump Package Units

Heat pump package units provide both heating and cooling using electric heat pump technology. They can be a good fit for some commercial buildings, especially when efficiency and all-electric operation are priorities.
Multi-Zone Commercial Buildings

Multi-Zone Commercial Buildings

Some buildings use multiple package units to serve different areas, tenants, or zones. This can help improve comfort control, reduce strain on individual systems, and allow separate areas of the building to operate independently.
Light Commercial Spaces

Light Commercial Spaces

Package units are often a practical choice for smaller commercial buildings, offices, shops, and service businesses that need dependable comfort without a complicated mechanical system.

Why Package Units Work Well for Commercial Buildings

Package units are popular in commercial HVAC because they combine major system components into one outdoor cabinet. This can simplify service access, reduce indoor mechanical space needs, and make replacement more straightforward compared to some split system setups.

For businesses, the biggest advantage is simplicity. A properly sized and installed package unit can provide dependable heating and cooling while keeping most of the equipment outside the occupied space. That means less disruption inside the building during service, maintenance, or replacement.

Choosing the Right Commercial HVAC System Matters

Commercial HVAC is not one-size-fits-all. A package unit needs to be sized and selected based on the building layout, insulation, occupancy, ductwork, electrical service, ventilation needs, and how the space is actually used.

An undersized system may run constantly and struggle to keep up. An oversized system can short cycle, waste energy, and create comfort problems. Our team looks at the building as a whole so your system is matched to real-world operating conditions, not just a quick equipment swap.

Commercial Package Unit Repair

When a package unit goes down, it can affect employees, customers, tenants, equipment, and daily operations. Our technicians can diagnose heating, cooling, airflow, electrical, thermostat, and control issues on commercial package units and rooftop HVAC systems.

We focus on identifying the actual problem, explaining repair options clearly, and helping you make the best decision for your building and budget.

Commercial Package Unit Installation and Replacement

If your existing unit is aging, unreliable, inefficient, or no longer keeping up with the building, replacement may be the better long-term option. All Trade Services can help evaluate your current equipment, building needs, ductwork, electrical requirements, and access considerations.

We install commercial package units designed for dependable performance, proper airflow, and efficient operation in Northern California’s changing seasons.

Preventive Maintenance for Package Units

Commercial HVAC systems work hard, and regular maintenance helps reduce surprise breakdowns, improve efficiency, and extend equipment life. Preventive service can include filter checks, belt inspections, coil cleaning, electrical testing, refrigerant checks, drain inspections, thermostat review, and overall system performance testing.

For businesses, maintenance is not just about comfort. It is about avoiding downtime, protecting equipment, and keeping the building operating smoothly.

Our Commercial HVAC Process

Here’s what working with us looks like:

1. Evaluate the Building

We look at the existing equipment, access, ductwork, electrical requirements, controls, and comfort concerns.

2. Identify the Best Options

We explain whether repair, replacement, maintenance, or system upgrades make the most sense.

3. Plan Around Your Operations

For commercial work, timing matters. We work to reduce disruption for employees, customers, tenants, and daily business operations.

4. Complete the Work Professionally

Our team handles the job with clear communication, quality workmanship, and attention to safety.

5. Support the System Long-Term

After installation or repair, we can help with maintenance and future service so your building stays comfortable year-round.

Frequently Asked Questions

What is a commercial package unit?

A commercial package unit is an HVAC system that contains heating and cooling components in one outdoor cabinet. These units are often installed on rooftops or beside commercial buildings and connect to the building’s duct system to distribute conditioned air.

Do package units provide both heating and cooling?

Yes, many commercial package units provide both heating and cooling. Some are gas/electric units, which use gas heat and electric air conditioning. Others are heat pump package units, which provide both heating and cooling using electric heat pump technology.

 

What types of buildings use package units?

Package units are commonly used on offices, retail stores, restaurants, warehouses, schools, medical buildings, shops, and other light commercial properties. They are popular because they save indoor space and make service access more convenient.

