Alsaif Gallery guarantees Edison products for 3 years from purchase, as long as you hold a valid invoice that matches the product. Other brands carry the warranty of their authorised agent. At checkout you can add an extended warranty, costing a set percentage of what the appliance costs.
Cover extends to defects in materials and manufacturing, but not to breakage, scratches, liquid damage or misuse. If a used appliance breaks down in its first 7 days, it is not swapped on the spot: it is sent to an authorised service centre, where the inspection can last as long as 14 working days. Repairs carried out are guaranteed for 30 days after handover.
Source: Alsaif Gallery: Warranty policy