Sprinkler Repair in Flower Mound and Denton County
Flower Mound gives a lawn two watering days a week and nothing between 10am and 6pm, so a clipped head or a stuck valve shows as a brown stripe by July. Repairs, backflow tests and controller programming for Flower Mound and 10 Denton County towns, each one on its own watering rules.
Flower Mound, Lewisville, Denton, Highland Village and the rest of Denton County. Monday to Saturday, 7am to 7pm.
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What gets fixed in Flower Mound and the rest of Denton County
Sprinkler Repair
Broken heads, dry spots, zones that won't run or won't stop. Fixed in one visit.
Backflow Testing
Annual backflow test by a certified tester. We file the report with your city for you.
Valve & Controller Repair
Zone won't start or won't stop? Dead controller? We trace the fault and fix it.
Leak Detection
Water bill up, soggy spots, water running when the system is off? We find the leak.
Tune-Up & Start-Up
Every zone checked, heads adjusted, schedule set for the season. Done in one visit.
Drip Irrigation
Convert beds and gardens to drip, or fix the drip you already have.
New Installation
New systems and additions designed for your lot, installed to code, permitted when required.
Built around Flower Mound's two watering days and the November freeze
Flower Mound gives a sprinkler system two days a week. Even addresses run Tuesday and Friday, odd addresses Wednesday and Saturday, and nothing runs between 10am and 6pm at any time of year. Two days is not much room. A head the mower clipped, a zone that runs three minutes short, or a controller still on last summer's program shows up as a brown stripe by July, because there is no third day to cover for it. Every controller we touch leaves set to the city watering schedule: twice a week by street address in Flower Mound, Lewisville, Denton and most Denton County cities, never between 10am and 6pm (year-round in Flower Mound, summers elsewhere).
What the freeze does to a backflow preventer
Full blow-out winterization is rarely necessary in North Texas, but the average first freeze arrives around November 22 and backflow preventers should be insulated or drained before it. Flower Mound and Upper Trinity suggest turning systems off around Halloween and leaving them off through February. We can do that on a fall tune-up visit. The March backflow call is usually a split body or a cracked test cock on an assembly that sat exposed through a hard night in January.
Sand under Flower Mound, clay to the east
Flower Mound sits on the sandy Eastern Cross Timbers, where water drains fast and a zone needs a shorter, more frequent cycle to keep turf alive in August. The Blackland clay along the east side of Denton County does the opposite: the same cycle runs off into the street before it soaks in. Run times are set for the dirt the lot is on. Post oaks, blackjack oaks and cedar elms of the Eastern Cross Timbers cover Flower Mound, Highland Village and Argyle, and their roots go straight into leaking lateral joints, which is why a small drip under a tree becomes a geyser within a season.
When to book
Mid to late March, after the average last freeze around March 12 and when Flower Mound suggests turning systems back on, is ideal in Denton County. A second check in late June when run times go up catches the heads the mower found. Fall is for covering the backflow and shutting the system down, not for repairs that can wait until the turf is growing again.
What a visit costs
A diagnostic is $75, folded into the repair when there is one. Most repairs land at $120 to $350. A backflow test is $75 to $95 plus the city's filing fee where the city charges one, and a full tune-up runs $95 to $150.
Flower Mound is home base, and Lewisville, Highland Village, Denton and the rest of Denton County are the same drive. Call (469) 949-2629 with your street address and you will know your watering days before you hang up.
Areas we serve around Flower Mound
Watering days, backflow filing and rebates change at every city line in Denton County. Pick your town.
Frequently asked questions
What days can I run my sprinklers in Flower Mound?
Two days a week by street address, and never from an automatic system between 10am and 6pm, all year. Cross a city line and the rule changes. Lewisville, Corinth, Highland Village and the other Upper Trinity cities also run two days, with the daytime ban in the summer months. Denton sets its own days and bans daytime watering June through September. Little Elm buys from a different district and ties your two days to trash day, dropping to one day a week in winter. Tell us which city bills your water and the controller leaves set for it.
What does a sprinkler repair cost in Flower Mound?
Most repairs land in $120 to $350, and that covers the parts the truck carries: heads, nozzles, solenoids, wire splices. A valve rebuild starts at $150. Past that, a smart controller installed is $250 to $450, a leak located and fixed under the lawn is $200 to $600, and a drip zone for the beds is $350. A mainline under the driveway sits at the high end and gets a written price before the saw comes out.
Does Flower Mound require a backflow test every year?
Flower Mound requires the test when the system goes in, on the Town's own form, uploaded to the permit. The annual test on an existing home system is a Lewisville and The Colony rule, filed through BSI Online by a tester registered with the city, and Aubrey wants an annual report at City Hall with a late fee if it is overdue. The test is $75 to $95 plus the city's filing fee where there is one. Lewisville's fee goes from $25 to $40 on November 1, 2026.
Do I need a permit for a new sprinkler system in Flower Mound?
Yes. The Town charges $350, wants plans signed and sealed by a licensed irrigator registered with Flower Mound, the rain and freeze sensor location on the drawing, and the backflow test report uploaded before the final inspection. Denton wants a backflow report as an inspection step and does not allow double check assemblies on irrigation. Aubrey charges $50 for the permit and $100 for the inspection. The permit is part of an install here, not a separate errand for you.
Is there a rebate for a smart controller in Denton County?
Depends on who sends your water bill. Denton Water Utilities pays up to $300 on a WaterSense controller and $100 on a sprinkler tune-up. Lewisville credits up to $375 a year for conservation upgrades, smart controllers and an irrigation inspection by a city-registered irrigator among them. Flower Mound and Upper Trinity do not list one. The controller has to be on the WaterSense list and the account has to be with that utility, so check before buying.
If a zone is stuck on, close the valve at the backflow preventer first, then call (469) 949-2629. Everything else gets a date on the calendar when you call.