1. Why VEKA entry takes so much time
An average EPC file contains between 120 and 180 distinct fields to be entered into the VEKA Energy Performance Database. This ranges from basic address/owner data to wall composition, insulation values, heating, ventilation, solar and heat-pump installation data.
The core issue is that VEKA has no write-API. You cannot push data from another system directly into the portal — everything must be typed manually into the web form. This means every expert, even for a simple apartment, spends 1 to 2 hours on pure data entry.
On top of that, the VEKA portal uses very strict dropdown structures: fields only accept specific fixed values (e.g. VG1, AG1, RV1, RC1). One typo and the field is rejected. Add to this the mandatory photo documentation since IP2025.
This guide systematically explains where the time goes, and what concrete steps you can take to drastically reduce it — without compromising quality or VEKA compliance.
2. The three bottlenecks: data reuse, lookups and photo management
Anyone analysing an EPC file meets the same three time-eaters:
1. Data entered twice
Address, owner, build year, EAN — often already in your calendar, CRM or a quote. Yet most experts retype them into SketchUp, into Excel, into the VEKA portal and sometimes again in the client email. Pure waste.
2. Looking up insulation values and power ratings
R-values, U-values, boiler power ratings, ventilation system efficiencies: these live across technical datasheets, product catalogues and old Excel sheets. Finding one correct value takes 5 to 10 minutes per installation. In one file, you do that 3 to 6 times.
3. Photo documentation since IP2025
Since July 2025, Inspection Protocol 2025 (IP2025) mandates specific photos per file: façades, insulation, installations, meters and serial numbers. These must be grouped per type with correct naming and metadata. Sorting them afterwards on PC loses minimum 20 minutes per file.
Good news: all three bottlenecks are entirely avoidable with the right system. The next chapters tackle them one by one.
3. Solving bottleneck 1: enter once, use everywhere
The biggest win is eliminating duplicate entry. Every field typed twice is a chance for error AND wasted time. Principle: one source of truth per file.
Concrete approach
- Start every file from your CRM or calendar — not from an empty SketchUp file.
- Use a digital tool (like EPC-Expert Pro) that auto-links address, owner, EAN and build year to a new file.
- Ensure data flows from measurement to file automatically — no Excel or SketchUp hops.
- Organise your client communication (quote, confirmation, invoice) so it pulls from the same record.
This alone wins 15 to 20 minutes per file on average. On 10 files per week, that's 2.5 to 3.5 hours pure time recovered.
4. Solving bottleneck 2: installation databases and auto-calculations
The second major time leak is manually looking up and calculating values already recorded elsewhere. Solution: a well-maintained installation database and local auto-calculations.
What a good database contains
- Brands and models of heating boilers with CE power ratings and efficiencies
- Ventilation systems (type A/B/C/D) with airflows and energy classes
- Solar panels and heat pumps with power ratings, COP values and certification data
- Insulation materials (PIR, PUR, EPS, rockwool, cellulose, glass wool) with lambda values and standard thicknesses
- Window frames and glazing with U-values per combination
Auto-calculations that eliminate manual work
- Volumes and net floor areas from floor plan + storey height
- R-values of walls from composition + lambda
- U-values of composite elements (outer wall + insulation + finish)
- Energy labels from E-level, S-level and primary energy use
An expert using a solid installation database saves 20 to 30 minutes per file on lookups. No more googling 'what's the R-value of 14 cm PUR?' — the software answers instantly, and you always retain manual override.
5. Solving bottleneck 3: IP2025 photo documentation with templates
Since 1 July 2025, Inspection Protocol 2025 (IP2025) is in force. Mandatory photo documentation per certificate, with specific categories and minimums.
What IP2025 requires concretely
- Façade photos — every façade, including corners
- Roof build-up — visible insulation in attic, trusses, roof surface
- Floor build-up — cellar, crawl space, visible insulation if accessible
- Window and door types — at least one per type
- Heating installation — boiler, type, nameplate, serial number legible
- Ventilation — unit, filters, labels
- Domestic hot water — storage tank, heat pump, nameplate
- Renewables — solar panels, inverters, meter photos
How never to lose your photos
The IP2025 photo problem isn't taking (5 minutes on site) — it's organising. Photos loose in the camera roll waste minimum 20 minutes per file sorting.
Time-saving workflow:
- Use an iPad or tablet with an app that attaches each photo directly to the right file AND the right field.
- Work with a fixed template of photo categories: the app automatically requests every mandatory photo.
- Let the app auto-embed metadata (GPS, timestamp, field ref) in the filename.
- For each photo: one tap = categorised, no camera-roll intermediate step.
This eliminates later sorting. Time saved: 15 to 25 minutes per file.
6. The VEKA entry itself: dropdowns, checkpoints, sanity checks
Even with bottlenecks solved, the actual VEKA entry remains. Here are concrete principles to go through it efficiently.
Use VEKA's exact field mapping
VEKA uses cryptic codes for certain fields (VG1 = floor on soil, AG1 = adjacent building). Using divergent names wastes time on transfer.
Best approach: use VEKA codes from measurement onward. Every transfer becomes literally 1-to-1.
Respect the tab order strictly
The VEKA web form has a fixed order:
- General → 2. Construction → 3. Installations → 4. Renewables → 5. Photos → 6. Report
Not respecting this triggers validation errors on dependent fields. Let your software or checklist force tab-by-tab work.
Built-in sanity checks
- Sum of net floor areas = total usable area (tolerance ±2%)
- Roof + façade area consistent with volume
- Sum of window areas < 30% of façade
- E-label matches calculated E-level
An expert running these checks before submission gets 70% fewer correction requests from VEKA.
7. What must NEVER be automatic: the final call stays human
Time savings must never compromise your professional responsibility as an energy expert. VEKA expects you to personally examine, evaluate and submit each file.
Concrete principles
- Software can calculate. You interpret.
- A proposed database value must be visually verified on site — nameplate, serial number, visible thickness.
- A U or R-value calculation must match what you saw on site. If it diverges, override manually.
- An EPC label is a professional judgement. Software proposes, you confirm — your name is on the certificate.
- The 'Calculate' and 'Submit' buttons in VEKA always remain manual clicks by you. No bot or software may do this.
A good assistant is therefore not a replacement: it takes over repetitive work, shows proposals, and always leaves you the final call. That's the core principle of EPC-Expert Pro.
8. Concrete time savings: numbers from a practical test
To not base this guide on principles alone, we ran a structured 30-day test in March 2026 with a certified energy expert (Dieter Vanwetter, EP18784).
Setup
- 10 residential files, comparable type (1970-1990 terraced house, 200-280 m²)
- 5 files with classical workflow (SketchUp + Excel + manual VEKA entry)
- 5 files with optimised workflow (iPad + installation database + VEKA entry assistant)
- Measured: time per file from measurement start to 'Submitted' status in VEKA
Results
- Classical: average 3h 50min per file (range 3h 20min — 4h 45min)
- Optimised: average 2h 05min per file (range 1h 50min — 2h 25min)
- Time saved: 1h 45min per file — around ~45%
- VEKA entry alone: from 1h 50min to 14min
Annual impact
An expert handling 150 files per year recovers about 260 hours with the optimised workflow — 6 weeks or 32 extra files at identical margin.
Fastest path to similar wins
The fastest way is a free demo of EPC-Expert Pro where we walk through one of your files together. In 30 minutes you see exactly where the gains sit for your specific workflow. Book a demo →