OSV SIVERTSEN

What OSV SIVERTSEN does

Osv. Sivertsen AS is a family-owned plumbing and bathroom renovation company headquartered in Stavanger, Norway, founded in 1955 by Osvald Sivertsen and now led by his twin sons Arne and Svein. The company operates a 400 m² retail showroom on Mariero in Stavanger that displays bathroom furniture, fixtures, and laundry room solutions, sourced from a multi-brand supplier network that includes Geberit, Villeroy & Boch, Hansgrohe, Duravit, INR, Svedbergs, Azzurra, Vola, and Oras. Its core capability is total bathroom and laundry room renovation, delivered through an integrated service that combines plumbing, in-house masonry/tiling, and project-level coordination with electricians and carpenters — enabling one-stop project delivery for residential and commercial clients rather than fragmented single-trade contracting.

The business operates across four revenue streams: (1) one-time service and installation labor (plumbing, sanitary, water heaters, heating systems, water meters); (2) one-time retail product sales through the showroom; (3) full renovation projects billed as professional services including design and trade coordination; and (4) recurring maintenance contracts (service agreements) with housing cooperatives (borettslag) and building associations covering heating, cooling, sanitary, and sprinkler systems. Pricing is quote-based, with free site inspections (befaring) and design sketches provided as part of the sales process.

The company holds Sentralgodkjenning (central approval) as a plumber in all intervention classes, authorizing work across Norway in addition to its Rogaland home market. It is certified as a Miljøfyrtåm (Environmental Lighthouse) business and publishes an environmental account. The company employs over 30 people including certified plumbers, masons, and support staff, and operates a long-running apprenticeship program (active since 1958) that supports talent retention. In 2023, the company exited the Bademiljø chain after multi-year membership to operate independently under its own brand. Notable customers and partners include Stavanger Katedralskole, Sølvberget Kulturhus, Giske Svømmehall, Viking Fotballklubb, Stavanger Oilers, and the public fountains service contract with Stavanger and Sandnes municipalities.

Name

OSV SIVERTSEN

Legal name

Osv. Sivertsen AS

Website

https://osv-sivertsen.no

Company type

Private

Founded year

1955

Operating status

Operating

Headcount range

1–10 employees

Short description

Family-owned plumbing and bathroom renovation company in Stavanger, Norway, founded 1955. Operates a 400 m² retail showroom, in-house masonry, and coordinates electricians and carpenters to deliver total bathroom and laundry room renovations to residential and commercial clients.

Ownership category

akta.pro rank

Product category

Plumbing and Bathroom Renovation Services

NAICS

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

SIC

General Bldg Contractors - Residential Bldgs (1520), Services-Miscellaneous Repair Services (7600)

akta.pro primary industry

Residential Plumbing Fixture Installation & Repair (HSAOAAAA)

Keywords

• Plumbing services
• Bathroom renovation
• VVS installation
• Bathroom fixtures retail
• Total renovation services

Headquarters

HQ city

Stavanger

HQ country

Norway

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Marketing or Sales, Others

Revenue model

1. Service and Installation Labor: Core revenue from plumbing service calls, installations, and repairs including sanitary systems, water heaters, heating systems, and water meters.
2. Product Sales: Retail sales of bathroom furniture, bathroom equipment, fixtures, and accessories through their physical showroom on Mariero. They act as a specialist retailer with a wide network of suppliers.
3. Total Renovation Projects: Complete bathroom and laundry room renovation projects including design, coordination of trades (plumbing, tiling, electrical, carpentry), and project management.
4. Maintenance Contracts: Service agreements with housing cooperatives (borettslag) and other associations for ongoing maintenance and service of heating, cooling, sanitary, and sprinkler systems.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Osv. Sivertsen is a family-owned plumbing and bathroom renovation company based in Stavanger, Norway, offering complete bathroom and laundry room renovation, plumbing installation and service, and retail sales of bathroom furniture and fixtures from a 400 m² showroom. The company acts as a total contractor, coordinating plumbers, tilers, electricians, and carpenters to deliver projects from design to completion, and also serves professional/commercial clients and housing cooperatives with ongoing maintenance agreements.

