CoverageReading time: 2 minutesUpdated: 5 November 2026
DEHAAS works from Menaam in Friesland throughout the Netherlands, including South Holland. South Holland is the centre of Dutch process industry and shipbuilding: the port of Rotterdam with refineries and chemicals, the maritime manufacturing sector around Dordrecht and Vlaardingen, and considerable equipment manufacturing.
South Holland is a two to two and a half hour drive; assignments are planned per day or in blocks. Much of the work needs no site visit at all: a procedure review, an assessment of welder qualifications or a question to the Welding & Quality Assistant works perfectly well remotely.
1. Industry in South Holland
South Holland is the centre of Dutch process industry and shipbuilding: the port of Rotterdam with refineries and chemicals, the maritime manufacturing sector around Dordrecht and Vlaardingen, and considerable equipment manufacturing. The working area within the province includes Rotterdam, Den Haag, Dordrecht, Vlaardingen and Gouda.
That industrial profile shapes the questions that arise here. Where a steel fabricator wrestles with execution classes and the FPC system, an equipment manufacturer deals with a notified body and a machine builder with distortion and dimensional stability. DEHAAS works for all three.
2. Which standards matter most here
Almost every framework converges here: the PED and EN 13445 for equipment, EN 13480 and ASME B31.3 for piping, class rules for shipbuilding and NORSOK or operator specifications in offshore projects.
Whichever standard governs, the question is always the same: can you demonstrate the welding complies. That calls for a procedure matched to the work, a qualification record covering the range, welders working inside their qualification and examination reported on time. See all services.
3. What an assignment looks like
Many assignments in this region concern vendor and third party inspection: overseeing on behalf of a client what a supplier delivers, including review of procedures, certificates and the final dossier.
A typical route starts with a half hour conversation about what is at stake, followed by a review of the existing documents. That produces a concrete plan: which qualifications are needed, which documents are missing and in what order that is resolved. Execution follows after that.
4. On site or remote
South Holland is a two to two and a half hour drive; assignments are planned per day or in blocks. Inspection during production, witnessing a test coupon or attending an audit requires presence; document review, procedure writing and advice do not.
That combination keeps cost down: travel is limited to the moments where it genuinely adds something. See remote WPS and PQR review and our approach.
Request a quote
Build your request
A tailored quote in a few clicks. You get an answer from a welding coordinator.
Independently assessed, demonstrably recorded
Frequently asked questions
The questions we are asked most often.
Does DEHAAS travel to South Holland?
Yes. South Holland is a two to two and a half hour drive; assignments are planned per day or in blocks. For inspections, audits and witnessing test coupons we attend on site; document work and advice are handled remotely.
What does a welding inspector on site cost?
That depends on scope and duration. DEHAAS works per assignment with a proposal agreed in advance, so you know where you stand. Request a quotation with a short description of the work.
Can I have just my WPS reviewed?
Yes, that is one of the most requested services. You send the procedure and the underlying qualification record, we assess whether the range is correct, whether the variables are right and whether the document is usable by the welder. See remote WPS and PQR review.
Does DEHAAS work outside the Netherlands?
Yes, across Europe and on a project basis in North America. Reporting in Dutch or English. See vendor inspection abroad.
