Basement and cellar tanking in Medina
Free survey · written quote in 24 h · firm price in writing
Rainy season Nov–Mar · act before the first leakFree quote within 24 hours
Leave your details: we call you back and book the free survey, at no cost and with no obligation.
Medina: we carry out basement and cellar tanking with waterproofing systems proven under the Marrakech climate — extreme summer heat, concentrated rain from November to March. You pay only after reading the quote: free, written and without obligation.
Rainy season Nov–Mar: The Marrakech rainy season runs from November to March: that is when every tired terrace reveals itself. An ignored leak costs up to 10 times the price of waterproofing — damaged beams, lifted tadelakt, mould, repainting — and cuts the value of the property. The right time to waterproof is before the first heavy rain, not after it.
Basement and cellar tanking in Medina: the job
Paint hides, treatment cures: basement and cellar tanking in Medina attacks rising moisture at its source. Negative-pressure tanking mortar on walls and floor: the buried cellar stops drinking the ground’s water and becomes usable. The indicative spend is 250–450 DH/m²; the final figure is written before we start and never changes.
What it costs: 2026 prices
| Work | Indicative price 2026 | Notes |
|---|---|---|
| Basement and cellar tanking | 250–450 DH/m² | turnkey, finish included |
| Below-ground wall waterproofing | 200–380 DH/m² | same service, different work |
| Wall-to-terrace junction sealing | 90–160 DH/m | same service, different work |
| Damp treatment before repainting | 80–160 DH/m² | same service, different work |
| Survey and written quote | free | no obligation, locked price |
Real 2026 price ranges: every roof is different, which is why we only put the final figure in writing after the free survey. And it never changes.
How we work: four steps
Free survey in Medina
We come and measure on site, free of charge and without obligation: membrane condition, falls, drains, upturns and every weak point of your flat roof.
Written quote within 24 hours
You receive an offer itemised line by line: materials, labour, timelines. The price is firm and locked in writing.
Tidy, protected site
We protect stairwells, facades and plants; we work zone by zone and leave the site clean every evening.
Testing and written warranty
Water-tightness test before handover. You leave with a written warranty of up to 10 years and after-works follow-up.
Trusted in Medina
“I was looking for an alternative to full demolition: liquid membrane and the terrace was like new in three days. I wish I had called earlier.”
Thomas B. · Medina“Water came through the living-room ceiling every time it rained. Survey on Thursday, quote the next day, work finished in four days. Not a drop since.”
Robert N. · Medina“For basement and cellar tanking I had three quotes: theirs wasn’t the cheapest but it was the only one itemised line by line. Price respected to the dirham.”
Youssef B. · MedinaThe Medina context
The Marrakech Medina is our home ground: hundreds of riads with centuries-old flat roofs built from earth, cedarwood and lime, where traditional waterproofing — rammed earth layers and tadelakt — is reaching the end of its life. Every job here must respect ADER rules and the UNESCO listing: no hauling tonnes of rubble through narrow derbs, no altering the roofline of the terraces. We use light materials compatible with pisé: flexible resins, flame-free self-adhesive membranes, parapet upturns rebuilt to standard. Leaks in the Medina are unforgiving: they rot the wooden beams, swell the earthen walls and lift the tadelakt off bedroom walls.
For basement and cellar tanking in Medina we bring the same care as on our central Marrakech sites: certified materials, proper application and a clean handover, every time.
Frequently asked questions: Basement and cellar tanking in Medina
Not if the cause is treated: salt neutralisation, barrier against rising damp, breathable finish. Treating saltpetre without treating the rising damp, on the other hand, guarantees its return at the first wet season.
It is the most profitable visit of your purchase: for a few hundred dirhams you know what the walls hide, with a written report that gives you real negotiating leverage — or saves you from a very bad surprise.
From 100 to 300 DH per linear metre of treated wall depending on the technique: injection 100–220 DH/m on concrete or brick, pisé-specific protocol 150–300 DH/m. A riad typically needs 15,000–60,000 DH of treatment.
Rising damp starts at ground level and climbs evenly (up to 1 m and more), often with saltpetre; a leak makes localised stains linked to rain. Our moisture measurements settle it in one visit.
Quote within 24 hours, locked price
One WhatsApp message is enough: for basement and cellar tanking in Medina you receive an itemised offer with no hidden costs. Written warranty on the works, up to 10 years.
+39 351 481 6739