What BSW Heating does

BSW Heating Limited is a UK-based, family-owned heating services contractor founded in 1962 and headquartered in Kenley, Surrey. The company designs, installs, maintains, and services gas, electric, oil, LPG, and renewable heating systems for social housing providers, local authorities, healthcare and education providers, and other public sector clients across South East England. It operates four service divisions - Domestic Maintenance & Installations, Commercial Maintenance & Installations, M&E Projects, and Renewable Technologies - supported by over 200 directly employed Gas Safe registered engineers, a fleet of 150+ vehicles, an in-house training facility, and a 24/7 in-house call centre. The company reports managing over 100,000 domestic dwellings and 600+ commercial sites.

Revenue is generated primarily through long-term managed services and installation contracts (7–15 year terms) awarded via competitive public sector tendering and procurement frameworks such as Fusion21, SEC, and LHC. Disclosed major contracts include a £140M+ 15-year contract with Notting Hill Genesis (23,000 properties, 91 plant rooms), a £30M+ 7.5-year contract with Anchor Hanover, and a £20M 10-year contract with Islington Borough Council. The technology stack is operational rather than productised: a Building Management System supports remote monitoring of plant, while the CPortal (client) and myBSW (resident) web portals provide self-service contract management and tenant interaction. ISO 9001:2015 quality management certification, Gas Safe registration, and framework-approved contractor status are core go-to-market enablers. The business is privately held by the Belliere family with no external shareholders, enabling decisions on capital investment and acquisitions without external funding cycles.

Name

BSW Heating

Legal name

BSW Heating Limited

Website

https://bsw-heating.com

Company type

Private

Founded year

1962

Operating status

Operating

Headcount range

101–250 employees

Short description

BSW Heating Limited is a family-owned UK heating services firm that installs and maintains gas, renewable, and district heating systems for social housing providers, local authorities, and public sector clients across South East England, operating with directly employed engineers and long-term framework contracts.

Ownership category

akta.pro rank

Product category

Heating Maintenance and Installation Services

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (23822), Plumbing, Heating, and Air-Conditioning Contractors (238220)

SIC

Cogeneration Services & Small Power Producers (4991), Electrical Work (1731)

akta.pro primary industry

Boiler & Hydronic Heating Repair & Service (HSAOAHAG)

akta.pro secondary industries

Residential HVAC System Installation (Furnace/AC/Heat Pump) (HSAOAGAA), Chillers, Boilers & Central Plant Operations (BPABACAG), Heat Pump Repair & Maintenance (HSAOAHAD)

Keywords

• Domestic heating services
• Commercial heating maintenance
• Mechanical electrical projects
• Renewable heating systems
• District heating services

Headquarters

HQ city

Kenley

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Supply Chain, Marketing or Sales

Revenue model

1. Service and Maintenance Contracts: Ongoing servicing, maintenance, and repair contracts for domestic and commercial heating systems. Includes 24/7 reactive callouts and planned preventative maintenance (PPM) regimes. Revenue is recurring over contract terms ranging from 7.5 to 15 years.
2. Installation Projects: Full installation works for heating systems, plant rooms, boiler replacements, and renewable technology installations. Includes M&E projects and design/build packages.
3. Heat Network Services: Services for district heating schemes including maintenance of plant rooms, HIUs, and tertiary distribution systems.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

BSW Heating provides domestic and commercial heating servicing, repair, maintenance and installation services across the South East of England. Its work spans long-term maintenance contracts, heating installation projects, mechanical and electrical projects, renewable heating technologies and heat-network-related services for housing associations, local authorities, education providers, hospitals and other managed-property clients.

Product overview

BSW Heating offers a unified portfolio of heating services across four core divisions: Domestic Maintenance & Installations (managing 50,000+ dwellings), Commercial Maintenance & Installations (550 plant rooms, 18,000 connected dwellings), M&E Projects (mechanical & electrical design/build), and Renewable Technologies (heat pumps, heat networks). The company operates two customer-facing portals—myBSW for residential clients and CPortal for commercial clients—alongside service components including Heat Interface Units installation, Landlord Gas Safety Certificates, and 24/7 emergency response. All services are delivered by directly employed Gas Safe engineers using a ISO9001:2015 quality management system.

