Easy application method: Fernox F4 Leak Sealer Express 400ml is designed for a quick, simple, and hassle-free application. With its unique pressurized canister, it can be directly introduced into a heating system without the need for draining or disassembly, saving time and effort.
Seals small leaks effectively: This product is specifically formulated to seal small, inaccessible leaks and weeps which can cause pressure loss in your central heating system. It's an ideal solution for hard-to-reach places where manual intervention is difficult.
Non-toxic and safe to use: The Fernox F4 Leak Sealer is composed of non-toxic, environmentally friendly materials. It's safe for prolonged exposure to the system's components and doesn't pose any risks to the health of homeowners or technicians.
Compatible with all materials and metals: This leak sealer is compatible with all metals, including steel, copper, brass, and aluminum, as well as materials such as plastic and rubber, found in heating systems. This wide-ranging compatibility ensures a versatile application across various system configurations.

Delivery Information

Thank you for choosing our services. We strive to ensure your orders are delivered to you swiftly and efficiently. Please find below our delivery information to guide you through the process:

Standard Delivery Charges:

  • Orders up to £150: £6.99
  • Orders over £150: Free Delivery

Surcharge for Certain Postcodes: Please note that certain postcodes may incur a surcharge due to logistical constraints or additional delivery charges imposed by our shipping partners. If your order falls within such postcodes, we will promptly contact you in advance to discuss the applicable surcharge and seek your confirmation before proceeding with the delivery.

Delivery Times: We aim to dispatch all orders promptly upon receipt and ensure timely delivery. Our standard delivery times are typically within 2 working days. However, please allow for additional time during peak seasons, bank holidays or unforeseen circumstances.

Tracking Your Order: Once your order is dispatched, you will receive a confirmation email along with tracking details, allowing you to monitor the progress of your delivery.

Delivery Partners: We work with trusted delivery partners to ensure your orders are handled with care and delivered to you securely.

International Delivery: Currently, we only offer delivery within the UK. For international orders, please contact our customer service team for assistance.

Should you have any further questions or require assistance regarding your delivery, please do not hesitate to contact our customer service team. Thank you for choosing us. We look forward to serving you.

Note: Delivery information is subject to change. Please call us for the most up-to-date information.

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