Heating and Cooling tenders
145 listings tracked right now · page 1 of 4
Grants and schemes for heat pumps, district heating and clean cooling. The cheques come from UK DESNZ (heat networks and the Boiler Upgrade Scheme), the US DOE, EU LIFE and Horizon, and utility and municipal heat programmes. Listed below are the open heating and cooling tenders and contract notices that landscape produces, taken from each buyer's own notice and re-checked on every refresh.
This is one of the highest-volume procurement areas on the site, because every local authority, housing association, hospital trust and university buys retrofit, heating and building services. Contracts arrive as frameworks and dynamic purchasing systems more often than as single awards, and getting onto the framework is the real competitive event rather than the individual call-off.
This page lists open heating and cooling tenders and public contracts currently tracked by Raise Lens — 145 of them right now, sorted with the soonest deadline first. Every listing has been classified against the sustainability taxonomy rather than matched on keywords, so what appears here is heating and cooling work rather than anything whose description happens to mention it.
46 distinct buyers are publishing the heating and cooling tenders and public contracts on this page. Who is funding matters as much as what: eligibility, reporting burden and the realistic timeline to a decision vary far more between buyers than between individual calls, which is why the listing names the buyer on every opportunity it opens.
48 of these close within the next 30 days. Deadlines are taken from the source listing and re-checked on every refresh, but the originating buyer remains the authority — always confirm against the official notice before you submit.
Request for Expression of Interest - 3rd Party Heat Sources
Lonsdale Energy Corporation · CA
Lonsdale Energy Corporation seeks third-party heat suppliers to feed into its district energy system serving North Vancouver, promoting climate-positive heating alternatives. Bidders should be organizations capable of generating and supplying thermal energy to a municipal district heating network.
Heat Supply Mühlacker | New Energy Center Swimming Pool Construction
Stadtwerke Mühlacker GmbH · DE
A German municipal utility seeks an engineering firm as master planner to design heat supply and energy-centre infrastructure for a public swimming pool renovation. Bidders must be qualified engineering consultants capable of district-heating and building-energy systems design.
Renovation Indoor Pool Essern – Building Design Services
Samtgemeinde Uchte · DE
Renovation and expansion of a 1971 indoor swimming pool facility with comprehensive energy-efficiency upgrades including heat pump, photovoltaic system, LED lighting, and accessibility improvements. Bidders should be architectural/engineering firms or construction companies experienced in building renovation, energy systems integration, and public-sector pool facility projects.
Clynfyw CIC – Renewable Energy & Efficiency Upgrade Project
Cwm Arian Renewable Energy Ltd · GB
Clynfyw CIC seeks design, supply, and installation of a comprehensive renewable energy and energy efficiency system including solar PV, battery storage, heat pumps, and smart controls to reduce carbon emissions and energy costs. Bidders must demonstrate extensive experience in renewable energy installations and system integration for community/care facilities.
RaS_LvBS_Architektenleistungen
Gemeinde Rot am See · DE
The Municipality of Rot am See is procuring architectural and engineering design services for a new three-storey hybrid school building featuring timber-mass construction, photovoltaic roofing, wood-pellet heating, and mechanical ventilation. Qualified architecture and engineering firms with experience in sustainable school buildings, hybrid timber-concrete construction, and renewable energy integration are the target bidders.
Transformation of existing district heating system – Voltastraße, Mönchengladbach
NEW AG · DE
This tender procures planning and design services (HOAI phases 2–4) to transform an existing district heating network on Voltastraße in Mönchengladbach, Germany, based on a prior efficiency-study recommendation and federal heat-network funding (BEW) requirements. Bidders should be engineering/planning firms with district-heating retrofit, energy-efficiency design, and German permitting expertise.
Engineering, design, construction and supervision for school building energy retrofit
РАЙОН "ВЪЗРАЖДАНЕ" · BG
School building retrofit with energy-efficiency measures including insulation, window replacement, heating system upgrade, and lighting conversion to achieve energy class B. Suitable for construction firms, engineering consultancies, and energy-retrofit specialists with design and site supervision capability.
