Brochure web sites are particularly useful to professions, wholesalers and charities that wish to promote their brand, products or provide services without necessarily taking payments online.
Such sites can be anything from a one or two page "business card" site describing the business and contact details to a full display of an entire product range with specifications and information services.
You will need to build trust. Not always easy when visitors see your website for the first time or do not know you from other contact.
Starting with the right domain name helps. If most of your target market is in the UK then, perhaps obviously, a .co.uk or .uk, preferably both is a good start.
Your website will meet your brand guidelines with a style and appearance consistent with your other sales and marketing materials. It becomes recognisable as yours.
Most website users are aware they should look for https:// and the “padlock” where necessary or desirable and this serves to build confidence that their interaction with you will not be interfered with.
Photos you use whether of products or your premises should be good and clear. Good images can build confidence.
A Google map will help visitors find you if you offer goods or services where you need members of the public to come to you.