# Frequently asked questions > Answers to frequently asked questions about DEHAAS: costs, working area, the Welding & Quality Assistant, inspections, qualifications and certification. Source: https://dehaasprojects.com/en/faq/ Updated on: 2026-11-04 Below you will find the questions clients ask us most often about our services and the Welding & Quality Assistant. If your question is not listed, feel free to ask it directly. - Direct answers to the most common questions - About costs, working area and approach - About the Welding & Quality Assistant - Question not listed? Ask it directly ## About DEHAAS DEHAAS is an independent welding consultancy based in Menaam (Friesland), working for steel construction, machine building, shipbuilding, process industry and pressure equipment across Europe and North America. Core services: welding engineering, welding coordination, weld inspection, QA/QC and qualification projects. ## Frequently asked questions ### What exactly does DEHAAS do? DEHAAS is your external department for welding technology and quality assurance: welding engineering, external welding coordination, weld inspection, QA/QC support, WPS and WPQR projects and guidance towards EN 1090 and ISO 3834. ### What is the Welding & Quality Assistant? An online assistant where you ask a welding question directly. You quickly receive a first indication. Formal conclusions are always reviewed by an experienced specialist before you receive them. ### Is the assistant's answer a formal approval? No. The assistant provides a first technical indication. Formal reviews, qualification ranges and releases always come from a specialist who has examined your file. ### What does a first question cost? Nothing. Only when a specialist performs a formal review or on-site work is needed do you receive a clear proposal in advance. ### Does DEHAAS work internationally? DEHAAS works throughout Europe and North America, and abroad for vendor inspections and expediting at your suppliers. ### Can DEHAAS act as our external welding coordinator? Yes. DEHAAS fulfils the role of responsible welding coordinator according to ISO 14731, permanently or on call, matching your execution class and certification. ### Does DEHAAS also work to ASME? Yes, alongside the European standards (EN ISO 15614-1, EN 1090, ISO 3834) we also support qualifications and reviews according to ASME IX. --- DEHAAS Inspection, Manufacturing & Welding Consultancy, Rypsterdyk 2, 9036 JG Menaam. Phone 06 29 72 37 91, e-mail cdehaas@dehaasprojects.com, https://dehaasprojects.com.