Ynni Ystradau
Ynni Ystradau · GB
Design services for RIBA Stage 3 development of a district heat network powered by water-source heat pumps extracting from a reservoir lake in North Wales, serving ~200 homes and industrial facilities. Bidders must be qualified engineering/architecture consultancies with experience in renewable heating systems, heat networks, and low-carbon technology integration.
Engineering services – Planning Module 1 LPH 2-4 district heating network technical measures Dessau
Dessauer Versorgungs- und Verkehrsgesellschaft GmbH - DVV - Stadtwerke · DE
Engineering planning services for district heating network expansion and optimization in Dessau, Germany, covering network extension, hydraulic design, and system decarbonization. Bidders must be specialized engineering consultancies with district heating and thermal network design expertise.
Pompe termice
Agentia Servicii Publice
This tender procures heat pumps ("Pompe termice") for the Romanian public services agency, with an estimated value of about £659K. It suits an equipment supplier or installer with heat pump supply and installation capacity, though the thin description leaves scope unclear.
Technical assistance for chiller replacement with multipurpose heat pumps, Toledo Parador
Paradores de Turismo de España, S.M.E., S.A. · ES
This tender procures technical assistance for retrofitting a tourism parador's HVAC system, replacing chillers with heat pumps for heating, cooling, and hot water production, plus associated pump system upgrades. Bidders should be HVAC engineering consultants or technical firms with heat-pump retrofit expertise and experience in hospitality or public-building decarbonisation.
Preparation of municipal heat plan for Samtgemeinde Jesteburg
Landkreis Harburg - Zentrale Vergabestelle für die Samtgemeinde Jesteburg · DE
This tender procures the creation of a municipal heat plan for Samtgemeinde Jesteburg, a strategic energy-transition planning document required under German heat-planning law. Bidders should be energy-planning consultancies, engineering firms, or sustainability consultants with expertise in district heating, building-stock decarbonization, and heat-demand modelling.
Engineering services – VgV specialist planning HVAC for Kressbronn indoor pool renovation
Gemeinde Kressbronn a. B. · DE
Engineering design services for HVAC, heating, ventilation, and lighting retrofit of a municipal indoor swimming pool in Germany, targeting energy efficiency and CO₂ reduction. Bidders should be specialized MEP (mechanical, electrical, plumbing) design firms or engineering consultants with experience in building-systems renovation and energy-performance optimization.
Input is already English, so returning it unchanged. Renovation of Adolph Kolping education centre Würzburg: building services planning HOAI
Kolping-Mainfranken GmbH · DE
This tender procures technical building systems (HVAC, electrical, plumbing, renewable energy) for a comprehensive energy and functional renovation of a special-needs education centre in Würzburg, Germany. Bidders should be MEP engineering firms, building-systems integrators, or sustainability-focused technical consultants with experience in school retrofits and energy-efficient building design.
Repair and maintenance of central heating – framework agreement for hydraulic balancing
STADT UND LAND Wohnbauten-Gesellschaft mbH · DE
Framework contract for hydraulic balancing and optimization of water-based heating systems in residential buildings, complying with German energy regulations (GMod §60b/c). Bidders must be HVAC service providers with expertise in hydronic system commissioning and measurement techniques.
School Group Regeneration En Sauvy – HVAC Engineer Phases SIA 31-53
Ville de Lancy (architech sa) · CH
City of Lancy seeks a heating/ventilation/regulation engineer to design and deliver HVAC systems for a school complex renovation project in Switzerland. Bidders must be specialized engineering firms with HVAC design expertise and experience in educational building retrofits.
Heat pumps 50 kW el and 100 kW el
Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH · DE
GIZ is procuring heat pump units rated 50 kW el and 100 kW el for delivery to unspecified sites in Germany within 200 km of Eschborn, with addresses confirmed after award. Suited to heat pump manufacturers or equipment suppliers and distributors able to supply and deliver large-capacity units in Germany.
