Weijerseikhout

What Weijerseikhout does

Weijerseikhout B.V. is a Dutch specialist contractor founded in 1958 and headquartered in Groesbeek, Netherlands, focused on the renovation, insulation, and sustainability upgrading of pitched (hellende) roofs on existing residential buildings. The company employs approximately 100 people across two regional branches — Weijerseikhout Oost (Groesbeek) and Weijerseikhout Zuidwest (Rotterdam, integrated from the 2023 Hofman Dakwerken acquisition) — and operates nationwide (landelijke dekking) with a predominantly own, fixed, VCA-certified workforce. Its primary customers are Dutch social housing corporations (woningcorporaties) and large property managers, with secondary work for monument/heritage owners, construction/maintenance contractors, and developers; the company explicitly does not serve individual homeowners.

The core technology is a proprietary in-house prefab manufacturing capability located in a 3,000m² factory in Zeeland (NB), producing lightweight prefabricated roof insulation elements — including the flagship RealGreen Reno Light and SuperLight systems, made of more than 98% biological materials such as sheep's wool, wood fiber, straw, hemp, and flax, with BCRG-verklaring certification. Elements are delivered to site pre-fitted with pan laths, foils, roof windows, and flora/fauna provisions, accelerating installation and reducing weather dependency. Offerings are organised around four service modules — Advies (inspection/advisory), Renovatie (execution), Prefab (factory-produced elements, sold both for own projects and to third-party roofers), and Service & Onderhoud (maintenance subscriptions) — combined with a roof systems catalogue spanning tile, steel, green, biobased, and solar-integrated systems. A 2019 co-development with Kingspan Unidek underpins the prefab insulation system, and the company is driving toward 100% biobased dakelementen.

The business model is B2B project-based professional services plus a growing prefab product revenue stream. Pricing is not publicly disclosed; quotes are project-specific and the company explicitly declines to serve particulieren (individual homeowners). Distribution relies on direct enterprise field sales and account management targeting housing corporations, supplemented by cross-referrals within the Carefos specialist group (joined January 2022), which bundles pitched-roof, flat-roof, solar, insulation, glazing, and fall-protection services for housing corporations seeking complete building-envelope renovation. Revenue is not publicly disclosed but is supported by a project portfolio that includes individual pilots (20 homes in Oss), mid-sized contracts (70-160 homes), and flagship multi-hundred-unit programs (1,300 homes in Vreewijk Rotterdam; 6,000+ solar panels on 5,000 Woonzorg Nederland homes; ~300 homes with 190 prefab dormers in Hilversum).

Name

Weijerseikhout

Legal name

Weijerseikhout B.V.

Website

https://weijerseikhout.nl

Company type

Private

Founded year

1958

Operating status

Operating

Headcount range

51–100 employees

Short description

Weijerseikhout B.V. renovates and insulates pitched roofs for Dutch social housing corporations, property managers, and contractors, using in-house prefab biobased roof elements manufactured at its Zeeland factory. It is a Carefos group subsidiary.

Ownership category

akta.pro rank

Product category

Roof renovation services

NAICS

Roofing Contractors (23816), Roofing Contractors (238160)

SIC

Asphalt Paving & Roofing Materials (2950)

akta.pro primary industry

Roof Installation & Replacement (HSAPAKAA)

akta.pro secondary industries

Roof Repair & Leak Remediation (HSAPAKAB), Roof Inspection, Preventive Maintenance & Tune-Ups (HSAGAKAH), Roof Drainage Components Repair (Gutters/Downspouts/Scuppers as Roof-Related) (HSAGAKAL), Roof Ventilation & Attic Venting Upgrades (HSAPAKAI)

Keywords

• Pitched roof renovation
• Prefab roof insulation
• Biobased roof systems
• Social housing renovation
• Roof maintenance services

Headquarters

HQ city

Groesbeek

HQ country

Netherlands

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Marketing or Sales

Revenue model

1. Roof Renovation and Retrofitting Services: Core revenue stream from complete roof renovation, insulation, and sustainability upgrades for pitched roofs of existing residential buildings. Services range from advisory, planning, and permitting through full execution and handover. Project sizes vary from individual homes to hundreds of units.
2. Prefab Roof Elements Sales: Production and sale of prefabricated roof insulation elements manufactured in-house for use on own projects and for sale to other roofing specialists, contractors, and maintenance parties. Scalable production from 3000m2 facility in Zeeland (NB).
3. Solar System Integration: Installation and integration of solar panel systems on renovated roofs, delivered in partnership with Volting Energy Solutions (Carefos group company). Revenue generated through project-based installation services.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Weijerseikhout renovates and sustains pitched roofs in the Netherlands, offering advisory inspections, full roof renovation, in-house manufactured prefabricated roof insulation elements (including biobased RealGreen systems), and nationwide service and maintenance. The company works exclusively on large-scale projects for housing corporations, property managers, construction/maintenance partners, and monument owners, combining technical expertise with its own prefab factory and primarily own, fixed workforce.

