Whole-home rainwater systems designed, installed, and serviced across Texas

Harvest Rain designs and installs turn-key potable rainwater systems that supply homes using properly sized storage, filtration, and collection infrastructure matched to your property, roof area, and water demand.

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How Rainwater Supplies a Home

500+ systems installed • 25M+ gallons delivered statewide

Can rainwater supply a home in Texas?

Yes. With properly sized storage and collection area, many homes across Texas rely solely on rainwater as their primary household water supply, often using 10,000 gallons or more of storage depending on occupancy and roof size.

Whole-home rainwater systems are designed around roof area, household demand, drought patterns, and how storage integrates with the property. Across Texas, especially in areas with limited groundwater or no municipal utility service, rainwater is a proven primary water source for many homes.

Why is rainwater system design important?

Rainwater systems aren’t plug-and-play. Every site is different and requires different approaches. Rooflines, topography, usage goals, and aesthetics all factor in.

A well-designed system ensures you collect enough water, maintain quality, and avoid costly mistakes down the line. It’s the difference between something that just works and something that works well for decades

Over 10 million gallons of rainwater storage installed across Texas.

TYPES OF RAINWATER SYSTEMS WE DESIGN

We design rainwater systems that meet your land, your goals, and your water needs. Whether you’re looking for irrigation, potable supply, or both, we start with a clear plan and Build it Smart from the Start.

Whole House Systems

potable rainwater system design

Turn every tap in your home into clean, self-sufficient rainwater. Our potable rainwater systems are professionally designed to collect, filter, disinfect, and deliver safe drinking water for homes throughout the Texas Hill Country.

→ Learn more about whole-house systems

Service & Inspection

Keeping Every System Running Strong

From tune-ups to full rebuilds, our Service team knows rainwater systems inside and out. We service everything we install – and plenty built by others – making sure your tank, pump, and filtration setup stay reliable year after year.

→ See our service & inspection options

Irrigation Systems

Rainwater Collection for Landscape + Pool Use

Water smarter and stay water-restriction-proof. Our irrigation systems capture roof runoff to keep your landscape, pools, and barns supplied through dry spells – helping Texas properties conserve groundwater and stay resilient year-round.

→ Learn more about irrigation system options

Impervious Cover

Turn a Requirement into a Reward

Our rainwater systems help homeowners and builders meet impervious cover requirements while earning back valuable credits. Designed to satisfy HOA and city standards, they make compliance smart, sustainable, and rewarding.

→ Read more about rainwater for impervious cover

Hill Country Rainwater Experts

We’ve been building rain water collection systems across the Hill Country and beyond for over 30 years. Our team designs systems that fit your site, your lifestyle, and your water goals, whether it’s a 1,000 gallon garden cistern or a 30,000-gallon rain storage setup for full-house use.

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