Energy recovery system optimization: pre-purchase of equipment
Musée de la civilisation · CA
The Musée de la civilisation seeks to replace an existing heat pump with two new chillers as part of energy recovery system optimization. Bidders should be HVAC equipment suppliers or refrigeration specialists capable of supplying and potentially installing commercial cooling equipment.
BLB NRW DU / Amtsgericht Duisburg Ruhrort/ Modernisierung Heizungsanlage/ Generalplanung/ (020-26-00213)
Bau- und Liegenschaftsbetrieb NRW Duisburg · DE
This tender procures general planning services (master planning across architecture, MEP, structural, acoustics, geotechnics, and logistics) for modernizing the heating system at Duisburg District Court with an energy-efficient replacement. Bidders should be multidisciplinary engineering/architecture firms with experience in building-systems retrofit and coordinated design delivery.
Non-Comprehensive Annual Maintenance Contract of Solar Plants installed at roof top of various Hostel and Academic zone building and Non-Comprehensive AMC of Solar water heating system at IIT Madras for the period from 01-12-2026 to 31-03-2028
Indian Institute of Technology Madras · IN
IIT Madras is procuring a non-comprehensive annual maintenance contract for rooftop solar PV plants on hostel and academic buildings, plus solar water heating systems, for December 2026 to March 2028. Local maintenance contractors with solar PV and solar thermal servicing experience are the natural fit.
Feasibility study and specialist planning for heat generation
Stadt Wildeshausen · DE
Feasibility study and detailed engineering design for optimized heat generation systems combining biogas storage power plants, large heat pumps, power-to-heat, and thermal storage for two municipal districts. Bidders should have expertise in renewable heating technology integration, thermal system design, and energy transition planning.
Planning services for heating network construction stages 2027–2029; Aschheim, Feldkirchen, Kirchheim
AFK-Geothermie GmbH · DE
Planning and design services for district heating network expansion across three municipalities near Munich, covering distribution pipelines, building connections, and transfer stations for 2027–2029. Bidders should be engineering consultancies with district heating and geothermal infrastructure expertise.
ENTEGA Babenhausen heating plant air heat pump expansion, Lot 1 planning
ENTEGA AG · DE
ENTEGA AG seeks engineering design services for a 2–3 MWth air-source heat pump to decarbonize the Kaisergärten district heating network in Babenhausen, Germany, with focus on thermal equipment, integration, and noise compliance. Bidders should be specialized HVAC/heat-pump design engineers or thermal systems consultants with district-heating retrofit experience.
Owner representation and assistance for renewable district heating/cooling projects
DIB - Elektrizitätswerk der Stadt Zürich (ewz) · CH
This tender seeks owner's representatives and engineering consultants for two major district heating/cooling projects in Zurich: CoolCity (downtown renewable heat/cold from lake water) and Centre-Sud (renewable heat network for southern districts). Bidders must be architecture/engineering firms with master-planning and project-management expertise in large-scale thermal infrastructure.
CoolCity, TP0 surveying services for the client/developer
Elektrizitätswerk der Stadt Zürich (ewz) · CH
This tender procures surveying and engineering services for the CoolCity district heating and cooling network in Zurich, which uses lake water as a renewable thermal source. Bidders should be surveying/engineering firms with experience in large-scale thermal infrastructure and urban energy networks.
Municipal Heat Planning
Stadt Eberswalde · DE
The Stadt Eberswalde seeks municipal heat planning services to develop a strategy for decarbonising local heating supply, as required under German heat-planning rules. A consultancy or engineering firm with energy-planning and municipal experience would fit best.
City of Lacombe - Request for Proposal - Municipal Facilities Deep Energy Retrofit Feasibility Study & Decarbonization Roadmap
City of Lacombe · CA
The City of Lacombe seeks energy engineering consultants to conduct a Deep Energy Retrofit Feasibility Study and Decarbonization Roadmap for five municipal facilities, establishing baseline energy models and phased capital pathways to achieve deep GHG reductions by 2027. Qualified bidders are energy engineering consultants with expertise in building energy modelling, retrofit feasibility analysis, and decarbonization strategy development.