How do I know if my package unit needs repair or replacement?

If your system is making unusual noises, struggling to heat or cool, causing high energy bills, short cycling, leaking, or needing frequent repairs, it may be time to evaluate whether repair or replacement makes more sense. Age, repair cost, efficiency, and reliability all factor into that decision.

Do you service rooftop HVAC units?

Yes. All Trade Services services commercial rooftop HVAC units, including package units used for heating and cooling. Rooftop access, safety, and equipment condition are all reviewed as part of the service process.

How often should a commercial package unit be maintained?

Most commercial package units should be maintained at least twice per year, typically before cooling season and heating season. Buildings with heavier use, high dust, restaurant operations, or critical comfort needs may benefit from more frequent maintenance.

Can maintenance help lower commercial HVAC costs?

Regular maintenance can help improve efficiency, reduce unnecessary strain, catch small issues early, and lower the chance of unexpected breakdowns. For commercial buildings, preventive maintenance can also help reduce downtime and protect the comfort of employees, customers, and tenants.

Do you install new commercial package units?

Yes. All Trade Services installs and replaces commercial package units for businesses and commercial buildings in Northern California. We can help assess your current system, review replacement options, and plan the project around your building’s needs.

What size package unit does my building need?

The right size depends on the building’s square footage, insulation, ductwork, occupancy, windows, equipment loads, and how the space is used. A commercial HVAC system should be sized carefully to avoid comfort problems, wasted energy, and unnecessary wear.

 

What areas do you serve for commercial package unit service?

All Trade Services provides commercial HVAC and package unit services throughout Mount Shasta, Weed, Dunsmuir, McCloud, Yreka, Siskiyou County, Shasta County, and surrounding Northern California communities.

Can you replace an old rooftop unit with a more efficient system?

Yes. If your existing rooftop package unit is old, inefficient, or unreliable, we can help evaluate replacement options. A newer system may improve comfort, reduce energy use, and provide more dependable heating and cooling for your commercial building.

 
 

In many cases, available rebates through programs like Tech Clean California or HEEHRA can be applied directly to the project cost, helping reduce the total amount financed. We can walk through options during your estimate and help you find a setup that fits your budget.

Why Choose

ALL TRADE SERVICES?

- Local, reliable, and built to show up -

Local Team

When you call, you’re talking to real people who know the area.

We Show Up

Fast response times and clear communication from start to finish.

Fixed Right the First Time

Experienced technicians across HVAC, plumbing, and electrical.

One Call for All

If it turns into a bigger issue, you don’t need another contractor.

All Trade Services is a full-service HVAC, plumbing, and electrical contractor based in Mount Shasta, California. We’ve been serving Siskiyou County for over a decade, with a focus on quality workmanship and long-term customer relationships.

CALL NOW (530) 918-5547

Need Commercial Package Unit Service? Let’s Get It Handled.

A reliable HVAC system matters for your business, your employees, your customers, and your building. Whether your package unit needs a repair, routine maintenance, or full replacement, All Trade Services can help you find the right path forward.

Our team works with commercial buildings throughout Northern California and brings HVAC, electrical, and plumbing experience under one roof, making us a practical partner for business owners and property managers who need dependable service without chasing multiple contractors.

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Areas Served

We provide Heating & Air Conditioning Services, Maintenance & Installs in the following areas:

  • Mount Shasta, California
  • Weed, California
  • Dunsmuir, California
  • Castella, California
  • McCloud, California
  • Yreka, California
  • Etna, California
  • Gazelle, California
  • Fort Jones, California
  • Lake Shastina, California
  • Edgewood, California
  • Grenada, California
  • Montague, California
  • Callahan, California
  • Dorris, California
  • Siskiyou County, California
  • Shasta County, California
  • And more, just give us a call!

CONTACT ALL TRADE SERVICES

ADDRESS:
614 S Mount Shasta Blvd,
Mount Shasta CA 96067

Phone (call or text):
(530) 918-5547

Email:
office@alltradeservices.com