Cost to Install a Backflow Preventer

Nearly every American home has a sewage system. Those that don’t have one are connected to a system that collects sewage and takes it away from their home. This means that you are connected to a municipal sewer network. It collects sewage from each home and takes it to a centralised processing plant.

Average cost to install a backflow prevention

The usual price for a small backflow preventer, usually connected to a garden valve valve, is between $3 and $35. The cost of larger versions, which are usually installed in the spigots for home appliances such as a power washer, is typically around $10 to $100.

Sprinkler, irrigation or sewer system

This backflow preventer can be used on more than one pipe. These multi-valve backflow preventions are installed on main water and sewer pipes. Backflow prevention costs can range from $100 to $600 for homeowners.

Multi-family or commercial

This type of backflow installation costs between $1,000 and $10,000, according to the conservative estimates. For large industrial facilities such as food factories or chemical processing plants, costs can rise up to $30,000

The average cost:

  • A small backflow stopper that attaches to the end of a gardenhose to prevent dirt or fertiliser entering the water supply costs between $3-$35. These devices allow liquid to flow only one direction.
  • Backflow preventers that are designed to be used with a residential sprinkler/irrigation system or sewer system are more complicated than those for hoses and cost typically $100-$600 more
  • Backflow preventers that are slightly larger prevent backflow from appliances such as a boiler and equipment like a power washer cost between $10-$100.
  • The cost of non-residential backflow preventions for small commercial and multi-family buildings is between $1,000 and $10,000 depending on the size and type. The cost of installation will vary depending on the size and location.
  • The cost of professional installation of a residential backup flow preventer is between $25 and $250 depending on the location and complexity. The cost of installing a sprinkler system includes often the installation of a backflow preventioner.

THE OVERALL COOST

You can expect to spend between $135- $1,000 for a backflow prevention and installation. The average cost is around $300.

It all depends on how large and what type of system you have, as well your budget. A $135 installation will likely be a low-end model. A $1,000 installation would be more expensive and involve a complex installation, perhaps in large pipes.

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