Heritage Irrigation at a glance
- Family-owned and operating in Virginia since 2001, with 5,000+ customers served
- Installs Hunter, Rain Bird, K-Rain, and Netafim components
- Smart Wi-Fi controllers with weather-adaptive scheduling and leak detection
- Systems designed for Richmond-area clay soils using cycle-and-soak programming
- 24-hour emergency line at (804) 357-1256
What blowing out a sprinkler system actually means
A blowout forces compressed air through the irrigation piping, zone by zone, until the water that is sitting in the lines is pushed out through the heads.
The goal is not to make the heads spray. It is to clear the places gravity will not drain: low points in lateral runs, the last few feet before a dead-end head, water pooled at grade transitions, and the body of the backflow preventer, which is sealed between two closed shutoff valves and cannot drain at all.
Getting to those places takes sustained volume, not peak pressure. That distinction is where most attempts to blow out a sprinkler system in the Richmond area go wrong.
CFM is the number that matters, not PSI
Homeowners shop compressors by pressure. Irrigation zones are cleared by airflow.
A zone of rotors needs continuous volume to keep moving a column of water down a lateral and out the far head. A small portable compressor can hit the pressure rating and still cycle constantly, delivering short bursts that push water back and forth without ever expelling it. The heads spray, the homeowner concludes the zone is clear, and there is still water in the pipe in December.
Over-pressurising is the other failure. Too much pressure through narrow or aged lateral pipe damages the system you were protecting - and it is why air pressure gets calibrated to the pipe actually in the ground rather than set once and forgotten.
Richmond systems span four-zone city lots to sixteen-zone Henrico County properties with two-inch mainlines. Heritage Irrigation maintains commercial compressor capacity across that whole range, which is the practical reason a professional Richmond blowout clears low points that a rented unit does not.
The Richmond-specific risk profile
Richmond sits in the central Virginia Piedmont, and its winters are real winters: overnight lows in the teens and low 20s, with Arctic air arriving fast down the Blue Ridge.
Three local factors stack on top of that. The James River corridor and the topographic swing between Richmond's river hills and flatter suburban terrain leave more low points per system than a flat lot would have. The soil mix across the metro - clay, loam, and urban fill - varies within single properties. And system age ranges from decades-old installs in established neighborhoods to new builds in the Henrico and Chesterfield buildout.
The failures follow: cracked PVC in the low points and under hardscape, cracked backflow bodies, split valve casings, heaved heads, and stressed wiring in the valve boxes. Heritage's Richmond repair crews see the same list every spring, and it is always the un-winterized systems.
The professional sequence
- System review - zone map, controller access, main supply shutoff, and known issues. Older Richmond systems get extra attention on the backflow assembly and any previously repaired pipe.
- Equipment setup - controller to manual, supply valve positioned, compressor connected.
- Zone-by-zone purge - each zone individually, multiple passes, until low points and lateral ends run dry.
- Backflow shutdown and drain - shutoffs closed, test cocks opened, body verified empty. Certification testing can be done at the same visit.
- Controller deactivation - rain delay or off, seasonal shutoff confirmed.
- Documentation - zones purged, backflow condition, and any component issues, written down.
Published pricing: $79.95 winterization, $79.95 spring start-up, $69.95 backflow testing, with annual plans from $149.95 to $479.95 bundling them.
Same crews, other services and other cities
The Richmond team also handles general sprinkler service, new system installation, and yard drainage. Evening and after-dark work often turns into a second conversation entirely - Heritage's landscape light installation in Richmond runs off the same crew schedule, and fall is when homeowners notice how early it gets dark.
Outside the metro: Midlothian and western Chesterfield, Fredericksburg, Stafford and Spotsylvania, and Williamsburg, James City and York County.