Types of Aluminium Guttering | Profiles & Colours | Bespoke Guttering
Guttering Types

Types of Aluminium Guttering

Aluminium guttering is available in two main systems: seamless and sectional. Both are made from aluminium, both are durable and low-maintenance — but they differ in how they are manufactured, what colours are available, and which situations each suits. This page explains the differences, covers the main profile shapes, and helps you choose the right option for your property.

If you have already decided and want a quote, call us on 020 3539 0372 or get a free quote here.

What Is the Difference Between Seamless and Sectional Aluminium Guttering?

Seamless aluminium guttering is roll-formed on site from a continuous coil to the exact length of your property — no joints exist in the run. Sectional aluminium comes in pre-cut lengths joined together on installation. The key difference: seamless has zero joints and zero leaks; sectional can be produced in any RAL colour.

Seamless Aluminium

  • Manufactured on site to exact measurements
  • Zero joints — zero leaks
  • 30-year insurance-backed guarantee
  • BBA certified
  • From £35 per metre supply and fitted
  • 3 standard colours

Sectional Aluminium

  • Factory cut to length, joined on site
  • Joints sealed with clips and rubber seals
  • Available in any RAL colour
  • Ideal for listed buildings and heritage projects
  • Multiple profile shapes available
  • Supply and fit available

At Bespoke Guttering, seamless aluminium guttering is our primary product — installed on approximately 99% of all our projects. A mobile roll-forming machine is transported to your property and each length of guttering is pressed on site to the exact dimensions of each elevation. The only connection points are at corners and end caps — there are no joints along the body of the gutter.

The result: no leaks from failed joints, no repainting, and a 30-year insurance-backed guarantee. Every seamless system we install is certified by the British Board of Agrément (BBA), with prices starting from £35 per metre including supply and installation.

Sectional aluminium guttering is the right choice when a specific RAL colour is required — for listed buildings, heritage properties, or large commercial developments with a defined colour specification. Contact us to discuss whether your required colour is achievable within your budget.

Which Aluminium Guttering Profile Is Right for My Property?

A profile is the cross-sectional shape of the gutter. It determines water capacity, visual appearance, and which architectural styles it suits. There are four main profiles available: Ogee, Half Round, Square Line, and Deep Flow.

Ogee

Seamless standard

The most popular profile in the UK and the standard shape for all seamless aluminium guttering. Its curved S-shape suits both traditional and modern properties — enough character for an older building, clean and contemporary for a new build.

Half Round

Sectional aluminium

A classic semi-circular profile with a symmetrical appearance. Best suited to Victorian, Edwardian, and other period properties where a sympathetic architectural match is important.

Square Line

Sectional aluminium

A sharp, angular profile designed for new builds and properties with a modern or minimalist aesthetic. Carries more water than the half round of the same width — practical for larger roof areas or steeper pitches.

Deep Flow

Sectional aluminium

Developed for high-volume drainage: large roof areas, commercial properties, industrial buildings, or any property subject to significant rainfall. Available in 125mm and 150mm widths for higher flow capacity than standard domestic profiles.

What Colours Does Aluminium Guttering Come In?

Seamless aluminium guttering is available in three standard RAL colours: RAL 7016 Anthracite Grey, RAL 9005 Jet Black, and RAL 9010 White. Sectional aluminium guttering can be produced in any RAL colour. Anthracite grey is by far the most popular choice for modern UK properties.
Anthracite Grey Most popular RAL 7016
Jet Black RAL 9005
White RAL 9010

Anthracite grey has become the dominant colour choice across new build and renovation projects throughout the UK, complementing contemporary cladding, render, and timber finishes. Jet black suits traditional and period properties. White is typically specified where fascias, soffits, or windows are white and a uniform roofline appearance is required.

If your project requires a specific RAL colour — for a listed building, a commercial specification, or to match an existing external finish — sectional aluminium is the right product. Contact us to confirm whether your preferred colour is achievable within your budget.

Is Aluminium Guttering Better Than UPVC?

Yes — across every metric that matters over a 10 to 20-year period. Aluminium guttering lasts 30–50 years versus 10–20 for UPVC, requires no joint repairs, never needs repainting, and is manufactured from 90% recycled material. The upfront cost premium pays back within the UPVC replacement cycle.

Aluminium outlasts UPVC by two to three times, eliminates the joint failures that cause UPVC leaks, and carries a 30-year insurance-backed guarantee. When total 20-year ownership costs are compared — including UPVC replacement and joint repair — aluminium is comparable or cheaper.

For the full cost breakdown, durability comparison, and maintenance requirements: Aluminium vs UPVC Guttering: Which Lasts Longer and Costs Less?

Get a free, same-day quote

BBA-certified seamless aluminium guttering supplied and installed across London, Surrey, Kent, Essex and Hampshire. All installations built on site. From £35 per metre with a 30-year insurance-backed guarantee.

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