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KÄLTE-KLIMA Group – Fertigung

Planning, implementation and service of refrigeration and air conditioning systems as well as heat pumps from 1 kW to 2,000 kW.

KÄLTE-KLIMA Group Logo

KÄLTE-KLIMA GmbH Bertuleit & Müller

31785 Hameln · 37154 Northeim · 33649 Bielefeld · 01259 Dresden · 06792 Sandersdorf-Brehna · 85609 AschheimNew on Amplifa

1979Founded in Hameln
approx. 250Employees
6Locations in Germany
1–2,000 kWPower range of the systems
approx. 1,000new refrigeration and air conditioning systems per year

About the KÄLTE-KLIMA Group

The KÄLTE-KLIMA Group, headquartered in Hameln, was founded in 1979 as the engineering office Bertuleit & Bökenkröger GmbH and today comprises six subsidiaries at six locations in Germany. With around 250 employees, the company plans, develops and implements refrigeration systems for industry, commerce and supermarkets, air conditioning systems among other things for retail, as well as heat pumps and special units in a power range from 1 kW to 2,000 kW. Around 600 projects are implemented annually and approximately 1,000 new refrigeration and air conditioning systems are built; more than 2,000 regular customers are served with over 40,000 installed systems. The service offering includes maintenance, a 24-hour emergency service and leak testing. Major customers are served nationwide through the joint venture temtec Kälte-Klima GmbH. Industry focal points are food supply and retail, healthcare, research as well as commerce and industry.

Site
Hameln
Processes
Refrigeration technology for industry and commerce, Supermarket refrigeration, Air conditioning systems (shop air conditioning), Heat pumps, Leak testing, Maintenance and service (around the clock / emergency service), Planning, development and implementation of refrigeration and air conditioning systems, special, Refrigeration technology (industry, commerce, supermarkets)
Materials
Industrial and commercial refrigeration technology, Supermarket refrigeration technology, Air conditioning systems / VRF systems, Heat pumps, Leak testing, Maintenance and 24h emergency service
Certificates
Leak testing
Founded
1979
Employees
approx. 250
Industries
Food supply / retail, Healthcare / medical care, Research and services, Commerce and industry, Food supply/retail, Healthcare/medical care
  1. 01

    Consulting and planning

  2. 02

    Engineering and special unit manufacturing

  3. 03

    Installation and commissioning

  4. 04

    Maintenance, 24h emergency service and leak testing

Areas of expertise and processes

KAELTE

Industrial and commercial refrigeration technology

Planning and implementation of refrigeration systems for industrial and commercial customers from 1 to 2,000 kW.

SUPER

Supermarket refrigeration technology

Refrigeration technology for daily food supply in the supermarket sector.

KLIMA

Air conditioning systems / VRF systems

Air conditioning of, among other things, shops, furniture stores and commercial spaces.

WP

Heat pumps

Heat pumps for heating residential and commercial buildings.

DIChtheit

Leak testing

Regular leak testing of refrigeration and air conditioning systems in accordance with legal requirements.

SERVICE

Maintenance and 24h emergency service

Service team available around the clock for maintenance and fault clearance.

Locations

Standort Hameln

Hameln

DE

Head office of the parent company Bertuleit & Bökenkröger GmbH; refrigeration technology, air conditioning systems,

Part weight / size
1–2,000 kW system capacity
Lot size
approx. 600 projects/year group-wide
Materials
Refrigeration, air conditioning and heat pump technology
  • Planning and engineering
  • Special unit manufacturing
  • Service and leak testing
Standort Northeim

Northeim

DE

Branch Joh. Mattern KÄLTE-KLIMA GmbH, Northeim-Kassel region

Standort Bielefeld

Bielefeld

DE

Branch ART Bertuleit KÄLTE-KLIMA GmbH, Bielefeld-Paderborn region

Standort Dresden

Dresden

DE

Branch KÄLTE-KLIMA GmbH Dresden, Dresden-Chemnitz region

Standort Sandersdorf-Brehna

Sandersdorf-Brehna

DE

Branch KÄLTE-KLIMA GmbH Halle-Leipzig, Halle-Leipzig region

Standort Aschheim

Aschheim

DE

Branch Bavaria KÄLTE-KLIMA GmbH, Munich region

Systems and installations

Chilled water distribution
Chilled water distributionIndustrial refrigeration technology · Industry
Heat pump
Heat pumpHeat pump technology · Residential buildings
VRF air conditioning system
VRF air conditioning systemAir conditioning · Commercial/retail
Supermarket refrigeration technology
Supermarket refrigeration technologyRefrigeration technology · Food supply

Inside the production

Head office of the KÄLTE-KLIMA Group in Hameln
Head office of the KÄLTE-KLIMA Group in Hameln
Apprenticeship as a mechatronics technician for refrigeration technology
Apprenticeship as a mechatronics technician for refrigeration technology
Leak testing for refrigeration and air conditioning systems
Leak testing for refrigeration and air conditioning systems
24h emergency service for refrigeration and air conditioning systems
24h emergency service for refrigeration and air conditioning systems
New F-Gas Regulation (EU) 2024/573
New F-Gas Regulation (EU) 2024/573
Corporate video of the KÄLTE-KLIMA Group
Corporate video of the KÄLTE-KLIMA Group

Industries

Food supply / retailHealthcare / medical careResearch and servicesCommerce and industryFood supply/retailHealthcare/medical care

Processes & technical limits

ProcessesToleranceMax. partWeightLot sizeMaterials
Refrigeration technology for industry and commerceEngineering––1 kW – 2000 kW––
Supermarket refrigerationEngineering––1 kW – 2000 kW––
Air conditioning systems (shop air conditioning)Engineering–––––
Heat pumpsEngineering–––––
Leak testingTesting–––––
Maintenance and service (around the clock / emergency service)Installation–––––
Planning, development and implementation of refrigeration and air conditioning systems, specialEngineering–––––

Additional services

Refrigeration technology (industry, commerce, supermarkets)Air conditioning systems (including shop air conditioning)Heat pumpsService/maintenance, 24h emergency serviceLeak testingPlanning and project implementation (1 kW to 2,000 kW)Key account support via temtec Kälte-Klima GmbH

Reference customers

more than 2,000 long-standing regular customers

Quality and testing

The service offering includes around-the-clock maintenance, a 24-hour emergency service and leak testing for over 40,000 installed systems.

EvidenceHameln
Leak testing

History

  1. 1979

    Foundation of the engineering office Bertuleit & Bökenkröger GmbH in Hameln by Reiner Bertuleit and Kurt Bökenkröger; the cornerstone of the KÄLTE-KLIMA Group

  2. 2018

    Jan Bökenkröger joins the company as assistant to the management

  3. 2021

    After 41 years, Kurt Bökenkröger transfers his business shares to his son Jan Bökenkröger

  4. 2023

    Reiner Bertuleit is awarded the Order of Merit of the Federal Republic of Germany

  5. 2024

    Daniel Begere becomes Managing Director as of 01.01.2024; Reiner Bertuleit leaves the management board and remains a shareholder (50%) and consultant

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