You send the field data. We prepare the deliverables agreed in the proposal.
The certifying technician reviews, calculates, signs and files.
The problem
You're a certifying technician. Your job is to sign, not to lay out reports.
But every certificate eats up hours of mechanical work.
Taking field data, organising photos, drawing sketches and cataloguing rooms. Time depends on the property and the technician’s method.
Entering each enclosure, each opening, each installation. Verifying thermal transmittances, surfaces, orientations. Mechanical and repetitive work.
Laying out the PDF, inserting photos, completing tables and preparing recommendations from validated data.
Preparing the XML, uploading it to the electronic registry, waiting for validation. Yet another procedure that eats up your time.
The solution
You send field data and we prepare the included deliverables. XML, format, software, version and schedule are confirmed in the proposal.
Photos of the property, measurements or sketches, and an audio or text describing the project. What you already do during the visit.
→Once data is complete, we prepare the deliverables within the agreed schedule. XML is included only after software, version and compatibility are confirmed.
→You review all data, import where appropriate, run the calculation, correct what is needed and generate the final file. Filing and signature remain your responsibility.
What's included
Technical sample
Anonymised technical sample using example data. It illustrates format and workflow; it does not prove signature, filing or administrative acceptance.
Key differentiator
Where included in the proposal, we prepare a working XML for the stated schema, software and version. The technician validates data, calculates and generates the final file.
The download is an illustrative sample, not an import file. A validatable delivery is generated for the agreed schema and version · See the CTE XML Viewer
XML sections depend on scope, complete data, agreed schema and version; the sample shows possible fields, not a universal content set.
Compatibility is confirmed only for the software and version stated in the proposal. Technical validation does not guarantee administrative acceptance · See the CTE XML Viewer from IETcc-CSIC
Why us
Workflow process
You make the visit to the property. You send us photos, measurements, and a description by audio or text.
You receive the included deliverables once data is complete and within the proposal schedule.
Where appropriate, you import the working XML into the agreed version, review all data, calculate and export the final file.
The technician checks the current procedure, submits the final file and answers any requirements. Acceptance and timing depend on the authority.
Start now
Send the data and software version. We will confirm scope, price, reviews and date before starting; nothing is considered ready to sign without your validation.
Or email us directly: studio@eficiencial.com · +34 674 786 386
CE3X Guide
CE3X is listed by MITECO among the simplified procedures for certifying existing buildings. Our service can reduce preparation work where XML is feasible, data is complete and software and version have been confirmed.
The usual certification process is laborious: the technician visits the property, takes data on the thermal envelope (walls, roofs, floors, openings), the thermal installations (heating, cooling, DHW), and the building's geometric conditions. Then they manually enter each data point in CE3X: each enclosure with its thermal transmittance, each opening with its solar factor, each installation with its performance.
Where contracted and feasible, the working XML contains the fields agreed for the confirmed schema, software and version. The technician must review data and values, run the calculation, resolve issues and export the final file.
The technician checks and follows the current procedure in the relevant autonomous community. In the Canary Islands, the Government’s electronic office publishes the applicable registration procedure. Where schema and version are compatible, the XML can be checked in the CTE XML Viewer from the Eduardo Torroja Institute (IETcc-CSIC) as a prior technical control; that check does not guarantee administrative acceptance.