Looking for trusted, English-speaking waterproofing in Lisbon? Locallista connects you with vetted local professionals, ranked by reviews, not by who pays the most. Create a free account to see who they are, read real reviews, and get in touch.
Real, phone-verified reviews from the expat community.
10
Luiz
Lisbon, Aug 2026
I had already worked with David before, so I already knew his work and hired him again for one of my projects. He is remodeling all the electricity in the apartment from scratch, and I do the civil construction part while he installs all the electrical part. He also gives me several smart home solutions for this type of work, so it is a valuable help. Communication is very good, he is polite, and the price feels fair.
9
Laura
Sintra, Oct 2025
I hired Tomas to fix a leaking rooftop terrace. We couldn’t find the source, so we’re re-flooring and waterproofing the whole upstairs deck, enclosing part of it, and adding a retractable pergola. The project is still underway, but communication has been great, an engineer comes by to oversee, and the crew is here every day, responsive and really nice, so I feel like we’re in good hands, though I don’t want to jinx it. It’s a big job and a bit expensive, but so far so good.
10
Ella
Lisbon, Sep 2026
I had plastering, painting and rendering done in Lisbon. I would definitely work with Matt again and recommend him to friends, he is reliable, professional, polite and works to a high quality. Communication was clear and reassuring, and the price felt very fair and good value.
How much does waterproofing cost in Lisbon?
Real price ranges from the jobs our vetted waterproofing contractors actually do. Prices updated August 2026
Balconies and terraces
How much does waterproofing a terrace cost in Lisbon?
Very common in Lisbon, where terrace leaks show up in the flat below. Priced per square metre including the finish.
Typical project
around €550
Per m²
€40 to €60 per m²
Basements
How much does basement waterproofing cost in Lisbon?
Quoted after survey. Among the most expensive waterproofing work because access and drainage both matter.
Quoted after survey
by method
Typical project
around €550
Bathrooms and wet rooms
How much does waterproofing a bathroom cost in Lisbon?
Done under the tiles during a renovation, and impossible to add afterwards without lifting them. Priced per square metre.
Per m²
€40 to €60 per m²
Typical project
around €550
Exterior walls
How much does exterior wall waterproofing cost in Lisbon?
Priced per square metre with access the main variable. Facade work may need council approval in the historic centre.
Per m²
€40 to €60 per m²
Quoted per project
by access
Flat roofs
How much does flat roof waterproofing cost in Lisbon?
Priced per square metre after inspection, and the most common source of leaks in Lisbon flats.
Typical project
around €550
Per m²
€40 to €60 per m²
Foundations
How much does foundation waterproofing cost in Lisbon?
Usually only viable during construction or major works. Quoted per project.
Quoted per project
after survey
Tiled roofs
How much does tiled roof waterproofing cost in Lisbon?
Usually repair and underlay rather than full membrane. Quoted after a look at the roof.
Typical project
around €550
Quoted per project
after inspection
Water tanks
How much does water tank waterproofing cost in Lisbon?
Specialist coatings certified for potable water, quoted per tank.
Quoted per tank
by size
Typical project
around €550
Damp and rising-damp treatment
How much does rising damp treatment cost in Lisbon?
Common in older ground-floor Lisbon flats. Quoted after diagnosis, because the cure depends on the cause.
Quoted after inspection
by cause
Typical project
around €550
Injection sealing
How much does injection sealing cost in Lisbon?
A specialist method for walls and basements, quoted per linear metre after inspection.
Quoted after inspection
by method
Typical project
around €550
Leak repair
How much does a leak repair cost in Lisbon?
Finding the leak is most of the job. Priced per visit plus the repair once located.
Typical project
around €550
Quoted after inspection
once located
Waterproof coating and membranes
How much does a waterproof membrane cost in Lisbon?
Priced per square metre by system. Ask what guarantee comes with it and who honours it.
Per m²
€40 to €60 per m²
Typical project
around €550
Frequently Asked Questions
What expats want to know before hiring waterproofing in Lisbon.
Are there English-speaking waterproofing in Lisbon?
Yes, and more do as the expat community grows. The hard part is knowing who is reliable before you book, so every one we list is reviewed by other expats who have actually used them.
What should I check before hiring waterproofing in Lisbon?
Read recent reviews, be clear about exactly what you need, and agree the scope and an estimate in writing before any work starts. For anything regulated, check they hold the right credentials for the job.
What is the most important thing to know before booking?
Be clear about what you want and get the price and scope agreed up front, so there are no surprises. Reading other expats' reviews is the quickest way to find someone who does the job well and communicates clearly.
What should I avoid when hiring waterproofing in Lisbon?
Avoid paying the full amount up front (a deposit can be fair), anyone who will not give a clear quote, and unusually cheap prices that get padded with extras later.
How do I explain what I need if my Portuguese is limited?
A photo, a short video or a written list does most of the talking, and the professionals we list are used to international clients. Booking an English-speaking one takes the stress out of it entirely.
How do you say waterproofing in Portuguese?
In Portuguese, waterproofing are usually called impermeabilizacoes. That is the word to search for or to ask a neighbour, though many professionals here are used to the English term too.
How do I find waterproofing I can trust in Lisbon?
Check the reviews and any credentials before you book. On Locallista the reviews are phone-verified and the ranking is based on real expat experience, not who paid the most.