Rainwater Harvesting

2nd_rainwaterEffective rainwater system design requires an engineer’s understanding of how area, volume, gravity and material qualities relate to slope, pressure, forces and structural integrity. Precise technical calculations will ensure your system is right-sized.

You may want to consider one of our rainwater package systems, which range from 500 to 5,000 gallons, are scaled for common situations and used primarily to irrigate landscaping. Or you may be interested in having us design a custom rainwater harvesting system that can supply all your water, indoors and out.


Not only can we design your system, we can also manage the construction of our designs. Our construction management experience guarantees approved applications and permits to glide through the city’s process. Orchestration of an experienced staff and pre-qualified subcontractors includes managing bid collection, quality control and oversight of all inspections (up to 10!). Then we create personalized and professional as-built plans and operations and maintenance instructions and provide one year of support to ensure the success of your new rainwater harvesting system.

Why Harvest Rainwater?

Rainwater harvesting systems are now required by law in many places, and, for most inhabited islands, the only fresh water source is rain. Rainwater harvesting is perhaps the simplest and most practical way to introduce water sustainability measures for existing buildings. Some of the many other arguments for rainwater include:

  • Rainwater harvesting systems regulate the supply of rain. With proper maintenance rainwater can be stored indefinitely. With adequate storage, rainwater systems can supply all your water.
  • Rainwater can be filtered and treated to replace or supplement municipal water usage.
  • If you are not interested in potable applications, rainwater can be brought inside to supply toilets as another way to offset treated water usage.
  • Using rainwater for irrigation can save up to 50% of total water costs.
  • Rainwater is immune from water rationing which usually begins when plants needs water most. Rainwater can be stored to help drought- and fireproof landscaping, trees and property during summer rationing.
  • As rainwater is free of sodium, minerals and chlorine, it inhibits salt accumulation in the soil and, therefore, facilitates better water uptake by plants. When irrigated with rainwater, plants are healthier and more productive.
  • Rainwater harvesting can concurrently address stormwater and drainage issues.
  • Rainwater harvesting helps decrease overall community energy demands for transport and treatment of water. To that end, many municipalities offer generous rebates on the installation of rainwater harvesting systems.
  • If you live in Austin, or get your water from Austin, the City will rebate up to half your installation costs, up to $5,000 total.

See the Idea Pond for more detailed “Rainwater 101” information.