GRP Downpipes

Steadfast and durable, our GRP downpipes are ideal as a cost-efficient replacement for damaged guttering on heritage buildings. Manufactured at our specialist facilities in Leeds, UK, our GRP products offer a sturdy downpipe solution, and are available in a range of sizes as well as square, rectangular and circular profile options.

Offering one of the best strength-to-weight ratios of any construction material on the market, our GRP (glass-reinforced plastic) downpipes provide a durable, low maintenance alternative to traditional Cast Iron systems.

Dimensions & Material Specifications

Our GRP downpipes are manufactured in 1.8m and 0.9m lengths as required, coming complete with sockets for ease of installation. All of our GRP pipes are glass fibre reinforced mouldings impregnated with Lloyds-approved resins, whilst special formulations of laminate provide the desired strength and rigidity.

Colours & Finishes

All of our GRP downpipes are through-coloured, ensuring that their chosen colour does not fade or chip over time due to wear and tear. Coming in a cast iron black as standard, these can be ordered in custom colours at a premium, including BS5252 (inc BS4800) or RAL colours. They can also be colour matched to the palettes of Dulux, Little Greene or Farrow & Ball.

With a varied range of ornamental earbands also available to provide the finishing touches, your GRP downpipes can add style and sophistication to the exterior of your building.

Should you wish to install our GRP downpipes yourself, we also offer a supply only service. However, please be aware that we have certain recommendations when installing your GRP downpipes, which include using reactive cure sealant conforming to ISO11600 (which is available to purchase separately).Our most popular downpipe sizes are normally held in stock. Other sizes are readily available; please contact our sales office for accurate delivery details.

Find out more about our GRP downpipes in the case studies below or get in touch with our team today to discuss your project!

At Yeoman Rainguard, we offer the option of comprehensive support, from help developing your concept to our renowned installation service. However, if you’d like to fit our GRP downpipes yourself, we’re happy to send our materials directly to site to be fitted. Simply contact our team to discuss your requirements.


Thirsk Lead Effect

Sizes: (mm) 100 x 75

Cathedral Lead Effect

Sizes: (mm) 125 Dia

Linton Lead Effect

Sizes: (mm) 100 x 75

Dee Standard Clip

Sizes: (mm) 65 Dia. 75 Dia. 100 Dia.

Cloverleaf Clip

Sizes: (mm) 75 x 75, 100 x 75, 100 x 100.

Fleur De Lys Clip

Sizes: (mm) 100 x 75

Dee Cathedral Clip

Sizes: (mm) 125 Dia.

Norman Cross Clip

Sizes: (mm) 100 x 75

Rose Clip

Sizes: (mm) 125 x 100
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Circular Ornamental

Sizes: (mm) 65,75,100 Dia.

Settle Lead Effect

Sizes: (mm) 125 x 100

Standard Rectangular Clip Downpipe

Sizes: (mm) 65 x 65, 75 x 50, 75 x 75, 90 x 90, 100 x 75, 110 x 110, 125 x 100, 150 x 100 and 150 x 150

Circular Standard Clip

Sizes: (mm) 65 Dia, 75 Dia, 100 Dia.

Ornamental Clip

Sizes: (mm) 65 x 65, 100 x 75, 125 x 100, 150 x 100.

Motif Clip

Sizes: (mm) 100 x 75

GRP Downpipe Accessories

Our GRP downpipes accessories range contains the full selection of products needed to ensure an efficient and functional rainwater system fitting. From offsets to branches to connectors, discover our range.

View Accessories
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Standard Accessories

  • Shoes
  • Top offsets
  • Side offsets
  • Plinth offsets
  • Branches
  • Bends
  • Loose clips
  • Loose socket with spigot
  • Square to round connectors.

Optional Accessories

  • Special bends
  • Special offsets
  • Access plates
  • Rodding eyes

Case Studies

Yeoman Rainguard Stands up to the Elements at New RNLI Station

Yeoman Rainguard Stands up to the Elements at New RNLI Station

Ruling in Favour of GRP Rainwater Goods on 600 Year Old Church

Ruling in Favour of GRP Rainwater Goods on 600 Year Old Church