Product overview

Weijerseikhout operates as a multi-product, full-service roof renovation company offering a unified service lifecycle covering advisory (dakinspecties), renovation execution, proprietary prefabricated roof element production, and ongoing service & maintenance. Its product portfolio is organized around two pillars: (1) Service modules — Advies, Renovatie, Prefab Dakelementen, and Service & Onderhoud — which form the core customer journey; and (2) Specialized roof system products — Staaldaken, Pannendaken, Groendaken, Biobased Daksystemen, Solar Daksystemen, and the flagship proprietary RealGreen Reno Light and SuperLight biobased roof elements — which are selected based on the specific building type and customer need. All services are delivered by the company's own workforce across two regional branches (Oost and Zuidwest), with prefab elements manufactured in-house at the Zeeland factory.

Differentiator

Problem solved

Functional benefit

Products and services

• Advies (Roof Inspection and Advisory) Roof inspection and advisory service delivering quickscans and comprehensive dakinspecties to assess current roof condition and map out sustainability improvement opportunities including insulation upgrades, energy generation, and environmental-saving measures for housing corporations and property managers.
• Renovatie (Roof Renovation) Full roof renovation service for pitched roofs of existing residential buildings, covering removal of existing roofing, installation of insulation elements, and finishing with a top layer. Managed by dedicated execution teams handling permits, logistics, and resident communication, delivered for housing corporations, property managers, and construction/maintenance partners.
• Prefab Dakelementen (Prefabricated Roof Insulation Elements) Lightweight prefabricated roof insulation elements produced in-house at the company's 3,000m² factory in Zeeland (NB) under controlled conditions. Elements include battening, foils, roof windows, and flora/fauna provisions, and are delivered ready for rapid installation. Sold both for the company's own projects and to third-party roofing specialists, contractors, and maintenance parties.
• Service & Onderhoud (Service and Maintenance) Nationwide service and maintenance offering for pitched roofs, handling emergency leak repairs (storm damage), preventive maintenance including gutter cleaning and waterproofing checks, and optional maintenance subscription programs with periodic roof condition reporting for housing corporations and property managers.
• RealGreen Reno Light & SuperLight Dakelementen Proprietary flagship biobased roof element systems made from more than 98% biological materials, designed as universal integral systems applicable to all saddle roofs (without hip or valley flashing) up to 20 meters height. Demountable and suitable for reuse, BCRG-verklaring certified, used across housing corporation and heritage renovation projects.
• Pannendaken (Tile Roof Systems) Tile roof renovation systems preserving a building's characteristic appearance, with multiple tile types for a perfect match and a 25-year guaranteed lifespan through expert installation creating a single watertight system.
• Groendaken (Green Roofs) Sedum green roof systems designed and produced by Weijerseikhout, consisting of succulent plants that withstand various weather conditions, require minimal maintenance, and provide air purification, cooling, water buffering, and biodiversity benefits.
• Biobased Daksystemen (Biobased Roof Systems) Biobased roof systems filled with natural materials such as straw or sheep's wool, supporting circular building with lower CO2 emissions, reduced raw material depletion, and healthier indoor climates.
• Solar Daksystemen (Solar Roof Systems) Solar energy systems installed and managed in collaboration with Volting Energy Solutions (a Carefos group company), covering placement, monitoring, maintenance, and management of photovoltaic systems integrated with renovated roofs, including broader energy storage applications.

Quantifiable outcome

• 50 roofs per day sustainable retrofit capacity target through prefab manufacturing
• +5 more outcomes

Named customers25 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Nine partnerships are on record, tiered flagship, core and minor.