Product overview

Osv. Sivertsen is a family-run plumbing and bathroom renovation company operating since 1955, offering a comprehensive suite of services centered on bathroom and laundry room renovation. The core offering consists of bathroom renovation (Bad), laundry room services (Vaskerom), and general plumbing maintenance (Service), complemented by a retail showroom (Butikk) selling bathroom furniture and fixtures from brands like Geberit, Villeroy & Boch, and Hansgrohe. The company also provides specialized services including shower toilet installation (Dusjtoalett), professional market services for businesses (Proffmarked), fountain and pool installation/maintenance (Fontener og basseng), trade show plumbing solutions (Messer), and in-house masonry (Egen mureravdeling). This integrated approach allows Osv. Sivertsen to act as a total contractor for bathroom and laundry projects, coordinating plumbers, tilers, electricians, and carpenters.

Differentiator

Problem solved

Functional benefit

Products and services

• Bad (Bathroom Renovation) Complete bathroom renovation service including design consultation, free site inspection (befaring) with drawings and sketches, project management, and coordination of plumbers, tilers, electricians, and carpenters. Delivered to residential homeowners and commercial clients in the Stavanger region and nationally under Sentralgodkjenning.
• Vaskerom (Laundry Room) Laundry room renovation and furnishing service including smart storage solutions, integrated washer/dryer setups, combined bathroom/laundry room designs, free site inspection, and professional drawings for space optimization. Aimed at residential homeowners seeking organized, modern utility spaces.
• Butikk (Bathroom Furniture Retail) Retail sales of bathroom furniture, equipment, fixtures, and accessories from a 400 m² showroom. Products supplied by brands including Geberit, Villeroy & Boch, Hansgrohe, Duravit, INR, Svedbergs, Azzurra, Vola, and Oras. Expert staff available for guidance and selections.
• Service (Plumbing Service & Maintenance) General plumbing service and maintenance offering covering dripping faucets, water heater issues, water meter installation, water-based heating maintenance, sanitary installations, and ongoing service agreements for residential and commercial properties. Includes recurring maintenance contracts with housing cooperatives.
• Dusjtoalett (Shower Toilet) Sale and installation of shower toilet products that combine toilet and bidet functionality, primarily featuring Geberit Aquaclean models. Available for in-store demonstration at the Mariero showroom and for purchase with professional installation.
• Proffmarked (Professional Market) Professional plumbing services for contractors, businesses, housing cooperatives, and public institutions. Covers installation and ongoing maintenance of heating, cooling, sanitary, and sprinkler systems, plus service agreements for boligselskap and similar organizations. Includes work delivered nationally under Sentralgodkjenning in all intervention classes.
• Fontener og basseng (Fountains & Pools) Design, installation, and maintenance of fountains, pools, artificial streams, and ponds. Includes ongoing full-responsibility service and maintenance contracts for public fountains in Stavanger and Sandnes municipalities.
• Messer (Trade Shows & Events) Provision of plumbing and water solutions for trade shows, festivals, and large events, including temporary water installations, drainage, and on-site service support during the event period.
• Egen mureravdeling (In-house Masonry) In-house tiling and masonry services delivered as part of complete bathroom and renovation projects. Enables total project management without external coordination with other trades.

