I can recommend: Brico
Yesterday we had a problem with a major leak from our water boiler, we knew that a friend had had a similar problem and contacted her. She provided the name of the Brico in La Florida opposite The Abbey. One simple phone call and we went to the store to purchase a new boiler and to have installation arranged by the store. The installer arrived in less than an hour and removed the old boiler ( which he disposed of for us ) installed the new one and explained the operation of the boiler. Delighted with the service both at the store ( we were looked after by Neil ) and from the installer, cannot recommend them highly enough.