WELDED LINERS

What WELDED LINERS does

WELDED LINERS (operating as WL Liners) is a French artisanal manufacturer of custom swimming pool solutions, founded in 2009 and headquartered in La Chapelle Saint Luc, in the Aube department of France (SIRET 525 022 315). The company designs and fabricates pool liners in 75/100 to 90/100 thicknesses, distributes reinforced PVC armadillo membranes in 150/100 to 180/100 thicknesses from third-party brands (Soprema, CGT Alkor, Elbe), and supplies pool covers (summer bubble/foam, winter opaque/mesh, bar-covered safety covers), accessories, underlayers, and water-treatment chemistry.

The business operates an in-house study bureau (bureau d'étude) for custom pool specifications and highlights "Fabrication française" (French manufacturing) as a core differentiator. Go-to-market is exclusively B2B: Welded Liners sells only to professional pool installers and builders through a network of qualified commercial agents covering metropolitan France, Corsica, and Belgium. Customers must register a professional account to place orders; pricing is not publicly disclosed and is handled via quote. Recent product activity in 2025–2026 includes a Class C-certified anti-slip liner, a 3D Imperial Grey color option in the V PRO range, and a Coverbox ready-to-install bar-cover kit.

Welded Liners is privately held with no disclosed external funding, no parent company, and no M&A history. The company employs approximately 6 staff, operates from a single Aube facility, and has no app, API, or disclosed technology platform beyond its corporate website and a "Configurateur" tool. The financial profile is consistent with a small, bootstrapped artisanal manufacturer with a stable, single-vertical B2B installer customer base.

Name

WELDED LINERS

Legal name

WELDED LINERS

Website

https://wl-liners.com

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Ownership category

akta.pro rank

Product category

Pool Liners and Reinforced PVC Membranes

SIC

Unsupported Plastics Film & Sheet (3081)

akta.pro primary industry

Waterproofing Membranes & Systems (Liquid-Applied & Sheet) (IMADAOAC)

Keywords

• Custom pool liners
• PVC reinforced membranes
• Swimming pool covers
• Pool safety covers
• Pool installation supplies

Headquarters

HQ city

La Chapelle Saint Luc

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Pool Liners and PVC Membranes: One-time product sales of custom-made swimming pool liners (75/100 to 90/100 thickness) and PVC armed membranes (150/100 to 180/100 thickness). Products are manufactured to custom specifications for each pool.
2. Pool Covers and Safety Equipment: Sales of summer covers (bubbles + foam), winter covers, bar covers, motorization systems, and safety equipment for swimming pools.
3. Accessories and Chemistry: Sales of liner accessories, felt and foam underlayers, maintenance chemistry products for pool care.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Welded Liners designs and manufactures custom-made pool liners (75/100 to 90/100 thickness) and PVC armed/reinforced membranes (150/100 to 180/100) at its facility in La Chapelle Saint Luc, France. The company complements its liner and membrane offering with bar covers, summer and winter covers, motorization systems, and pool installation accessories, all sold exclusively through qualified commercial agents to professional installers.

Product overview

Welded Liners is a French manufacturer offering a comprehensive portfolio of custom-built swimming pool solutions, primarily serving professional installers. The product range centers on three main categories: (1) liners including classic 75/100-85/100 models, premium V PRO 90/100 and 3D V PRO variants, plus an anti-slip Class C option with varnish finish; (2) heavy-duty PVC armadillo membranes from Soprema, CGT Alkor, and Elbe brands in 150/100-180/100 thickness; and (3) pool covers including summer bubble/foam covers, winter opaque/mesh/shutter protection covers, and safety bar covers available in standard, above-ground, and Coverbox kit formats with optional motorization. Supporting products include underlayers (felt/mousse), installation tools, and chemical treatments. The company provides technical services including plans, advice, installation manuals, and warranty support, operating from their Aube facility with nationwide France and Belgium coverage.

Differentiator

Problem solved

Functional benefit

Products and services

• Classic Pool Liners (Liner Classic 75/100 and 85/100)

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Three partnerships are on record, tiered minor.

• SopremaminorChannel Partner/ Reseller/ DistributorSoprema is a brand of PVC armed membranes distributed by Welded Liners. The company offers Soprema PVC armé products (150/100 to 180/100 thickness) as part of their product portfolio.
• CGT AlkorminorChannel Partner/ Reseller/ DistributorCGT Alkor is a brand of PVC armed membranes distributed by Welded Liners. The company offers CGT Alkor (Alkor) PVC armé products as part of their range of reinforced membrane solutions.
• ElbeminorChannel Partner/ Reseller/ DistributorElbe is a brand of PVC armed membranes distributed by Welded Liners. The company offers Elbe PVC armé products in their catalog of reinforced pool membranes.

Scale indicators1 record

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Soprema: Large French-headquartered waterproofing specialist whose reinforced PVC membranes are distributed by Welded Liners. Overlaps with Welded Liners in pool waterproofing while operating across a far broader construction and roofing portfolio.
• Fluidra: Spanish-listed global pool equipment manufacturer and distributor with a broad portfolio including pool liners. Competes with Welded Liners indirectly through its comprehensive pool products offering across European B2B channels.
• Hayward Pool Products Europe: Major global pool equipment manufacturer whose European operations distribute pool products including liners and accessories through professional channels overlapping with Welded Liners' customer base.
• Procopi: French pool equipment manufacturer and distributor offering a comprehensive pool product range to professional installers. Adjacent competitor serving many of the same French installer customers.
• Pentair Pool Europe: Large global pool and water solutions company with European presence. Competes indirectly through pool equipment and accessory offerings to installers and pool builders across the region.

Direct peers

• Renolit: German-headquartered global manufacturer of swimming pool liners and reinforced membranes (ALKORPLAN range). Direct competitor in PVC pool liners across European professional installer channels.
• Elbe Group: Manufacturer of reinforced membranes including PVC armé products distributed by Welded Liners. Direct competitor in the heavier-gauge reinforced pool membrane segment served by professional installers.
• CGT Alkor: Manufacturer of reinforced PVC membranes for pools and waterproofing applications. Currently a supplier to Welded Liners but also a direct competitor in 150/100–180/100 PVC armé membranes for the European pool market.
• Alkorplan (Renolit): Renolit's branded reinforced pool liner range, widely distributed across Europe. The most recognized competitor brand in PVC armé membranes directly overlapping Welded Liners' Soprema/CGT Alkor/Elbe distribution portfolio.

Regional players

• SCP Europe: European pool and spa equipment distributor with extensive coverage across France, Benelux, and beyond. Competes with Welded Liners at the distribution layer for pool installers, particularly in Belgium and France.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@WeldedLiners
• Facebookfacebook.com/weldedliners
• LinkedInlinkedin.com/company/welded-liners

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 WELDED LINERS