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  4. Maskold Environmental Limited

Maskold Environmental Limited

ActiveTotal exemption (full) accountsMachinery repair and installationLondon
Company number
07652817
Incorporated
31 May 201115 years trading
Registered office
Unit 70, Wimbledon Stadium Business Centre, Rosemary Road, London, SW17 0AR
Nature of business
Repair of other equipment; Steam and air conditioning supply
Accounts due in
352 days
30 Sep 2027
Net assets
£1.1M▲
+11.4% on the year before
Cash at bank
£1.2M▲
At 31 Dec 2025
Employees
27
Average during the year
From the Companies House register, 1 Oct 2026

Maskold Environmental Limited is a 15-year-old private limited company registered in London, company number 07652817, one of 1,743 machinery repair and installation companies in London. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 2027.

Key dates

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

Accounts due
30 Sep 2027
in 352 days
For the period to 31 Dec 2026
CT600 due
31 Dec 2027
in 444 days
Period 1 Jan 2026 to 31 Dec 2026
Corporation tax payment
1 Oct 2027
in 353 days
9 months and 1 day after the period end
Confirmation statement
14 Jun 2027
in 244 days
Last made up to 31 May 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 £116K (+11.4%) on the year before, to £1.1M.
  • Net assets rose in 8 of 9 year-on-year comparisons on record.
  • Current assets of £1.6M against £657K owed within a year: 2.5 times cover.
  • 27 employees on average, up from 24 the year before.
  • Balance sheets on record for 10 years, 2016 to 2025.

Net assets by year

Net assets at each year end, 2016 to 2025£0£500K£1M31 December 2016: net assets £65K£65K201631 December 2017: net assets £207K£207K201731 December 2018: net assets £295K£295K201831 December 2019: net assets £506K£506K201931 December 2020: net assets £324K£324K202031 December 2021: net assets £710K£710K202131 December 2022: net assets £821K£821K202231 December 2023: net assets £947K£947K202331 December 2024: net assets £1M£1M202431 December 2025: net assets £1.1M£1.1M2025
Net assets at each year end, 2016 to 2025£0£500K£1M31 December 2016: net assets £65K£65K'1631 December 2017: net assets £207K£207K'1731 December 2018: net assets £295K£295K'1831 December 2019: net assets £506K£506K'1931 December 2020: net assets £324K£324K'2031 December 2021: net assets £710K£710K'2131 December 2022: net assets £821K£821K'2231 December 2023: net assets £947K£947K'2331 December 2024: net assets £1M£1M'2431 December 2025: net assets £1.1M£1.1M'25
Year endNet assetsCashCurrent assetsOwed within a yearEmployees
31 Dec 2025£1.1M£1.2M£1.6M£657K27
31 Dec 2024£1M£962K£1.4M£578K24
31 Dec 2023£947K£792K£1.3M£506K24
31 Dec 2022£821K£870K£1.4M£708K24
31 Dec 2021£710K£617K£1.3M£767K24
31 Dec 2020£324K£533K£1.1M£1.1M20
31 Dec 2019£506K£669K£1M£811K20
31 Dec 2018£295K£713K£1.1M£933K18
31 Dec 2017£207K£233K£738K£628K14
31 Dec 2016£65K£220K£513K£484K12

Public contracts won

Maskold Environmental Limited has 2 public sector contract awards on record; the ones with their own published value total £47K, from 2024 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

20241
20261

Main buyers

  • University Hospitals Sussex NHS Foundation Trust1 award
  • Partners Procurement Service1 award
BuyerContractValueAwarded
University Hospitals Sussex NHS Foundation TrustRefrigeration/Freezer ReplacementCeiling, not shown15 Sep 2026
Partners Procurement Service2 X Cold Room Refurb£47K17 Dec 2024

Where Maskold Environmental Limited is registered

Maskold Environmental Limited's registered office on a map of the UK

The registered office is in London (SW17), in the Wandsworth local authority area, London. Show SW17 0AR on a map.

Other trade companies in SW17

What happens if Maskold Environmental Limited 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 30 September 2027.

Companies HouseAccounts deliveredPenalty
Up to 1 month late1 Oct 2027 to 31 Oct 2027£150
1 to 3 months late1 Nov 2027 to 31 Dec 2027£375
3 to 6 months late1 Jan 2028 to 31 Mar 2028£750
More than 6 months lateFrom 1 Apr 2028£1,500

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

HMRC (CT600)FromPenalty
1 day late1 Jan 2028£200
3 months late31 Mar 2028another £200
6 months late30 Jun 2028HMRC estimates the tax and adds 10% of the unpaid tax
12 months late31 Dec 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
07652817
Status
Active
Company type
Private limited company
Incorporated
31 May 2011 (15 years ago)
Registered office
Unit 70, Wimbledon Stadium Business Centre, Rosemary Road, London, SW17 0AR
Nature of business
Repair of other equipment (SIC 33190)
Steam and air conditioning supply (SIC 35300)
Year end
31 December (accounting reference date)
Accounts type
Total exemption (full)
Last accounts made up to
31 December 2025
Last confirmation statement
31 May 2026
Charges (mortgages)
0 outstanding of 2 registered

Filing notes for machinery repair and installation companies

Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.

Similar companies in London

Other active machinery repair and installation companies registered in London.

All machinery repair and installation companies in London · All trades in London · Machinery repair and installation across the UK

Frequently asked questions

When are Maskold Environmental Limited's accounts due?

Maskold Environmental Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.

When is Maskold Environmental Limited's CT600 due?

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

Is Maskold Environmental Limited still trading?

Maskold Environmental Limited 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 Maskold Environmental Limited do?

Maskold Environmental Limited is registered under Repair of other equipment (SIC 33190); Steam and air conditioning supply (SIC 35300).

How old is Maskold Environmental Limited?

Maskold Environmental Limited was incorporated on 31 May 2011, 15 years ago.

Has Maskold Environmental Limited won public sector contracts?

Yes. Maskold Environmental Limited has 2 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £47K), most recently from University Hospitals Sussex NHS Foundation Trust.

What is the penalty if Maskold Environmental Limited 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 Maskold Environmental Limited 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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