# Lead Back Gutter

This item:Lead Back Gutter

£75.75–£167.20Price range: £75.75 through £167.20exc. & £90.90 inc.

Leadworx back gutter chimney flashing provides superior waterproofing where your chimney meets the roof slope. Custom-crafted in Cornwall from premium Code 4 lead (BS EN 12588 certified), our precisely engineered back gutters ensure complete water diversion and protection for this vulnerable roof junction, regardless of chimney size or roof pitch.

## Description

### **Professional Chimney Waterproofing Solution**

Leadworx back gutter chimney flashing delivers exceptional protection against water ingress at one of your roof’s most vulnerable points. Each piece is custom-made to your exact specifications, ensuring a perfect fit and flawless performance in all weather conditions.

### **What is a Back Gutter?**

A back gutter is the critical waterproofing component installed on the upper side of a chimney where it meets the roof slope. This specialised lead flashing creates a channel (gutter) that diverts rainwater around the chimney stack rather than allowing it to pool against the brickwork. Without a properly fitted back gutter, water can penetrate this junction, causing serious structural damage, damp issues, and interior water staining.

### **Premium Materials & Craftsmanship**

Our back gutters feature:

- 100% recycled Code 4 sheet lead milled to British Standard BS EN 12588
- Precision manufacturing for perfect installation
- Custom sizing for any chimney configuration
- Handcrafted in Cornwall by experienced lead specialists
- Durable construction designed to last decades

### **Ordering Your Custom Back Gutter Flashing**

To ensure a perfect fit for your chimney, we need three key measurements:

1. **Chimney Dimensions:** The exact width and length of your chimney stack in millimeters.
2. **Roof Pitch:** The angle of your roof slope where the chimney sits. See our guide on [how to measure pitch](/content/news/latest-news/what-is-a-chimney-flashing/index.html) for simple instructions on determining this crucial measurement.
3. **Quantity Required:** The number of back gutters needed for your project.

##### We supply lead back gutters in sizes 450mm to 1500mm, our popular sizes include 450mm, 500mm & 850mm.

## Specifications

|     |     |
| --- | --- |
| Width | Size requested + 300mm |
| Sizes Available | 450mm, 500mm, 550mm, 600mm, 650mm, 700mm, 750mm, 800mm, 850mm, 900mm, 950mm, 1000mm, 1050mm, 1100mm, 1150mm, 1200mm, 1500mm |
| Upstand | 100mm |
| Sole Plate / Layboard | 150mm |
| Under Cloak | 200mm |
| Side Lap | 150mm |
| Roof Pitch (Degrees) | 20, 22.5, 25, 27.5, 30, 32.5, 35, 37.5, 40, 42.5, 45, 47.5, 50 |

## 68 reviews for Lead Back Gutter

01.  Rated **5** out of 5

**Chris** _(verified owner)_–May 28, 2026
    Leadworx was totally helpful in my initial enquiry for a lead apron and gutter on my chimney stack. Totally recommend these lads 5***** for quality and professionalism

02.  Rated **5** out of 5

**Ben** _(verified owner)_–April 2, 2026
    I bought a front apron and back gutter for my chimney and thought they were very well made. Fast turnaround and next day shipping. Very happy with that!

03.  Rated **5** out of 5

**Gareth**–March 26, 2026
    Super helpful, made and delivered within a week no messing about will use again.

04.  Rated **5** out of 5

**Craig** _(verified owner)_–December 4, 2025
    5 star

05.  Rated **5** out of 5

**Jack** _(verified owner)_–October 22, 2025
    Fantastic service

...

68.  Rated **5** out of 5

**N Legg**–June 23, 2017
    Just want to say thanks for a great service, arrived today.
    Fitted perfectly.
    Thanks again.