Viessmann 7833029 Safety valve 3bar (571HW)

We pass your order to our approved supplier to process, orders are processed Monday-Friday. You’ll then receive notification either by SMS, email or telephone with delivery instructions shortly before delivery is due. The method of contact will be dependent on the delivery time frame.

As above, you’ll receive notification either by SMS, email or telephone with delivery instructions shortly before delivery is due. The method of contact will be dependent on the delivery time frame.

The timescale for your delivery is shown on the lorry icon which can be seen next to the particular product on our website and in our publications. Delivery should take place within the number of working days shown.

Delivery normally takes place Monday - Friday between 8am and 6pm and the supplier will contact you directly as detailed above.

Whilst it is not usually possible to amend or cancel an order after submission, if you’ve not yet received your delivery notification from our approved suppliers or delivery of your order, we may be able to assist you.

Please Contact Us as soon as possible with your order details and request.

Firstly, please check the expected delivery timeframe for your individual product, this indicates when the order should be delivered. If you’ve received a delivery date and this has not happened or your order is now outside the given timeframe please call us on 03330 112 112.

For any other delivery enquiries please call us on 03330 112 112 where we will be able to help you.

Please check that you’ve received all the items you have ordered. This will be shown on the delivery paperwork. If your order or products are damaged or incorrect, please where possible take photographs of any damage or if an incorrect item has been received as this may be required to help speed the resolution up.

Please contact us as soon as possible with your order reference and full details of the products involved and the issue encountered. Our team can then contact the approved supplier to get the problem fixed.

There are 2 ways in which you can return items that have been delivered direct from one out approved suppliers.

Some of these items can be returned to your nearest Screwfix store, other items require collection and you can do this by calling us on our freephone number 03330 112 112.

For the most up to date returns information for your item please visit the product page on our site and this information will be in clear red messaging.

Please note – Some items are excluded from our 30 day money back guarantee. This could be items that have been made to order or cannot be returned for sanitary reasons. If your item is unwanted, depending on the circumstances, the return may incur a charge (max of £20).

All orders delivered from our approved suppliers require you to sign and check the goods upon delivery, for this reason, we are unable to accept delivery or returns of any products delivered by our approved suppliers into our stores.

Most of our approved suppliers deliver to the UK mainland only; however, a small number of our approved suppliers are able to deliver to offshore addresses within the UK. If this option is available, this will be highlighted on the individual product description online.