• CarefosflagshipStrategic or Co-development Partner · 1 January 2022Weijerseikhout is a subsidiary/part of Carefos, a specialist group uniting companies in maintenance, renovation, and decarbonization of the complete building envelope. Carefos includes Weijerseikhout (pitched roofs), Elro Duurzame Daken (flat roofs), ZCure valbeveiliging (fall protection), Duits Isolatie (insulation), Stekelenburg Glas (glass), and Volting (solar panels). Carefos enables cross-referrals, joint projects, and shared infrastructure across the group.
• Kingspan UnidekcoreStrategic or Co-development Partner · 1 January 2019Joint development in 2019 of a prefabricated insulation system for pitched roofs. Weijerseikhout and Kingspan Unidek co-developed the system, with Weijerseikhout applying it in Valkenswaard (174 units, third application). The system shifts work from construction site to factory, reducing weather dependency and accelerating project timelines.
• Volting Energy SolutionscoreStrategic or Co-development PartnerVolting (Carefos group company) handles installation, monitoring, maintenance, and management of solar panel systems on renovated roofs. Weijerseikhout coordinates solar integration on projects and refers customers to Volting. Collaboration enables combined roof renovation + solar panel packages for housing corporations.
• BTF PrefabcoreTechnology or IntegrationSupplier of biobased roof plates for the Kaatsheuvel project. BTF Prefab collaborated with Weijerseikhout in the pre-project phase from measurement and engineering through production of the wood fiber and sheep's wool insulation plates.
• Verweij HouttechniekminorStrategic or Co-development PartnerPartner in the Oss project for pilot homes, contributing wood technology expertise to the biobased renovation approach.
• Kuypers Zorg voor VastgoedminorStrategic or Co-development PartnerPartner in the Oss project contributing to sustainable property management and biobased renovation implementation.
• CasadecoreGTM or Marketing PartnerCasade's Dakenstroom program in Dongen and Waspik is executed by Weijerseikhout and Volting. The program represents a new way of collaboration, engineering, and future vision toward 2050. Weijerseikhout installed new roofs and green roofs on 185 homes, with 4,500+ solar panels placed by Volting.
• Hazenberg BouwcoreGTM or Marketing PartnerConstruction partner for the Kaatsheuvel biobased project (48 homes). Hazenberg TBI commissioned Weijerseikhout to install biobased insulation plates (Gutex, wood fiber, sheep's wool).
• Infinity RepairminorGTM or Marketing PartnerCarefos partner sharing the new Rotterdam office location with Weijerseikhout from autumn 2025, enabling better collaboration and knowledge exchange.

Scale indicators7 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• Isobouw: Dutch producer of EPS-based prefabricated roof elements for pitched and flat roofs. Closely comparable prefab roof-element product line serving the same Dutch renovation and new-build markets.
• Hegeman Bouwgroep: Dutch housing maintenance and renovation contractor serving social housing corporations and property managers. Comparable target customer (woningcorporaties), comparable multi-trade renovation service model and similar national footprint.
• Hemubo: Dutch multi-disciplinary housing maintenance and renovation contractor for social housing. Similar enterprise customer base (Cazas Wonen, etc.), similar service-and-maintenance plus renovation model and existing Weijerseikhout customer overlap.
• Elro Duurzame Daken: Sister company within the Carefos group specializing in sustainable flat-roof renovation. Directly comparable as a Carefos-owned Dutch roof specialist with a similar housing-corporation customer base, complementary pitched vs. flat-roof coverage.
• Kingspan Unidek: Leading Dutch manufacturer of prefabricated pitched-roof insulation elements and Weijerseikhout's co-development partner since 2019. Highly comparable on prefab roof-element technology, materials and Dutch social-housing customer overlap.

Broad incumbents

• Unilin Insulation: Large European insulation-products manufacturer (PIR, PUR, mineral wool) supplying pitched and flat-roof applications. Comparable in roof-insulation materials and channel to Dutch contractors, but operates at much broader European scale with a wider product portfolio.
• BAM Bouw en Techniek: Large Dutch general contractor with significant renovation, maintenance and building-envelope activities. Comparable end customers (housing corporations, public clients) and overlapping sustainability-renovation work, but with a much broader non-specialist portfolio.
• VolkerWessels: Major Dutch construction group with housing maintenance, renovation and energy-transition services. Comparable Dutch housing-corporation client base and renovation/sustainability mandate, but as a broad incumbent rather than a pitched-roof specialist.
• Dura Vermeer: Large Dutch construction and real-estate developer active in residential renovation and maintenance (e.g., Vreewijk). Comparable Dutch social-housing project work and sustainability positioning, but as a broad incumbent and existing Weijerseikhout customer.
• BMI Group: Global roofing materials group (Icopal, Monier, Braas) supplying pitched-roof systems across Europe. Comparable on pitched-roof covering, waterproofing and insulation components, but as a broad materials incumbent rather than a Dutch renovation specialist.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/weijerseikhout
• LinkedInlinkedin.com/company/weijers-eikhout
• Facebookfacebook.com/WeijerseikhoutBV

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

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 Weijerseikhout