Lawn Aeration

Lawn Aeration Toronto

What is Liquid Aeration, Core Aeration or Aerification?

aerate ontario lawns lawnsavers torontoTechnically speaking, aeration is the naturally occurring process of air exchange between the soil and its surrounding atmosphere. Practically speaking, liquid aeration is the process of either applying a blend of soil enhancing materials OR mechanically removing small plugs of thatch and soil from the lawn to improve soil aeration. The aeration process is also commonly called core aeration in the lawn service industry, but there is a better option.

The newest development in lawn technology and used by LawnSavers is “Liquid Aeration” using a proprietary blend of beneficial ingredients to aerate and improve soil structure without creating additional holes for weeds to flourish.  We call this our exclusive ‘NO-MESS Liquid Aeration’ treatment and it’s offered exclusively as part of our Protector lawn care program!

What are the Benefits of Aerating Your Lawn in Ontario?

There are many lawn aeration benefits. It helps to improve the lawn’s health and vigor and it reduces maintenance requirements, which is especially helpful in Ontario’s ever-changing weather. The following are other benefits of aeration:

  • Improved air exchange between the soil and atmosphere.
  • Enhanced soil water uptake.
  • Improved fertilizer uptake and use.
  • Reduced water runoff and puddling.
  • Improved turfgrass rooting.
  • Reduced soil compaction.
  • Enhanced heat and drought stress tolerance.
  • Improved resiliency and cushioning.
  • Enhanced thatch breakdown.
  • Liquid aeration adds essential carbon that builds life-supporting soil where it doesn’t exist in good supply. (like clay or sandy soils)

Aeration Equipment

The type of aeration equipment or method of application used influences the benefits obtained from aeration. Equipment with hollow tines removes soil cores. Aeration equipment varies in tine size up to ¾ inch and in-depth of penetration up to 3 inches,
The penetration depth depends on soil type, soil moisture, tine diameter, and the weight and power of the aerator. Penetration is better in moist soils than dry soils and will differ from lawn to lawn.  the main problem associated with Core Aeration is that it leaves an ideal spot for weed seeds to grow.  It can also puncture shallow sprinkler pipes or cut wires.  Many simply don’t like the mess!  That’s why we offer Our No-Mess Liquid Aeration

Liquid Aeration

Liquid Aeration promotes aeration and soil building through a chemical change at the soil particle level to reduce compaction and improve the flow and mobility of water and nutrients in the soil. It also reduces the chance for new weed seed germination and is safe for all properties (like those with shallow sprinkler system pipes or wires).

Why is Lawn Aeration Necessary?

In most Ontario home lawns, the natural soil has been seriously disturbed by the building process. Fertile topsoil may have been removed or buried during excavation of the basement or footings, leaving subsoil that is more compact, higher in clay content and less desirable for healthy lawn growth. These lawns need aeration to improve the depth and extent of turfgrass rooting and to improve fertilizer and water use.

Intensively used lawns are exposed to stress from traffic injury. Walking, playing and mowing are forms of traffic that compact soil and stress lawns. Raindrops and irrigation increase soil density by compacting soil particles and reducing large air spaces where roots may readily grow.

Aeration helps heavily used lawns and lawns growing on compacted soils by improving the depth and extent of turfgrass rooting, allowing better water uptake, enhancing fertilizer use and speeding up thatch breakdown.

lawn aeration toronto ontario Most home lawns are subject to thatch accumulation. If thatch is left unmanaged, it can lead to serious maintenance and pest problems. For example, thatch accumulation of more than ½ inch on Kentucky bluegrass lawns impedes water; fertilizer and pesticide effectiveness. Liquid Aeration reduces thatch accumulation, minimizes its buildup and modifies its makeup by incorporating soil into the thatch.

Ontario has a wide range of soil types depending on the region. Thatch accumulates faster on compacted soils, heavy clay soils, and subsoils that are disturbed during building processes than on well-aerated soils. Therefore, lawns in Ontario require frequent aeration to prevent thatch buildup. Most home lawns growing on heavy clay or highly compacted soils require annual liquid aeration to restrict thatch accumulation.

When to Aerate Lawn?

