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RoofCostLab

2026 project cost

Install Downspouts Cost

$722 to $1,167 for 100 linear ft, or about $7.22–$11.67 per linear ft. That covers 5 material line items and about 8 labor hours.

Estimate your install downspouts project

Adjust the linear feet of downspout and state to re-price the job.

linear ft

Estimated total

$722 – $1,167

materials + labor

Materials
Labor
Per linear ft

What the materials cost

Quantities for 100 linear ft, including a 5% waste allowance.

Material Qty Cost
Aluminum Downspout (10 ft section) 10.5 EA $158 – $315
Downspout Elbows 8.4 EA $42 – $84
Downspout Straps 21 EA $42 – $84
Splash Blocks 4.2 EA $34 – $76
Screws and Fasteners 1.05 SET $5 – $11

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How long it takes

  1. 1

    Planning & Measurement 1 hour

    Assess gutter system, determine optimal downspout locations, and measure lengths needed for proper drainage in your area.

  2. 2

    Cutting & Assembly 2-3 hours

    Cut downspout sections to size, attach elbows and connectors, and pre-assemble components for efficient installation at your area.

  3. 3

    Mounting Downspouts 2-3 hours

    Secure downspouts to gutters and exterior walls using brackets and screws, ensuring proper alignment and slope for water flow in your area.

  4. 4

    Sealing & Testing 1 hour

    Seal all joints with gutter sealant, test water flow through the system, and make adjustments to ensure effective drainage away from your area foundation.

Frequently asked questions

Do I need a permit to install downspouts in your area?

In most of your area, install downspouts is treated as maintenance rather than structural work, so no building permit is required. A permit does become necessary if the job expands into replacing the roof covering or the decking beneath it. Confirm with your local building department in your area before work starts.

Is install downspouts covered by a home warranty or insurance?

Routine work like this is normally treated as owner maintenance, so home warranties and insurance policies rarely cover it. Insurance generally applies only when the damage comes from a sudden covered event such as a storm. Check your policy terms for your area before assuming coverage.

What are the benefits of installing downspouts?

Installing downspouts in your area helps direct rainwater away from the foundation, preventing water damage and erosion. Properly installed downspouts can also help maintain the structural integrity of your property.

Can I install downspouts myself, or should I hire a professional?

While installing downspouts can be a DIY project, hiring a professional in your area ensures proper installation and adherence to local codes. A professional can also provide advice on the best materials and placement for optimal performance.

How often should downspouts be maintained?

Downspouts in your area should be inspected and cleaned at least twice a year to ensure they are functioning properly. Regular maintenance helps prevent clogs and potential water damage to your property.

Calculators for this project