Inspections and certifications
Aluminous cement test
Laboratory
Analysed at the UPC
Each sample is analysed at the UPC materials laboratory.
Samples
We take them
Up to 3 samples, with no false ceiling, are taken by the technician on the visit.
Report
Know what to do
With the optional report, we interpret the result and tell you the next steps.
What it is
What is the aluminous cement test?
Aluminous cement was used in many floor joists made between the 1950s and the 1970s. Over time and with damp, that concrete can lose strength: this is known as aluminosis. The test detects whether a joist contains aluminous cement; it is the first step to knowing whether the floor needs monitoring or strengthening.
A positive result does not mean there is aluminosis. The test tells you whether the joists analysed contain aluminous cement. To know the condition of a building’s structure you need a wider study: a test opening plan.
When you need it
- You are buying a flat in a building from that period and want to know before signing
- The community or the ITE recommend checking the floors
- You are renovating and want to know what the structure is like before you start
- You see cracks, rust stains or pieces of concrete coming away from the ceiling
Is it for a whole building? Then what you need is a test opening plan: preliminary inspection, search for the original project in the municipal archive, drawings showing each opening, on-site assistance while a builder makes the openings, analysis at the UPC and a single final report with recommendations for the repair. Write to us and we will send you a quote.
What it includes
What it includes and what it costs
In Barcelona, the test with one sample costs €315 + VAT, and each extra sample €105 + VAT. Outside Barcelona, travel to the municipality is added; the quote tool gives you the exact price.
Visit and sampling
€95 + €20 per sample, plus travel. Up to 3 samples with no false ceiling are taken by the technician; we only need a tall ladder.
Phenolphthalein test
Included. It checks on the visit whether the concrete in the joists is carbonated.
Aluminous cement test
€85 per sample. Carried out by the UPC materials laboratory.
Laboratory handling
€90. We take the samples, handle the analysis and send you its results report.
Conclusions report
Optional, €90. We interpret the result and tell you what to do, including how to repair the openings.
Repair of the openings
Not included: the technician does not close the openings, a builder you pay does. With more than 3 samples or a false ceiling, a builder you hire also takes them; we send you their quote when you accept the proposal.
How we work
From quote to result
You pay 50% on acceptance and 50% the day after sampling. The laboratory’s timescale does not depend on us: ask us first if you have a signing date. If you add the test to a pre-purchase or construction inspection, we take the samples on the same visit and you save the visit and travel.
1. Quote
You get it online in a minute and receive the proposal as a PDF.
2. Sampling
A technician from the practice checks the floor, takes the samples and carries out the phenolphthalein test.
3. Laboratory
We take the samples to the UPC materials laboratory and send you its results report.
4. Conclusions
If you ask for it, we interpret the result and recommend what to do, including how to repair the openings.
Frequently asked questions