Named customers10 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

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

• Rørentreprenørene Norge (REN)coreOthers · 1 January 2023The company has always been a member of Rørentreprenørene Norge (REN), the industry association for plumbing contractors in Norway. REN provides industry representation, standards, and professional development.
• Stavanger and Sandnes Municipalities (Public Fountains)flagshipStrategic or Co-development PartnerOsv. Sivertsen has full responsibility for service and maintenance of all public fountains in Stavanger and Sandnes municipalities. This is a flagship ongoing service contract covering seasonal maintenance from April to October/November.
• Electricians and Carpenters NetworkcoreStrategic or Co-development PartnerThe company works in close collaboration with electricians and carpenters as part of their total renovation services. They coordinate multiple trades for complete bathroom and construction projects.
• Gladmat FestivalminorGTM or Marketing PartnerPartner of the Gladmat food festival, a major regional food event. Participates in designing and implementing water solutions for festival operations.
• Viking FotballklubbminorGTM or Marketing PartnerSponsor of the Viking Football Club, an elite-level football club in Stavanger. Local community sponsorship to build brand recognition.
• Stavanger OilersminorGTM or Marketing PartnerSponsor of Stavanger Oilers hockey team. Community sponsorship to support local sports and build brand awareness.
• GeberitcoreTechnology or IntegrationKey supplier of shower toilet products (Geberit Aquaclean). Featured prominently in company's shower toilet marketing and demonstrations. Long-standing supplier relationship.
• Bathroom Fixture Suppliers (Villeroy & Boch, Hansgrohe, Duravit, etc.)coreChannel Partner/ Reseller/ DistributorExtensive network of suppliers for bathroom furniture and fixtures including Villeroy & Boch, Hansgrohe, Duravit, INR, Svedbergs, Azzurra, Vola, Oras, and others. Supplies products for retail showroom and installations.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Comfort-kjeden: Norwegian chain of independent plumbing and HVAC contractors (rørlegger/VVS) offering comparable plumbing service, heating, and bathroom renovation across Norway. Closely aligned business model and customer base to OSV's core offering.
• Rørkjøp: Norwegian merchant wholesaler and retailer of plumbing products with an associated installer network. Comparable to OSV's retail showroom and professional installation service lines, and competes for the same bathroom renovation customer wallet.
• Bademiljø: Norwegian bathroom retail and renovation chain offering the same combination of bathroom fixtures, design consultation, and installation that OSV delivers. OSV was a member until 2023 and now competes as an independent operator against other Bademiljø franchisees in the same regional markets.
• VB (Varme og Bad): Norwegian chain of plumbing and heating retailers and contractors combining physical showroom retail with installation services. Directly comparable business model with multi-trade capability and showroom-based customer acquisition similar to OSV's Mariero setup.

Broad incumbents

• Byggmakker: Large Norwegian building materials retailer with a nationwide store network. Overlaps with OSV's retail showroom concept and serves the same DIY and semi-professional customer base, though with a much broader product range beyond bathroom.
• Kruse Smith: Large Norwegian general contractor and construction group with significant building services operations. Represents the scale-up competitive threat for larger commercial and institutional contracts that a 30-person operator like OSV cannot pursue directly.
• MAXBO: Major Norwegian building supplies chain serving both consumers and professional contractors. Acts as an adjacent competitor for retail bathroom fixtures and a broader substitute for renovation materials sourcing in the same regional markets.

Others

• Geberit: Swiss sanitary technology manufacturer and OSV's key supplier of shower toilet products (Geberit Aquaclean). Operates upstream in the bathroom value chain with complementary product focus and serves as a long-standing technology partner to OSV's showroom.
• FM Mattsson: Nordic manufacturer of bathroom and kitchen faucets and fittings. Comparable in the bathroom fixtures category where OSV acts as a retail channel partner through its Mariero showroom, and adjacent as a brand supplier in OSV's premium product mix.

Regional players

• Norrøn Håndverk: Norwegian contractor group specializing in residential renovation and building services including bathroom projects. Operates with a comparable multi-trade project delivery model, primarily in Western Norway overlapping OSV's Rogaland base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/osvsivertsen
• Instagraminstagram.com/osvsivertsen
• LinkedInlinkedin.com/company/osv-sivertsen

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 OSV SIVERTSEN