TN Slopen en Saneren

What TN Slopen en Saneren does

TN Slopen en Saneren is a privately held Dutch contractor specializing in demolition and hazardous-materials remediation, headquartered in Joure, Friesland, with operational coverage across Northern Netherlands (Friesland, Groningen, Drenthe). The company is built around four service pillars: total and renovation demolition (sloopwerken, totaalsloop, renovatiesloop, circulair slopen), asbestos removal (asbestsanering, asbest verwijderen), specialized Chroom-6 (hexavalent chromium) coating remediation, and 24/7 emergency response (calamiteiten) for fires, explosions, collapses, and hazardous-material releases.

The technical core is a certified, equipment-owning operation rather than a software or data product. TN operates a fleet of more than 20 vehicles, cranes, container trucks, screening equipment and water-cannon dust-suppression units, and executes to a stack of Dutch regulatory standards including ISO 9001:2015, VCA**, BRL SVMS-007, Procescertificaat Asbestverwijdering (cert 07-C070238), and SC 530. Approximately 95% of freed materials are source-separated on site, supporting the TN Circulair sub-brand and a core-partner relationship with the Insert circular building-materials network, which resells reclaimed windows, frames, doors, stairs and installation parts into the secondary market.

Revenue is generated project-by-project via direct B2B sales and competitive public tenders across six customer segments: construction companies and contractors, housing corporations, municipalities and government, industrial and maritime companies, insurance companies/damage experts, and private individuals. The firm employs approximately 25 skilled workers, with leadership contacts Tjitte Noppert and Marijn Castelijn serving as named 24/7 emergency points of contact. No funding rounds, parent company, or external ownership structure is disclosed; the entity appears founder-controlled and operates without disclosed revenue.

Name

TN Slopen en Saneren

Legal name

TN Slopen en Saneren

Website

https://tnslopenensaneren.nl

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

11–50 employees

Short description

TN Slopen en Saneren is a Friesland-based Dutch contractor that performs certified demolition, asbestos and Chroom-6 remediation, 24/7 emergency response, and circular material recovery for contractors, housing corporations, municipalities, industrial clients, and private individuals across Northern Netherlands.

Ownership category

akta.pro rank

Product category

Demolition and Asbestos Remediation Services

NAICS

Remediation Services (562910)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro primary industry

Demolition & Selective Tear-Out for Hazardous Materials (BPALALAF)

akta.pro secondary industries

Asbestos Abatement & Removal (BPALALAA), Demolition, Decommissioning & Asset Retirement (Environmental Scope) (IMAIAGAH), Environmental Remediation & Site Cleanup (Soil/Groundwater) (IMAIAGAA)

Keywords

• Demolition services
• Asbestos remediation
• Circular demolition
• Hazardous material removal
• Emergency response services

Headquarters

HQ city

Joure

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Marketing or Sales, Others

Revenue model

1. Demolition services (sloopwerken): Project-based revenue from complete demolition (totaalsloop), renovation demolition (renovatiesloop), and circular demolition of residential, commercial and industrial buildings. Revenue earned per project based on scope, scale, and complexity. Own equipment and workforce for execution.
2. Asbestos removal and remediation (asbestsanering): Specialized hazardous material removal services covering industrial, maritime, residential, and utility buildings. Revenue per project with mandatory certification (SC 530, SVMS-007) compliance.
3. Circular materials sales (TN Circulair): Reclaimed building materials (windows, frames, doors, stairs, installations) are resold via TN Circulair platform to contractors and private individuals, generating secondary revenue from materials recovery.
4. Calamity emergency services: Emergency response for fires, explosions, collapses, storm damage and asbestos incidents. 24/7 availability with rapid deployment for insurance companies, fire services, municipalities, and businesses.
5. Chroom-6 (Hexavalent Chromium) remediation: Specialized coating remediation for steel structures, bridges, frames, fences, pipelines, defense equipment, ships and trains containing hazardous hexavalent chromium compounds.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

TN Slopen en Saneren is a certified demolition and asbestos remediation contractor performing total demolition, renovation demolition, circular demolition (recovering ~95% of materials at source), asbestos removal, hexavalent chromium (Chroom-6) remediation, and 24/7 emergency response for fires, explosions, collapses, and storm damage. The company operates its own fleet of 20+ vehicles, cranes, and specialized equipment, and also resells reclaimed building materials through its TN Circulair sub-brand in partnership with the Insert network.

Product overview

TN Slopen en Saneren offers a unified portfolio of demolition and hazardous material remediation services, centered around core offerings of Sloopwerken (demolition), Totaalsloop (complete demolition), Renovatiesloop (renovation demolition), Circulair slopen (circular demolition), Asbestsanering (asbestos remediation), and Asbest verwijderen (asbestos removal). The company also provides specialized Chroom-6 (Chromium-6) remediation and Calamiteiten (emergency response) services. Their services are organized by building type (Totaalsloop woningen for residential, Totaalsloop bedrijfspanden for commercial) and geography (Sloopbedrijf Friesland for regional coverage). Supporting their core services, they operate TN Circulair for second-hand building materials, creating a closed-loop circular demolition model. The portfolio spans from precision manual demolition work to large-scale industrial demolition, with approximately 95% of materials separated at source for reuse or recycling.

