---
title: "SEFTON WINDOWS & PLASTICS LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/6007ac9e-0c30-53a8-8f02-e80011cffdce
json: https://whiteintel.dev/api/public/dossier/6007ac9e-0c30-53a8-8f02-e80011cffdce
identifier: oo:GB-COH-13273107
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# SEFTON WINDOWS & PLASTICS LTD

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-13273107`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/6007ac9e-0c30-53a8-8f02-e80011cffdce  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/6007ac9e-0c30-53a8-8f02-e80011cffdce  

## Ownership & control

### Owners / controllers

- **Miss Jennifer Kathryn Lamont** (beneficial owner) — 50% — https://whiteintel.dev/entity/f84580ff-8ef8-5665-8ef2-d3a06a97be39
- **Mr Joeseph Daniel Stephen Calland-Young** (beneficial owner) — 50% — https://whiteintel.dev/entity/026b597b-a36d-5838-9650-7fe3a38fa22c
- **Miss Jennifer Kathryn Lamont** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/ea4b30db-10eb-4311-92b0-14f6227ca623
- **Mr Joeseph Daniel Stephen Calland-Young** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/78098ccc-6322-4750-9f26-05d8fb85a28c
- **Miss Jennifer Kathryn Lamont** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/ea4b30db-10eb-4311-92b0-14f6227ca623
- **Mr Joeseph Daniel Stephen Calland-Young** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/78098ccc-6322-4750-9f26-05d8fb85a28c

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

1. **Miss Jennifer Kathryn Lamont** — beneficial owner 50% → *SEFTON WINDOWS & PLASTICS LTD*
1. **Mr Joeseph Daniel Stephen Calland-Young** — beneficial owner 50% → *SEFTON WINDOWS & PLASTICS LTD*
1. **Miss Jennifer Kathryn Lamont** — beneficial owner 37.5% → *SEFTON WINDOWS & PLASTICS LTD*
1. **Mr Joeseph Daniel Stephen Calland-Young** — beneficial owner 37.5% → *SEFTON WINDOWS & PLASTICS LTD*
1. **Miss Jennifer Kathryn Lamont** — beneficial owner 37.5% → *SEFTON WINDOWS & PLASTICS LTD*
1. **Mr Joeseph Daniel Stephen Calland-Young** — beneficial owner 37.5% → *SEFTON WINDOWS & PLASTICS LTD*

## Company profile (live · UK Companies House)

- **Company number:** `13273107`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2021-03-17
- **Registered office:** Unit 3 47-49a Guildford Road, Southport, Merseyside, PR8 4JU, United Kingdom
- **SIC:** 43320

### Officers

- LAMONT, Jennifer Kathryn — director · British · appointed 2021-03-17

### Beneficial owners (Persons with Significant Control)

- Miss Jennifer Kathryn Lamont — 25–50% shares · individual PSC · United Kingdom — since 2021-03-17
- Mr Joeseph Daniel Stephen Calland-Young — 25–50% shares · individual PSC · United Kingdom — since 2021-03-17

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/13273107
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/13273107

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **SEFTON WINDOWS & PLASTICS LTD**. Human view: https://whiteintel.dev/entity/6007ac9e-0c30-53a8-8f02-e80011cffdce · Structured JSON: https://whiteintel.dev/api/public/dossier/6007ac9e-0c30-53a8-8f02-e80011cffdce._

_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"._