Professional services: Building inspection after an earthquake, house acceptance inspection, construction quality inspection, technician's workmanship, structural inspection before buying a second-hand house, condo acceptance inspection, building design, construction supervision, inspection of old buildings, assessment of strength of old buildings, building modification, extension, building reinforcement, building behavior inspection, assessment of stability of all types of buildings, certified by expert engineers, construction disputes, construction quality problems, contractor abandonment problems, inspection according to engineering standards, construction cost assessment, building repair costs, damage costs from substandard construction, building fires, house fires, building fires, inspection of building fire conditions, repair cost assessment according to academic principles by a team of engineers.