R. & B. Sims offer Design, installation, testing and maintenance of the following services:
| Lighting |
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| Power |
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| Emergency Lighting |
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| Fire Alarms |
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| Computer Installations |
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| Fibre Optics |
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| Data Infrastructure/Wiring |
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| Domestic Installations |
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| Commercial Installations |
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| Industrial Installations |
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| ECA Specialist |
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Competent Person for Part P of the Building Regulations |
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