Smart meters have reshaped how energy is measured, understood and paid for across the UK. In London with its diverse mix of homes, flats, and commercial buildings smart metering is especially valuable. These devices send accurate energy usage data straight to suppliers, removing the need for manual meter readings and often leading to clearer bills and better control of consumption. This guide explores how smart metering works, what to look for when choosing a provider and reviews the top ten smart metering companies serving London based on real customer experiences and industry standards.
What Are Smart Metering Companies in London?
A smart metering company specialises in installing and managing digital electricity and gas meters that automatically communicate energy use to the supplier. These meters replace traditional analog meters with digital systems that deliver real‑time or near real‑time data.
For London residents and businesses, this technology brings clarity: energy bills are based on actual usage, not estimates; consumers gain insight into their consumption patterns; and suppliers can offer tariffs that align more closely with how energy is used.
London’s energy landscape is complex, with older residential properties, high‑rise developments and busy commercial districts all demanding flexible metering solutions. Smart meters are part of the UK’s broader push for energy efficiency, supporting national carbon reduction targets and giving consumers the tools to manage costs more effectively.
How Does Smart Metering Work in the UK?
Smart meters work through a simple but secure digital process. In essence, a smart meter replaces traditional metering equipment with a device that measures energy use electronically and communicates with the energy supplier via a secure network most commonly through the Data Communications Company (DCC).
Alongside the meter itself, many installations include an in‑home display (IHD), which shows electricity and gas usage in near real time.
The technology used in modern UK smart meters is defined by the SMETS (Smart Metering Equipment Technical Specifications) standards. The current generation, SMETS2, ensures that smart functionality
How Does Smart Metering Work in the UK?
such as automatic reporting continues even if a customer switches energy suppliers. This continuity was a major improvement over earlier installations, which sometimes lost connectivity after tariff changes.
Although the core idea of a smart meter is straightforward, the practical implementation can be complex, especially in buildings with shared infrastructure or limited communication coverage. Professional installers can navigate these challenges, ensuring the meter is correctly configured and fully integrated with both the household wiring and supplier systems.
Why Is Demand for Smart Metering Increasing Across London?
Several trends are driving smart meter adoption across the capital. Rising energy costs have made consumers more interested in understanding and managing their consumption. Traditional meters, which often rely on quarterly manual readings or estimates, can leave customers unsure whether their bills accurately reflect usage.
As London continues to modernise its housing stock and businesses strive for operational efficiency, smart meters fit naturally into energy management strategies. They provide transparency and data that can inform decisions such as when to switch tariffs or how to reduce usage during peak times.
The UK government and energy regulator Ofgem have supported a nationwide smart meter rollout for years, encouraging home and business owners to adopt this technology. While not legally compulsory, smart meters are widely offered by suppliers at no direct cost to end customers. However, the quality of installations and equipment can vary, which is why choosing a reputable provider matters.
Top 10 Smart Metering Companies in London
1. SMS plc – “Smart Metering & Energy Data Management Experts”
SMS plc is a leading UK energy infrastructure company with over 25 years of experience delivering smart metering and energy solutions across residential and commercial sectors. It manages millions of assets for energy suppliers, providing installation, maintenance, and data insight services that help reduce energy waste and support sustainability goals.
The company’s end‑to‑end services include metering, advanced settlement, analytics and energy management. It works directly with energy suppliers and major business customers to help meet regulatory rollout targets while improving operational efficiency. SMS also trains professionals in smart metering technology at its accredited training facility.
With deep industry expertise, it plays a pivotal role in the UK’s smart energy transition. Based in Glasgow, SMS has a presence in London and across the UK.
- Website: https://www.smsenergy.com/
- Email: I&Ccustomerservice@smsenergy.com
- Phone: 0141 674 1312
- Address: 78 Canon Street, London EC4N 6HL
2. Energy Assets Group – “Multi‑Utility Metering & Data Services”
Energy Assets Group is a national provider of metering, data, and infrastructure services for electricity, gas, water and more. With over 20 years’ experience, it supports residential developers, energy suppliers and commercial organisations through innovative metering solutions and data analysis. Its services include multi‑utility metering and network construction across the UK.
Energy Assets emphasises customer support and transparent processes, offering competitive quotes and accredited services. The company manages significant metering infrastructure and asset portfolios, contributing to reliable energy delivery and compliance. Although headquartered in Lancashire, it operates across London and the wider UK.
- Website: https://www.energyassets.co.uk/
- Phone: 01506 405 405
- Email : customerservices.energysolutions@energyassets.co.uk
- Address: 2 Arkwright Court, Commercial Road, Darwen, Lancashire, England, BB3 0FG
3. IMServ Europe Ltd – “Energy Metering & Data Intelligence Specialists”
IMServ Europe Ltd has more than 30 years of experience delivering smart metering services, data collection, analytics and energy intelligence solutions across the UK. It helps energy suppliers, businesses and the public sector optimise performance and improve compliance with regulatory requirements.
Known for its ability to handle complex metering challenges, IMServ provides advanced analytics and settlement performance tools that give organisations control over energy use and costs.
