Strebel
Strebel Limited is a UK commercial heating equipment supplier, established 1975 and part of the GEBE/Strebelwerk GmbH group, selling condensing boilers, air source heat pumps, water heaters, and calorifiers to consulting engineers, contractors, and public sector end customers through a regional direct-sales network.
- Company typePrivate
- Founded1975
- HeadquartersFarnborough, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Strebel does
Strebel Limited is a UK-incorporated (21 January 1975) commercial heating equipment supplier operating as part of the GEBE/Strebelwerk GmbH group of companies, with headquarters in Farnborough, Hampshire. The company supplies, installs, and services commercial boilers, air source heat pumps (ASHPs), direct fired gas water heaters, indirect hot water calorifiers, and ancillary system accessories (buffer vessels, acoustic enclosures, plate heat exchangers, boiler guards, low loss headers). Its product portfolio spans wall hung condensing boilers (S-CB+, S-CBX with sub-24mg/kWh NOx), floor standing condensing boilers up to 600kW (S-CB FS, S-CB-FSX, S-FX, the new S-FAX launched in 2026), and a deep S-ASX ASHP family from 25kW to 135kW using refrigerants including R290 (GWP 3), R454C (GWP 148), R454B, and R410A, with proprietary EVI circuitry delivering stable 78°C flow temperatures down to -15°C ambient and SCOP ratings up to 4.49.
Strebel makes money primarily through hardware sales to commercial heating engineers, M&E consulting engineers, contractors, and building operators, with a quote-based pricing model delivered through a network of regional Area Sales Managers covering the whole of the UK plus the Republic of Ireland. Recurring revenue streams include annual ASHP service contracts, three-year fixed-price maintenance agreements with spares discounts, passive and active remote monitoring subscriptions (4G webserver with included two-year data), extended warranty programmes up to seven years, commissioning services (mandatory for warranty validity), and spare parts. The company has roughly 11-50 employees.
The customer base is concentrated in the UK public sector and regulated commercial segments: schools, colleges, and universities pursuing Public Sector Decarbonisation Scheme (PSDS) and Salix-funded retrofits; leisure centres and sports facilities with simultaneous heating and DHW loads; healthcare providers (children's hospices, care homes) requiring uninterrupted service; community and religious buildings; and sheltered housing operated by local authorities. Project work typically involves a Strebel-led Stage 4 design with consulting engineers (e.g., Ridge & Partners, KGA Consulting) and a specialist installer (e.g., Briggs & Forrester, Senate Group, Morrison Heating Services). Distribution is exclusively direct via the Area Sales Manager network; BIM specification is enabled through a partnership with BIMSTORE, and the company delivers CIBSE-accredited CPD training to the consultant channel.
Strebel firmographics
Firmographics- Name
- Strebel
- Legal name
- Strebel Limited
- Website
- https://strebel.co.uk
- Company type
- Private
- Founded year
- 1975
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Strebel Limited is a UK commercial heating equipment supplier, established 1975 and part of the GEBE/Strebelwerk GmbH group, selling condensing boilers, air source heat pumps, water heaters, and calorifiers to consulting engineers, contractors, and public sector end customers through a regional direct-sales network.
- Ownership category
- akta.pro rank
Strebel industry classification
Industry- Product category
- Commercial Heating Equipment
- NAICS
- Heating Equipment (except Warm Air Furnaces) Manufacturing (333414)
- SIC
- Heating Equipment, Except Electric & Warm Air Furnaces (3433)
- akta.pro primary industry
- Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers) (IMAHAEAC)
- akta.pro secondary industries
- Industrial Boilers, HRSGs & Steam Generators (IMAHAFAF), Boiler & Hydronic Heating System Installation (HSAOAGAF), Boiler & Hydronic Heating Repair & Service (HSAOAHAG)
Keywords
Where Strebel is headquartered
LocationHeadquarters
- HQ city
- Farnborough
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Strebel business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales
Revenue model
- Commercial Heating Equipment Sales: Sale of commercial boilers, air source heat pumps, water heaters, calorifiers, and associated system accessories directly to commercial heating engineers, contractors, and building operators. Products include wall hung condensing boilers (S-CB+, S-CBX), floor standing condensing boilers (S-CB FS, S-CB-FSX, S-FX, S-FAX), air source heat pumps (S-ASX range 25-135kW), direct fired gas water heaters (S-WG+, ATI-SPX), and indirect hot water storage (S-DW-I, S-LC-I, ATI-CC).
