Our website is open 24 hours a day, 365 days a year for shopping.
Our office hours are from 9am to 5pm Monday to Friday, excluding public holidays.


Searching for a Product
Pricing Policy
Payment using Sage Pay

Searching for a Product.

  1. If you don’t know the product code of the item, you should search using the search box at the top of the page by entering a description.
  2. Alternatively browse through the various product departments, using the tabs at the top of the product window to identify the desired material.


  1. Warehousing.
    We invest in our own warehousing and hold a range of stock to support domestic and commercial installations.
  2. Stock levels.
    Stock indicators are real-time, showing the quantity of stock held.
  3. Back Order.
    If an item is indicated as 'back order' or you require more than the stock level indicated, lead-time to delivery can be anything from next day to 3 days, depending on stock levels at the main UK warehouse.
  4. Delivery Updates.
    If delivery times are critical, or the item is noted as 'back order,' please call for an up-to date delivery forecast. Top

Pricing Policy.

  1. All prices displayed on this website include Value Added Tax. VAT is identified on a separate line in the 'Shopping Basket.'
  2. Trade prices are displayed to customers when logged into their Trade Account.

Payment Secured by Sage Pay.

  1. Commitment.
    a. Sage Pay is a payment service provider (PSP) to whom thousands of businesses outsource their transaction security.
    b. It is our top priority to ensure customers’ transaction data is kept secure at all times, when buying through Viessmann Direct you can be sure you are completely protected with Sage Pay.
  2. Screening & Security.
    a. Sage Pay uses a range of secure methods such as fraud screening, IP address blocking and 3D secure.
    Once on Sage Pay’s systems, all sensitive data is secured using the same internationally recognised 256-bit encryption standards used by, among others, the US Government, the encryption keys are held on state-of-the-art, tamper proof systems in the same family as those used to secure VeriSign's Global Root certificate, making them all but impossible to extract.
    b. The data held is extremely secure and they are regularly audited by the banks and banking authorities to ensure it remains so.
  3. Checks & Compliance.
    a. Sage Pay’s systems are scanned quarterly by Payment Card Industry Data Security Standards (PCI DSS)which are an independent Qualified Security Assessor (QSA) and an Approved Scanning Vendor (ASV) for the payment card brands.
    b. Sage pay is also audited annually under the Payment Card Industry Data Security Standards (PCI DSS) and is a fully approved Level 1 payment services provider, which is the highest level of compliance.
  4. Session Encryption.
    You know your session is in a secure encrypted environment when you see
    https:// in the web address, and/or when you see the locked padlock symbol alongside the URL.
  5. Standards Council.
    Sage Pay is an active member of the PCI Security Standards Council (PCI SSC) that defines card industry global regulation.
  6. More information.
    More information about shopping securely with Sage Pay can be found here
  7. Clipper Enterprises Limited complies with industry standard PCI DSS security policies

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