The company monitors hundreds of thousands of meters and supports solutions from advanced metering to energy data intelligence. Its focus on accuracy and insight makes it a trusted partner for clients needing dependable metering services.
- Website: https://imserv.com/
- Phone: 01908 696000
- Email: contactus@imserv.com
- Address: 80 Victoria Street, London SW1E 5JL
4. Calisen – “UK Smart Meter Installation & Asset Management Leader”
Calisen is one of the UK’s largest and most recognised energy metering companies, playing a major role in the smart meter rollout and ongoing metering services across residential and commercial properties. Founded in 2002 and headquartered in Manchester, Calisen owns and manages millions of smart meters across the country, supporting energy suppliers with installations, maintenance and meter reading services.
The company is known for reliable deployment and strong field operations that ensure accurate data collection and compliance with industry standards. Calisen’s scale and experience make it a key partner for suppliers aiming to meet smart metering targets.
Its services contribute to improved billing accuracy and more transparent energy usage reporting for consumers. With a network that extends nationwide, Calisen also partners with installers and field teams to serve London homes and businesses efficiently.
- Website: https://www.calisen.com/
- Phone: 0161 240 3352
- Email: Contact@calisen.com
- Address: One Bedford Row. London. WC1R 4BU
5. Smart Choice Metering – “Smart Meter Installations & Dual Fuel Experts”
Smart Choice Metering is a UK‑based company dedicated to delivering smart gas and electricity meter installations for both residential and commercial customers. With a mission to install over one million dual‑fuel smart meters nationwide, the company works closely with energy suppliers to support the UK Government’s Smart Metering Implementation Programme.
Smart Choice Metering combines strong technical expertise with customer‑focused services, ensuring installations are compliant with modern standards and aligned with customer needs. Its engineers are trained to handle a variety of property types, making the process smooth whether in London homes or business premises.
The company’s emphasis on reliability and energy efficiency has helped it become a trusted partner in the smart metering rollout. Smart Choice Metering also manages ongoing asset and service requirements for smart meters after installation. This makes it a relevant replacement in any list of leading UK metering companies.
- Website: https://smartchoiceholding.co.uk/
- Email: info@smartchoiceholding.co.uk
- Phone: 0333 4432748
- Address: Office 226, Building 3, North London Business Park, Oakleigh Road South, London, N11 1GN
6. Trilliant Networks – “Advanced Smart Metering & IoT Platforms”
Trilliant Networks delivers smart metering technology that supports utilities and energy providers with advanced features such as flexible tariff reporting, outage notifications and in‑home engagement tools. Its device‑agnostic platform can integrate with a wide variety of meter technologies, enabling utilities to scale deployments efficiently.
With extensive global experience and a focus on secure data, Trilliant supports smart meter projects that benefit both suppliers and consumers. While Trilliant is headquartered internationally, its technology solutions are applicable to UK networks seeking to leverage smart metering and IoT‑enabled services.
- Website: https://trilliant.com/
- Phone: +44 1753 913030
- Email: Contact Form
- Address: Morgan House, Madeira Walk, Windsor SL4 1EP
7. Chameleon Technology – “Smart Energy Interfaces & Consumer Tools”
Chameleon Technology is known for enhancing the smart metering experience through consumer‑facing displays and interfaces that help users visualise and interact with their energy data. While not always an installer, it provides complementary technology that works alongside traditional smart meters, offering clearer insights and improved engagement with energy usage.
Its solutions are designed for use in residential settings and with various energy suppliers across the UK. Chameleon Technology builds tools that help end users better manage their consumption patterns through intuitive visual feedback.
- Website: https://chameleontechnology.co.uk/
- Phone: 01423 815 911
- Email: info@chameleontechnology.co.uk
- Address: 1st Floor, Otley Rd, Harrogate HG3 1UF
8. Hildebrand Technology – “Energy Analytics & Smart Meter Data Platforms”
Hildebrand Technology specialises in energy data platforms and analytics solutions, often working with suppliers and service providers to extend the value of smart meter data. Its consumer app and dashboard solutions, such as the Glow platform, give users deeper insight into their usage patterns.
While not always a direct installer, Hildebrand’s technology complements smart metering infrastructure by turning raw data into actionable intelligence for households and businesses. The company’s tools are widely adopted across the UK, supporting energy transparency and efficiency.
- Website: https://www.hildebrand.co.uk/
- Email: info@hildebrand.co.uk
- Address: 63 Dean St, London W1D 4QG
9. Yü Smart – “Accredited Smart Meter Installation & Maintenance”
Yü Smart is a UK‑based accredited metering company specialising in the installation, exchange and maintenance of both legacy and smart electricity and gas meters for residential and commercial customers. As a fully accredited Metering Equipment Manager (MEM) and Meter Operator under UK metering codes, Yü Smart works with energy suppliers to ensure smart meters are fitted correctly and remain operational over time.
Its team is experienced with single phase, polyphase and CT metering systems, making it suitable for a wide range of properties from London homes to business premises. The company’s focus on compliance and quality ensures installations meet the standards set by industry regulators and energy networks.
