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Warmpro Insulation Specialists Ltd

ActiveTotal exemption (full) accountsInstallersLondon
Company number
13815359
Incorporated
23 Dec 20214 years trading
Registered office
Greenside House, 50 Station Road, London, N22 7DE
Nature of business
Other construction installation
Accounts due in
79 days
31 Dec 2026
Net assets
-£330K▲
+17.6% on the year before
Cash at bank
£282K▲
At 31 Mar 2026
Employees
13
Average during the year
From the Companies House register, 1 Oct 2026

Warmpro Insulation Specialists Ltd is a 4-year-old private limited company registered in London, company number 13815359, one of 2,278 installation companies (insulation, lifts, shutters and similar) in London. 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 79 days
For the period to 31 Mar 2026
CT600 due
31 Mar 2027
in 169 days
Period 1 Apr 2025 to 31 Mar 2026
Corporation tax payment
1 Jan 2027
in 80 days
9 months and 1 day after the period end
Confirmation statement
4 Apr 2027
in 173 days
Last made up to 21 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 £70K (+17.6%) on the year before, to -£330K.
  • Net assets rose in 1 of 3 year-on-year comparisons on record.
  • Current assets of £1.4M against £1.2M owed within a year: 1.2 times cover.
  • 13 employees on average, down from 14 the year before.
  • Balance sheets on record for 4 years, 2023 to 2026.

Net assets by year

Net assets at each year end, 2023 to 2026-£400K-£200K£031 March 2023: net assets £14K£14K202331 March 2024: net assets -£301K-£301K202431 March 2025: net assets -£400K-£400K202531 March 2026: net assets -£330K-£330K2026
Net assets at each year end, 2023 to 2026-£400K-£200K£031 March 2023: net assets £14K£14K202331 March 2024: net assets -£301K-£301K202431 March 2025: net assets -£400K-£400K202531 March 2026: net assets -£330K-£330K2026
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Mar 2026-£330K£282K£1.4M£1.2M13
31 Mar 2025-£400K£3,962£455K£327K14
31 Mar 2024-£301K£150K£440K8
31 Mar 2023£14K£366K£350K1

Public contracts won

Warmpro Insulation Specialists Ltd has 9 public sector contract awards on record; the ones with their own published value total £3.2M, from 2023 to 2026. Source: Contracts Finder and Find a Tender award notices. For 6 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. 8 of these were matched by the company's exact name because the notice gave no company number.

Awards by year

20234
20253
20262

Main buyers

  • Suffolk County Council3 awards
  • Flagship Housing Limited2 awards
  • Tuntum Housing Association1 award
  • Suffolk County Council1 award
  • Oadby & Wigston Borough Council1 award
BuyerContractValueAwarded
Flagship Housing LimitedEnergy Efficiency Retrofit Installation Contractors and Consultants and associated services£237K10 Jul 2026
Tuntum Housing Association(DPS 7771) Lot 1 - Installation of Multiple Insulation Measures - WHSHF - Tuntum HousingCeiling, not shown1 Jan 2026
Suffolk County CouncilSuffolk Energy Action Framework Add columnCeiling, not shown8 Dec 2025
Flagship Housing LimitedEnergy Efficiency Retrofit Installation Contractors and Consultants and associated servicesCeiling, not shown17 Oct 2025
Oadby & Wigston Borough Council(DPS 7713) Whole House Retrofit Main Contractor WHLG - Oadby & Wigston BCCeiling, not shown19 Sep 2025
Suffolk County Council (Directorates)Lot 1c Energy Efficiency - Insulation - West Suffolk and Babergh Council Area - AWARD£1.5M19 Dec 2023
Suffolk County CouncilInstallation of insulation for HUG2 - Ipswich and Mid Suffolk Councils area - AWARD£1.5M12 Dec 2023
Suffolk County CouncilSuffolk Energy Action FrameworkCeiling, not shown16 Nov 2023
Suffolk County CouncilSuffolk Energy Action Framework - AWARDCeiling, not shown12 Sep 2023

Where Warmpro Insulation Specialists Ltd is registered

Warmpro Insulation Specialists Ltd's registered office on a map of the UK

The registered office is in London (N22), in the Haringey local authority area, London. Show N22 7DE on a map.

Other trade companies in N22

Also registered at this address

1 other company uses the same registered office as Warmpro Insulation Specialists Ltd.

What happens if Warmpro Insulation Specialists 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
13815359
Status
Active
Company type
Private limited company
Incorporated
23 December 2021 (4 years ago)
Registered office
Greenside House, 50 Station Road, London, N22 7DE
Nature of business
Other construction installation (SIC 43290)
Year end
31 March (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
31 March 2025
Last confirmation statement
21 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

Other active installation companies (insulation, lifts, shutters and similar) registered in London.

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Frequently asked questions

When are Warmpro Insulation Specialists Ltd's accounts due?

Warmpro Insulation Specialists Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.

When is Warmpro Insulation Specialists 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 Warmpro Insulation Specialists Ltd still trading?

Warmpro Insulation Specialists 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 Warmpro Insulation Specialists Ltd do?

Warmpro Insulation Specialists Ltd is registered under Other construction installation (SIC 43290).

How old is Warmpro Insulation Specialists Ltd?

Warmpro Insulation Specialists Ltd was incorporated on 23 December 2021, 4 years ago.

Has Warmpro Insulation Specialists Ltd won public sector contracts?

Yes. Warmpro Insulation Specialists Ltd has 9 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £3.2M), most recently from Flagship Housing Limited.

What is the penalty if Warmpro Insulation Specialists 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 Warmpro Insulation Specialists 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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