Differentiator

Problem solved

Functional benefit

Brands

• TN Circulair: Circular economy brand operated by TN Slopen en Saneren for reselling reusable building materials salvaged from demolition projects, including windows, doors, frames, and other construction materials.

Products and services

• Sloopwerken (Demolition Works) General demolition services covering precision work to large-scale total demolition projects, including safe removal of hazardous materials like asbestos. Targeted at contractors, housing corporations, municipalities, businesses, and private individuals across Northern Netherlands.
• Totaalsloop (Total Demolition) Complete demolition of buildings, structures, complete industrial sites, residential areas, healthcare complexes, and standalone buildings, with a focus on circular demolition practices including on-site material separation and reuse.
• Renovatiesloop (Renovation Demolition) Demolition services for renovation projects, focusing on targeted removal without damaging remaining structures, including manual work such as floor covering removal, ceiling demolition, and tile chipping. Designed to minimize disruption to occupants and surrounding structures.
• Circulair slopen (Circular Demolition) Circular demolition services that maximize material reuse and recycling by separating approximately 95% of materials directly at the source, with reclaimed items such as windows, doors, and frames resold through the TN Circulair platform. Supports sustainability and CO2 reduction targets for clients.
• Asbestsanering (Asbestos Remediation) Comprehensive asbestos remediation services from inventory to completion, covering industrial, maritime, residential, utility, and industrial environments, including emergency response. Performed under SC 530 guidelines with full regulatory compliance.
• Asbest verwijderen (Asbestos Removal) Safe and controlled asbestos removal services for pipes, insulation, ceilings, floor finishes, roofing, gutters, and crawl spaces, following strict regulatory compliance including SC 530 protocols and Procescertificaat Asbestverwijdering.
• Chroom-6 (Hexavalent Chromium Remediation) Specialized chromium-6 remediation for paint and coatings on steel structures, bridges, windows, fences, pipelines, defense equipment, ships, and trains, including comprehensive substance inventory and safe removal protocols.
• Calamiteiten (Emergency Response) 24/7 emergency response services for fires, explosions, structural collapses, storm damage, asbestos releases, and water damage, with rapid deployment of equipment and personnel. Available 7 days per week for insurance companies, fire services, municipalities, and businesses.
• Tweedehands bouwmaterialen (Second-hand Building Materials via TN Circulair) Resale of reusable building materials salvaged from demolition projects, including windows, doors, frames, and other construction materials, sold to contractors and private individuals through the TN Circulair sub-brand and Insert network.
• Overig (Boat Demolition and Roof Renovation) Additional services including boat demolition (Botensloperij) and roof renovation (Dakrenovatie), complementing the core demolition and remediation offerings.

Quantifiable outcome

• Approximately 95% of materials separated at source during demolition, enabling circular recovery
• +2 more outcomes

Named customers9 records

Segments6 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

Two partnerships are on record, tiered core and minor.

• InsertcoreStrategic or Co-development PartnerInsert is a circular building materials network of which TN Slopen en Saneren is a core partner (kernpartner). Through this partnership, reclaimed materials (window frames, wood constructions, installation parts, sanitary ware) from demolition projects are reintroduced into the construction market. Insert provides certification, traceability, and market access for recovered materials, enabling TN to offer circular demolition as a standard service.
• VERASminorOthersVERAS is the Dutch industry association for demolition and remediation companies. TN Slopen en Saneren is a member, using the VERAS logo on its website to signal industry credibility and compliance with sector standards.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Koninklijke Volker Stevin: Large Dutch infrastructure and construction group active in demolition and civil works; relevant incumbent for large nonresidential demolition framework contracts.
• Heijmans: Major Dutch construction and development group that includes demolition and remediation activities; sets competitive benchmarks for tenders and pricing that TN must meet.
• Mourik: Large Dutch industrial services and environmental remediation contractor; competes with TN on industrial demolition, Chroom-6, and hazardous material scopes at a national scale.

Others

• Insert: Dutch circular building-materials network of which TN is a core partner; comparable as a thematic ecosystem player for circular demolition and resale of reclaimed materials.
• VERAS: Dutch branch association for demolition and remediation companies; relevant industry body that shapes standards, lobbying, and tender prerequisites affecting TN's competitive context.

Direct peers

• A. van Liempd Sloopwerken: Dutch demolition contractor with comparable service scope (total demolition, renovation demolition, asbestos remediation) and similar regional/small-to-mid market positioning in the Netherlands.
• Van Vliet Groep: Multi-disciplinary Dutch demolition and remediation group with overlapping services in total demolition, asbestos removal, and circular material recovery.
• Beelen Sloopwerken: Established Dutch demolition contractor offering total demolition, renovation demolition, and hazardous material services; closest direct competitor to TN's core demolition-and-asbestos portfolio.
• Dusseldorp: Dutch infrastructure and demolition specialist executing nonresidential demolition and remediation projects, comparable in scope to TN's industrial and municipal work.
• Multi Engineering: Dutch firm specializing in asbestos remediation and hazardous material abatement for industrial, maritime, and utility environments — closely comparable to TN's SC 530 asbestos practice.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/tn-slopen-en-saneren
• Instagraminstagram.com/tnslopenensaneren

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 TN Slopen en Saneren