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COST GUIDE

What Affects the Cost of Downspout Extensions and Underground Downspout Drainage

The factors that drive the price of downspout extensions and underground downspout drainage, so you can compare quotes on the same scope. Drainage.net does not publish prices until they are verified.

Pricing pending verification

What drives the cost

  • Number of downspouts and length of each run
  • Above-ground extensions versus buried pipe
  • Outlet type (pop-up emitter, curb outlet, sump)
  • Concrete or walkways to cross
  • Gutter repairs or cleaning needed first
  • Landscaping and irrigation lines to work around

How to compare quotes

  • Ask each contractor to describe where the water will go and what outlet they will use
  • Compare the same scope: length of drain or pipe, number of inlets, and outlet type
  • Ask what restoration is included (sod, concrete, beds, irrigation repairs)
  • Ask who handles utility locates, permits and HOA approval
  • Ask about warranty and what happens if the problem is not solved

About downspout extensions and underground downspout drainage

Carrying roof water away from the foundation, above ground or through buried pipe, to a safe outlet. Read the full solution guide →

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The only accurate price comes from an onsite evaluation of your property. Request one and the professional will confirm scope and price with you directly.

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