Sprinkler System Winterization Services in Treasure Valley
Professional sprinkler blowout service to protect your irrigation system from winter freeze damage
About Our Sprinkler System Winterization Service
Idaho's harsh winter freezes are devastating to sprinkler systems, with temperatures regularly dropping into single digits and below zero throughout the Treasure Valley. Water left in irrigation pipes, valves, and sprinkler heads expands when frozen, causing catastrophic damage that can cost thousands to repair come spring. Our professional sprinkler winterization service - commonly called a "blowout" - uses commercial-grade, high-volume compressed air equipment to completely evacuate every drop of water from your entire irrigation system before the first hard freeze arrives. This essential annual service is the single best investment you can make to protect your irrigation system investment, typically preventing $500-3000+ in freeze damage repairs for a service that costs just $75-125. Idaho's freeze-thaw cycles are particularly destructive - daytime temperatures in late fall and early spring can climb above freezing while nights drop well below, creating repeated expansion and contraction that can crack even properly winterized components if any water remains. Our technicians use professional compressors delivering 80-120 CFM (cubic feet per minute) of airflow - far more volume than homeowner equipment can provide - ensuring complete water removal from mainlines, lateral lines, valve boxes, sprinkler heads, and backflow preventers. We've winterized thousands of systems throughout Kuna, Boise, Meridian, Nampa, Caldwell, and Eagle, and understand the specific challenges Idaho weather presents. Timing is critical: winterize too early (while you still need to water) and your lawn suffers; wait too long and an unexpected hard freeze destroys your system overnight. October is the ideal month in Idaho, after watering season ends but before temperatures plummet. Our schedule fills completely every October - homeowners who wait until late October often face 2-3 week wait times, risking freeze damage. We recommend scheduling in September for guaranteed October service. The winterization process is quick - typically 20-30 minutes for residential systems - but requires specialized knowledge and equipment. Our technicians know the proper air pressure for each zone (typically 40-80 PSI depending on system type), understand backflow preventer drainage requirements, and can identify potential problems before they become expensive spring repairs. Many manufacturer warranties require professional winterization - DIY attempts may void coverage. Proper winterization isn't just about protecting pipes - it's about protecting backflow preventers (which alone can cost $300-600 to replace), valve assemblies, controller wiring, and the hundreds or thousands you've invested in a quality irrigation system. The peace of mind knowing your system is properly protected through Idaho's brutal winters is invaluable.
Benefits
- Prevents costly freeze damage to pipes and components
- Protects sprinkler heads, valves, and backflow devices
- Extends the life of your irrigation system by years
- Maintains manufacturer warranties (many require winterization)
- Professional-grade compressor ensures complete water removal
- Fast service - typically 20-30 minutes per system
- Peace of mind all winter long knowing system is protected
- Much less expensive than $500-3000 spring repairs
- Protects expensive backflow preventers ($300-600 value)
- Identifies potential problems before they become costly
- Proper air pressure prevents component damage
- Priority scheduling for spring startup service
Our Process
Our Process
- System Shutdown: We turn off the water supply to your irrigation system at the main shutoff valve and drain the backflow preventer.
- Compressor Connection: Our high-volume compressor (80-120 CFM) is connected to your system through a dedicated blowout port or mainline connection.
- Zone-by-Zone Blowout: Each irrigation zone is activated individually. Compressed air forces all water out through sprinkler heads until only dry air flows.
- Component Check: As we blow out each zone, we verify all heads are functioning and note any needed repairs for spring service.
- Final System Prep: Controller is shut off or set to rain mode. All manual drain valves are opened. Backflow device is left open to prevent freeze damage.
- Service Documentation: We provide a checklist of work completed and any concerns noted for spring service.
Pricing
Sprinkler winterization is a base service that covers most residential systems, with small add-ons for larger zone counts. Typical estimates land around $120-$240 for many homes, depending on complexity. Additional zones can add roughly $10-$20 per zone to the estimate.
Seasonality
October only - extremely high demand period. Book in September for guaranteed service before freeze.
Frequently Asked Questions
When should I winterize my sprinkler system in Idaho?
October is the ideal month for sprinkler winterization in Idaho. You want to complete the blowout after you're done watering for the season but before the first hard freeze (typically late October to early November). We get extremely busy in October, so schedule early.
What happens if I don't winterize my sprinklers?
Water left in pipes can freeze and expand, causing pipes to crack, valves to break, and sprinkler heads to shatter. Repair costs can easily run $500-2000+ in the spring. Winterization at $75-125 is cheap insurance against expensive damage.
Can I winterize the system myself?
While possible, we don't recommend it. Improper air pressure can damage components, and inadequate volume may leave water in the system. Professional equipment (80+ CFM compressor) ensures complete water removal that small residential compressors can't achieve.
Do you drain the backflow preventer?
Yes! We drain and open backflow preventers as part of every winterization. This is critical - backflow devices are expensive (many cost $200-400) and must be drained to prevent freeze damage.
What if I need repairs found during blowout?
We note all issues discovered during winterization and provide recommendations. Minor repairs like sprinkler head replacement can often be done during the blowout. Major repairs are typically scheduled for spring when parts can be properly tested.
When do I turn the system back on in spring?
Wait until nighttime temperatures consistently stay above freezing (typically late March to April in Idaho). We offer spring startup services to check for winter damage, adjust sprinkler heads, and optimize your system for the new season.
How much does sprinkler winterization cost in Kuna and Boise?
Residential sprinkler winterization typically costs $75-125 depending on system size. Small systems (3-5 zones): $75-90. Medium systems (6-8 zones): $90-110. Large systems (9+ zones): $110-125. Additional zones beyond 12 are $10-15 each. This cost is minimal compared to $500-3000+ in potential freeze damage repairs.
Do you winterize drip irrigation systems?
Yes! Drip systems also need winterization, though they're less susceptible to freeze damage than spray systems. We blow out drip zones and ensure all water is evacuated from mainlines, filters, and pressure regulators. Some drip components may need to be brought indoors if they're above ground.
What if I forget to winterize and it freezes?
Contact us immediately for emergency service. Sometimes a light freeze won't cause damage, but hard freezes (below 25°F) for extended periods usually crack pipes and break components. We can assess damage and provide repair estimates. Unfortunately, freeze damage repairs are typically expensive - prevention through timely winterization is always cheaper.
Can you winterize if my system has leaks or problems?
Yes, we can still winterize systems with minor issues. However, we'll note all problems and recommend repairs for spring. For major leaks or valve failures, we may recommend emergency repairs before winterization to prevent water waste and ensure complete blowout is possible.
Do I need to be home during winterization?
No, you don't need to be home as long as we have access to your system components. We need access to the backflow preventer (often in basement or garage) and outdoor valve boxes. Most winterizations take just 20-30 minutes and we text you when complete.
Will winterization damage my landscaping or lawn?
No, winterization causes no damage. We walk your property to locate all sprinkler zones and are careful around landscaping. The blowout process simply runs your system with air instead of water - sprinkler heads pop up normally and no digging or disruption occurs.
Service Areas
We provide sprinkler system winterization services throughout the Treasure Valley:
- Sprinkler System Winterization in Kuna
- Sprinkler System Winterization in Boise
- Sprinkler System Winterization in Meridian
- Sprinkler System Winterization in Eagle
- Sprinkler System Winterization in Star
- Sprinkler System Winterization in Middleton
Related Services
Contact Us
Phone: (208) 352-2011
Email: hello@lawncarekuna.com
Address: 2283 N Coopers Hawk Ave, Kuna, Idaho 83634
Service Areas: Kuna, Boise, Meridian, Eagle, Star, Middleton