
New sprinkler system installation
We map your yard zone by zone, lay the lines cleanly and leave the lawn tidy — then walk you through the controller before we go.
Get a free estimate Get an installation estimate
Thornhill sits across the Vaughan–Markham line, with established lots off Yonge and Bathurst and newer streets near Centre Street. We repair, upgrade and install lawn sprinklers here, and service systems from every common brand.
Service area
Many Thornhill homes have mature trees, interlock driveways and garden beds that have grown since the original system went in. Heads that once reached the lawn now spray hedges or pavement, so moving heads and fitting MP Rotator nozzles often restores even coverage without a full replacement.
Because Thornhill is split between two cities, the watering rules depend on your address: the Vaughan side follows Vaughan's schedule and the Markham side follows Markham's. We program the controller for the rules that apply to your street.
Thornhill gardens change over the years, and heads that once covered the lawn can end up blocked by shrubs or spraying interlock. We test each zone, find leaks and stuck valves, and adjust or replace heads where needed. Every repair is explained and priced before work starts.
Sprinkler repair guideNew systems in Thornhill are planned around mature trees, beds and the water pressure at your supply. Lawns get matched-precipitation heads and beds usually get drip, each on its own zone. You can see a preliminary price with our cost calculator before the free on-site estimate.
Sprinkler installation guideThornhill lawn and garden zones are cleared one by one with compressed air before the first hard freeze. We shut off the irrigation supply, check the valves and backflow preventer, and set the controller for winter. Fall visits typically run from mid-October to mid-November.
Sprinkler winterization guideAlso available in Thornhill: seasonal irrigation maintenance, drip irrigation for garden beds and sprinkler system upgrades.
What we do
From a brand-new system to a single stuck valve — one crew handles the install, the seasonal service and the repairs in between.

We map your yard zone by zone, lay the lines cleanly and leave the lawn tidy — then walk you through the controller before we go.
Get a free estimate Get an installation estimate
Sprinkler repairBroken heads, leaks, dead zones, wiring and valve faults — diagnosed and fixed.Same-day available
Spring startupSystem turned on, pressure set and every zone tested before the heat arrives.April – May · from $70 (up to 6 zones)
Fall winterizationFull compressed-air blowout so nothing freezes and splits over the winter.October – November · from $80 (up to 6 zones)
Smart controllersProgram your watering from your phone and skip cycles when rain is coming.Wi-Fi · rain delayDrip irrigationLow-flow drip lines that water roots directly instead of soaking the pavement.Gardens & bedsMaintenance plansOne plan that covers opening, mid-season checks and the fall blowout.Spring · summer · fallSystem upgradesMake an older or builder-installed system work better: add zones, swap worn heads for efficient nozzles, add a rain sensor or smart controller.OLDER & BUILDER SYSTEMSFor homeowners
These are the problems homeowners across Toronto and the GTA call us about. Tap the one that looks like yours and we'll take it from there.
Usually a clogged or misaligned head, or low pressure in one zone.
Often a faulty valve, solenoid or a wiring problem.
A sign of a leak in the line or a cracked head.
We replace them with matching Hunter, Rain Bird or Toro heads.
A smart controller skips watering when it rains.
We design and install a zoned system for your front and back yard.
Not sure what's wrong?
Text a photo or short video to (437) 860-8226 and we'll tell you what it looks like.
FAQ
Still unsure about something? Call or text and we'll answer it straight.
It depends on which side of the city line you are on. Thornhill addresses west of Yonge are in Vaughan and those east of Yonge are in Markham. Check your city's current outdoor watering page, and we can set the controller to match.
Free estimate
Send a few details and we'll get back to you the same day with next steps and a time for a free on-site visit.