Plumbing
Plumber in Castelldefels
We install and renew water pipes and drains, electric water heaters, reverse osmosis systems and water softeners, and we service water pumps. From a small repair to the complete installation for a home or a residents’ community.
- A family trade spanning two generations
- The same team from start to finish
- Free, no-obligation quote

What we do
Plumbing services
Properly done installations to avoid leaks, damp and nasty surprises.
Water pipes and drains
New installations and pipe replacement in homes, premises and renovations.
Electric water heaters
Installation and replacement of water heaters for hot water.
Water meter manifolds
Renewal of water meter manifolds in homes and residents’ communities.
Osmosis and water softeners
Systems to improve water quality and protect your installation.
Water pumps and pressure switches
Pump servicing and installation or replacement of pressure switches.
Appliances
Water and drain connections for washing machines, dryers and dishwashers.
When to call us
Signs your plumbing needs checking
- There are damp patches or drips.
- Water pressure has dropped or is irregular.
- Drains are slow or smell bad.
- Hot water takes a long time to arrive or the water heater is playing up.
- There is a lot of limescale on taps, shower screens and appliances.
- The water pump switches on by itself or makes noises.

Our work
Renewing a water meter manifold
We replaced an old, deteriorated water meter manifold with a new, tidy and leak-free installation.
How we work
From your first message to the finished job
One team from start to finish and direct communication at all times.
- STEP 1
Tell us what you need
On WhatsApp or by phone. If you can, send us photos of the area.
- STEP 2
We take a look with you
We visit the space, explain the options and answer your questions.
- STEP 3
Quote and work
We send you a clear quote and, if you accept it, we get to work.
Frequently asked questions
Your most common questions about plumbing
What is the difference between reverse osmosis and a water softener?
A reverse osmosis system filters water for drinking and cooking, usually through a tap in the kitchen. A water softener reduces limescale in the water for the whole installation, which protects pipes, taps and appliances.
Do you install and replace electric water heaters?
Yes. We install new water heaters and replace old ones.
Do you work for residents’ communities?
Yes. For example, we renew water meter manifolds.
Do you do small repairs?
Yes. As well as complete installations, we handle repairs in homes and premises.
Which areas do you cover?
We work in Castelldefels, Gavà, Viladecans, Sitges, Baix Llobregat, Garraf and Barcelona. If your project is somewhere else, just ask us, with no obligation.
You may also be interested in
Need a plumber in Castelldefels?
Tell us what you need and we will prepare a free, no-obligation quote. We work from Castelldefels across Barcelona and the surrounding area.
+34 616 079 814instalacions@marin57.cat