- After-Sales Service Contracts: Annual service contracts for ASHP maintenance and F-Gas compliance checks, offered on an annual basis or as three-year fixed price contracts with 15% spares discount. Service covers up to three units per day including inspection, cleaning, testing, and F-Gas regulatory compliance.
- Remote Monitoring Packages: Passive and Active remote monitoring packages for S-ASX ASHP units. Passive monitoring provides webserver access with auto fault emails for up to five addresses. Active monitoring provides real-time connection to Strebel Technical support during office hours (09:00-16:30 Monday-Friday) with alarm response and remote fault investigation.
- Commissioning Services: Commissioning services by Strebel engineers for gas boilers and ASHP installations. Commissioning by Strebel engineers is required to qualify for full warranty coverage (2 years parts and labour for boilers; 2 years for ASHP).
- Extended Warranty Programs: Extended warranty available for ASHP units up to an additional 5 years beyond the standard 2-year warranty, making up to 7 years total coverage. Annual charge per machine quoted project-by-project, invoiced in advance.
- Spare Parts: Spare parts supply for all product ranges, including discontinued products where available. Parts replaced under warranty are covered free of charge at Strebel's discretion.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | Annual ASHP Service Contract |
| Subscription | Annual | Passive Remote Monitoring Package |
| Subscription | Annual | Active Remote Monitoring Package |
| Subscription | Multi-year contract | Extended ASHP Warranty (2+5 Year) |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels7 records
Strebel product offering
Product offeringCore offering
Strebel designs, manufactures, supplies and commissions commercial heating equipment including high-efficiency condensing gas boilers (30-600kW), air source heat pumps using Enhanced Vapour Injection (EVI) technology, commercial water heaters, and indirect hot water storage units. The company serves non-domestic building operators and commercial heating engineers with a focus on decarbonisation, ultra-low NOx emissions, and hydrogen-ready boiler platforms.
Product overview
Strebel is a commercial heating solutions company offering an extensive portfolio of air source heat pumps, condensing boilers, and domestic hot water products. The core product range includes the S-ASX air source heat pump family (S-ASX-LPi, S-ASX-NTi, S-ASX-NTVi, S-ASX-NTVMi, S-ASX-OPVi, S-ASX-NT, S-ASX-VP, S-ASX-VP i55, S-ASX-LQ) ranging from 25kW to 135kW with various refrigerant options including R290 (GWP 3), R454B (GWP 466), and R454C (GWP 148); the S-CB+ and S-CBX condensing wall hung boiler ranges; and the S-FX, S-CB-FS, S-CB-FSX, and new S-FAX condensing floor standing boilers (150-600kW). Supporting products include buffer vessels (TSE/TS), acoustic enclosures (S-ACE 15), plate heat exchangers, boiler guards, and low loss headers. Hot water solutions span the ATI-SPX, ATI-SPX 50/330, S-WG+ direct fired water heaters and S-DW-I, S-LC-I, ATI-CC indirect storage calorifiers. Services include commissioning, ASHP remote monitoring (Passive and Active packages), and maintenance contracts. The company was founded in 1975 and maintains UK operations from Farnborough, Hampshire.
Differentiator
Problem solved
Functional benefit
Products and services
- S-ASX-LPi Air Source Heat Pump Three-phase commercial air source heat pump using EVI technology, designed for retrofit and new build projects requiring high flow temperatures without electric backup. Targeted at commercial heating engineers and building operators decarbonising commercial premises.
- S-ASX-NTi Air Source Heat Pump Single-phase version of the S-ASX air source heat pump range, broadening accessibility to smaller commercial premises with single-phase electrical supply. Uses EVI technology for high-temperature output.
- S-ASX-NTVi Air Source Heat Pump Three-phase inverter-driven commercial air source heat pump using EVI vapour injection scroll compressor technology for high-temperature commercial heating.
- S-ASX-NTVMi Air Source Heat Pump Monobloc three-phase inverter commercial air source heat pump using EVI technology, packaged as an external single unit for simpler installation.
