We appreciate all you do to help save the community's water supply. Thornton wants to reward water customers for taking the steps to save even more water. Check out the programs below and cash in on the water savings.

Residential Washer Rebates

Receive a $100 rebate when you purchase and install a new qualifying clothes washer in the Thornton water service area. Limit one rebate per household per 10 years. Washer rebates are for residential customers in Thornton's water service area.

PLEASE READ: In March 2015 new federal efficiency standards for clothes washers became mandatory, increasing the required energy efficiency of all residential clothes washers.  On the same date, new ENERGY STAR, ENERGY STAR Most Efficient, and CEE specifications became effective. Thornton's washer rebate program uses the CEE list for qualifying washers, be sure to check the current CEE list when you purchase a new washer. 

Consortium for Energy Efficiency (CEE) Qualifying Washers Residential Clothes Washer Rebate Information and Rules Apply Online for a Rebate Residential Water Efficiency Rebate Form Residential Water Efficiency Rebate Form in Spanish

Before you purchase, print out the Consortium for Energy Efficiency (CEE) list of qualifying washers and bring it with you when shopping for a new water efficient clothes washer. The Manufacturer and Model Number of the new washing machine must be on this list to qualify for a rebate.

Residential Toilet Rebates

Receive a $75 rebate for replacing an older toilet with a new EPA Water Sense labeled toilet. See the list of EPA WaterSense qualifying toilets at EPA Water Sense. Standard 1.6 gallon per flush toilets do not qualify. Rebates are for residential customers in the Thornton water service area. New in 2016 - there is no longer a pre-1994 build date requirement to qualify for this rebate.

Qualifying EPA WaterSense Toilets Residential Toilet Rebate Rules and Information Apply Online for a Rebate Residential Water Efficiency Rebate Form Residential Water Efficiency Rebate Form in Spanish

Commercial Toilet Rebates

Commercial and Multi-Family buildings constructed before 1994 are eligible for toilet and urinal rebates. Rebates of $75 will be applied to the business or apartment building water account for each EPA WaterSense labeled fixture that replaces a high volume flush fixture. The program is offered on a first-come, first-served basis and is limited to 100 fixtures per property per year. Property owners or managers can call 720-977-6600 or e-mail to obtain required project pre-approval if planning to replace more than 10 toilets. If you are replacing less than 10 pre-1994 water wasting toilets, pre-approval is not required.

Click here to see how much water a local apartment property saved when they replaced 80 old water wasting toilets.

Commercial Toilet Rebate Information and Rules Commercial Water Efficiency Rebate Form

Irrigation Controller Rebates

Rebates are for residential, commercial and multi-family water customers in the Thornton water service area. A residential rebate for 100% of the cost of the irrigation controller, taxes and installation costs excluded, up to $400 will be credited to the customer’s account for the installation of a new, qualifying WaterSense certified irrigation controller. For commercial and landscape customers the rebate is for $50 per active irrigation station. All rebates are subject to the availability of funds.

EPA WaterSense Qualifying Irrigation Controllers Residential Irrigation Controller Rebate Information and Rules Apply Online for a Rebate Residential Water Efficiency Rebate Form Residential Water Efficiency Rebate Form in Spanish Commercial Irrigation Controller Rebate Information and Rules Commercial Water Efficiency Rebate Form

Rain Sensor Rebates

Thornton is offering a $25 rebate for rain sensor devices purchased and installed into automatic sprinkler systems. Rebates are for residential and commercial water customers in the Thornton water service area.

Residential Rain Sensor Rebate Information and Rules Apply Online for a Rebate Residential Water Efficiency Rebate Form Commercial Rain Sensor Rebate Information and Rules Commercial Water Efficiency Rebate Form

Thornton Cares Water-Assistance Toilet Upgrades

This program was designed for water customers in need of a toilet upgrade, who do not have the resources to purchase a toilet and have it installed, as required by Thornton's rebate program. To qualify for this program you must be a 2016/2017 Thornton CARES water assistance participant receiving assistance on your water bill. You must sign-up or have already received a FREE Home Water Use Consultation through the Center for ReSource Conservation. If you qualify, a Center for ReSource Conservation technician will come to your home to conduct a Home Water Use Consultation and install up to 2 Niagara Stealth toilets, or other comparable model. Owners of the home will be asked to sign a liability waiver before toilet installations can proceed. This is for 10" or larger rough-in and flange set-up. Water customers can call 303-999-3824 to see if they qualify and sign-up. For more information visit

Free Services

Home Water Use Consultations

Homeowners in the Thornton water service area can take advantage of a FREE home water use consultation. The consultation will consist of:

  • 1. An explanation of water bills and water usage,
  • 2. Water fixture inventory and assessment,
  • 3. Shower head and faucet aerator retrofits upon request, and
  • 4. Recommendations for saving water indoors.

