LAHET

What LAHET does

LAHET (commercial name "Portes Lahet") is a French industrial manufacturer founded around 1971, headquartered in Sainte-Blandine, Isère (near Bourgoin-Jallieu), specializing in isothermal (thermally insulated) doors for temperature-controlled environments. The company operates two primary product lines — SÉRIE ALU (aluminum-framed) and SÉRIE INOX (stainless steel) — spanning roughly 28 SKUs that include pivot (swinging) doors, sliding doors, double-action (va-et-vient) doors, service doors, and glazed frames for positive- and negative-temperature applications across food processing, pharmaceutical, cold storage, and data-center environments. Manufacturing is fully in-house at the Sainte-Blandine facility, using laser cutting, CNC machining benches, and vertical polyurethane foam injection presses to produce approximately 6,000 door units per year with a stated workforce of 40 employees and a typical 4-week fabrication lead time.

The business model is B2B and channel-driven: LAHET positions itself as a partner to a network of resellers and installers (revendeurs et installateurs) who purchase doors and install them for end customers, rather than selling directly to end users. Revenue is generated through hardware sales of custom-configured doors, with quote-based pricing that is not publicly disclosed, supplemented by a WooCommerce-powered catalog on portes-lahet.fr for product browsing and inquiry. The company's go-to-market relies on the French food-processing trade show circuit (notably CFIA in Rennes, where it exhibited from 2016 to 2019), its membership in the SNI (Syndicat National des Isolateurs), and the integration of FERMOD as its standard hardware platform. End markets are diversified across vertical segments including abattoirs, dairies, bakeries, cold-storage warehouses, pharmaceutical clean rooms, and data centers, with products shipped throughout France and internationally. The company makes no disclosed revenue, funding, or financial statements available and has no public ownership, parent company, or institutional investors identified in the available data.

Name

LAHET

Legal name

LAHET

Website

https://portes-lahet.fr

Company type

Private

Founded year

1971

Operating status

Operating

Headcount range

11–50 employees

Short description

LAHET is a French manufacturer of custom isothermal doors for food processing, pharmaceutical, cold storage, and data center facilities, producing ~6,000 doors/year across aluminum and stainless-steel lines for sale through resellers and installers.

Ownership category

akta.pro rank

Product category

Industrial Isothermal Doors

NAICS

Metal Window and Door Manufacturing (332321)

SIC

Metal Doors, Sash, Frames, Moldings & Trim (3442)

akta.pro primary industry

Commercial & Industrial Doors (Sectional, High-Speed, Fire, Security) (IMADAIAF)

Keywords

• Isothermal door manufacturing
• Industrial cold room doors
• Insulated sliding doors
• Food processing doors
• Pharmaceutical cleanroom doors

Headquarters

HQ city

Sainte-blandine

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Door Manufacturing and Sales: LAHET generates revenue through the design, manufacture, and sale of custom isothermal doors and insulated panels. Products are sold to resellers and installers who then install the doors for end customers. The company also offers doors and panels in stock for faster delivery.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels3 records

Core offering

LAHET designs and manufactures custom isothermal (insulated) doors for temperature-controlled environments including food processing facilities, pharmaceutical cleanrooms, cold storage warehouses, and data centers. The company offers two main product series — SÉRIE ALU (aluminum-framed doors) and SÉRIE INOX (stainless steel doors) — covering pivot, sliding, double-action, and service door configurations for positive and negative temperature applications. All products are made-to-order at the company's Sainte-Blandine facility in France and sold primarily through a network of resellers and installers.

Product overview

LAHET is a French manufacturer specializing in isothermal (insulated) doors for temperature-controlled environments. The company operates two primary product lines: SÉRIE ALU (aluminum-framed doors) and SÉRIE INOX (stainless steel doors), with approximately 28 distinct products across these series. These include pivot doors (swinging), sliding doors, double-action doors (va-et-vient), service doors, and glazed frames. The aluminum series targets positive temperature environments with thermal break profiles ranging from 60-140mm, while the stainless steel series handles aggressive environments and negative temperatures. Additional products include polyethylene doors for intensive traffic, fire-rated doors (EI 30), laminated doors, and strip curtains. All products are manufactured in France at the company's Sainte-Blandine facility with approximately 40 employees producing 6,000 units annually.

Differentiator

Problem solved

Functional benefit

Products and services

• SÉRIE ALU - Aluminum Isothermal Doors

Quantifiable outcome

• 6000 fabrications par an

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Three partnerships are on record, tiered core and primary.

• FERMODcoreTechnology or IntegrationFERMOD is a key component supplier for LAHET's door products. FERMOD hardware components used in LAHET doors include hinges (2-3 units per door leaf), sliding rail systems (series 2120, 2130, 2150, 3530, 7530, 8700), automatic closing mechanisms, and specialized hardware for isothermal door applications.
• Resellers and InstallersprimaryChannel Partner/ Reseller/ DistributorLAHET positions itself as partner to resellers and installers (revendeurs et installateurs). These channel partners purchase LAHET doors and install them for end customers in the food processing, pharmaceutical, and cold storage industries.
• SNI (Syndicat National des Isolateurs)coreStrategic or Co-development PartnerLAHET is a member of SNI (Syndicat National des Isolateurs), the National Union of Insulators, indicating membership in a professional industry association for the insulation sector in France.

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• SPAC: French manufacturer of industrial and isothermal doors for cold rooms, logistics, and agri-food sectors. Closest geographic and product-line peer to LAHET, competing in the same French market with overlapping door configurations and channel-based sales.
• Metaflex: Dutch specialist manufacturer of insulated doors for cold rooms, cleanrooms, and hygienic environments. Directly comparable to LAHET in product category (isothermal doors), target end markets (food, pharma, cold storage), and customization-driven B2B business model.

Others

• FERMOD: French manufacturer of hinges, sliding rails, and closing hardware for cold-room and industrial doors. Functions as a key upstream component supplier to LAHET (e.g., 2120/2130/2150/3530/7530/8700 track series), making it both a partner and a potential competitive threat if vertically integrated.

Broad incumbents

• Kingspan: Irish-listed building envelope specialist whose insulated panels division serves cold storage, data center, and industrial markets. Adjacent rather than direct overlap, but Kingspan increasingly bundles door systems with panel packages, posing a bundling threat to LAHET.
• Assa Abloy: Global access solutions leader with a broad door portfolio including industrial and insulated door systems. Competes with LAHET in commercial door categories but at vastly greater scale and with formalized certification/specification infrastructure.
• Hörmann: Europe's largest manufacturer of industrial, commercial, and residential doors, including insulated and cold-room offerings. Overlaps with LAHET in commercial/industrial doors but operates a much broader portfolio at global scale.

Regional players

• Record: French manufacturer specializing in industrial, automatic, and high-performance doors for logistics and commercial applications. Comparable product category (industrial doors) with similar channel-based distribution, focused primarily on the French market like LAHET.

Emerging players

• N冰冷设备: Chinese manufacturer of cold-room doors and insulated panels serving food processing and logistics. Competes with LAHET in international markets on price, particularly in emerging-market cold-chain projects where cost outweighs brand heritage.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/lahet

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 LAHET