- S-ASX-OPVi Air Source Heat Pump Next-generation commercial air source heat pump offering higher flow temperatures than the original OPVi model, leveraging Enhanced Vapour Injection technology. Available for orders from January 2027.
- S-ASX-NT Air Source Heat Pump Three-phase commercial air source heat pump from the S-ASX family of EVI-driven high-temperature commercial heat pumps.
- S-ASX-VP Air Source Heat Pump Three-phase V-Frame commercial air source heat pump from the S-ASX range using EVI scroll compressor technology.
- S-ASX-VP i55 Air Source Heat Pump Variable-speed inverter V-Frame commercial air source heat pump designed around the 55kW commercial capacity class.
- S-ASX-LQ Air Source Heat Pump Three-phase commercial air source heat pump, LQ configuration of the S-ASX range.
- S-CB+ Commercial Boiler Ultra-low NOx pre-mix condensing commercial boiler designed for installation in cascade or standalone configurations for commercial heating applications.
- S-CBX Commercial Boiler Hydrogen 20 / Diesel 80 blend-ready commercial condensing boiler for commercial heating installations requiring future-proof fuel compatibility.
- S-CB FS Commercial Boiler Floor-standing ultra-low NOx pre-mix condensing commercial boiler from the S-CB platform.
- S-CB-FSX Commercial Boiler Floor-standing commercial condensing boiler with stainless steel heat exchanger construction from the S-CB family.
- S-FX Commercial Boiler Wall-hung condensing commercial boiler from Strebel's S-FX range, designed for smaller commercial applications.
- S-FAX Commercial Boiler Range Ultra-high efficiency commercial boiler range covering 150-600kW, launched as a new addition to Strebel's commercial boiler portfolio in 2026.
- S-WG+ Commercial Water Heater Commercial gas-fired water heater delivering high recovery hot water for non-domestic buildings requiring large domestic hot water volumes.
- ATI-SPX Indirect Hot Water Storage Cylinder High recovery indirect unvented stainless steel hot water storage cylinder designed for commercial heating and hot water applications.
- ATI-SPX 50/330 Indirect Hot Water Storage Cylinder High-capacity 50/330 variant of the ATI-SPX range of high-recovery stainless steel indirect hot water storage cylinders for commercial premises.
- S-DW-I Indirect Hot Water Storage Cylinder Indirect unvented hot water storage cylinder for commercial hot water generation.
- S-LC-I Indirect Hot Water Storage Cylinder Indirect unvented hot water storage cylinder for commercial hot water generation.
- ATI-CC Indirect Hot Water Storage Cylinder Indirect unvented hot water storage cylinder for commercial premises.
- Buffer Vessel (TSE and TS ranges) Buffer vessels in TSE and TS configurations for hydraulic stability in commercial heating installations.
- Low Loss Header (Hydraulic Separator) Hydraulic separator ensuring hydraulic separation between boiler/heat pump primary circuits and the secondary heating distribution circuit in commercial installations.
- Boiler Guard Combined air separator, gas separator, dirt and sludge trap with integrated low loss header for hydraulic separation in boiler and heating installations.
- Plate Heat Exchanger Plate heat exchangers using ULTRADENSE plate technology for thermal transfer efficiency in commercial heating systems.
- S-CB+ Boiler Cascade Rig Pre-assembled multi-boiler cascade rig using S-CB+ boilers for high-output commercial heating installations.
- S-CBX Boiler Cascade Rig Pre-assembled multi-boiler cascade rig using S-CBX hydrogen-ready boilers for higher-output commercial heating systems.
- Mobile Trailer Plant Mobile trailer-mounted temporary boiler plant supplied by Strebel for hire, emergency and planned temporary-heating scenarios.
- S-ACE 15 Acoustic Enclosure Acoustic enclosure designed for noise attenuation around commercial boiler plant installations in noise-sensitive environments.
- S-EBX Commercial Boiler Commercial boiler model from Strebel's boiler product line.
- Strebel Spares Ordering Service Manufacturer-direct online spares ordering service for Strebel boiler and water heater installed base, with delivery for service engineers and contractors.
- Air Source Heat Pump Commissioning Service Manufacturer-provided commissioning service for Strebel air source heat pump installations, executed by direct-employed engineers rather than subcontractors.
