--- title: "Outdoor and commercial power in Colliers Wood | 5.0 Star · From £230" description: "Outdoor and commercial power installations by Bello Electrics Ltd across Wandsworth, Fulham, Chelsea, Clapham and Battersea. · 5.0 Star from 145 reviews" canonical: "https://belloelectricsltd.co.uk/services/three-phase-power-installation" --- # Outdoor and commercial power in Colliers Wood > Outdoor and commercial power installations by Bello Electrics Ltd across Wandsworth, Fulham, Chelsea, Clapham and Battersea. · 5.0 Star from 145 reviews Outdoor and commercial power from Bello Electrics Ltd safely connects outbuildings, gates and machinery. We carry public liability insurance and answer calls any time, day or night. ## Outdoor and commercial power starting prices Starting prices reflect standard connection points and baseline protective bonding. Final totals vary with cable run lengths, ground conditions and the capacity of your consumer unit. - Electric gate installation: Price on request - Hot tub wiring: Price on request - Power to a shed or garage: Price on request - Three-phase power: Price on request - Earthing and bonding: from £230; £230 for up to 1 services to bond (gas, water or oil), then £80 per additional services to bond (gas, water or oil). - Cable installation through finished ground, trenching or specialist containment is quoted following an on-site survey. - Earthing and bonding starting rates apply to your initial incoming service pipe, with additional service pipes priced individually. - Hardware such as electric gate motors, garden lighting fittings or specific machinery must be on site before cable installation. - Any required consumer unit upgrades or supply capacity increases from your network operator are assessed and quoted separately. ### Within the agreed scope - Installing steel wire armoured cable clipped direct or ready for prepared trenches - Fitting weatherproof rotary isolators, outdoor sockets and dedicated sub-distribution boards - Connecting main protective bonding conductors to gas and water service pipework - Testing circuit continuity, earth fault loop impedance and insulation resistance - Commissioning new distribution boards with clearly marked circuit directories ### Confirm separately - Ground excavation, trench digging or making good through landscaped gardens and tarmac - Increasing the incoming statutory supply fuse rating or network operator supply capacity - Purchasing consumer appliances, hot tubs or electric gate automation mechanisms - Making good specialist decorative wall finishes after internal cable installation ## Outdoor and commercial power explained Outdoor circuits and commercial connections require dedicated cable sizing, weatherproof switchgear and correct protective bonding to manage heavy electrical loads safely. - **Outbuildings and garden power:** Running electricity to garden offices, workshops or sheds demands armoured cabling buried at correct depths. We connect sub-boards in outbuildings across Wandsworth and Clapham to run heating, power and lighting without overloading domestic consumer units. - **High-demand residential equipment:** Hot tubs, electric entrance gates and external heating units draw significant current that standard house circuits cannot carry. We fit dedicated radial connections with separate rotary isolators and RCD protection tailored to manufacturer specifications. - **Three-phase supplies and commercial units:** Commercial premises, workshops and larger properties in areas like Battersea and Fulham often require 400V three-phase distribution. We configure distribution boards to balance phase loads cleanly across machinery, lighting and kitchen appliances. - **Main protective bonding:** Connecting metallic service pipes such as gas and water to the main earthing terminal prevents exposed metalwork from carrying dangerous voltages during an electrical fault. Upgrading bonding is essential before connecting high-capacity outdoor power. ## What happens on the day Careful preparation ensures cable runs can be installed cleanly with minimal disruption to your home or commercial premises. - **Surveying cable pathways and intake points:** We inspect your incoming supply head, consumer unit and the planned path to the outdoor or commercial equipment. Clear access along internal walls, basements or garden pathways helps us verify physical clearances. - **Isolating supplies during connection:** Connecting new high-capacity circuits or distribution boards requires planned electrical shutdowns. We schedule power interruptions in advance so home routines or business trading can continue with minimal disruption. - **Testing and final switchgear inspection:** Once cables are fixed and connected, we conduct electrical safety tests on every new conductor and verify protective device tripping speeds before energising the system. ## How booking works 1. **Tell us about the job:** Tap Book Now and describe the work in the chat. Photos help. 2. **Get your price:** You see your price in the chat. A set price is paid at checkout; any other job is quoted first. 3. **Choose your visit:** Give your address and when you are free, and the visit is arranged. ## Outdoor and commercial power questions ### Why do outbuildings need steel wire armoured cable? Cables running outdoors or underground must resist impact from gardening tools, wildlife and weather. Steel wire armoured cable provides mechanical protection and a resilient outer sheath, ensuring the circuit remains safe over years of exposure. ### How do I know if my property needs three-phase power? Standard homes run on single-phase 230V electricity. Properties with large commercial machinery, multiple fast vehicle chargers, extensive air conditioning or large electric heat pumps may exceed single-phase capacity and require a 400V supply. ### What is the difference between earthing and bonding? Earthing provides a path for fault currents to safely flow to ground and trip protective devices. Bonding connects incoming metal pipes like gas and water to earth, preventing dangerous voltage differences between pipework and electrical appliances. ### Can a hot tub connect to a normal outdoor socket? Most hot tubs require a dedicated radial circuit run directly from your consumer unit, controlled by a rotary isolator switch placed within sight of the tub. Standard 13-amp sockets cannot safely carry the continuous heating and pump loads. ### Will you dig trenches for outdoor cables? Our work covers running, clipping, terminating and testing electrical cabling. Trenches must be excavated to standard depths before installation, or arranged through groundworks contractors prior to cable pulling. ## Business facts - Service area: Colliers Wood, Tooting, Streatham, Balham, Wandsworth, Putney, Battersea, Clapham, Oval, Brixton, Vauxhall, Pimlico, Chelsea, South Kensington, Mayfaair, Fulham - Hours: Calls answered 24/7 - Phone: +447455213345 - Email: info@belloelectricsltd.co.uk - Insurance: Public liability £5M, Professional indemnity £1M - Qualifications: BS7671; Testing and inspection; Initial verification; EV charging; PAT Test ## Book or ask a question - [Book Now](https://belloelectricsltd.co.uk/#chat) ## Related services - [Emergency electrician](https://belloelectricsltd.co.uk/services/emergency-electrician) - [EICR and electrical surveys](https://belloelectricsltd.co.uk/services/eicr)