K Fascia 5 Inch Aluminum Gutter End Cap - Left or Right

A Gutter Run Is Not Finished Until the Ends Are Sealed

Open or poorly sealed gutter ends let water escape exactly where it should not: onto fascia boards, siding, trim, landscaping, walkways, and foundation areas. That small unfinished edge can turn into stains, rot, erosion, and callbacks.

This 5 inch K Fascia aluminum gutter end cap completes the left or right side of a seamless gutter run and helps create a watertight termination when installed with proper gutter sealant and fasteners. It gives contractors and homeowners a clean finished edge, a better seal, and a color-matched look that belongs on a professional gutter system.

Key Benefits at a Glance

5 Inch K Fascia End Cap for Seamless Gutter Installation and Repair

This K Fascia 5 inch aluminum gutter end cap is made for closing the end of a 5 inch K-style gutter run. Also called a gutter cap, gutter stop, end piece, gutter closure, or gutter termination, it completes the side of the gutter where the run stops instead of turning a corner.

For gutter installers, the value is simple: the end cap finishes the job, protects the edge, and helps prevent water from escaping at the termination. It is built from .027 inch aluminum with a baked enamel finish and is available in left or right configurations so the correct side of the run can be capped cleanly.

For repair work, this cap helps replace damaged, loose, leaking, missing, or poorly sealed gutter end caps. For new installs, it gives crews a clean factory-style finish in the correct color, profile, orientation, and quantity.

GutterAll in Damascus, OR supports gutter installers, contractors, maintenance teams, and homeowners with gutter components, pickup, local delivery, and nationwide shipping.

The Small Part That Prevents the Ugly Callback

A gutter can be pitched right, hung right, and still leak if the end cap is loose, poorly sealed, cracked, missing, or installed on the wrong side. Water escaping at the end of a run can stain siding, drip behind fascia, damage trim, splash walkways, erode soil, and send water where the gutter system was supposed to keep it from going.

A properly fitted left or right end cap, installed with quality gutter sealant and secure fasteners, helps close that weak point. It turns an open gutter end into a finished water-control edge.

Best use cases include seamless gutter installation, end cap replacement, leak repair, storm damage repair, contractor inventory, color-matched repairs, residential gutter runs, and light commercial K-style gutter systems.

Best Uses for Gutter Installers and Repair Crews

How the End Cap Helps the Gutter System Work

A gutter end cap closes the end of the trough so water does not spill out of the side. The gutter sealant provides the primary water barrier, while rivets or screws help hold the cap tight against the gutter body.

Left and right orientation matters because K-style gutter profiles are not symmetrical at the ends. Choosing the correct side helps the cap sit properly, seal more cleanly, and create the finished appearance expected on professional gutter work.

This end cap is for stopping a gutter run. If the gutter turns a corner, use the correct inside or outside miter instead of an end cap.

Choose the Correct Part

Key Features

Quick Decision Summary

Choose the K Fascia 5 Inch Aluminum Gutter End Cap when a 5 inch K-style gutter run needs a clean left or right termination. It is the right part for finishing seamless gutter sides, replacing leaking end caps, matching existing colors, and completing new gutter installations with a sealed, professional edge.

Benefits Crews Notice Fast

• Completes the open side of a 5 inch K Fascia gutter run
• Helps keep water inside the gutter instead of spilling from the end
• Supports a cleaner seal when used with gutter sealant and fasteners
• Helps protect fascia, siding, trim, landscaping, and foundation areas from misplaced runoff
• Left and right options support proper gutter termination
• .027 inch aluminum provides a strong, rigid part for contractor use
• Aluminum construction resists rust
• Baked enamel finish supports a clean exterior appearance
• 31 factory colors help match repairs and new installations
• Singles are practical for one-off repairs
• 100-piece boxes support contractor inventory and repeat installs
• Fits standard 5 inch K-style / K Fascia gutter systems
• Useful for residential and light commercial gutter work
• Also known as a gutter cap, gutter stop, end piece, or gutter termination
• Available with pickup, local delivery, and nationwide shipping through checkout

Product Specifications

31 Factory Color Options

Choose a factory color to match the gutter system, trim package, repair section, or contractor order.

Who Uses These End Caps?

Installation Guide for a Cleaner Seal

1. Confirm the gutter profile is 5 inch K Fascia / K-style and choose the correct left or right end cap.
2. Remove debris, dirt, old sealant, oxidation, and loose material from the gutter end.
3. Dry the gutter end fully before applying sealant.
4. Apply compatible gutter sealant around the inside edge of the end cap and the contact area.
5. Press the end cap firmly onto the gutter end so the profile seats evenly.
6. Secure the cap with appropriate rivets or sheet metal screws.
7. Apply additional gutter sealant along the inside seam where the end cap meets the gutter.
8. Smooth excess sealant for a clean appearance and full contact.
9. Allow sealant to cure according to the sealant manufacturer directions before heavy water exposure.
10. Inspect after the next rain and re-seal if any seam, fastener point, or corner shows water escape.

Contractor Tip

The fasteners hold the cap. The sealant stops the water. Treat the inside seam like the part the customer will never see but the rain will absolutely inspect.

Frequently Asked Questions

Fit, Sealant, and Installation Notice

Confirm the gutter profile, size, color, and left/right orientation before installation. This cap is for 5 inch K Fascia / K-style gutters and is not a corner miter.

Use compatible gutter sealant and appropriate rivets or sheet metal screws. Standard household caulk may not provide the same long-term adhesion or flexibility needed for gutter movement and weather exposure.

Cut metal edges can be sharp. Wear gloves and eye protection when handling, drilling, fastening, or removing old end caps.

Use ladder safety and fall protection when working at height. Do not test with water until sealant has cured according to the sealant directions.

Need Help Matching Left, Right, Color, or Quantity?

The right end cap depends on gutter profile, orientation, color, and whether the job needs a single repair piece or contractor box quantity. Use website chat to match the correct setup before ordering.

Product Summary Box

The K Fascia 5 Inch Aluminum Gutter End Cap completes the left or right side of a seamless 5 inch K-style gutter run. Built from .027 inch aluminum with a baked enamel finish and 31 factory color options, it helps contractors and homeowners close gutter ends cleanly, reduce end leaks, protect exterior surfaces, and finish gutter installations or repairs with a professional color-matched result.