- Gas Boiler Commissioning Service Manufacturer-provided commissioning service for Strebel commercial gas boiler installations, executed by Strebel's direct-employed service engineers.
- StrebelCare Remote Monitoring Subscription Subscription-based 4G remote monitoring service for installed Strebel plant with BACnet IP BMS integration, available on three-year fixed-price contracts.
- StrebelCare Service Contract Annual planned preventative maintenance and service contract for installed Strebel boiler and heat pump plant, executed by direct-employed engineers.
- Strebel Extended Warranty Multi-year warranty extensions of 3, 5, 7 and 10 years for Strebel commercial boilers and water heaters, available subject to StrebelCare service-contract conditions.
Quantifiable outcome
- Saves approximately 720 tonnes of carbon per year (Cheshire South & West College 1.5MW ASHP installation)
- +5 more outcomes
Companies that use Strebel
Customer profileNamed customers10 records
Segments6 records
Ideal customer profiles5 records
Strebel technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration2 records
Feature7 records
Strebel partnerships and signals
Strategic signalPartnerships
Nine partnerships are on record, tiered core and minor.
- Ridge & Partners LLPcoreRidge & Partners LLP of Birmingham served as consulting engineers providing detailed Stage 4 design for Parkwood Leisure Centres ASHP installations. Strebel provided technical support up to detailed Stage 4 design, with Ridge selecting combinations of S-ASX-VP heat pumps, TS thermal stores, and S-LC-I calorifiers. Ridge was instrumental in product selection based on SCOP performance and ENA electricity network database approval.
- Briggs & Forrester (Special Projects) LtdcoreAwarded the installation programme for Parkwood Leisure Centres. Verified Stage 4 designs and confirmed orders for supply of designed equipment for each of the four sites. Worked closely with Strebel's project management team throughout the 6-month delivery period.
- Martin Environmental ServicesminorEnvironmental services contractor responsible for the installation of the S-ASX-LQ75 ASHP at Masters House, Sheerness. Meticulously planned installation considering coastal saline air protection with epoxy coil coating and bespoke acoustic enclosure.
- KGA ConsultingcoreStage 4 consulting specialists from Birkenhead providing detailed design for Cheshire South & West College 1.5MW ASHP installation. Worked collaboratively with Strebel and installation contractor Senate Group throughout all project phases.
- Senate GroupcoreLiverpool-based installation contractors responsible for the mechanical and electrical installation of the Cheshire South & West College ASHP project. Provided installation programme management and coordination with Strebel's site and office support teams.
- AA ProjectsminorManaging contractor based in Sale overseeing the Cheshire South & West College decarbonisation project. Led the successful PSDS funding application and coordinated overall project delivery alongside Strebel, KGA Consulting, and Senate Group.
- Morrison Heating Services LtdminorHeating services contractor that installed the Kirkintilloch Baptist Church heating system upgrade using two Strebel S-CB+ 60 commercial gas condensing boilers.
- BIMSTOREcorePartnership with BIMSTORE to publish BIM objects for Strebel S-CBX wall hung boilers and S-FX range. BIM objects are available to download for building information modelling (BIM) compliant projects, supporting BREEAM credit submissions.
- Salix Finance / Public Sector Decarbonisation Scheme (PSDS)coreSalix funding via the Public Sector Decarbonisation Scheme (PSDS) enabled Parkwood Leisure Centres to replace natural gas boilers with air source heat pumps and photovoltaic panels. PSDS funding was accessed using the Fusion 21 Decarbonisation Framework.
Scale indicators8 records
Recent moves7 records
Expansion highlights6 records
Strebel competitors and assessment
Company assessmentDirect peers
- Viessmann UK: Viessmann is a German-headquartered commercial and residential heating manufacturer with strong UK operations in commercial boilers, heat pumps, and DHW solutions. Highly comparable to Strebel as a European-engineered commercial heating specialist targeting the same consulting engineer and contractor specification channel.
- Ideal Heating (Groupe Atlantic): Ideal Heating is a major UK commercial boiler manufacturer and part of Groupe Atlantic, with substantial overlap to Strebel in commercial wall-hung and floor-standing condensing boiler ranges serving contractors and consulting engineers across the UK.
