Our Residential Development Electrical Services
Big Green Electrical delivers complete, end-to-end design, installation, and support services to ensure your residential property receives a perfectly scaled, compliant power backup network.

First-class electrical installation
Modern residential apartment blocks, gated communities, and high-density housing developments depend on continuous, stable electricity to maintain resident comfort, security, and building safety. Even a brief local grid failure can leave essential lifts stranded between floors, disable security entrance gates, shut down communal lighting, and disconnect intercom networks. For developers and landlords, an unprotected building can lead to severe safety risks, resident complaints, and potential regulatory liabilities. Big Green Electrical designs and installs heavy-duty, modular uninterruptible power supply (UPS) systems and high-capacity battery storage solutions built specifically for residential developments. We help housing providers protect critical common areas, passenger lifts, access control networks, and fire safety systems from sudden power cuts and voltage drops. Upgrading your development's power backup infrastructure ensures resident safety and keeps communal facilities fully operational during any local grid outage.
First-class electrical installation
Modern residential apartment blocks, gated communities, and high-density housing developments depend on continuous, stable electricity to maintain resident comfort, security, and building safety. Even a brief local grid failure can leave essential lifts stranded between floors, disable security entrance gates, shut down communal lighting, and disconnect intercom networks. For developers and landlords, an unprotected building can lead to severe safety risks, resident complaints, and potential regulatory liabilities. Big Green Electrical designs and installs heavy-duty, modular uninterruptible power supply (UPS) systems and high-capacity battery storage solutions built specifically for residential developments. We help housing providers protect critical common areas, passenger lifts, access control networks, and fire safety systems from sudden power cuts and voltage drops. Upgrading your development's power backup infrastructure ensures resident safety and keeps communal facilities fully operational during any local grid outage.


Implementing a modern modular backup power system provides your residential development with a reliable shield against grid instability, securing passenger safety and building accessibility.
A sudden power cut that traps residents inside passenger lifts is a serious health and safety hazard. Our online double-conversion UPS systems provide a seamless transition to backup battery power, ensuring that passenger lifts can safely complete their journeys and lower to the ground floor. Additionally, our batteries keep fire detection panels and extraction fans fully operational during emergencies.
Gated residential developments rely heavily on automated gates, secure key fob systems, intercoms, and CCTV networks to protect residents and property. If your building loses power, security gates can jam open or shut, compromising security or blocking emergency vehicles. Our backup systems maintain constant power to security circuits, ensuring complete property safety and controlled access during a blackout.
Older, inefficient backup generators can be noisy to run and require expensive, frequent fuel maintenance. We install advanced modular UPS systems that operate at over 96 percent energy efficiency, drawing minimal power from the grid to maintain their charge. This highly efficient technology reduces the building's overall standby energy loss, lowering monthly utility overheads and estate management fees.
Integrating modern backup battery storage is a practical way to support your building development's sustainability credentials. Because these advanced systems run exceptionally cool and require minimal grid power to stay operational, they reduce the overall environmental impact of your development, helping you secure eco-friendly building certifications.
Big Green Electrical delivers complete, end-to-end design, installation, and support services to ensure your residential property receives a perfectly scaled, compliant power backup network.

Our specialist engineers perform a thorough load analysis of your residential development's common-area circuits. We trace peak elevator starting currents, map critical security networks, and design a custom backup battery system sized perfectly to keep your building safe.
Different residential buildings have different power demands. We design custom backup solutions using high-capacity modular racks that can easily be expanded as you add security systems or community facilities, ensuring you do not pay for unneeded capacity on day one.
Our team of qualified, NICEIC electricians handles the entire physical installation process. We install secure, industrial-grade containment pathways, modify communal distribution boards, and integrate manual bypass switches to keep your backup system fully compliant with BS 7671 safety rules.
To keep your backup power systems operating at peak performance, we provide comprehensive preventative maintenance packages. Our engineers conduct regular thermal imaging, test individual battery cells, and clean filter modules during off-peak hours, ensuring absolute system reliability.

Upgrading critical power systems in an active residential development requires a highly certified electrical contractor who can deliver technical excellence with minimal disruption to residents.
We have extensive experience working inside busy residential apartment blocks, social housing developments, and retirement complexes. We understand that communal areas must remain clean and quiet, and we plan our work carefully to respect resident privacy.
Safety remains the absolute priority of our business. Every member of our on-site team is fully qualified, DBS-cleared, and regularly trained in high-capacity commercial power systems, and we hold full NICEIC and SafeContractor accreditations.
We understand that residential buildings are occupied 24 hours a day. We coordinate all major switchboard upgrades and final system integrations during off-peak daytime hours, ensuring your residents experience absolutely zero noise or operational disruption.
We provide completely transparent, detailed proposals for all our residential clients. Our clear quotes break down the exact costs of equipment, switchboard modifications, and installation labour, ensuring your building management team knows exactly where your budget is being spent.