Proper drainage doesn’t stop at the gutter. A professionally designed downspout and extension system ensures water is carried safely away from your home’s foundation.
Gutter downspouts attach to the bottom of your gutters and direct the flow of rainwater away from your foundation and to the most appropriate location. Depending on your South Carolina location, downspouts may also be called water pipes, downspout pipes, or something else entirely.
Downspouts and gutter extensions defend your roof, lawn, and foundation from potentially expensive damage. Without a predetermined location for discharge, the rainwater diverted away from your roof could still end up in your foundation or basement.
Our downspout extension options
Book a free, no-obligation estimate for downspout and extension installation.
Your roofline, runoff, and discharge area are reviewed to plan proper drainage away from your foundation.
The right extension system is selected based on your yard layout and drainage needs.
Your downspouts and extensions are installed to carry water safely away from your home.
The system is checked for proper drainage, the area is cleaned up, and water flow is confirmed.
We have over 15 years of experience in the home improvement industry and are dedicated to providing our customers with high-quality materials and services. That’s why we offer Gutter Shutter®, We provide the strongest seamless gutters in the industry with systems that never clog, sag, or pull away. That assures effective drainage and absolute protection against water damage.
Competitors
Performs well on both steep & shallow roofs
Lifetime No Clog Guarantee – Will never clog or fill with debris
No-Pull Guarantee – Will never pull away from your home for the lifetime of the structure
Financing available
Cantey Gutters offers stress-free financing options for homeowners throughout The Southeast. During your free consultation, we can discuss our financing options designated to fit your specific project.
Gutters collect water from your roof, but without properly installed downspouts and extensions, that water ends up next to your foundation. When water is not directed away, it can lead to standing water, soil erosion, and moisture problems in basements or crawl spaces. A properly designed system moves water a safe distance from your home. This protects your foundation and helps prevent long-term structural issues.
Downspouts should be sized based on your roof area and the amount of rainfall your home receives. Standard 2×3 downspouts may not be enough for larger roofs or high-capacity gutter systems. In those cases, 3×4 or oversized downspouts may be recommended to handle higher water volume. Proper sizing helps prevent overflow and improves overall drainage performance.
Extension options include above-ground rigid extensions, flexible extensions, and underground PVC drainage systems. Above-ground options are visible and easy to adjust, while underground systems move water below the surface to a discharge point away from the home. Some systems include buried drain lines with pop-up emitters. The right choice depends on your yard layout and drainage needs.
Underground drainage systems typically require minor trenching to install buried drain lines. This allows water to be carried safely away from the foundation and discharged at a proper location. The system is pitched to ensure consistent flow. Once installed, the surface is restored for a clean appearance.
Yes, downspouts and extensions can be integrated with both new and existing gutter systems. Components are fabricated from durable aluminum and can be color matched to coordinate with your home’s exterior. They can also be paired with larger 6 inch gutters or high-volume systems when needed. Proper placement ensures efficient drainage and balanced water flow.
Water should discharge far enough away to prevent it from draining back toward the home. Proper pitch and grading are evaluated to make sure runoff flows away from the foundation. Extensions and drain systems are designed to move water to a safe discharge point. This helps reduce the risk of foundation movement, staining, and moisture issues around the home.