Buying aluminium patio covers in the UK is a bit of a tough task. There aren't that many brand names that supply and install these aluminium awnings. Of course, one can always buy these things off the internet and have it shipped. For instance, one can get Alumawood patio covers which are just about. In the UK, there are others like Thule and TJNS Products, where buyers can get patio covers. Read this article which compares the prices of aluminium patio covers.
Alumawood has a wide range of aluminium patio covers, window awnings and door canopies. They can ship to buyers as a DIY kit, which can be put up quite easily. Their patio covers include a standard W panel design outdoor patio to two different models for an outdoor patio cover that make the metal awning look like a wooden one. Alumawood patio covers are priced around $9.60 per sq.ft. It's an American company, so their pricing and delivery mechanisms are based on what US customers want. The point here being that customers in the UK may have to pay extra over the per square foot price for shipping. Therefore, there are patio DIY kit sellers who can provide the same Alumawood patios directly to UK customers.
For those willing to DIY, there are DIY sites like Try-tech.com, or dedicated patio sites like Patiokits.com. It's not hard to get hold of local suppliers in the UK, either. All that it needs is for the customer to know the size, or measurements, needed for the patio cover. Depending on the size, a full patio kit for a standard W-panel model will be priced at in between $999 to $3,399.
Thule has a range of branded patio covers and awnings for different uses, and it supplies them directly to customers in the UK. Depending on what comes with it, a motorised Thule Omnistar 8000 patio cover model can cost anywhere from £883.63 to £1,846.82. The options include an integrated 230V motor, or an anodised model. A cheaper model will be the Thule 5003, priced in between £530.78 and £875.09.
TJNS Products has a few select aluminium awnings for sale in the UK. The cheapest one is an awning priced at 169.95 GBP (shipping and handling charges extra). It's a sturdy patio cover capable of resisting a cat-12 typhoon.