HRV- Air Exchanger Cleaning & Maintenance | Ductwork Cleaning |Mini Split Heat Pump Cleaning | HVAC Services

Mon-Fri: 8:00 - 6:00

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Conception Bay South, NL


Frequently Asked Questions

Still have questions about our services? Our most frequently asked questions about our home ventilation services can be found on this page. Can’t find what you are looking for? No problem! Simply Contact Us instead!

Mini Split Heat Pump Questions

Yes, the home owner is required to clean the filters.
We clean:
  1. both filters
  2. entire housing
  3. evaporator coil
  4. blower wheel
  5. condensate tray
  6. condensate drain
Safety first! Power off the unit. Wear eye protection and a dust mask.
1. Turn off the unit before servicing. Refer to the manufacturer’s instructions for your make and model.
2. Mini splits have 2 filters. Most are located inside the unit behind the front door panel. Most doors swing open from the bottom. Some doors will stay open on their own, some won’t. Use caution when handling these parts because they are plastic.
Some models have filters on the top of the unit, simply locate them and slide them out.
3. You’ll see two mesh type filters in a plastic frame. Remove both filters by lifting the them from the holding tabs on the bottom and slide them down and away from the unit.
4. Vacuum the debris from the filters. For heavily soiled filters, soak and rinse and dry.
5. Reinstall the filters by sliding the top in first, followed by the bottom.
6. Close the unit door.
6. Power up the unit and resume normal operation.

Most manufacturers recommend every two weeks.

The manufacturer uses the word “regularly” in their cleaning schedule. From our experience, annually deep cleaning is sufficient under normal operating conditions. More frequent cleanings may be requires if you own pets or smoke indoors.

Yes, the Condenser Coil Cleaner is specifically designed to safely clean sensitive HVAC equipment. It is non-fuming, non-caustic, and environmentally friendly. It complies with the manufacturers cleaning agent instructions.

No, in fact manufactures recommend using our cleanings “regularly” to maintain optimal performance and clean air.


Our cleaning services are non destructive and do not require removal of any mechanical parts or alterations to the original equipment. Our equipment is specifically designed to clean Mini split heat pumps.
All our services are competitively priced and we offer a lowest price guarantee. If you find a better price, let us know and we’ll beat it.

We offer Ductless Mini Split Heat Pump cleaning, HRV cleaning, Air Exchanger cleaning, Air Duct cleaning for all types of ducting and Dryer Vent cleaning. We also offer HRV and Air Exchanger system repair, installation and servicing.

We will cover all of your soft furnishings to protect them from any chemicals that we use. We can also provide further assurance that we try to choose non-caustic, safe chemicals that we then thoroughly rinse off to leave your system clean, fresh and dry. We will ensure all mess is removed once we are done to leave your house just as we found it. When you choose DeepClean NL you have no need to worry about damage.

We shouldn’t take longer than an hour or two to perform the task but we will be able to give you an accurate time span when we have evaluated your system and your situation. To be safe, schedule a morning or afternoon free on the day you wish your system cleaned, although it won’t take as long as you might think!

HRV, Air Exchanger Questions

Without at least an annual deep clean grease, grime, bacteria and mold affect your air quality. Worse, without this maintenance the product life of your whole HVAC or HRV unit can be reduced. IF you want your system to last you need to get it cleaned!

Technically speaking yes.


Air exchangers were typically installed in attics and unconditioned spaces. They removed stale air from the home and replaced it with fresh air form the outside. They had no means of recovering heat and were very inafficient, although they did reduce humidity. They no longer meet building code, therefor, are not sold or installed in new construction. Motors can still be purchased and installed in existing units.


Heat Exchangers, HRV’S and Hear Recovery Ventilators are terms used to describe the same thing. Todays heat exchangers have a “Core” inside the unit that is used to recover the heat leaving the home. This recovered heat is transferred to cold air from outsive via the core. and is distributed throughout the home. This cold air meeting a warm core creates condensation in the winter time and is expelled through the drain hose underneath the machine.


Most often, the terms air exchanger, heat exchanger, HRV and heat recovery ventilator are used interchanagably to describe a HRV.


Technically speaking, if it has a drain it’s a Heat Exchangers, HRV/ Hear Recovery Ventilator. If it doesn’t it’s an Air Exchanger.
Most manufactures recommend cleaning the filters every three months and core every six months. Professionally cleaning and servicing the system annually is recommended.


Here are some common manufacture brands and links to their information:
  • Venmar
  • VanEE
  • GreenTek
  • LifeBreath
Yes. Homeowners cleaning the filters and core only meet the minimal cleaning requirements stated by the manufacturer. Our cleaning method ensures the entire HRV, Air Exchanger is cleaned top to bottom and ensures the system is working properly.
The air/enviromental conditions within the home greatly impact how often deep cleaning is required, but typically it’s recommended to have it professionally cleaned and service annually.

The drain line does become dirty with time, this is normal. The drain line should be replaced if it becomes obstructed. Replacements are available.

The air exchanger is used to exhaust excess humid air in winter. Therefore, it is normal to see fog or ice on windows during cold weather. Many factors may contribute to this problem, such as: windows poor insulation quality, heating temperature, barrier in front of the windows (lack of ventilation near the windows caused by blinds, curtains, etc.), dominant winds, drastic changes in outside temperature, etc.


Do not wait to heat your home, especially in the basement. It will remove moisture that has accumulated during summer.

Air Duct Cleaning Questions

Air ducts should be cleaned every three to five years.

Air ducts that we clean are:

  1. Oil, wood and combination type furnace ducting.
  2. Heat pump zoned ducting systems.
  3. Home ventilation system ducting (heat recovery ventilator and air exchanger ducting) flexible duct and solid duct.
  4. Dryer Vent ducting.

Yes it is. Older systems may require duct inspection to determine the condition of the ducting before cleaning.

Each floor, wall and/or ceiling cover and its associated ducting. This includes the supply and return duct for furnace ducting.

The supply and exhaust ducting is cleaned in home ventilation system ducting.

Flexible ductwork that is damaged cannot be safely cleaned (ventilation systems). Solid ductwork that is not accessible due to its design and/or poor installation practices may not be effectively cleaned.

Yes, cleaners are used to clean the vent covers.

Yes, Furnace and Heat Pump systems are fogged with a fungicide, bacteriostat and deodorizer after the air duct cleaning. If the use of these cleaners are a concern, please advise us upon booking.

Depending on the size of the home, usually 2.5-5 hours.

We use an industrial HEPA Filter vacuum and offer disposable hearing protection to our customers. If any occupants are sensitive to noise, please let us know upon booking.

If you have pets that will be present during the cleaning that are sensitive to noise, please let us know upon booking.

For your convenience, we accept mobile payment at your home following the service. The types of mobile payments accepted are:
– Visa
– Mastercard
– American Express
– Discover
– Apple Pay
– Google Pay
– Interac Flash
– E-transfer

Other Questions

For your convenience, we accept mobile payment at tyour home. The types of mobile payments accepted are:
– Visa
– Mastercard
– American Express
– Discover
– Apple Pay
– Google Pay
– Interac Flash
– E-transfer
Our service area include:
  • St. John’s
  • Mount Pearl
  • Paradise
  • Torbay
  • Goulds
  • CBS
  • Holyrood
We can provide services outside our service for a nominal travel fee.