Copy Flawil District Heating – Central Energy Plant BKP 246: Heat Pump System using R-717 (Ammonia)
Technische Betriebe Flawil (TBF) · CH
Procurement of an ammonia (R-717) heat pump system for a district heating energy centre powered by wastewater heat recovery in Switzerland. Bidders must be heat pump manufacturers or systems integrators with expertise in large-scale industrial heat pump technology and ammonia refrigerant systems.
Acquisition, installation and commissioning of solar panels for hot water and photovoltaic plant at CNSS Marrakech polyclinic
POLYCLINIQUE CNSS – MARRAKECH · MA
This open simplified tender procures, installs and commissions solar thermal panels for hot water and a photovoltaic power plant for electricity supply at the CNSS Polyclinic in Marrakech. It suits local Moroccan solar installers and renewable energy integrators with hospital-grade installation capacity.
AeroPark 2 and 3 Würselen Merzbrück – Energy Concept
Aachener Kreuz Merzbrück GmbH & Co. KG · DE
This tender procures development of an integrated energy concept for AeroPark 2 and 3 covering electricity, heating, cooling, mobility, and hydrogen across multiple usage scenarios. Bidders should be energy-planning consultancies or engineering firms with expertise in multi-sector energy system design, decarbonization strategy, and financial/operational modelling.
temporary heating solution, Dammstrasse 25, Zug
Municipality of Zug, Finance Department/Real Estate Division · CH
Municipality of Zug seeks a temporary heating solution using a mobile wood pellet system with full operational services (planning, supply, operation, maintenance, decommissioning) for a building at Dammstrasse 25. Bidders should be energy service providers or heating contractors experienced in biomass heating systems, 24/7 facility management, and renewable energy deployment.
Energy Transition Master Plan (PDTE) – Decarbonization Engineering
Université de Montréal - Direction des immeubles · CA
University of Montréal seeks mechanical-electrical engineering services to develop a decarbonization transition plan across multiple campus buildings. Qualified bidders must have expertise in energy audits, decarbonization strategy, and HVAC/electrical systems retrofit planning for large institutional portfolios.
ES 13 Energy Renovation of 13 Sites: HVAC and Controls Planning Framework
Landeshauptstadt Düsseldorf, Der Oberbürgermeister, Amt für Recht, Vergabe und Versicherungen, Zentrale Vergabestelle · DE
Framework contract for planning and design of HVAC and building automation systems (HLS/MSR) across 13 municipal sites undergoing energy retrofit in Düsseldorf. Bidders must be engineering consultancies with expertise in building services design and energy-efficiency renovation.
Energy efficiency retrofit of Alexandru Davila school, Building C1: design and works
MUNICIPIUL PITESTI - CONSILIUL LOCAL AL MUNICIPIULUI PITESTI · RO
The Municipality of Pitesti is procuring design, technical verification, designer site assistance, and construction-assembly works to improve the energy efficiency of Corp C1 at Scoala Gimnaziala Alexandru Davila, over a 12-month period. It suits a construction or design-build contractor with Romanian public-works experience and capacity to subcontract specialist energy-retrofit design.
VE 42 Untertagepumpe
Energie und Wasser Potsdam GmbH · DE
Energie und Wasser Potsdam GmbH is procuring up to three downhole pumps to extract thermal water for geothermal installations at its HKW Süd plant and possibly Gartenstraße. Suited to pump manufacturers or suppliers with geothermal downhole-pump experience, including SMEs that can supply or subcontract the equipment.
Energy carrier conversion ETU - TGA planning for lots 1 and 2
WBM Wohnungsbaugesellschaft Berlin-Mitte mbH · DE
Planning and engineering services for conversion of gas heating to district heating in Berlin residential buildings (2027–2029), including site surveys, system design, hydraulic balancing, and station retrofits across two planning zones. Bidders must be qualified MEP/TGA planning firms with experience in district-heating system design and building retrofit engineering.
Heating network Rottweil
ENRW Energieversorgung Rottweil GmbH & Co. KG · DE
This tender procures planning and engineering services for a district heating centre to support the transformation of two existing heat networks in Rottweil, Germany. Bidders should be engineering consultancies or design firms with expertise in district heating system design, thermal infrastructure, and heat network modernization.
