RS Electrical & Engineering is an electrical contractor on Sam Leong Road in Kampong Glam, working from the TRIO building. It takes on jobs from home rewiring through to large commercial installations. The firm's list of work covers electrical panels, circuit breakers and lighting, connections for heavy machinery, power and data cable laying and termination, conduit, and CCTV, access control and alarm systems. It also does preventive maintenance, and fits surge protectors, MCBs and RCDs to protect appliances and wiring. It says it has an on-call team around the clock for emergencies, and that every technician is licensed and insured. Its website cites ISO 45001:2018 for occupational health and safety, and a BCA ME05 Level-1 grade certificate. Commercial clients in a building like this one, where small firms and offices share old wiring and tight service spaces, are the ones most likely to need the site assessment the firm offers before any work starts. A recent customer calls it one of the best electrical installation and service companies in Singapore. Among the ten other electricians within a kilometre, it has a perfect 5.0 from three reviews, while A3 Engineering & Construction has 5.0 from 28 reviews and Master Construction & Handyman Services has 4.9 from 108. For a quote, the website has a form that a specialist answers with a free estimate. Our pick in Kampong Glam for an office or shop that needs cabling and security work done in one visit.