Customers and partners alike value Yü Smart’s commitment to safe, efficient work and its capability to support metering needs across the UK. As smart meter adoption accelerates nationwide, Yü Smart has helped bridge legacy infrastructure with modern digital metering, providing solid support for energy transparency and data accuracy.
- Website: https://yusmart.co.uk/
- Phone: 020 3397 3799
- Email: Contact Form
- Address: Sub Zero & Wolf, 251 Brompton Rd, London SW3 2EP
10. Utilita Energy – “Smart Meter Pioneer & Pay‑As‑You‑Go Specialist”
Utilita Energy is a UK electricity and gas supplier with a strong heritage in smart metering. It was one of the first British companies to install smart meters and has since developed energy management tools for residential customers, including apps that help track usage.
While Utilita operates as an energy supplier rather than a pure metering contractor, its involvement in metering technology and consumer engagement makes it relevant to smart metering services in London. Utilita’s focus on accessible, transparent energy data helps customers manage costs more effectively.
- Website: https://utilita.co.uk/
- Address: Secure House, Moorside Rd, Winchester SO23 7RX
- Email: 0345 207 2000
How Do Smart Metering Companies in London Compare?
These companies serve a range of customers, from individual homeowners to large commercial accounts, and differences in focus and expertise can influence choice. For example, SMS plc and Smart Metering Systems offer broad services with extensive national reach, while Phoenix Energy and National Smart Energy are more focused on London‑area residential support.
Companies such as Trilliant Networks and Energy Assets Group bring strengths in larger‑scale infrastructure and data systems, which can benefit commercial clients or multi‑site installations. Others, like Chameleon Technology and Hildebrand Technology, enhance the user experience through data visibility and analytics.
Choosing between these providers depends on the specific needs of the customer: whether the priority is rapid installation, advanced analytics, or specialised support.
What Are the Benefits of Choosing a London‑Based Smart Metering Company?
A locally based smart metering provider can offer tangible benefits. Proximity often translates to shorter waiting times for installation and quicker follow‑up if issues arise. These companies are generally familiar with the range of property types found across London and can tailor solutions accordingly. Local reviews and community reputation also provide valuable insight, helping customers set realistic expectations about service quality.
Providers with demonstrated experience in the capital’s energy market are more likely to anticipate challenges that might not appear in other regions such as connectivity limitations or infrastructure differences in older buildings.
What Should Homeowners and Businesses Consider Before Choosing a Smart Metering Provider?
Before committing to a provider, it is important to consider several factors. First, ensure the company installs SMETS2‑compliant meters, as these maintain smart functionality when switching suppliers. Second, understand how the provider works with your current or intended energy supplier. Not all installations are equally supported across every network.
Customer support matters just as much as technical capability. After‑installation service, responsiveness to questions and clarity of communication all contribute to a positive experience. Finally, data privacy cannot be overlooked. Smart meters collect sensitive information about usage habits, so customers should feel confident that their data will be handled securely and in line with UK privacy standards.
How Can Smart Metering Help Reduce Energy Waste and Costs?
Smart meters help consumers see exactly how and when they use energy, which in turn encourages smarter decisions. For example, a household that realises its heating system peaks during certain hours might adjust settings or use timers, reducing waste. A business that monitors energy via a dashboard could shift high‑usage tasks to off‑peak times when tariffs are lower.
While the technology does not automatically lower bills, it equips users with insights that can lead to behavioural changes. Over time, these changes often result in measurable savings.
What Are the Key Takeaways When Choosing a Smart Metering Company in London?
Smart metering continues to grow in relevance as energy costs rise and digital technologies mature. London’s wide range of providers means customers can find solutions tailored to their needs, whether they are installing a meter for the first time or upgrading existing infrastructure.
The most important considerations remain clear: choose a provider with strong reviews, transparent communication, and the technical ability to deliver a smart meter that works reliably with your energy supplier. A well‑installed smart meter can offer not just accurate bills, but a clearer understanding of energy usage and more control over future costs.
Conclusion
Choosing the right smart metering company in London ensures accurate energy usage tracking, lower bills, and reliable support. The top providers listed here offer trusted installation, maintenance, and data services to suit homes and businesses alike. A well-chosen partner can help you save energy, stay compliant, and take full control of your energy use.
FAQs
Are smart meters compulsory in the UK?
Smart meters are not mandatory, but energy suppliers are expected to offer them. Most customers are now offered smart meters as part of their standard service.
Can businesses in London install smart meters?
Yes. Both small and large businesses can install smart meters, with services tailored to their energy use patterns.
How long does a smart meter installation take?
Most installations are completed in under two hours, but complexity can vary depending on property layout and existing wiring.
Is smart meter data secure in the UK?
Yes. Smart meter communications use secure networks, and data is managed under UK privacy regulations.
Can landlords install smart meters in rental properties?
Yes, with tenant consent. Smart meters do not conflict with tenancy agreements and can actually help tenants manage costs.
Do smart meters work in flats and apartments?
In most cases, yes. However, shared infrastructure in communal buildings may pose specific challenges that experienced installers are equipped to handle.
Can I switch energy suppliers after installing a smart meter?
Yes, particularly with SMETS2‑standard devices, which retain smart functionality after a switch.