Commercial Duct cleaning is one of Valley Heating and Coolings specialties.

Call now for a free estimate to clean your HVAC system(s) in your office, retail, or other type business.

What is included in our commercial HVAC system cleaning:

• HVAC Units
• Return Air Chamber
• Fresh Air Chamber Mixing Box Air Chamber
• Coil(s) Compartment
• Fan Housing
• Condensate Pan
• Humidifier
• Dehumidifier
• Filters Housing
• Louvers
• HVAC Supply Return Ductwork, Dampers Turning Vanes
• Exhaust Ducts, Dampers, Fan(s) Housings
• Wall Floor Registers Ceiling Diffusers

Our Method

Valley Heating and Cooling uses source removal techniques for cleaning your heating and air conditioning system. Source removal is the term used for the process of removing contaminants from the site.

Duct cleanings are performed using our truck-mounted High-pressure vacuum, with pneumatic operated octopus and brushes. When needed a special commercial duct cleaning unit will be crane lifted to the rooftop for two story and higher buildings.

The following procedures are used to clean the HVAC system(s):

1. Inspect package unit, and start up unit to confirm which supplies are attached to unit
2. Drop cloths are placed to protect flooring and over furnishings, if necessary.
3. Cut access for supply side of system (supply plenum), and isolate return side from supply side
4. Hook up vacuum hose to supply opening made, and start vacuum.
5. Remove all supply registers and cover all supply vents to generate higher suction
6. If necessary supply and return networks are zoned in order to be cleaned separately.
7. Cleaning begins, starting at the furthest vent from the system. For wire flex ductwork, use air source removal (air gun), and blow into supply while it is still under vacuum to remove dirt from ducting. Then use duct ball line down each supply (this depends on condition and size of wire flex). For KD and Spiral ducting, a variety of attachments will be used while it is still under vacuum. An octopus will be fed down and/or then the brush will be fed down each supply (this depends on the amount of build-up found).
8. The areas to be cleaned will be air washed, swept with forward or reversed air at 175 PSI (pounds of pressure per square inch) power brushed and/or whipped to remove all visible dust and debris.
9. Access return plenum. Attach vacuum hose to remove all dirt from return duct. Continue process as above.
10. Clean return and supply diffusers with air. Clean and wipe down where possible (some grills do not have open access)
11. Clean package unit. Pull blower and thoroughly clean around motor, blower housing, and squirrel cage. Chemically wash indoor and outdoor coils. Replace filters.
12. Put covers over access made in supply for future use. Seal tightly.
13. All service openings made to allow access for cleaning will be sealed with re-usable airtight, sheet metal access panels with gaskets screwed to ducts.
14. All 2 1/2 inch openings or smaller will be sealed with airtight knockout plugs.
15. Re-install grills and wipe down
16. Restart unit

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The Benefits:

The U.S. Environmental Protection Agency ranks indoor air pollution as one of top five environmental threats to public health. Studies have shown that pollutant levels indoors are often 2-5 times higher than those found outdoors. Since people spend the majority of their time indoors, the home, school or workplace are locations where exposure to indoor contaminants is the highest concern.

Indoor air pollutants can increase the risk of illness. In the workplace and school increasing health problems will result in decreasing productivity and attendance.

Sick Building Syndrome and Building Related Illness are terms used to describe the negative health effects and illnesses directly related to the time spent in a building. Lawsuits directed at building owners have become more frequent, as people realize that there is a relationship between poor indoor air quality and the illnesses it may cause.

Many contaminants that contribute to poor indoor air quality are found in the HVAC System. In an October 1997 report the EPA stated that if not properly maintained, air duct components may become contaminated with particles of dust or other debris. If moisture is present, the potential for microbiological growth is increased and mold spores may be released in the indoor environment. Cleaning a dirty and improperly maintained HVAC System will significantly improve indoor air quality.