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Haustechnik Will – Fertigung

Building services specialist for heating, plumbing and photovoltaics from Melbeck near Lüneburg

HA

Will GmbH

Melbeck · Am Rischpool 14, 21406New on Amplifa

1984Founded
48Employees
MelbeckLocation
HRB 1154, Amtsgericht LüneburgCommercial Register

About Us

Will GmbH, founded in Melbeck in 1984, is a building services specialist specialising in ecological and energy-efficient building technology. Its 48-strong team implements heating systems with heat pumps (air-to-water and brine-to-water), biomass boilers (logs, pellets, wood chips) and solar thermal, as well as plumbing installations for new builds, modernisations and complete renovations. In the photovoltaic sector, systems are offered completely from a single source – from roof installation and electrical connection to grid operator registration, complemented by battery storage, power optimisers and wallboxes. The scope of services includes consulting, planning, heating load calculations, system sizing, subsidy advisory services, maintenance, repair, service callouts including emergency service, and warranty processing. Reference projects include, among others, the Hanseviertel housing project in Lüneburg (40 residential units) and the new construction of a production hall with 3,000 m² of industrial technology for Der Lecker Bäcker. Its location and catchment area is the Lüneburg/Melbeck region in Lower Saxony.

Site
Melbeck
Processes
Heating installation (heat pumps, biomass, solar thermal, wall heating), Plumbing installation (new builds, modernisation, renovation), Photovoltaic system installation incl. battery storage, wallboxes, grid operator registration, Customer service: maintenance, repair, service callouts, emergency service, Consulting, Planning and Quotations, Assistance with Subsidy Applications, Heating Load Calculation and System Sizing, Renovation, Planning and Execution in Existing Buildings
Materials
Copper (pipework heating/plumbing), Plastic (piping systems), Copper, Plastic
Founded
1984
Employees
48
Industries
Building Services, Heating Technology, Plumbing Installation, Photovoltaics, Energy Technology
  1. 01

    Consulting and Planning

  2. 02

    Heating Load Calculation and System Sizing

  3. 03

    Quotations and Subsidy Advisory

  4. 04

    Installation and Commissioning

  5. 05

    Maintenance, Repair and Service Callouts

  6. 06

    Warranty Processing

Materials and Systems

Cu

Copper

Pipework for heating and plumbing installations.

KST

Plastic

Piping systems for plumbing and heating applications.

Locations

Standort Melbeck

Melbeck

DE

Headquarters

Materials
Copper, Plastic
  • ETA wood log, pellet and wood chip boilers
  • Wolf heat pumps (air-to-water, brine-to-water)
  • Solvis Max heating system
  • SolarEdge battery storage
  • SMA inverters and photovoltaic equipment

Services

Photovoltaic System
Photovoltaic SystemRoof installation and connection · Energy Technology
Heat Pump
Heat PumpAir-to-water/brine-to-water installation · Heating Technology
Biomass Boiler
Biomass BoilerETA logs, pellets, wood chips · Heating Technology

Inside the production

The Haustechnik Will team
The Haustechnik Will team
Managing Directors Jonas Kalz and Lennart Hild
Managing Directors Jonas Kalz and Lennart Hild
Jonas Kalz, Managing Director
Jonas Kalz, Managing Director
Lennart Hild, Managing Director
Lennart Hild, Managing Director

Industries

Building ServicesHeating TechnologyPlumbing InstallationPhotovoltaicsEnergy Technology

Processes & technical limits

ProcessesToleranceMax. partWeightLot sizeMaterials
Heating installation (heat pumps, biomass, solar thermal, wall heating)Assembly––––Copper, Plastic
Plumbing installation (new builds, modernisation, renovation)Assembly––––Copper, Plastic
Photovoltaic system installation incl. battery storage, wallboxes, grid operator registrationAssembly–––––
Customer service: maintenance, repair, service callouts, emergency serviceTesting–––––

5 Anlagen & Maschinen

MachineManufacturer / modelQuantityWorking areaYear builtSite
Wood log, pellet and wood chip boilersETA Heiztechnik–––Melbeck
Heat pump (air-to-water, brine-to-water)Wolf–––Melbeck
Buffer tank / heating systemSolvis Solvis Max–––Melbeck
Battery storage systemsSolarEdge–––Melbeck
Inverters / photovoltaic equipmentSMA Solar Technology–––Melbeck

Additional services

Consulting, Planning and QuotationsAssistance with Subsidy ApplicationsHeating Load Calculation and System SizingRenovation, Planning and Execution in Existing BuildingsMaintenance, Repair and Service Callouts incl. Emergency ServiceWarranty ProcessingPhotovoltaics Completely from a Single Source (Roof Installation, Electrical Connection, GridEmergency Service outside Business Hours

Reference customers

Der Lecker Bäcker (new production hall, 2024)Hanseviertel housing project / querbeet Lüneburg (2023)

History

  1. 1984

    Company founded by master plumber Horst Will

  2. 1989

    Partnership with heating engineer Jörg Dittmer in the fifth year

  3. 2019

    Jonas Kalz and Lennart Hild take over management from Horst Will and Jörg Dittmer

  4. 2023

    46 photovoltaic systems installed (over 1,000 modules, over 400 kWp); Hanseviertel housing project with 40 residential units

  5. 2024

    33 photovoltaic systems (over 300 kWp), 68 heat pumps installed, new building for Der Lecker Bäcker

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