- Grant UK: Grant UK is a UK commercial and renewable heating specialist manufacturing condensing boilers, biomass boilers, and air source heat pumps. Direct product overlap with Strebel's commercial boiler and ASHP portfolio, particularly in public sector and rural commercial applications.
- Daikin UK: Daikin is a global HVAC and heat pump major with substantial UK commercial ASHP operations (Daikin Altherma range). Competes with Strebel S-ASX range on commercial ASHP retrofits for offices, retail, education, and leisure customers, with comparable cascade and BMS integration capabilities.
- ATAG Heating (UK): ATAG Heating is a Dutch-origin commercial heating brand present in the UK selling commercial boilers, water heaters, and associated system components to the same contractor and consulting engineer channel. Closely comparable product mix to Strebel's traditional boiler and calorifier lines.
- Baxi (BDR Thermea Group): Baxi is a major UK commercial boiler and water heater manufacturer within the BDR Thermea Group, directly competing with Strebel's S-CB+ and S-CBX ranges across commercial heating installations. Established UK brand with deep specification influence in commercial and public sector markets.
- NIBE Energy Systems UK: NIBE is a Swedish heat pump specialist with significant UK commercial ASHP operations competing directly with Strebel's S-ASX range. Comparable focus on high-temperature performance for retrofit applications and on decarbonising commercial heating loads.
- Vaillant Commercial UK: Vaillant sells commercial boilers and heat pumps in the UK, with similar product architecture to Strebel's range targeting commercial newbuild and retrofit projects. Strong consulting engineer relationships and comparable focus on efficiency and emissions compliance.
- Bosch Commercial and Industrial Heating: Bosch Commercial and Industrial Heating (operating in the UK via Worcester Bosch) sells a comprehensive range of commercial condensing boilers, water heaters, and air source heat pumps to the same UK commercial heating engineer and contractor channel as Strebel. Direct product overlap across boiler and heat pump categories serving education, healthcare, leisure, and public sector customers.
- Mitsubishi Electric (Ecodan and commercial heating): Mitsubishi Electric sells commercial Ecodan air source heat pumps in the UK competing directly with Strebel's S-ASX range for commercial newbuild and retrofit projects. Comparable product positioning targeting consulting engineers, with substantial R&D and marketing scale advantages.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
Strebel social profiles
Digital presenceStrebel financial estimates
Financial estimateRevenue estimate
Valuation estimate
Strebel leadership team
Management profileNumber of profiles
Profiles8 records
Strebel funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Strebel M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Strebel
What does Strebel do?
Strebel designs, manufactures, supplies and commissions commercial heating equipment including high-efficiency condensing gas boilers (30-600kW), air source heat pumps using Enhanced Vapour Injection (EVI) technology, commercial water heaters, and indirect hot water storage units. The company serves non-domestic building operators and commercial heating engineers with a focus on decarbonisation, ultra-low NOx emissions, and hydrogen-ready boiler platforms.
Is Strebel a public or private company?
Strebel is a private company. It is classified as corporate owned and is currently operating.
When was Strebel founded?
Strebel was founded in 1975. It employs 11 to 50 people.
Where is Strebel based?
Strebel is headquartered in Farnborough, United Kingdom, in the Europe region.
How does Strebel make money?
Six revenue lines are on record. Commercial Heating Equipment Sales are the primary driver. The others are after-Sales Service Contracts, remote Monitoring Packages, commissioning Services, extended Warranty Programs and spare Parts.
Who are Strebel's main competitors?
Direct peers on record are Viessmann UK, Ideal Heating (Groupe Atlantic), Grant UK, Daikin UK, ATAG Heating (UK), Baxi (BDR Thermea Group), NIBE Energy Systems UK, Vaillant Commercial UK, Bosch Commercial and Industrial Heating and Mitsubishi Electric (Ecodan and commercial heating).
Does Strebel have an API?
No public API is recorded for Strebel.
What industry is Strebel in?
Strebel's product category is Commercial Heating Equipment. Its primary akta.pro industry code is IMAHAEAC, Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers), with a secondary code of IMAHAFAF, Industrial Boilers, HRSGs & Steam Generators. Its NAICS code is 333414 and its SIC code is 3433.