BEW Transformation Plan for Templin South District Heating Network
FWG Fernwärmegesellschaft mit beschränkter Haftung Templin · DE
This tender procures consulting, modelling, planning and coordination services to decarbonize the Templin South district heating network and develop a BEW transformation plan, with optional detailed design services. Bidders should be energy transition consultants, heating-network engineers, or sustainability planning firms with expertise in district-heating decarbonization and German regulatory frameworks.
Engineering design services for building MEP installations – Rottweil district heating
ENRW Energieversorgung Rottweil GmbH & Co. KG · DE
Engineering design services for mechanical and electrical installations in a district heating network (Wärmenetz Rottweil) operated by a German utility. Bidders should be engineering consultancies with expertise in HVAC, building systems design, and district heating infrastructure.
Energy and related services – BEW transformation plan district heating network Templin Süd
FWG Fernwärmegesellschaft mit beschränkter Haftung Templin · DE
FWG Templin seeks integrated planning and engineering services for decarbonizing a district heating network (6,250 MWh/a) via deep geothermal, heat pumps, and system modeling. Bidders must offer multi-disciplinary energy engineering, geothermal expertise, and transformation-plan compliance under Germany's BEW subsidy scheme.
Building audits and studies under ACTEE energy efficiency programme for local authorities
Territoire d'Énergie Flandre (59) · FR
Framework agreement for energy audits and building studies on public-sector real estate across Flandre territory, supporting decarbonization and efficiency retrofits. Thermal engineering bureaux and energy-efficiency consultancies are the target bidders.
Purchase and commissioning of an aerothermal boiler
Mancomunidad de los Municipios Rurales del Lea-Junta de Gobierno · ES
This tender procures the purchase and installation of an aerothermal heat pump system for a rural municipalities association in Spain. Bidders should be HVAC/heating system suppliers or installers with experience in heat pump deployment and commissioning.
Combined Heat and Power Units and Biogas Installations
Wetterskip Fryslân · NL
This tender procures maintenance, parts, revision, and inspection services for combined heat and power (CHP) units at three Dutch water board facilities and biogas installation upkeep. Bidders should be specialized HVAC/energy-plant service providers with CHP and anaerobic-digestion expertise.
Integrated Urban Development Concept (ISEK) for Cuxhaven
Stadt Cuxhaven · DE
City of Cuxhaven seeks an integrated urban development strategy (ISEK 2047) addressing offshore wind, housing, climate adaptation, demographics, mobility transition, and tourism. Bidders should be urban planning/strategy consultancies with experience in multi-sector municipal development frameworks.
Acquisition and installation of solar refrigeration and lighting equipment
UNDP · TG
UNDP tender for the supply and installation of solar-powered refrigeration and lighting equipment in Togo. Suited to solar installers, cold-chain equipment suppliers and SMEs with off-grid solar delivery experience.
Villetaneuse geothermal production well: supply of submersible electric pump
Syndicat Mixte des Réseaux d'Energie Calorifique - SMIREC · FR
This tender procures a submersible production pump for a geothermal well in Villetaneuse, France, with optional pressure sensor and electrical connection box. Bidders should be pump manufacturers or suppliers with geothermal/deep-well equipment expertise.
Dampfverdichtungssystem in Containerbauweise
Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR) · DE
DLR seeks procurement of a steam compression system in container design for a two-stage turbo-radial compressor operating on water vapor, part of a novel high-temperature heat pump for industrial waste-heat recovery in a paper mill. Bidders should have expertise in custom thermal/mechanical systems, compressor design, and EU-funded industrial energy projects.
Design and execution works to increase geothermal energy production and heat networks
Orasul Calimanesti · RO
Design and construction of district-heating mains and geothermal energy production infrastructure for Calimanesti, Romania, including permits, technical documentation, and as-built delivery. Bidders must be engineering/construction firms capable of geothermal systems, district heating networks, and full project management from permitting through handover.