Surge Protection Devices Limited

Active05920962 Private limited company
Incorporated
31 August 2006 (20 years)
Industry
Other specialised construction activities n.e.c. (43999)
Directors
Daniel Diandian Sun Zhang
Helen Claire Johnson
Accounts type
Full
Region
North West
Address
Johnson House Watts Street
Chadderton
Oldham
OL9 9LQ

Filing status

Accounts due
30 September 2027
Last accounts
31 December 2025
Conf. stmt due
16 August 2027
Last conf. stmt
2 August 2026

Officers 3 active

Officer details are public data from the Companies House register.

Zhang, Daniel Diandian Sun
Director · Appointed 18 September 2025
Swedish
Born September 1989 (37)
Director · Appointed 28 July 2025
British
Born September 1972 (54)
Johnson, Helen Claire
Director · Appointed 10 February 2025
British
Born May 1983 (43)
Officer history (14 former)
31 July 2026
Resigned Rockhammar, Mikael as Director
17 February 2026
Resigned Olsson, Kenth Patrick Mattias as Director
18 September 2025
Resigned Steene, Johan as Director
18 September 2025
Resigned Booth, Duncan as Secretary
18 September 2025
Appointed Zhang, Daniel Diandian Sun as Director
28 July 2025
Appointed Barton, David Richard as Director
10 February 2025
Appointed Booth, Duncan as Secretary
10 February 2025
Appointed Olsson, Kenth Patrick Mattias as Director
10 February 2025
Appointed Johnson, Helen Claire as Director
31 December 2024
Resigned Johnson, Wendy as Secretary
10 November 2024
Resigned Johnson, Kirsty as Director
10 November 2024
Resigned Johnson, Ian as Director
10 November 2024
Resigned Johnson, Helen Claire as Director
10 November 2023
Appointed Steene, Johan as Director
10 November 2023
Appointed Rockhammar, Mikael as Director
31 July 2019
Appointed Johnson, Wendy as Secretary
31 July 2019
Appointed Johnson, Helen Claire as Director
31 July 2019
Resigned Johnson, Ian as Secretary
31 July 2019
Appointed Johnson, Kirsty as Director
31 October 2014
Resigned Johnson, Sandra as Director
19 September 2008
Resigned Johnson, Helen Claire as Secretary
19 September 2008
Appointed Johnson, Ian as Director
19 September 2008
Appointed Johnson, Ian as Secretary
11 May 2007
Appointed Johnson, Helen Claire as Secretary
11 May 2007
Appointed Johnson, Sandra as Director
11 May 2007
Resigned Johnson, Sandra as Secretary
11 May 2007
Resigned Johnson, Ian as Director
31 August 2006
Appointed Clayton, Michelle as Director
31 August 2006
Resigned Clayton, Michelle as Director
31 August 2006
Appointed Johnson, Sandra as Secretary
31 August 2006
Appointed Johnson, Ian as Director

Ownership 1 active

People and entities with significant control, from the Companies House PSC register

Corporate entity · Notified 31 March 2026
Owns 75–100% of shares
Holds 75–100% of voting rights
Right to appoint and remove directors
Private Limited Company
Reg. no. 16468538
Former controllers (2)
31 March 2026
Ceased Teqnion AB — Right to appoint and remove directors
10 November 2023
Ceased Ian Johnson — Owns 75–100% of shares

Group structure 20 companies

Ownership group derived from the Companies House PSC register

Abercromby Vending Ltd. Owns 75–100% of shares
Avelair Limited Owns 75–100% of shares
Awarded 2U Limited Owns 75–100% of shares
Belle Coachworks Holdings Limited Owns 75–100% of shares
Belle Coachworks Limited Owns 75–100% of shares
Birkett Bogmats Limited Owns 75–100% of shares
HT Servo Ltd Owns 75–100% of shares
Merridale Ltd Owns 75–100% of shares
Fuelworks Limited Owns 75–100% of shares
Powerair Holdings Limited Owns 75–100% of shares
Powerair Limited Owns 50–75% of shares
Stanwell Technic Ltd. Owns 75–100% of shares
Surge Protection Devices Limited This company Owns 75–100% of shares
Consumer Units Limited Owns 75–100% of shares
Teq Shanty Ltd Owns 75–100% of shares
UK Lanyard Makers Ltd Owns 75–100% of shares
Unique Door Panels Ltd Owns 75–100% of shares
Unique Composite Doors Ltd Owns 75–100% of shares

Financials

Balance sheet as at 31 December 2025 · full accounts

Net Assets
£3,371,946
Cash
£1,644,222
Profit Before Tax
£2,194,558
Debt Ratio
15%
Current Ratio
6.5x
Return on Equity
51%

Trend

Net Assets
£0 £2.0M £4.0M 2019 2020 2021 2022 2023 2024 2025 £320,127 £441,412 £595,606 £543,569 £1,550,937 £2,941,620 £3,371,946
Balance sheet detail
2025202420232022202120202019
Fixed Assets£47,849£37,543£24,505£78,737£113,749£138,800£103,170
Current Assets£3,935,727£3,871,511£2,198,750£1,126,081£993,801£667,938£647,297
Debtors£1,902,811£1,585,783£717,100£392,954£273,277£191,123£202,505
Cash£1,644,222£1,722,056£1,080,965£592,069£608,666£373,040£346,017
Creditors (< 1 year)£609,716£972,286£666,191£448,585£263,136£353,383£418,896
Creditors (> 1 year)£0£193,333£240,000
Net Current Assets£3,326,011£2,899,225£1,532,559£677,496£730,665£314,555£228,401
Net Assets£3,371,946£2,941,620£1,550,937£543,569£595,606£441,412£320,127
Shareholder Funds£3,371,946£2,941,620£1,550,937£543,569£595,606£441,412£320,127

What Surge Protection Devices say about themselves

“Surge Protection Devices provide lightning and surge protection solutions for industrial, commercial and domestic electrical installations.”

— from surge-ltd.co.uk

Filings

Recent filings only. See the full history on Companies House

DateDescriptionMade Up ToPagesPDF
28 October 2026Director's details changed
12 August 2026Confirmation statement with updates2 August 2026

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