Proper filter maintenance varies, depending on the type of HVAC units, the filtering systems employed, and the contaminants being removed from the air.  Facilities such as hospitals or food processing plants may have air quality standards to be considered. 

We begin every job by surveying all HVAC units to determine the number and types of filters required.   We then consult with the customer to determine the frequency that filters will need to be replaced.  Because every job is unique, we do not employ averages, guesstimates, or give customers "the usual".  Each job has its own solution, developed with the customer based on our mutual assessment of what needs to be done.  Every new customer receives a written quote that notes each HVAC unit, the filter types and sizes it uses, the change frequencies agreed upon, and the cost of the job. 


Many of our customers prefer to buy filters directly, but do not wish to tie up money and space storing them. Let us know your needs, and we can make arrangements to provide scheduled deliveries of the exact sizes and quantities needed, when they are needed. 


The most common filters in use today are pleats or polyester pads.  However, a wide variety of filter types are still in use, including:

 • Cartridge Filters

 • Baghouse & Sock Filters

 • Paint & Overspray Filters 

 • Styropad Filters

Little Rock Filter Service maintains relationships with manufacturers across the country, and can source these and other types of unusual filters.