How much does weed control cost in London?

Pricing for weed control in London, Ontario depends on lot size and service frequency. With London's typical clay loam soil, services like core aeration are particularly beneficial and may affect overall program costs. As a city of 422K residents, London has full coverage from our local crews. The growing season in London runs from mid-April to late October — approximately 26 weeks of active service. Call (888) 663-2244 for a free quote tailored to your property.

How often should I schedule weed control in London?

In London, with average summer temperatures of 26°C and clay loam soil, weekly mowing is recommended from May through July when growth peaks. During shoulder months, every 10–14 days is sufficient. In Ontario, all our treatments comply with cosmetic pesticide regulations — we use certified organic alternatives for weed and pest control. The clay loam soil in London tends to compact, making annual aeration especially important.

Do you offer seasonal packages in London?

Yes, our seasonal packages in London cover the mid-April to late October growing season — approximately 26 weeks of regular service. Packages bundle mowing, fertilization, aeration, and seasonal cleanups at a discounted rate. Fixed monthly billing is spread across 7 months for predictable budgeting. With dedicated crews serving London and its 422K residents, we guarantee on-schedule service. Call (888) 663-2244 for a package quote.

London, Ontario

Weed Control in London

Professional weed control services in London, Ontario. Licensed and insured crews.

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Weed Control in London, Ontario

London, situated in southwestern Ontario with a population of approximately 422,000, is known as the "Forest City" for its abundant tree canopy — a feature that directly impacts lawn care through shade management and heavy fall leaf volumes. Located in zone 6a, London receives above-average annual precipitation of approximately 1,011 mm, which supports lush grass growth but also increases the risk of fungal diseases like dollar spot and red thread in humid summer conditions. Western University's campus, with its gothic architecture and expansive grounds, is one of the city's most visible green spaces.

Local Lawn Care Conditions

London Health Sciences Centre, Fanshawe College, and the London Life Insurance company campus are other significant institutional and commercial grounds. The Thames River winds through the city centre, and properties along the river valley face periodic flooding concerns that affect lawn health and maintenance access. London's residential neighbourhoods include the established homes of Old North, Byron, and Wortley Village, as well as newer subdivisions in the city's expanding southeast and northwest corridors.

Our Service in This Area

Mow.ca's London crews are experienced with the heavy shade conditions created by the city's mature silver maple and oak canopy, recommending Fine Fescue blends for deeply shaded areas where Kentucky Bluegrass struggles.

Our Weed Control Service

Weeds compete with your grass for sunlight, water, and nutrients — and left unchecked, they can overtake even a healthy lawn within a single growing season. Our targeted weed control programs eliminate dandelions, clover, crabgrass, creeping Charlie, plantain, and other broadleaf and grassy weeds without damaging your existing turf. At Mow.ca, we use a science-based integrated pest management (IPM) approach that combines cultural practices with selective treatment to create conditions where your grass naturally outcompetes weeds.

How It Works

The foundation of effective weed control is a healthy lawn. Dense turf shades the soil surface and prevents weed seeds from germinating. That is why our weed control programs always work in conjunction with proper mowing height (maintaining 2.5 to 3.5 inches), regular fertilization, and timely overseeding of bare or thin patches. These cultural practices alone can reduce weed pressure by 50 to 70 percent compared to neglected lawns.

For active weed infestations, we use a combination of pre-emergent and post-emergent treatments timed to weed germination cycles in your region. Pre-emergent treatments — applied in early spring before soil temperatures reach 12°C — create a barrier that prevents weed seeds (especially crabgrass) from establishing. Post-emergent treatments target actively growing weeds, delivering the active ingredient directly to broadleaf plants while leaving grass unharmed.

Why Choose This Service

In provinces with cosmetic pesticide bans — Ontario, Quebec, Nova Scotia, Prince Edward Island, and New Brunswick — we use provincially approved alternatives. Our primary post-emergent tool is Fiesta (iron chelate / FeHEDTA), an iron-based herbicide that causes oxidative stress in broadleaf weeds, turning them black and killing them within 48 to 72 hours. For pre-emergent control, we apply corn gluten meal at a rate of 20 pounds per 1,000 square feet in early spring, which inhibits root formation in germinating weed seeds while providing a slow-release nitrogen boost to existing turf.

In provinces without cosmetic pesticide bans — Alberta, Saskatchewan, Manitoba, and British Columbia (where no provincial ban exists, though some municipalities have local bylaws) — we have access to a broader range of selective herbicides including 2,4-D, MCPP, and dicamba combinations. These products are highly effective against broadleaf weeds and are applied in accordance with all PMRA regulations and label directions.

Pricing & Scheduling

Results from post-emergent treatments are typically visible within 7 to 14 days. Most weed control programs include two to three follow-up visits per season to address new weed emergence and spot-treat problem areas. Weed control pricing ranges from $60 to $140 per treatment for a standard residential lot, depending on weed density and property size.