Giesbers InstallatieGroep

What Giesbers InstallatieGroep does

Giesbers InstallatieGroep is a Dutch installation services contractor headquartered at Sevillaweg 52, Rotterdam, providing heating, plumbing, and ventilation installation for residential new-build and renovation projects. Founded in 1975, the company has operated for 50 years and positions itself around "passie voor installatietechniek," emphasizing technical craftsmanship combined with a human-centered approach. Its service portfolio is organized into three integrated lines — Ventilatie (ventilation), Loodgieterswerk (plumbing), and Verwarming (heating) — delivered as a unified sustainable-installation offering targeting energy efficiency, indoor comfort, and future-ready building performance.

Operationally, Giesbers employs roughly 275 craftsmen (vakmensen) and executes approximately 80 projects per year across South Holland, with named reference projects including District U (Vlaardingen), Park3 en Arnoldus van Os (Benthuizen), De Taanderij (Maassluis), and RottaNova (Rotterdam). The business model is project-based, contract-driven professional services: customers (predominantly residential developers, housing corporations, and renovation property owners) acquire Giesbers through direct contact (phone 010 298 23 23 and [email protected]), with the company website functioning as the primary marketing and project-portfolio showcase. There is no self-service or digital ordering channel. The firm appears to operate within the TBI Holdings ecosystem of Dutch technical-services companies, evidenced by its asset paths being served under "/sites/tbi-nl/" on the corporate website.

The company engages in ongoing workforce-development activity — apprentice supervision ("Praktijkbegeleiding in uitvoering"), JINC "Baas van Morgen" youth employment partnership, and Earth Day participation — which signals investment in talent pipeline and sustainability positioning. Public financial information is not disclosed: revenue, ownership structure, and investor backing are not visible in source material. Recent corporate activity includes a change in board/directorship composition announced on 5 June 2026. The company is private, operating, and headquartered in Rotterdam with geographic reach concentrated in the South Holland region of the Netherlands.

Name

Giesbers InstallatieGroep

Legal name

Giesbers InstallatieGroep

Website

https://giesbers.com

Company type

Private

Founded year

1975

Operating status

Operating

Headcount range

251–500 employees

Short description

Giesbers InstallatieGroep is a Rotterdam-based Dutch installation services contractor delivering heating, plumbing, and ventilation installations for residential new-build and renovation projects. The firm employs 275+ craftsmen and executes 80+ projects annually across South Holland.

Ownership category

akta.pro rank

Product category

Building Installation Services

NAICS

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

akta.pro primary industry

Residential Plumbing Fixture Installation & Repair (HSAOAAAA)

Keywords

• HVAC installation services
• Building ventilation systems
• Plumbing installation services
• Heating system installation
• Residential construction services

Headquarters

HQ city

Rotterdam

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Marketing or Sales

Revenue model

1. Installation services for buildings: Giesbers generates revenue through contracted installation projects for residential new construction and renovation. Services include ventilation (Ventilatie), plumbing (Loodgieterswerk), and heating (Verwarming) systems. Projects are delivered by a team of 275+ craftspeople across approximately 80+ projects per year, indicating a project-based, service contracting revenue model.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Giesbers InstallatieGroep designs and installs sustainable building installations covering ventilation, plumbing, and heating systems for residential new construction and renovation projects in the Netherlands. Services are delivered by a team of 275+ craftspeople (fte), completing more than 80 projects per year. The company operates as a project-based installation contractor with direct customer engagement through phone and email.

Product overview

Giesbers InstallatieGroep is an installation services company offering a portfolio of three integrated services for residential new construction and renovation: Ventilatie (ventilation), Loodgieterswerk (plumbing), and Verwarming (heating). These services are delivered as a unified offering focused on creating sustainable, energy-efficient building installations that support comfortable living and well-being. The company operates as a single-service business model rather than a software platform, with services provided by a team of 275 professionals (fte) completing over 80 projects annually across the Netherlands.

Differentiator

Problem solved

Functional benefit

Products and services

• Ventilatie (Ventilation) Installation services for building ventilation systems, supporting indoor air quality and sustainable building performance in residential new construction and renovation projects.
• Loodgieterswerk (Plumbing) Installation services for plumbing systems in residential new construction and renovation projects, delivered as part of an integrated building installations offering.
• Verwarming (Heating) Installation services for heating systems in buildings, focused on energy-efficient and sustainable solutions for residential new construction and renovation.

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators4 records

Recent moves3 records

Expansion highlights4 records

Direct peers

• Unica: One of the largest Dutch technical installation contractors, providing HVAC, plumbing, and electrical services for residential and commercial buildings. Closely comparable to Giesbers in core service offering and Dutch market focus, with a significantly larger national footprint.
• Kuijpers: Dutch installation services firm specializing in HVAC, plumbing, and electrical installations for residential, commercial, and industrial buildings. Directly comparable in service mix and Dutch market positioning, with broader geographic reach across the Netherlands.
• Croonwolter&dros: Major Dutch technical installer covering HVAC, plumbing, electrical, and automation for buildings and infrastructure. Comparable service portfolio (ventilation, plumbing, heating) with a national footprint and broader scope including electrical.
• HOMIJ Technische Installaties: Dutch building services installer focused on HVAC, plumbing, and electrical installations for commercial and residential projects. Directly comparable mid-to-large Dutch installation contractor with similar multi-trade positioning.
• Van Dorp Installaties: Dutch installation company offering HVAC, plumbing, electrical, and maintenance services across residential, commercial, and industrial segments. Comparable in service breadth and Dutch market focus.
• Hoppenbrouwers Techniek: Dutch technical installation specialist providing HVAC, plumbing, electrical, and maintenance services, primarily for residential and utility projects. Comparable multi-trade installer with a strong regional presence in the Netherlands.
• Feenstra: Dutch installer specializing in heating, plumbing, and ventilation for residential customers, including heat pumps and sustainable installations. Highly comparable in service mix and Dutch residential focus, with stronger consumer/utility side.

Broad incumbents

• Heijmans: Large Dutch construction and real-estate group with significant installation services for residential and non-residential projects. Overlaps with Giesbers in Dutch building installations but operates at substantially larger scale and broader scope including property development.
• BAM Group: Major Dutch-headquartered construction group with installation capabilities for buildings across residential and commercial segments. Broad incumbent with a much wider portfolio and geographic footprint than Giesbers.
• Dura Vermeer: Dutch construction and infrastructure company with residential building and installation capabilities. Provides broader construction services but overlaps with Giesbers in Dutch residential installation work.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/giesbersinstallatiegroepbv

Revenue estimate

Valuation estimate

Number of profiles

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 Giesbers InstallatieGroep