By Linus Palmqvist, Head of Operations Reviewed by Simon Nilsson· Last reviewed
Yes. Madrid tap water has a good reputation among people who live here, and it is treated to the same national standards as the rest of Spain. The one thing we will not do is give you a hardness number, because the figures floating around online contradict each other.
Madrid's tap water meets Spain's national drinking water standards and is monitored by the water company, the region's health authority and the national database. Drinking it straight from the tap is completely normal here, and Madrid is one of the few Spanish cities where you rarely hear the taste complained about.
Canal de Isabel II supplies most of the Community of Madrid, not just the city, and the water reaching a town on the edge of the region is not necessarily identical to the water reaching a flat in the centre. As everywhere, the rules reach your tap but the company is only responsible as far as the pipe entering your building.
Get the real number for your own municipality
Canal de Isabel II publishes the average values for the water it supplies, municipality by municipality. That is the figure worth having, and it is more useful than anything an article can tell you about "Madrid water".
Canal de Isabel II runs a viewer showing the annual average results for each municipality it supplies. Its water quality pages are available in English, which is unusual for a Spanish water company.
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Cross-check on the national database
SINAC shows whether your supply zone is currently classified as suitable for consumption, when it was last sampled, and anything outside the permitted range.
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Then look at your own building
Madrid has a lot of older housing stock. A building with a storage tank, or a flat that has stood empty, tells you more about what comes out of your tap than the municipal average does.
Who supplies water in Madrid
It supplies the city and most of the wider region. As everywhere in Spain, you do not choose it and you cannot switch away from it. If you live in a municipality on the edge of the region, check your last bill rather than assuming Canal serves you.
Canal de Isabel II
Canal de Isabel II
A public company owned by the Community of Madrid and the municipalities it serves
English website only
Can you deal with them in English?
Canal de Isabel II publishes a genuine English version of its corporate and water quality pages, which puts it ahead of most Spanish water companies. What we could not confirm is whether you can complete the whole process, or resolve a problem, with an English-speaking person. Treat the English website as a good sign rather than a guarantee, and expect the transaction itself to run in Spanish.
We checked the major water companies across Spain and marked which ones actually deal with customers in English. See every city in the table .
Two things worth knowing about Madrid water
One is about a number everyone quotes and nobody sources. The other is a quirk of how Canal handles a change of name.
Why we will not tell you how hard Madrid water is
Madrid is widely described as having very soft water. We went looking for the figure behind that and found published numbers that disagree with each other by a factor of ten, mostly on websites selling water softeners. Canal de Isabel II does not publish a single headline hardness figure at all, it publishes averages per municipality. So rather than repeat a number we cannot stand behind, we would rather point you at the viewer that gives you yours.
A name change can be treated as a new contract
Canal may handle a change of holder administratively as ending the previous contract and creating a new one in your name, rather than simply editing the existing one. Its terms also state that the previous customer stays responsible until the company is notified, which is the practical reason not to leave this sitting for a few months after you move in.
Limescale is a maintenance question, not a safety one
Wherever your water sits on the hardness scale, scale on a kettle or a shower screen is about appliances rather than health. If it bothers you, the fix is a softener plumbed into the property, which needs the owner's agreement if you rent.
Just moved into a Madrid flat?
Get the last water bill from the landlord, seller or agent and photograph the meter with the reading visible on the day you take over. Then get the contract moved into your name, which Canal handles online. Leaving it in the previous occupant's name is how bills end up unpaid at an address you have never lived at.
We deal with them for you
We contact your local water company and get the bill moved into your name, in English.
Works whether the water is running or has been switched off
Free, and we earn no commission on water
We will offer to check your other bills, which is how we make our money
Yes. It meets Spain's national drinking water standards and is monitored by Canal de Isabel II, the regional health authority and the national database. Drinking it from the tap is completely normal in Madrid.
Madrid has a reputation for soft water, but the published figures online disagree with each other sharply and many of them come from companies selling water softeners. Canal de Isabel II publishes average values per municipality instead of one citywide number, so use its viewer to get the figure that actually applies to you.
Taste is subjective, but Madrid is one of the Spanish cities where residents complain about it least. If you do notice chlorine, that is the disinfectant that keeps the water safe on its way to you, and leaving a jug uncovered in the fridge reduces it.
Canal de Isabel II, a public company owned by the Community of Madrid and participating municipalities. It supplies the city and most of the region, and you cannot choose or switch away from it.
Its corporate and water quality pages have a real English version, which is better than most Spanish water companies manage. We could not confirm that an agent will handle your case in English, so plan for the transaction itself to run in Spanish.
Canal de Isabel II handles the change of contract holder online. Have the last bill, proof that you own or rent the property, and your bank details ready. Note that Canal may process it as closing the old contract and opening a new one in your name.
Still have questions?
We will sort the water bill while you unpack
Free, in English, whether the water is running and the contract just needs your name on it or the supply has been switched off and needs reactivating. We make our money on electricity and internet, and we will offer to look at those too.
Linus moved from Sweden to Málaga in 2021 and set his own home up here, so most of this he has already done the hard way once. Before Settlewell he spent years at Workwide, the cross-border recruiter that has helped over 10,000 people into jobs abroad, latterly as its Head of Recruitment and Operations. He speaks Spanish, lives in Málaga with his partner, and spends his days on the phone to Spanish providers.
Reviewed by Simon Nilsson, Founder & CEO·Last reviewed
Where this comes from
Written from the water company's own published information, Spain's national drinking water database and regional water data. Water quality and drought status change, so check the official sources below for the current position.
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Tap water in Madrid
Canal de Isabel II