Annual aeration is beneficial for most lawns in Ontario. The University of Guelph Turfgrass Institute recommends aeration be done in either Spring or Fall at least once per year.  Lawns growing on heavy clay or subsoils, and lawns exposed to intense use benefit from more than one aeration each year. Most turf grasses respond favorably to aeration and liquid aeration can be done at any time during the growing season.

Both Ontario’s spring and fall seasons are ideal times to aerate cool-season turfgrass such as Kentucky bluegrass and perennial ryegrass. In most cases, spring aeration is performed between March and May. Fall aeration is done in late summer and early fall, usually between mid-August and late November. Aeration before or at the time of late-season fertilization enhances root growth responses and improves spring green-up and growth.

Although aeration is beneficial for lawns, it also can open up spaces for weeds such as crabgrass and annual bluegrass to invade the lawn. It is best to aerate and seed before you apply pre-emergent seed inhibitors like Corn Gluten.  If you wish to seed and utilize corn gluten, you should wait until the fall for aeration and seeding once any crabgrass has passed its chance to germinate. Regular Liquid Aeration and Slow Release Granular fertilizer helps the lawn compete against weeds. Water the lawn after aeration, particularly in areas where drought and high temperatures are common.

What Can you Expect After Lawn Aeration?

If you are receiving Liquid Aeration , We only ask that you water as soon as possible.  You will see a slight green up within days because their is some nitrogen and other nutrients that promote greening of plants, but otherwise the results take time to build in the soil.

If you are receiving core aeration, Immediately after the service, your lawn will be dotted with small plugs pulled from the soil. Within a week or two, these plugs of thatch and soil break apart and disappear into the lawn.  Many customers dont like the cores; another reason to choose Liquid Aeration.

About 7 to 10 days after aeration, the aerification holes will be filled with white, actively growing roots. These roots are a sign that the turfgrass is responding to the additional oxygen, moisture, and nutrients in the soil from the aeration process.

On compacted soils and on lawns with slopes, you should see a slight difference in water puddling and runoff after irrigation or rainfall. After aeration, your lawn should be able to go longer between watering’s, without showing signs of wilt. With repeat aeration’s over time, your lawn will show enhanced heat and drought stress tolerance.

Don’t expect miracles from a single aeration of either type. particularly on lawns growing on extremely poor soils. Most lawns in Ontario benefit from annual aeration and is offered exclusively as part of LawnSavers Protector Package. Lawns that receive this care will be healthier, more vigorous, easier to maintain, and have fewer pest problems than lawns that are neglected.

How Much Does It Cost to Aerate Your Lawn In Ontario?


  • The Liquid process is a spray that is watered into the soil to activate its many beneficial properties..  The mechanical process utilizes small tines that remove thousands of cores form your entire lawn.

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  • Coping with Covid Update: (updated 06/01/20)

    Hi Everyone, 

    I’m happy to share some good news during these crazy times. LawnSavers is servicing lawns in all areas as lawn care and pest control services that provide for lawn health are officially on the Provincial list of essential services due to the fact we can provide this service safely and with no personal contact!

    We do not expect any delay in our regular timing of applications (except from the brief wintry weather in May).  We put together an easy to read lawn care service timeline that you can use to know when to expect us for each scheduled service in your package. 

    I want to reassure you that in every decision we make around COVID-19, our number one priority remains the health and safety of our employees and customers.  Safety and honesty are our two most important core values.  We will continue to follow strict safety guidelines that ensure “zero touch”.  We will not let our guard down on exercising our safety protocols!

    Our office is open but with less staff in order to maintain safety protocols like social distancing.   Please note our phones are experiencing a high volume of calls and we know how much everyone hates being left on hold, so please leave us a message or email us at  and we will get back to you in less than 24 hours.
    Please be patient with us, we will get back to you as fast as possible.
    You can also sign up for services on our website by clicking here.

    Thank you all for your understanding and patience during these challenging times. Our team works hard, so if you are met with our exceptional service from our technicians or office team members- please give them a thumbs up to make them smile or let me know through a quick email to

    We thank you for supporting our local, family-owned business of 30 years.
     genuinely appreciate each and every one of you and promise that we will do our part to ensure our mutual safety and be on your lawn as soon as possible.  

    Thank you in advance,
    Kyle Tobin
    Chief Environmental Officer