--- product_id: 56426053 title: "Spear & Jackson - Spray and Leave Concentrated Mould, Algae and Lichen Remover - 5 Litre" brand: "spear & jackson" price: "€ 41.22" currency: EUR in_stock: true reviews_count: 8 url: https://www.desertcart.pt/products/56426053-spear-and-jackson-spray-and-leave-concentrated-mould-algae-lichen store_origin: PT region: Portugal --- # Covers 100-250m² per application 5L concentrate = 25L ready-to-use Premium UK-made quality Spear & Jackson - Spray and Leave Concentrated Mould, Algae and Lichen Remover - 5 Litre **Brand:** spear & jackson **Price:** € 41.22 **Availability:** ✅ In Stock ## Summary > 🌿 Spray, Leave, and Impress – Effortless Outdoor Renewal! ## Quick Answers - **What is this?** Spear & Jackson - Spray and Leave Concentrated Mould, Algae and Lichen Remover - 5 Litre by spear & jackson - **How much does it cost?** € 41.22 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/56426053-spear-and-jackson-spray-and-leave-concentrated-mould-algae-lichen) ## Best For - spear & jackson enthusiasts ## Why This Product - Trusted spear & jackson brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fast-Drying Formula:** Treated areas are ready to use as soon as dry—no downtime, no hassle. - • **Maximize Your Coverage:** One 5L bottle dilutes to 25L, effortlessly treating large outdoor spaces. - • **Long-Lasting Protection:** Prevents algae, mould, and lichen re-growth for months, keeping your space pristine. - • **Trusted British Heritage:** Spear & Jackson’s premium UK manufacturing guarantees quality and reliability. - • **Versatile Surface Savior:** Perfect for patios, roofs, fencing, UPVC windows, sheds, boats, decking, and driveways. ## Overview Spear & Jackson Spray and Leave Concentrated Mould, Algae and Lichen Remover is a premium UK-manufactured 5L concentrate that dilutes to 25L, covering up to 250m². Designed for multiple outdoor surfaces, it quickly removes and prevents re-growth of algae, mould, and lichen, with treated areas ready to use once dry. Trusted for its long-lasting results and versatile application, it’s the go-to solution for maintaining immaculate outdoor spaces. ## Description Product Description One 5lt bottle makes 25lts of product Covers 100-250m2 depending on the surface Premium UK Manufactured Brand - Removes algae, green mould, and lichen Designed for use on patios, roofs, fencing, upvc windows, sheds, caravans,boats, decking and driveways Treated area can be used as soon as it has dried Helps prevent re-growth see results that last for months Product Description Spear & Jackson Spay & Leave is a premium quality formulation that will keep on working for many months due to it's strong cleaning power, results will be visible in a few days and will keep improving over time. Spear & Jackson's products have become widely recognised for their heritage and high quality so you can rest assured that buying British is buying the Best Box Contains 1 x 5 litre Concentrate Note: The colour of the bottle may wary due to availability Directions bp1: Dilute the 5L bottle to make 25L of product. Use it to cover 100-250m2 depending on the surface. bp2: Apply the product to remove algae, green mould, and lichen. bp3: Use it on various surfaces such as patios, roofs, fencing, upvc windows, sheds, caravans, boats, decking, and driveways. bp4: The treated area can be used as soon as it has dried. bp5: The product helps prevent re-growth, ensuring results that last for months. