“air duct cleaning system _importance of air duct cleaning”

Your Heating, Ventilating, and Air-Conditioning system (HVAC) will consist of either a furnace and AC or a heat pump, which both heats and cools. Both types will have an interior unit (evaporator and blower) and an exterior unit (condenser coil and compressor). These instructions apply to a whole-home air-conditioning or heat pump unit.
While you consider having your air ducts cleaned, it is a good idea to take a look at your dryer vent. If your dryer vent is clogged, you could be losing energy efficiency. Worse yet, you could be increasing the risk of a house fire. Having your dryer vent professionally cared for costs about $130 on average, and could save you a bit of money and a lot of headaches in the future. For more information on the benefits and cost of having your dryer vent cleaned, take a look at our comprehensive cost guide.
There are many things that people can do themselves in regards to HVAC when given the needed information. I am glad you find this useful. I have and will continue to publish hubs that not only show people things about HVAC they can do themselves but will also save very significant amounts of money. HVAC is an expensive service so anything you can learn to do yourself will save a minimum of $125 as this is the common base rate of a licensed service trip.
Air Duct Cleaning companies supposed to come up with the packages and clear explanation what and how they going to do the job. Method described below by Steve Marshall called “Push and Pull” and it is one of the most effective ways to remove dust and debris from the “length of your house”. 
I did the $49.00 Groupon they just left. Basiclly all they did was stick a shop vac type hose into the vent supply and one return. I also had the dryer done. the person in charge pointed to the main return inside my humidifier and said it needed cleaning
If you have a forced-air furnace, you’ve already got a rudimentary air-filtration system: That matted-fiberglass filter that should be changed once a month. “You can’t change it often enough,” says This Old House plumbing and heating expert Richard Trethewey. When it clogs with dust, it stops working and overworks the furnace. In fact, those filters are designed to protect your furnace from large particles of dust, and while they might keep surfaces in your house a bit cleaner, they won’t block the microscopic particles that are most irritating to lung tissue. Pleated filters, which pack more material in the same amount of space, cost a few bucks more and do a slightly better job. By far the best pleated filters are electrostatically charged to attract allergens like pollen and pet dander. They cost around $15 and should be changed every two to three months.
We are a hvac company that provide air duct cleaning service are minimum charge $400 to do a proper air duct cleaning with 2 techs avg 3-6 hours that includes sanitizing. I get phone calls all day about the $99 your not going to get much of a cleaning for that price it for them to get there foot in the door and up sell that the only way for them to stay in business. Just from my 15 years of duct cleaning experience.
I reiside in the NE and lived in house for 43 years and avoided duct cleaning due to concerns about the amount of dust etc that would inevitably blow back into house after being disturbed. Is that valid?
This is an interesting article, I am in the air duct cleaning business and have a background in HVAC and the posts by John F. and Nicholas made me want to explain a few things that can help homeowners.
“Jeff and a partner (forgive me, I forgot his name) were very helpful, friendly, clean, and fast. They explained everything to me, how its done, showed me the equipment they use, used nontoxic chemicals, and gave our AC vents and ducts a thorough cleaning. The air smells great! They also gave me an estimate for tile cleaning service which I really appreciated. ”
I to had an odd layer of white’ish dust building up especially during seasonal periods when the HVAC ran a a lot. I carefully swept up the fine dust into a small pile and had it analyzed. Turns out it was very fine fiberglass powder dust. It turns out it is the insulation form the attic! (My attic has blown in insulation). Turns out if you (I) had small gaps around my HVAC registers in the ceiling whee the airs blows into the room. What occurred in my case was that the exiting air at that seam creates a vacuum effect at the grate vent cover and draws and then blows fine insulation dust from the attic into the house. Removing each register grate and sealing each tin outlet gap with calking between the dry wall ceiling and tin fixed the issue. A couple were so bad with bowed gaps I had to screw down the bowed tin to the attaching stud better. Checking the very same glass top desk that catches and shows any dust accumulation now shows only very small amounts of normal house dust build up over several weeks. A big, big improvement. You might have a look by simply removing a couple vent covers yourself.
First of all, I think it is great that there are many companies out there who look out for the customer and protect their interest. Secondly, I think it is also that customers consider having their HVAC systems checked thoroughly before moving into a new home. I have heard a couple of horror stories where previous owners have not had the best housekeeping skills. Even when the appearance of the home seems it has been well kept, keep in mind that surface clean only goes so far. You can never tell what lies underneath.

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