Water Conservation Rebates
The City’s rebate program aims to encourage efficient water use while helping customers save water and money.
Eligibility Requirement: To qualify for any of the rebates below, you must receive a water utility bill directly from the City. This is because a small portion of the utility bill helps fund the conservation program.
The City does not offer energy conservation rebates since we are not an energy provider. Check with Oncor or Texas Gas Service for rebates on energy-efficient appliances, such as HVAC units, water heaters, and solar panels.
*NEW PROGRAM* Rooted in Texas - Native Tree Rebate
Why Texas Native trees?  Planting a native tree offers many benefits beyond being the tree best suited to our climate—which it is!
Natives are also the foundation of the local food web, provide food and shelter for local wildlife, have deep root systems that reduce water needs and help manage stormwater, and, once established, require little to no special pampering.
Details
- Rebate is for the purchase of 5-gallon or larger, approved Texas native trees (2 maximum) and hardwood mulch.Â
- Pre-approval is required, so please reach out to let us know your interest. waterconservation@roundrocktexas.govÂ
- New tree must be a Texas native appropriate for Williamson County.
- New tree must be purchased after October 1, 2026, and planted between November 1 and March 31.Â
- Rebate amount is 50% of the cost of the new tree and hardwood mulch, up to $500. Up to two trees can be applied for the rebate.
- See the Rooted in Texas application for full details.
Parkway Strip Conversion Rebate
This program is for the removal of live turfgrass located in parkway strips that are watered by an automatic irrigation system.
Water waste is prevalent in these small areas. Upgrading irrigation systems to drip irrigation or removing the irrigation completely will stop water waste by reducing overspray onto streets and sidewalks.
Details
- Parkway strips must have existing grass AND irrigation systems.
- Turf grass must be removed and converted to hardscape or native plants.
- Irrigation systems must be capped or converted to drip irrigation.
- Rebate amount is up to $600 per water account.
- See Parkway Strip Lawn Conservation Rebate. Â
Healthy Lawn
Core aeration and compost help reduce soil compaction, promote deep root growth, and reduce water runoff. Deep, healthy soil means you need less supplemental water.Â
There is no point in watering your yard if the soil can’t absorb the water. Help reduce compaction this summer!
Don’t forget, mulch is FREE to City water customers at our Brush Recycling Center.
Details
- Mechanical Aeration:Â Mechanical (core) aeration creates space for water, air, and plant roots to expand into and helps reduce compacted soil.
- Compost: Adding natural organics adds depth to your yard profile, creating more ways for your yard to absorb water instead of letting it run off.
- Rebate amount is $150 per single-family (residential) yard and $300 per non-residential property.
- See the Healthy Lawn Application for full details.
If work was completed in July or August 2026, use this application for the special rebate amounts offered those months only.
Rainwater Collection Rebate
Rainwater provides more nutrition for plants and trees than treated potable water because rain contains more nitrogen. Collecting rainwater also lessens soil erosion by reducing the amount of water running off your property.
Details
**PROGRAM UPDATE**Â Â Minimum rebate amount is $50. This means if only applying for a rain barrel(s), the storage capacity must be 100 gallons or more.
- Purchased barrels or tanks must be designed specifically to collect and store liquid. Used or self-made barrels (i.e., converted trash cans or drums) are not eligible.
- The rebate is $0.50 per gallon of water storage capacity; the minimum rebate is 100 gallons. (This could be two 50-gallon barrels.)
- Rebate on pad material, pump, and other components for the collection project.
- See the Rainwater Harvesting rebate application for full details.
Smart Irrigation Rebate
Outdoor watering accounts for 60-80% of the City’s total water use in the summer! By making irrigation systems more efficient, we can reduce water use and water waste and improve the health of landscapes.
Residential
The Smart Irrigation Rebate provides rebates for specific efficiency changes to existing irrigation systems. New irrigation systems are not eligible.Â
Rebates available on:
- WaterSense labeled controllers;
- Pressure-regulating sprinkler heads and nozzles;
- Pressure regulation on the mainline;
- Weather sensors;Â
- Converting zone(s) to drip irrigation or capping off an entire zone; and
- Annual inspections by a Licensed Irrigator.
