Heating & Cooling


Heating, Cooling, Hot Water & More

A Comprehensive Full Services Provider

Installations, Service/Repair, Maintenance

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Anne Arundel County


Howard County


York County


Heating & Cooling Systems We Install

Traditional Ducted Systems

Good Installation Practices Come First

Although All-Air Systems prefers certain brands over others, we maintain accounts with and install several major brands of heating, air conditioning, and hot water equipment for 3 main reasons:

1. Benefit our customers – Having the capacity to offer all major heating and air conditioning brands gives us the versatility of providing you with the exact match system you need that meets your specific requirements and your budget!

2. Versatility – No one brand offers the best solution to every application.

3. Comprehensive expertise – All-Air Systems is a best in class heating and air conditioning company. As such, we believe that our team of technicians should receive training and experience in all major brands. This ensures that we are familiar with the specific type of system you are having installed.

Gas furnace installation

High Efficiency Systems

The ownership benefits of a higher-efficiency heating and air conditioning system are reduced electricity costs, local utility “at time of purchase” rebates, the largest 25c federal tax credit, and a short payback period.

Lennox Ultra High Efficiency heating and air conditioning installations

High-efficiency systems can also be installed with enhanced options that provide notifications about system operation, allow for remote diagnostics which can eliminate the cost of service calls, and monitor indoor air quality.

All-Air Systems service truck on installation job

One of our technician crews installing a high-efficiency heat pump system.

Standard Efficiency Systems

Budget Friendly Systems

Budget constraints?

We can provide you with a standard efficiency system that is budget-friendly. These systems may not have all the bells and whistles of premium models, but they are quality products proven to last.

Without compromising quality!

A system’s longevity is mostly based on whether the installing contractor followed proper installation procedures during the installation of your system.

Proper installation practices include: proper sized refrigerant piping and insulation, cleaning the pipe, flowing nitrogen when welding the pipe together, evacuating the system to a deep vacuum below 500 microns, charging the system with proper refrigerant based on subcooling for txvs and superheat for fixed orifice.

Lennox Merit HVAC lineup

Ductless Systems | Mini Splits

Cut away picture of house showing a ductless mini split air conditioning system in a house

Great for older houses where metal ducting will not fit or to treat areas separated from the central system.

ductless mini split air conditioner and heat pumps

Outdoor units take up a narrow footprint and are super quiet.

The Benefits of Ductless

High Efficiencies

These systems are at the top of the industry when it comes to operational efficiency. And unlike traditional air source heat pumps, these systems can heat down to -15F outside without the use of backup electric heat.

Versatility of Installation

These systems have a lot of flexibility. Perfect solution when there is no space for duct work. In addition, multiple differnt types of indoor units can be used to match room asthetics and indoor comfort.

We are a Fujitsu Elite Contractor = Extended Warranty from 10 to 12 YRS

Due to the extent of our continual training and dedication to the Fujitsu brand, we are glad to offer to our customers all of the extras that come along with that such as the free of charge extended warranty of 12 years! (That’s 2 years more than the standard warranty).

Fujitsu Elite Contractor
Fujitsu Elite Extended Warranty Applies

Click below to schedule your in home visit with one of our ductless systems specialists.

Wall Heaters

We install wall heaters for natural gas and propane. This is a perfect solution for treating cold spots in your house or for outbuildings instead of installing larger more expensive central systems.

Rinnai wall heater installations

Wall heater installed at the location of your choosing. Built-in pans to add water help humidify the air.

Rinnai wall heater direct through wall venting

The venting installed directly through the wall and terminated with an attractive cap.

Automatic Home Backup Generators

All-Air Systems installs Automatic Home Backup Generators too. Call us for details and to schedule your free initial consultation.

Accessories and Indoor Air Quality (IAQ)

Ask us about accessory devices for your heating and air conditioning system

Indoor Air Quality: Humidifiers, Air Scrubbers, Radon Mitigation Systems

Humidifier installations
Honeywell Air Filtration
IAQ Air Quality Installations
Radon Fan
If you want to learn more about indoor air quality read our Blog article.
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