---
title: "HERMZ WINDOW CLEANING & BUILDING MAINTENANCE LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/1a6e830e-de40-42c6-a414-74e4e606c8d4
json: https://whiteintel.dev/api/public/dossier/1a6e830e-de40-42c6-a414-74e4e606c8d4
identifier: gb-coh:17291485
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# HERMZ WINDOW CLEANING & BUILDING MAINTENANCE LTD

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `gb-coh:17291485`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/1a6e830e-de40-42c6-a414-74e4e606c8d4  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/1a6e830e-de40-42c6-a414-74e4e606c8d4  

## Ownership & control

### Owners / controllers

- **Mr Hermann Goma Tchicaya** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/2ec7c2b6-b76e-4f09-b9b6-ad996790cc9e
- **Miss Alicia Omara Dunn** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/9e3bc884-8bca-4ec5-8623-8bbca94f28ea

### UBO chain (walk to the ultimate owner)

A **2-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

## Company profile (UK Companies House — WhiteIntel corpus snapshot, not a live lookup)

- **Company number:** `17291485`
- **Status:** Active
- **Type:** Private Limited Company
- **Incorporated:** 2026-06-20
- **Registered office:** FLAT 1, 9 CRESCENT RISE, LUTON, LU2 0AT
- **SIC:** 81221 - Window cleaning services

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/17291485

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **HERMZ WINDOW CLEANING & BUILDING MAINTENANCE LTD**. Human view: https://whiteintel.dev/entity/1a6e830e-de40-42c6-a414-74e4e606c8d4 · Structured JSON: https://whiteintel.dev/api/public/dossier/1a6e830e-de40-42c6-a414-74e4e606c8d4._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._