Concrete slab waterproofing in Gueliz
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.
For concrete slab waterproofing in Gueliz, you don’t need a company that does ‘a bit of everything’. We waterproof terraces every single week: free diagnosis, itemised written quote within 24 hours, and the price you read is the price you pay. Full stop.
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.
Concrete slab waterproofing in Gueliz: the job
Concrete slab waterproofing in Gueliz starts with the substrate diagnosis: condition of the old membrane, falls, drains, upturns. Only then comes the application of a system suited to the Marrakech climate. On a concrete slab the critical point is cracking: crack treatment, bonding primer, reinforced membrane over all junction zones. The indicative cost is 180–350 DH/m²; after the free survey you receive the firm price in writing, valid and locked.
What it costs: 2026 prices
| Work | Indicative price 2026 | Notes |
|---|---|---|
| Concrete slab waterproofing | 180–350 DH/m² | turnkey, finish included |
| No-demolition terrace waterproofing | 180–280 DH/m² | same service, different work |
| Riad roof-terrace waterproofing | 200–420 DH/m² | same service, different work |
| Earthen (pisé) terrace waterproofing | 250–420 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.
The Gueliz context
Gueliz, the new town laid out in the Protectorate era, is dense with 1930s–70s apartment buildings: ageing concrete slabs, technical roof terraces shared between co-owners, cracked parapets and original bituminous waterproofing that has often never been replaced. This is the district of co-ownership files: who pays, when to intervene, how to coordinate the top-floor flats. We manage the whole job there, from the shared diagnosis to the report for the building manager, with flame-free systems suited to occupied buildings. Gueliz summers regularly top 45 °C: black membranes baked by the sun crack open, and the first November rain exposes every defect.
For concrete slab waterproofing in Gueliz, the survey is free and the quote firm: you know exactly what you pay before we start, and the warranty is in writing.
How we work: four steps
Free survey in Gueliz
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 Gueliz
“They re-waterproofed without demolishing: no rubble in the stairwell, a tidy site every evening. The neighbours noticed nothing.”
William G. · Gueliz“Our riad terrace was redone respecting the Medina’s constraints: materials carried in by hand, parapets rebuilt, zellige preserved. True specialist work.”
Charlotte V. · Gueliz“Serious people: protection everywhere, deadlines kept, and the terrace handed back cleaner than they found it.”
Isabelle C. · GuelizFrequently asked questions: Concrete slab waterproofing in Gueliz
Expect 150–420 DH/m² depending on the system: liquid membrane 140–220 DH/m², bituminous 180–350 DH/m², traffic resin 220–380 DH/m². An 80 m² terrace is usually treated for 15,000–30,000 DH: the exact figure comes after the free survey.
With a properly applied system and upturns at the right height, 15 to 20 years. What kills roofs here is fast application: a single coat, low upturns, clogged drains. We warrant our works in writing, up to 10 years.
Not necessarily: if the substrate is sound, we apply the new system over it after preparation (specific primer). If it sounds hollow or moves, it has to be rebuilt: we show you both cases with two prices, and you decide.
Yes: earthen and timber substrates, pedestrian alley access, ADER/UNESCO constraints. We use light, flame-free systems and hand-carry materials, and we know the rules for preserving the roofline.
Let’s talk about it on site in Gueliz
Every terrace starts with a real measurement. Message us on WhatsApp: we come and look at your roof in Gueliz, free of charge and without obligation, and leave you a firm written price.
+39 351 481 6739