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Mustoe Engineering Ltd

ActiveMicro-entity accountsElectriciansStockton-on-Tees
Company number
14735867
Incorporated
16 Mar 20233 years trading
Registered office
Unit 44D Dukesway, Teesside Industrial Estate, Stockton-on-Tees, TS17 9LT
Nature of business
Electrical installation; Plumbing, heat and air-conditioning installation
Accounts due in
80 days
31 Dec 2026
Net assets
£89K▲
+96.1% on the year before
Employees
5
Average during the year
Public contracts
2
Latest 2026
From the Companies House register, 1 Oct 2026

Mustoe Engineering Ltd is a 3-year-old private limited company registered in Stockton-on-Tees, company number 14735867, one of 121 electrical contractors in Stockton-on-Tees. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.

Key dates

Worked out from the year end and filing history on the Companies House register.

Accounts due
31 Dec 2026
in 80 days
For the period to 31 Mar 2026
CT600 due
31 Mar 2027
in 170 days
Period 1 Apr 2025 to 31 Mar 2026
Corporation tax payment
1 Jan 2027
in 81 days
9 months and 1 day after the period end
Confirmation statement
27 Aug 2027
in 319 days
Last made up to 13 Aug 2026

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Finances

From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.

  • Net assets up £44K (+96.1%) on the year before, to £89K.
  • Current assets of £234K against £230K owed within a year: 1.0 times cover.
  • 5 employees on average, up from 0 the year before.
  • Balance sheets on record for 2 years, 2024 to 2025.

Net assets by year

Net assets at each year end, 2024 to 2025£0£50K31 March 2024: net assets £45K£45K202431 March 2025: net assets £89K£89K2025
Net assets at each year end, 2024 to 2025£0£50K31 March 2024: net assets £45K£45K202431 March 2025: net assets £89K£89K2025
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Mar 2025£89K£234K£230K5
31 Mar 2024£45K£136K£94K0

Public contracts won

Mustoe Engineering Ltd has 2 public sector contract awards on record; the ones with their own published value total £92K, from 2025 to 2026. Source: Contracts Finder and Find a Tender award notices. For 1 of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown.

Awards by year

20251
20261

Main buyers

  • Stockton on Tees Borough Council1 award
  • Hartlepool Borough Council1 award
BuyerContractValueAwarded
Stockton on Tees Borough CouncilSBC Minor Works FrameworkCeiling, not shown30 Sep 2026
Hartlepool Borough CouncilHorizon School Heating Replacement£92K1 Aug 2025

Where Mustoe Engineering Ltd is registered

Mustoe Engineering Ltd's registered office on a map of the UK

The registered office is in Stockton-on-Tees (TS17), in the Stockton-on-Tees local authority area, North East. Show TS17 9LT on a map.

Other trade companies in TS17

What happens if Mustoe Engineering Ltd files late

Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 31 December 2026.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Jan 2027 to 31 Jan 2027£150
1 to 3 months late1 Feb 2027 to 31 Mar 2027£375
3 to 6 months late1 Apr 2027 to 30 Jun 2027£750
More than 6 months lateFrom 1 Jul 2027£1,500

Penalties double if the accounts were also late the year before.

HMRC (CT600)FromPenalty
1 day late1 Apr 2027£200
3 months late30 Jun 2027another £200
6 months late30 Sep 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Mar 2028another 10% of any unpaid tax

For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.

Company details

As held on the Companies House register.

Company number
14735867
Status
Active
Company type
Private limited company
Incorporated
16 March 2023 (3 years ago)
Registered office
Unit 44D Dukesway, Teesside Industrial Estate, Stockton-on-Tees, TS17 9LT
Nature of business
Electrical installation (SIC 43210)
Plumbing, heat and air-conditioning installation (SIC 43220)
Year end
31 March (accounting reference date)
Accounts type
Micro-entity
Last accounts made up to
31 March 2025
Last confirmation statement
13 August 2026

Filing notes for electrical contractors

Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.

Similar companies in Stockton-on-Tees

Other active electrical contractors registered in Stockton-on-Tees.

All electrical contractors in Stockton-on-Tees · All trades in Stockton-on-Tees · Electricians across the UK

Frequently asked questions

When are Mustoe Engineering Ltd's accounts due?

Mustoe Engineering Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.

When is Mustoe Engineering Ltd's CT600 due?

The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.

Is Mustoe Engineering Ltd still trading?

Mustoe Engineering Ltd is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.

What does Mustoe Engineering Ltd do?

Mustoe Engineering Ltd is registered under Electrical installation (SIC 43210); Plumbing, heat and air-conditioning installation (SIC 43220).

How old is Mustoe Engineering Ltd?

Mustoe Engineering Ltd was incorporated on 16 March 2023, 3 years ago.

Has Mustoe Engineering Ltd won public sector contracts?

Yes. Mustoe Engineering Ltd has 2 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £92K), most recently from Stockton on Tees Borough Council.

What is the penalty if Mustoe Engineering Ltd files its accounts late?

Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.

Official records

View Mustoe Engineering Ltd on Companies House for filed documents, officers and the full history.

Report an error on this page

Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.

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