Appointments will be scheduled first come, first served and are limited so call our partner, the Center for ReSource Conservation today at 303-999-3824 or sign up online

Business Water Use Assessments

Commercial water customers can sign up for a Free Water Use Assessment to increase water use efficiency. The goal of the assessment is to help businesses quickly and efficiently figure out the best way to use less water - saving money and helping Thornton become a more sustainable community. The assessment includes:

  • 1. A thorough inspection of all water fixtures to identify leaks and inefficiencies.
  • 2. Personalized report of business’s water use including ROI for all recommended upgrades.
  • 3. FREE high-efficiency pre-rinse spray valves and low-flow faucet aerators (if desired).
  • 4. Certificate of Participation to show customers your work to conserve Colorado’s valuable water resources.

Don't miss out on this water saving opportunity! To participate, call 720-977-6600 or email us

Sprinkler Consultations

The City works together with the Center for ReSource Conservation to provide free sprinkler consultations to City of Thornton commercial and residential water customers. A consultation is a series of tests on an underground lawn irrigation system that determines how efficient a system is. Six reasons you should sign up:

  • 1. Save money on your water bill.
  • 2. Improve the appearance of your landscape.
  • 3. Increase your water efficiency.
  • 4. Maximize the life-span and effectiveness of your sprinkling system.
  • 5. Receive a personalized watering schedule.
  • 6. Because it's free

Sprinkler consultations will be take place June through August, and will be scheduled in the order requests are received. There is limited amount of appointments available so don't wait, sign up today! Click on the following links to sign up for this free service residential customers, commercial or HOA customers or call 303-999-3824.

Shower Head Exchanges

Bring us your old, water-wasting shower head, and we'll give you a new water-wise shower head for FREE! Shower heads installed prior to 1994 qualify for replacement. The shower heads provided by the City are rated at 2.0 gallons per minute.

Bring your shower head along with your driver's license or water bill to 12450 Washington Street, Thornton, CO 80241. There is a limit of 2 showerheads per household please.

Commercial Kitchen Spray Valve Upgrades

Save water in commercial kitchens with a quick, easy, and effective pre-rinse spray valve (PRSV) upgrade. This 15-minute swapping service is offered at no cost to businesses and creates instant, measurable water and energy savings. Replacing a standard PRSV with a high-efficiency model can save a single business over 20,000 gallons of water annually.

We’ll schedule a short, 15-minute appointment to install your new, efficient PRSV. Thornton commercial water customers can call the Center for ReSource Conservation at 303-999-3824 or email and ask for a Pre-Rinse Spray Valve Upgrade. Click here for more info.

Conservation Kits

The Water Resources Division will provide a free home water conservation audit kit while supplies last. The kit contains toilet dye tablets, a flow measurement bag, 2.0 gpm shower head and other water saving tools.

To request a kit, Thornton water customers can call 720-977-6600, email or stop by:

City of Thornton Infrastructure Maintenance Center
12450 Washington Street
Thornton, CO 80241
Monday - Friday, 8 a.m. - 5 p.m.

Thornton Cares Water Bill Assistance

The Thornton Water Assistance Program is intended to provide short-term, payment assistance to water utility customers meeting qualifying criteria. For more information about criteria and funding available visit or call Utility Billing at 303-538-7370 for more information. If you qualify for water assistance, you may also qualify for up to 2 free WaterSense toilet upgrades with installation. See Thornton Cares Water Assistance Toilet Upgrades under the rebate section for more info.

Landscaping Programs

Garden In A Box

Garden In A Box, a selection of professionally designed, perennial gardens that use Xeric (low-water) plants, offers residents a simple approach to an eye-catching yard. These do it yourself garden kits feature 14-32 locally grown starter plants, 1-4 professionally designed plant by number maps, and a comprehensive Plant and Care Guide that makes you an instant planting pro. Whether you are looking to redesign a portion of your yard, attract bees and butterflies, or simply increase your curb appeal, Garden In A Box makes it easy! Gardens are offered by the city of Thornton in partnership with the Center for ReSource Conservation in support of our community’s commitment to water conservation. As a city of Thornton customer you are eligible for a $25 discount while supplies last. Order your garden today!

Water-Wise Garden Events

Soak up some gardening knowledge at a free water-wise garden tour or open house. Sign up today!


Thornton Water and the Center for Resource Conservation are working together to help water customers learn the dirt on converting at least 200 square feet of their lawns. Click here for more details.