Drought-Proofing Your Home in California: What Contractors Can Do

California has been in a persistent cycle of drought, with periodic relief followed by water restrictions and conservation mandates. Drought-proofing a home is not about eliminating water use - it is about using water more efficiently, reducing dependence on irrigation, and making upgrades that lower bills and satisfy local water district requirements.

Landscaping: The Biggest Water User

Outdoor irrigation accounts for roughly half of residential water use in California - and in hot inland areas like Sacramento and the Inland Empire, it can be considerably more during summer. The most impactful drought-proofing changes are in the yard.

Convert to drought-tolerant landscaping. Replacing water-hungry lawns and plants with California natives, succulents, and Mediterranean plants that thrive in dry conditions is the most effective long-term solution. Many California water districts offer rebates for lawn removal and conversion to drought-tolerant planting. Check with your local water district before starting - rebates can offset a significant portion of the project cost.

Install drip irrigation. Drip systems deliver water directly to plant roots with minimal evaporation - far more efficient than spray irrigation. A licensed landscape contractor or irrigation specialist can design and install a drip system tailored to your plantings.

Add a smart irrigation controller. These systems use weather data and soil sensors to water only when plants actually need it, adjusting automatically for rain and temperature changes. Many water districts offer rebates for approved smart controllers.

Indoor Water Efficiency Upgrades

Low-flow fixtures. Replacing older toilets (which can use 3.5 to 7 gallons per flush) with modern low-flow models (1.28 gallons or less) is one of the highest-impact indoor changes. A plumber handles toilet replacement; showerheads and faucet aerators are typically DIY.

Tankless water heaters. Tankless (on-demand) water heaters eliminate standby heat loss and reduce water wasted waiting for hot water to arrive at the tap when combined with a recirculation pump.

Recirculation pumps. A hot water recirculation pump keeps hot water circulating in the supply lines so it arrives at the tap almost instantly, without running water down the drain while waiting. These can be installed on most existing systems by a plumber.

Greywater and Rainwater Systems

California allows homeowners to install certain greywater systems without a permit - specifically laundry-to-landscape systems that route washing machine water to outdoor plants. More complex systems require a permit.

Rainwater collection is legal in California. Simple rain barrels connect to existing downspouts and are easy for a contractor or DIYer to install. Larger cisterns require local ordinance compliance.

Working With Local Rebate Programs

Before starting any drought-proofing project, contact your water district to ask about current rebates. The Metropolitan Water District of Southern California, EBMUD, LADWP, and most local water agencies have active rebate programs for lawn conversion, smart controllers, and low-flow fixtures. Some rebates require pre-approval before the work begins.

Sources and editorial notes

Prices and permit requirements vary by location, property, equipment, and scope. Treat price ranges as planning estimates and confirm current requirements with the relevant authority and contractor.

• California Contractors State License Board - when a contractor license is required
• US Department of Energy - Energy Saver
• California Energy Commission - building energy efficiency

Related guides

• Why Riverside and Inland Empire Homes Cost More to Cool
• How to Prep Your Home for Summer Heat
• Dishwasher Not Draining: Causes and When to Call a Plumber

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