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Construction Surge Ltd

ActiveMicro-entity accountsInstallersLondon
Company number
11989652
Incorporated
10 May 20197 years trading
Registered office
17 Nottingham Street, Lower Ground Floor East, London, W1U 5EW
Nature of business
Other construction installation; Other building completion and finishing; Management consultancy activities other than financial management; Engineering related scientific and technical consulting activities
Accounts due in
139 days
28 Feb 2027
Net assets
£25K▲
+178.4% on the year before
Employees
2
Average during the year
From the Companies House register, 1 Oct 2026

Construction Surge Ltd is a 7-year-old private limited company registered in London, company number 11989652, one of 2,278 installation companies (insulation, lifts, shutters and similar) in London. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 2027.

Key dates

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

Accounts due
28 Feb 2027
in 139 days
For the period to 31 May 2026
CT600 due
31 May 2027
in 231 days
Period 1 Jun 2025 to 31 May 2026
Corporation tax payment
1 Mar 2027
in 140 days
9 months and 1 day after the period end
Confirmation statement
1 Apr 2027
in 171 days
Last made up to 18 Mar 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 £57K (+178.4%) on the year before, to £25K.
  • Net assets rose in 4 of 5 year-on-year comparisons on record.
  • Current assets of £223K against £173K owed within a year: 1.3 times cover.
  • 2 employees on average, down from 3 the year before.
  • Balance sheets on record for 6 years, 2020 to 2025.

Net assets by year

Net assets at each year end, 2020 to 2025-£100K-£50K£031 May 2020: net assets -£66K-£66K202031 May 2021: net assets £17K£17K202131 May 2022: net assets -£115K-£115K202231 May 2023: net assets -£62K-£62K202331 May 2024: net assets -£32K-£32K202431 May 2025: net assets £25K£25K2025
Net assets at each year end, 2020 to 2025-£100K-£50K£031 May 2020: net assets -£66K-£66K202031 May 2021: net assets £17K£17K202131 May 2022: net assets -£115K-£115K202231 May 2023: net assets -£62K-£62K202331 May 2024: net assets -£32K-£32K202431 May 2025: net assets £25K£25K2025
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 May 2025£25K£223K£173K2
31 May 2024-£32K£193K£126K3
31 May 2023-£62K£144K£125K2
31 May 2022-£115K£180K£176K2
31 May 2021£17K£85K£134K2
31 May 2020-£66K-£173K£155K4

Where Construction Surge Ltd is registered

Construction Surge Ltd's registered office on a map of the UK

The registered office is in London (W1U), in the Westminster local authority area, London. Show W1U 5EW on a map.

Other trade companies in W1U

Also registered at this address

1 other company uses the same registered office as Construction Surge Ltd.

What happens if Construction Surge 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 28 February 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Mar 2027 to 31 Mar 2027£150
1 to 3 months late1 Apr 2027 to 31 May 2027£375
3 to 6 months late1 Jun 2027 to 31 Aug 2027£750
More than 6 months lateFrom 1 Sep 2027£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Jun 2027£200
3 months late31 Aug 2027another £200
6 months late30 Nov 2027HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 May 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
11989652
Status
Active
Company type
Private limited company
Incorporated
10 May 2019 (7 years ago)
Registered office
17 Nottingham Street, Lower Ground Floor East, London, W1U 5EW
Nature of business
Other construction installation (SIC 43290)
Other building completion and finishing (SIC 43390)
Management consultancy activities other than financial management (SIC 70229)
Engineering related scientific and technical consulting activities (SIC 71122)
Year end
31 May (accounting reference date)
Accounts type
Micro-entity
Last accounts made up to
31 May 2025
Last confirmation statement
18 March 2026

Filing notes for installation companies (insulation, lifts, shutters and similar)

Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.

Similar companies in London

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Frequently asked questions

When are Construction Surge Ltd's accounts due?

Construction Surge Ltd's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.

When is Construction Surge Ltd's CT600 due?

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

Is Construction Surge Ltd still trading?

Construction Surge 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 Construction Surge Ltd do?

Construction Surge Ltd is registered under Other construction installation (SIC 43290); Other building completion and finishing (SIC 43390); Management consultancy activities other than financial management (SIC 70229); Engineering related scientific and technical consulting activities (SIC 71122).

How old is Construction Surge Ltd?

Construction Surge Ltd was incorporated on 10 May 2019, 7 years ago.

What is the penalty if Construction Surge 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 Construction Surge 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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