See the Smart Irrigation Rebate for full details.
If work was completed in July or August 2026, use this application for the special rebate amounts offered those months only.
Commercial Properties
The CII Smart Irrigation Rebate is available to all Commercial, Industrial, Institutional, and Multifamily properties with existing irrigation systems. This rebate aims to reduce and prevent water waste from leaks and/or system inefficiencies.
This rebate covers two main issues:Â
- The installation of a flow sensor or master valve on the irrigation mainline. Either can help prevent ongoing water waste.
- A flow sensor can identify leaks or other issues in real time and send alerts to the responsible party.
- A master valve on the irrigation mainline stops water flow when the irrigation system is not actively running on a set schedule.
- The removal or conversion of above-ground irrigation in parking lot islands, parking lot medians, or roadway medians.
- Water is often wasted in small parking lot islands, medians, and along roadway medians due to sprinklers overspraying the small area.
Better Bathroom Rebate
Bathrooms use the most water in the house, accounting for half of indoor water use! Easily upgrade your bathroom with rebates to help cover the cost of WaterSense-labeled toilets, bath faucets, and showerheads.
**PROGRAM UPDATE**Â Only properties built before 1996 are eligible for this rebate program.
Ferguson Enterprises is offering partnered pricing for participants in the Better Bathroom program. Use the Round Rock Water Conservation account (#932490) when purchasing via phone or at their local branch.
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Details
- Rebate is for the purchase and installation of new WaterSense-labeled toilets, showerheads, and bath faucets.
- All property types are eligible.
- Property must have been built before 1996.
- Rebate is 50% of the cost of the fixture and up to $50 per fixture for installation.Â
- See the Better Bathroom Application for full details.
- All non-residential properties, use the Commercial Property Better Bathroom Application
Water Flow Sensor Rebate
Water flow sensing devices record water use in real time to identify potential leaks and alert you to unusual usage. This lets you stop the water flow much faster, saving water and money. Â
Details
- The property must have adequate Wi-Fi service at the water meter for the device to work.
- Eligible flow sensors: Flo by MOEN, Flume2, Phyn Plus, & StreamLabs Control. If you want to install a different sensor, please reach out to confirm it’s eligible.
- Rebate amount is 50% of the cost of the device (not including sales tax or shipping costs) and installation, up to $300.
- See full details on the Flow Sensor Rebate Application.
Water Efficient Clothes Washer Rebate
Clothes washers account for 22% of indoor water use. Replacing older models with highly efficient washers can reduce home water use by 15–40% annually.
Details
- Rebate amount is a flat amount of $150 per qualifying washer.
- Eligible washers are listed on the CEE Qualifying list.Â
- Please note: This rebate is based on water use, not energy. An ENERGYSTAR labeled washer may not qualify, as ENERGYSTAR is rated on energy use, not water use.Â
- See full details on the Clothes Washer Rebate Application.
Soil Test Rebate
Testing your soil before adding fertilizer is the best way to see your soil’s composition and what it may be lacking. This allows you to purchase and apply only what your yard needs.
This precise fertilizer application also protects the water supply from pollution. When additives are added to plants that they do not need, they remain in the soil and tend to wash away with irrigation or rain.
Details
- Approved soil testing labs include the Texas A&M AgriLife Lab, and the Texas Plant and Soil Lab.
- If using the TAMU AgriLife lab, choose the Urban Soil Submittal Form.
- If using the TPSL lab, the Lawn & Garden Plant Natural Soil Test may be best, but any soil test may be chosen.
- Rebate amount is 50% up to $200.
- See Soil Test Application for full details.
If your test was paid for in July or August 2026, use this application for the special amount offered those months only.
Contact Us
For questions or to have an application sent to you, please email waterconservation@roundrocktexas.gov or call 512-671-2872.
