Comparator · decide in 5 minutes

With expert vs. DIY

Do your reception alone to save 600 €, or appoint an independent expert? Cost, defect detection rate, legal value of the minutes, post-reception risks: the raw comparison, with no spin.

Quick comparison
Scroll for the detail.
Option A · supported
With independent expert
Trained eye · structured report
Option B · alone
DIY
Zero fees · full responsibility
Critère 01
Cost of the service
480 to 880 € incl. VAT for a single-family house. Provisional+final pack: 750 to 1 200 €.
0 € — but count your own time (8 to 12 h prep + visit).
Critère 02
Average defect detection rate
<strong>30 to 80 reservations</strong> on a new single-family house. Includes defects invisible to an untrained eye.
<strong>5 to 15 reservations</strong> on average. Technical defects (waterproofing, thermal bridges, insulation flaws) are almost always missed.
Critère 03
Required technical knowledge
None on the client side. The expert brings civil engineering, Belgian standards (EPB, NBN), site experience.
Very extensive: DTU, waterproofing standards, electrical compliance, ventilation, structure. A few days of reading is not enough.
Critère 04
Legal value of the minutes
Minutes drafted to professional standards, timestamped photos, precise and enforceable descriptions. Holds up before the business court.
Legally valid minutes but often imprecise. Risk of reservations rejected in case of dispute (« non-substantial aesthetic defect »).
Critère 05
Stance toward the contractor
Balanced power dynamic. The expert speaks « the same language » as the site manager. Reservations negotiated on technical ground.
Strong information asymmetry. Without counter-expertise, you accept what the contractor presents as « normal » or « within tolerances ».
Critère 06
Post-reception dispute risk
Divided by 3 to 5 according to our internal statistics (8 years of practice). The majority of defects are detected before signing.
High risk. Defects discovered 6-18 months after moving in, when the two-year warranty is about to expire.
Critère 07
Total time to spend (you)
3 to 5 h on visit day + 30-min prior briefing. That is all.
8 to 12 h of prep (checklists, standards reading, research) + 4 to 6 h of visit + drafting of the minutes.
Critère 08
ROI if major defect detected
Immediate return on investment if a single major defect is raised (e.g. roof waterproofing avoids 8 000-15 000 € of later works).
No direct ROI, and no guarantee of detection of high financial-impact defects.
Cas d'usage

Which option for your situation?

New house
I am receiving a new single-family house in 3 weeks
Independent expert strongly recommended — ROI is almost always positive.
VEFA flat
I am receiving a standard 90 m² VEFA apartment
Expert recommended. Otherwise, allow at least 15 h and use a professional checklist.
Renovated studio
I am receiving a renovated 35 m² studio without structural work
DIY is feasible, but buy a template PV from an expert (50 €) beforehand.
Existing dispute
I already had friction with my contractor during the works
Expert mandatory. The power balance can no longer be restored without a technical third party.
illustration · expert vs DIY reception
Verdict

An expert is not a luxury — it is the technical insurance of your investment.

Doing your reception alone is technically possible, and it is your strictest right. But it is a risky bet: without technical training in construction, you will let between 60 and 80 % of detectable defects pass. On a new 300 000 € house, those unraised defects represent on average 4 000 to 12 000 € of remedial works on your bill within 24 months.

The independent expert costs 600 € on average for a house. Over 8 years of practice, we estimate they detect 3 to 5 times more defects than an owner alone, and that a single one of these major defects (waterproofing, insulation, connections) is enough to make the service pay for itself hundredfold.

Our recommendation: an expert is essential as soon as the value of the property exceeds 100 000 €. Below that, a template PV bought from an expert (50 €) combined with 15 h of preparation can be enough for a simple property.

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