Definitions Found:
person who installs gas pipes and apparatus in buildings
- gasmanperson who installs gas pipes and apparatus in buildings
- gasmenperson who installs gas pipes and apparatus in buildings
- plumbersA person who installs and repairs the pipes and fittings of water supply, sanitation, or heating systems
- architecta person who designs buildings and advises in their construction
- architectsA person who designs buildings and in many cases also supervises their construction