Differentiator

Problem solved

Functional benefit

Products and services

• Domestic Maintenance & Installations
• Commercial Maintenance & Installations
• M&E Projects
• Renewable Technologies
• Landlord Gas Safety Certificates

Quantifiable outcome

• Over 100,000 homes and 600 commercial sites managed across South East
• +4 more outcomes

Named customers14 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Fusion21coreChannel Partner/ Reseller/ DistributorFusion21 is a public sector procurement framework through which BSW Heating was awarded the London Borough of Islington Communal Heating & Ventilation Contract. BSW participates in the Fusion21 Heating, Renewables and Electrical Framework for access to public sector contract opportunities.
• SEC (South East Consortium)coreChannel Partner/ Reseller/ DistributorSEC is a housing consortium framework through which BSW Heating secures contracts including those with London Borough of Southwark and Police, Fire and Crime Commissioner for Essex.
• LHC (London Housing Consortium)coreChannel Partner/ Reseller/ DistributorLHC is a procurement consortium for housing maintenance works. BSW Heating holds LHC Approved Contractor status.
• Bianca Sale LimitedminorChannel Partner/ Reseller/ DistributorFacilitated contract award for Hertfordshire University NHS Foundation Trust at St Pauls Care Centre project valued at £283,000.

Scale indicators10 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Mitie Group plc: Mitie is a large UK-listed facilities management and building services group with an HVAC, mechanical and electrical maintenance offering to public sector and property clients. Comparable at the commercial maintenance and M&E project line, though broader in scope than BSW.
• Equans UK: Equans is a large UK and European building services and energy services provider with HVAC, district heating, and heat network capabilities. Comparable to BSW's commercial maintenance, M&E projects, and Renewables Technologies (heat network) divisions, and operates at significantly larger scale.
• British Gas (Centrica plc): British Gas is the UK's largest domestic heating, plumbing and boiler service provider, serving millions of homes with a broad product portfolio. It is a much larger incumbent offering the same boiler servicing, repair, and installation categories as BSW, and competes for the same end-customers in the South East.

Direct peers

• Pimlico Plumbers: Pimlico Plumbers is a London-based, family-built plumbing and heating services business that, like BSW, employs its tradespeople directly (no subcontractors) and serves a mix of domestic and commercial customers. Comparable on operating model, London/South East geographic footprint, and directly-employed trades workforce.
• Sureserve Group plc: Sureserve Group is an AIM-listed UK provider of gas heating, electrical and energy services to social housing and the public sector, with a comparable service mix (planned maintenance, retrofits, renewables) and similar contract durations and customer base to BSW. It is the most directly comparable public peer for BSW's domestic heating services business.
• Mears Group plc: Mears Group is a UK-listed provider of repairs, maintenance and management services to the social housing sector, with a directly overlapping customer base (housing associations, local authorities) and a comparable planned/reactive maintenance offering to BSW's domestic and commercial service lines.

Emerging players

• Vital Energi Solutions Limited: Vital Energi is a UK specialist contractor in district heating, heat networks, and low-carbon energy centres for social housing, universities and hospitals. Highly comparable to BSW's heat network, HIU, and energy centre capability within the Renewables Technologies and M&E Projects divisions.
• Morgan Sindall Property Services: Morgan Sindall Property Services is the planned and reactive maintenance arm of Morgan Sindall Group, providing building maintenance and refurbishment services to social housing and public sector clients. Comparable to BSW on domestic and commercial maintenance contracts with the same client base.
• J Tomlinson Limited: J Tomlinson is a UK mid-market building services contractor providing mechanical and electrical services, facilities management and energy services to social housing and public sector clients. Comparable in scale and customer profile to BSW, with a similar M&E and maintenance offering.
• Dalkia UK: Dalkia UK is a specialist in district heating, heat networks, and energy services for UK public sector and commercial customers. Most directly comparable to BSW's Renewables Technologies and heat network / HIU work, though it operates at a larger scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/bswheatingltd

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about BSW Heating