Technical Inspection and Diagnosis
Identify problems before they become emergencies.
From €650
Facts you should know
- 1
Over 70% of the Portuguese housing stock was built before 1990, before modern thermal and seismic regulations. Many of these buildings harbour silent construction defects that only a technical diagnosis can identify.
INE / Census 2021
- 2
The average cost of repairing defects detected late is 3–5× higher than timely intervention, frequently exceeding €10,000 in pre-1980 buildings.
LNEC, 2022
- 3
Only 12% of Portuguese property owners have had a technical inspection in the last 5 years, despite 40% reporting visible signs of degradation.
Ordem dos Engenheiros, 2023
How the Process Works
Step-by-step guide: from legal obligation to final certificate
- 1
When to commission
Recommended for any property older than 20 years, before planning maintenance or refurbishment works, or when visible signs of degradation appear (cracks, staining, settlement).
On demand - 2
Inspector assigned
InspectOS assigns a qualified building engineer to perform the full technical survey. All inspectors are registered with the Ordem dos Engenheiros.
After booking - 3
Full technical survey on-site
The inspector conducts a systematic visual inspection of the entire property (structure, facades, roof, installations and finishes), identifying anomalies, degradation patterns and potential root causes.
2–3 hours on-site - 4
Technical report with action plan
You receive a structured report with risk matrix, root-cause diagnosis, photographic evidence, and a phased intervention plan (immediate, short-term, medium-term). Delivered within 48 hours.
Delivered in 48 h
Frequently asked questions
- It includes a full visual survey of the property interior and exterior, identification of construction anomalies and degradation signs, risk assessment by priority, technical diagnosis with likely root causes, and a phased action plan by urgency.
- The pre-purchase inspection is aimed at buyers and focuses on overall condition to support a purchase decision. The Technical Inspection and Diagnosis is geared towards owners or property managers who already own the property and need a detailed diagnosis of existing defects, with prioritisation and an intervention plan.
- Yes. You can book both services in the same request for a more complete assessment when infiltration or condensation issues are suspected.
- The site visit takes 2–3 hours depending on property size and complexity. The full technical report with risk matrix and recommended next-steps plan is delivered within 48 hours of the visit.
Know the real condition of your property
Technical report in 48h. Action plan included.