We specialise in Energy Solutions
We believe that sustainability, in terms of building services, is the provision of systems that enable the delivery of sustainable buildings and schemes and which safeguard resources. A heating system that relies on fossil fuels, for example, is not sustainable, as eventually the fuel will run out.
Sustainability plays a major part in construction and building services. At Sigma Building Services LTD, we consider sustainability from the outset and provide appropriate solutions, which are also mindful of our clients’ cost constraints.
We have experience in delivering energy-efficient and low carbon projects and have expertise in technology such as combined heat and power (CHP) units and LED lighting installations.
Get in touchOur services include:
- Combined heat and power units
- Solar thermal hot water
- LED lighting installation including car park lighting and exterior signage
- Ground source heat pumps
- Variable speed drives to pumps
- Variable speed drives to fans
- Optimised start and stopping of plant
- Plant time clock management
- Floating set point temperature control modification
- Thermal insulation upgrades
- Lighting upgrade works
- Replacement of plant for energy efficient units
Our Energy Services
Solar PV (Photovoltaic) Systems
We design and install solar systems for homes, commercial premises and industrial buildings.
- Reduce electricity bills
- Lower carbon footprint
- Generate your own renewable power
- Export surplus energy back to the grid (where available)
Battery Storage Solution
Store excess solar generation or lower energy costs by using power during off-peak tariff hours.
- Improve energy independence
- Reduce reliance on grid demand
- Backup support during power interruptions
EV Charging Installations
We supply and install EV chargers for:
- Homes
- Commercial fleets
- Car parks & workplaces
- New developments & refurbishments
Smart charge management available for load balancing and improved efficiency.
LED Lighting & Energy-Efficient Upgrades
Modern lighting can reduce energy consumption by up to 80% vs. outdated systems.
We assess your property and deliver tailored upgrades that are:
- Low-maintenance
- Long lifespan
- High-quality performance
- Fully compliant with lighting and workplace standards
Energy Monitoring & Smart Building Controls
We provide metering, monitoring and control systems that help you understand and manage energy use.
- Identify high-consumption areas
- Reduce avoidable waste
- Improve efficiency across sites
- Support sustainability reporting
How We Work
Simple → Effective → Secure
Initial consultation
We discuss your needs and assess the site.
Tailored specification
We design the right solution (whether upgrade, install or refurbishment).
Professional installation
Our directly-employed workforce carries out the work to the highest standard.
Testing & hand-over
All installations fully tested and safe to hand over
Maintenance & support
We support you after installation, offering ongoing service and maintenance.
Contact Form
Contact Details
Ready to secure your London or Kent property with best-in-class building services? Contact Sigma Building Services today for a no-obligation site survey.
FAQs
What energy solutions do Sigma BS provide?
We provide solar PV, battery storage, EV charging, LED lighting upgrades and energy efficiency improvements for homes and businesses.
Can Sigma BS install solar panels for commercial buildings?
Yes, we design and install systems for commercial, industrial and public sector properties.
Do you offer solar systems for residential homes?
Yes, we supply and install solar PV systems tailored to domestic rooftops and usage patterns.
What is battery storage and how does it work?
Battery storage stores excess energy for later use, reducing reliance on grid power and improving efficiency.
Can I add battery storage to an existing solar installation?
Yes, in most cases. We can assess your system and recommend compatible storage options.
Do you install EV chargers for workplaces?
Yes, we provide charging solutions for business fleets, staff parking and public charging.
What are the benefits of switching to LED lighting?
LED lighting is more efficient, lasts longer and reduces running costs significantly.
Do you offer free site surveys?
Yes, we can arrange a free, no-obligation assessment.
Will I need planning permission for solar panels?
In most cases, no. However, we can advise based on your property type.
How much can I save with solar panels?
Savings vary based on usage, system size and tariff, but many customers see a noticeable reduction in bills.
Can you help reduce my business operating costs?
Yes, energy efficiency improvements directly lower energy bills and improve asset performance.
Do you offer maintenance for installed systems?
Yes, we provide planned and reactive maintenance.
Are your engineers qualified?
Yes, all work is carried out by approved, experienced and certified engineers.
Can you install energy solutions in listed or heritage buildings?
Yes, subject to survey and appropriate compliance considerations.
Do you offer finance or staged investment options?
We can discuss phased or scalable installations suited to your budget.
Can businesses monitor energy usage across multiple sites?
Yes, we offer smart control and monitoring solutions with central reporting.
Do EV chargers work with every electric vehicle?
We install universal chargers compatible with all standard EV models.
How long does a solar installation take?
Domestic systems typically take 1–3 days; commercial installations vary by scale.
Do you remove old lighting or equipment during upgrades?
Yes, we handle full removal and environmentally responsible disposal.
How do I get a quote?
Contact us by phone, email or via our website to arrange a consultation.
Accreditations
Our Clients
