How Much Do Rain Barrels Cost? Conserving Water Costs Less Than You Think

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Cost Insights:
  • Rain barrels range from $200 to $5,000 per gallon, and most homeowners choose a 40- to 60-gallon barrel for their home.

  • Your rain barrel material and barrel capacity determine your total cost, with plastic barrels costing less than wood or steel options.

  • You should also account for gutter installation, sprinkler system connections, and water filtration systems when creating your project budget.

  • Hiring a local gutter cleaning professional ensures your rain barrel system functions correctly and saves you time maintaining the gutters.

In 2026, the national average cost for a rain barrel is $2,600. Most homeowners can expect to pay $200 to $5,000, with the final cost driven by barrel material, capacity, and any add-ons like gutter installation or water filtration.

Rain Barrel Costs by Gallon: What to Expect?

Most rain barrels cost $0.50 to $4.00 per gallon, and most homeowners opt for a 40- to 60-gallon barrel placed under a gutter downspout. Rain barrels are simple rainwater harvesting systems that capture stormwater before it rolls off your roof and into a storm drain. Costs vary by barrel size, as the breakdown below shows.

Rain Barrel Size In GallonsAverage Cost in 2026
40$20–$160
60$30–$240
80$40–$320

Before You Start: Check Your Local Government

Not all cities and counties allow for rainwater collection, so it's important to check your local government's environmental or health departments before going through with installation. Rainwater is considered in some areas property of the state and therefore can place regulations on how much (if any) gets collected.

Rain Barrel Cost Factors: What Determines the Price?

A rainwater tank in garden
Lea / Adobe Stock

A rain barrel system typically includes a plastic drum (though wood and steel are also options), PVC couplings, a hose, and a screen to keep insects and debris out. These systems are generally less expensive than other rainwater harvesting methods, but your total cost can climb if your home needs gutter work before installation. Here is how costs break down by component.

Rainwater Barrel

A rainwater barrel typically costs around $140 for the 40- to 60-gallon size most homeowners choose, and you can find one online or at a local hardware store. Some homeowners build their own barrel from a large plastic drum, but if you plan to use the collected water for drinking or bathing, the interior must be sterile before use.

Gutter Installation

To harvest rainwater with a rain barrel, you need a gutter downspout properly positioned above the drum. Gutter installation costs an average of $1,100, or $4 to $30 per square foot, depending on your home's size and existing setup.

Sprinkler System Installation

Because homeowners use 30% to 70% of their water outdoors, according to the EPA, pairing a rain barrel with a sprinkler system is a practical way to reduce outdoor water consumption. The cost of a sprinkler system runs around $2,525, making it the most significant add-on cost in a rain barrel setup.

Water Filtration System

Homeowners with large rain barrels who want to use collected water for drinking can add a filtration system to make that possible. A whole-house water filtration system costs an average of $1,000 to $4,000, depending on the system type and your home's needs.

Labor

Many rain barrels are plug-and-play and require no professional help, but extensive installation work runs an average of $45 to $200 per hour for a plumber or contractor. If your project involves gutter work, sprinkler connections, or filtration plumbing, budgeting for professional labor is worth factoring in from the start.

Rain Barrel Additional Costs: What to Budget For?

Beyond installation, a few ongoing costs help keep your rain barrel system functioning properly over time.

Maintenance

Keeping your gutters clean is the most important maintenance task for a rain barrel system, and the cost of a gutter cleaning runs around $160. Based on responses from 72,300 Angi customers, 33% of homeowners schedule gutter cleaning for regular maintenance and 30% do so because of clogs, which can prevent water from flowing properly into rain barrels. 

If your system includes a filtration unit, budget an additional $250 per year for UV bulbs and filters. Cleaning the barrel itself costs little beyond soap and elbow grease.

Ongoing Testing and Treatment

A rain barrel requires regular testing because rainwater can pick up metals, minerals, and bacteria as it moves through your gutters, particularly if you use the water for consumption or irrigation. At-home testing kits cost around $30 to $200 depending on what you want to test for. If testing reveals contamination, treatment options range from boiling the water for low-level issues to purchasing a filtration kit or chemical disinfectants for higher levels of contamination.

DIY vs. Hiring a Pro

Most homeowners don't need to hire a professional contractor to install a rain barrel—especially if they purchase a rainwater collection kit. If you do the job yourself, you could wind up paying less than $200. It depends on the system and your home.

When it comes down to it, you probably don't want to install your own gutters unless you really know what you're doing. You might save a buck, but you could end up creating an expensive problem (hello, accidental leaks and flooding). Some rainwater harvesting systems (like underground cisterns or wet collection systems) are even more difficult to install and require excavation and plumbing work. It's a job best left to a top-rated local plumber.

How to Save Money When Installing a Rain Barrel

Avoid add-on features and opt for a smaller unit, so you can get started for less than $200. To save money on a rain barrel, install a ready-to-use kit. These are typically available at hardware stores and include the main components you need to get started (think: the barrel, the cover or lid, a screen, and an overflow mechanism).

Frequently Asked Questions

Rain barrel water is more commonly used for yard work, but some people install filtration systems to transform rainwater into potable water.

Most homeowners choose a 55-gallon barrel, but it depends on your climate and water needs. A small barrel can flood with just one inch of rain. If you have a 1,000-square foot roof, you can collect 225 gallons of water with just a half-inch of rain.

Depending on your needs, disadvantages to having a rain barrel include not harvesting enough water and risk of contamination. If you live in a region that doesn’t get much rain, you’ll experience dry spells when you may have to supplement your water supply from somewhere else. Evaporation is also a risk during time of high heat, meaning your collected rainwater will slowly decrease.

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