Plumbing
Pipes, taps, drainage and heating/cooling.
Two valves that are almost never seen but protect the plumbing installation: what each is for and when to install them.
Electric water heater, gas water heater or combi boiler: differences in installation, space needed and running cost.
Each air-conditioning system has a different installation cost and aesthetic impact. Differences between split, multisplit and ducted to guide the quote.
Annual preventive maintenance of an air conditioner is not just cleaning filters. What tasks it includes and why it's worth offering as a recurring contract.
The concealed cistern gains visual space but requires a prior built-in housing. How it differs from the traditional close-coupled cistern and when to choose each.
Miscounting cold, hot and waste points is a common cause of plumbing quotes falling short. A practical guide by room.
Guideline plumber hourly rates by type of work, travel and emergency, and what to include in the quote.
Copper and multilayer are the two most common options for plumbing networks in homes. Differences in price, installation and durability.
Spain's thermal installations regulation (RITE) requires certain hot water and heating pipes to be insulated. Which sections, and how much it adds to the quote.