- Companies
- Specialist contractors
- Croydon
- Martek Contracts Limited
Martek Contracts Limited
- Company number
- 01621476
- Incorporated
- 11 Mar 198244 years trading
- Registered office
- High Point Mill King Henrys Drive, New Addington, Croydon, CR0 0AE
- Nature of business
- Other specialised construction activities n.e.c.
Martek Contracts Limited is a 44-year-old private limited company registered in Croydon, company number 01621476, one of 124 specialist construction companies in Croydon. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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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 £113K (+21.4%) on the year before, to £643K.
- Net assets rose in 4 of 6 year-on-year comparisons on record.
- Current assets of £1.3M against £676K owed within a year: 1.9 times cover.
- 38 employees on average during the year.
- Balance sheets on record for 7 years, 2020 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £643K | £96K | £1.3M | £676K | 38 |
| 31 Mar 2025 | £530K | £3,244 | £1.4M | £845K | 38 |
| 31 Mar 2024 | £462K | £20K | £1.4M | £757K | 39 |
| 31 Mar 2023 | £414K | £235K | £1.4M | £717K | 43 |
| 31 Mar 2022 | £193K | £289K | £1.7M | £1M | 47 |
| 31 Mar 2021 | £865K | £1.1M | £2.5M | £964K | 56 |
| 31 Mar 2020 | £1.1M | £14K | £2M | £909K | 65 |
Where Martek Contracts Limited is registered
The registered office is in Croydon (CR0), in the Croydon local authority area, London. Show CR0 0AE on a map.
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- Premier Kitchen Installations LimitedJoiners and carpenters
- VR1 Construct LtdBuilders
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- Kok Cons LtdBuilders
Also registered at this address
1 other company uses the same registered office as Martek Contracts Limited.
- Martek Joinery LimitedJoiners and carpenters
What happens if Martek Contracts 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 31 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | another 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
- 01621476
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 March 1982 (44 years ago)
- Registered office
- High Point Mill King Henrys Drive, New Addington, Croydon, CR0 0AE
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 30 October 2025
- Charges (mortgages)
- 1 outstanding of 2 registered
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Croydon
Other active specialist construction companies registered in Croydon.
- MB Ductwork Limited2015
- Medgas Services Ltd2017
- Mister Fixer (Croydon) Ltd2026
- Mli Controls Ltd2015
- Modern Metal Windows Limited2010
- Monster Property Services UK Ltd2015
- MP Cons Ltd2026
- Mtek Civil Engineering Ltd2020
All specialist construction companies in Croydon · All trades in Croydon · Specialist contractors across the UK
Frequently asked questions
When are Martek Contracts Limited's accounts due?
Martek Contracts Limited's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is Martek Contracts Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Martek Contracts Limited still trading?
Martek Contracts 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 Martek Contracts Limited do?
Martek Contracts Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Martek Contracts Limited?
Martek Contracts Limited was incorporated on 11 March 1982, 44 years ago.
What is the penalty if Martek Contracts 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 Martek Contracts Limited on Companies House for filed documents, officers and the full history.
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.