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Safety Warning Keep out of reach of children and pets. Avoid contact with skin and eyes. Do not swallow. Use in well-ventilated areas. Wear protective clothing, gloves, and eye/face protection. In case of accidental ingestion or exposure, seek medical advice. Dispose of contents/container in accordance with local regulations. Box Contains 1 x 5 litre Concentrate See more ## Features - One 5lt bottle makes 25lts of product Covers 100-250m2 depending on the surface - Premium UK Manufactured Brand - Removes algae, green mould, and lichen - Designed for use on patios, roofs, fencing, upvc windows, sheds, caravans,boats, decking and driveways - Treated area can be used as soon as it has dried - Helps prevent re-growth see results that last for months ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B011KT373Q | | Best Sellers Rank | 2,796 in Garden (See Top 100 in Garden) 23 in Moss Control | | Brand Name | Spear & Jackson | | Country Of Origin | United Kingdom | | Coverage | 100-250 Square meters | | Customer Reviews | 4.3 4.3 out of 5 stars (2,717) 4.3 out of 5 stars | | Item Form | Liquid | | Item Weight | 5000 Grams | | Liquid Volume | 5 Litres | | Manufacturer | Assured Products | | Model Number | 9143 | | Part Number | 9143 | | Unit Count | 5000.0 millilitre | ## Product Details - **Brand:** Spear & Jackson - **Item form:** Liquid - **Item weight:** 5000 Grams - **Liquid volume:** 5 Litres - **Manufacturer:** Assured Products ## Images ![Spear & Jackson - Spray and Leave Concentrated Mould, Algae and Lichen Remover - 5 Litre - Image 1](https://m.media-amazon.com/images/I/61xT98cxDcL.jpg) ![Spear & Jackson - Spray and Leave Concentrated Mould, Algae and Lichen Remover - 5 Litre - Image 2](https://m.media-amazon.com/images/I/51U42wjWuJL.jpg) ![Spear & Jackson - Spray and Leave Concentrated Mould, Algae and Lichen Remover - 5 Litre - Image 3](https://m.media-amazon.com/images/I/51z5TCs22bL.jpg) ![Spear & Jackson - Spray and Leave Concentrated Mould, Algae and Lichen Remover - 5 Litre - Image 4](https://m.media-amazon.com/images/I/51PMiN21+aL.jpg) ## Available Options This product comes in different **Style Name** options. ## Questions & Answers **Q: Can I use this on a fibreglass roof?** A: I use it on everything and it works, not tried on fibreglass but sure it would be fine. I have a white painted house and live by woodland so the walls outside get algae on them and i spray the walls with it in spring and they come back to white so saves painting the walls. **Q: Will it clean a gravstone** A: I haven't cleaned a gravestone but I have cleaned my stone birdbath with excellent results. **Q: what is the active ingredient?I can't seem to find it in the description** A: 5-10% Lauryl dimethyl benzyl ammonium chloride. 5 - 10% Myristyl dimethyl benzyl ammonium chloride. 1-5% EDTA - Ethylenediaminetetraacetic acid. If you are non the wiser, look it up on Wikipedia. **Q: Is the sprayer included** A: No, the sprayer is not included ## Customer Reviews ### ⭐⭐⭐⭐⭐ Cleaned our cream rendered house lovely *by on Reviewed in the United Kingdom 26 June 2026* Brilliant for our house it’s rendered in cream and over winter it tends to get a green tinge one spray of this wait for the rain and then it’s clean. It’s worked so well the neighbours popped over while I was using it and they now use it.Just be careful and protect yourself when you use it.I put it in the karcher jet machine to get to the top not sure how safe this was but I’m still alive. ### ⭐⭐⭐⭐ It actually works *by on Reviewed in the United Kingdom 9 September 2026* Read the reviews, but wasn't convinced, until I tried it. My block paving patio had developed really dark patches, and wasn't good to look at. So I tried spray and leave, and to be honest, for a few weeks it didn't seem to be working. But it was working, just needed to be patient. ### ⭐⭐⭐⭐⭐ good experience *by on Reviewed in the United Kingdom 10 August 2026* it was good ## Frequently Bought Together - Spear & Jackson - Spray and Leave Concentrated Mould, Algae and Lichen Remover - 5 Litre - Spear & Jackson 5LPAPS 5 Litre Pump Action Pressure Sprayer - Spear & Jackson SPRAYERWAND Extendable Sprayer Wand - fits S&J 5L & 8L, Black --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/56426053-spear-and-jackson-spray-and-leave-concentrated-mould-algae-lichen](https://www.desertcart.pt/products/56426053-spear-and-jackson-spray-and-leave-concentrated-mould-algae-lichen) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-26*