Lighting, HVAC & Energy-Efficient Upgrades in London

At Bigness Group, we specialise in modernising London properties through intelligent lighting, HVAC, and energy-efficient upgrades. Our mission is to make every building more comfortable, sustainable, and cost-effective — without compromise on quality or design.
Whether you’re planning a full retrofit, office upgrade, or home improvement, we deliver systems that combine cutting-edge technology with expert craftsmanship.

Our Lighting, HVAC & Energy-Efficient Services in London

• Lighting Design & Installation – LED conversions, architectural lighting, and smart controls that cut energy use while enhancing ambience.

• Heating, Ventilation & Air-Conditioning (HVAC) – Full-system design, installation, and maintenance for comfort, safety, and efficiency.

• Energy-Efficiency Upgrades – Insulation, smart thermostats, and low-carbon technologies to reduce bills and improve performance.

• Renewable Integrations – Solar PV connections, EV charging points, and battery storage systems that prepare your property for the future.

• Compliance & Certification – Works delivered to BS 7671, Part L, PAS 2035, and all UK energy-efficiency regulations.

Our Process

1. Consultation & Planning – We analyse your property’s current systems, goals, and usage to propose the most efficient solutions.

2. Site Assessment & Design – Our engineers model performance and select components for maximum energy savings and comfort.

3. Installation & Optimisation – Certified technicians deliver a clean, safe, and precise installation with minimal disruption.

4. Testing & Handover – Every system is fully commissioned, performance-tested, and documented for compliance and warranty.

Powering Comfort, Efficiency & Sustainability

Every property depends on systems that provide light, warmth, and clean air. Bigness engineers design installations that achieve all three — intelligently and sustainably.
Our lighting solutions combine aesthetic design with smart control, enabling daylight-responsive dimming, motion sensors, and zoning for different spaces.
With HVAC optimisation, we balance air quality, temperature, and efficiency through systems that include heat pumps, ventilation, and low-energy cooling.
All components work together to lower running costs and improve the experience of those who live or work inside your building.

Smart Energy for Modern Buildings

Energy efficiency is now an investment, not an expense.
We help clients adopt smart thermostats, IoT sensors, and real-time monitoring tools that reveal exactly where energy is being wasted — then correct it automatically.
By integrating renewables and low-carbon technologies, you can achieve lower bills, higher EPC ratings, and a smaller environmental footprint.

Residential, Commercial & Public-Sector Expertise

• Residential: Smart lighting, underfloor heating, and comfort upgrades for modern homes.

• Commercial: Full-scale HVAC retrofits, energy audits, and lighting redesigns for offices, retail, and hospitality.

• Public-Sector: Energy-efficient systems for schools, healthcare facilities, and council buildings, supporting London’s decarbonisation goals.

Safety, Certification & Compliance

All Bigness projects comply with:

• BS 7671 (Electrical Safety)

• BS EN 378 (Refrigeration & Air-Conditioning)

• CIBSE Guidelines for building energy performance

You’ll receive full commissioning reports, O&M manuals, and safety certificates for insurance and warranty purposes.

Sustainability That Pays for Itself

Our upgrades typically pay back within 12–24 months through lower energy bills and reduced maintenance costs.
We use smart, efficient products that extend system life and enable predictive maintenance — saving both energy and time.

Our Latest Energy-Efficiency Projects in London

Discover how Bigness has helped residential and commercial clients reduce energy consumption and improve comfort through integrated lighting, HVAC, and renewable solutions. Explore our latest case studies to see sustainable design and technology in action.