- Company number
- 16509304
- Incorporated
- 10 Jun 20251 year trading
- Registered office
- 13 Hull Grove, Harlow, Essex, CM19 5RP
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings; Floor and wall covering; Painting
Altrek Ltd is a 1-year-old private limited company registered in Harlow, company number 16509304, one of 223 building contractors in Harlow. Its next accounts are due at Companies House on 10 March 2027, and its first CT600 is due at HMRC on 9 June 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Altrek Ltd is registered
The registered office is in Harlow (CM19), in the Harlow local authority area, East of England. Show CM19 5RP on a map.
Other trade companies in CM19
- Precision Refits LtdSpecialist contractors
- Solido London LimitedInstallers
- LC Painters LimitedPainters and decorators
- Paul the Gas LtdPlumbers and heating engineers
- Chun-Keys Watches LtdRepair services
- Vpa Detailing and Valeting LimitedCleaning companies
- Herd Property Services LtdFinishing trades
- Crisp & Clean Services LtdCleaning companies
What happens if Altrek 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 10 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 11 Mar 2027 to 10 Apr 2027 | £150 |
| 1 to 3 months late | 11 Apr 2027 to 10 Jun 2027 | £375 |
| 3 to 6 months late | 11 Jun 2027 to 10 Sep 2027 | £750 |
| More than 6 months late | From 11 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 2028 | 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
- 16509304
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 June 2025 (1 year ago)
- Registered office
- 13 Hull Grove, Harlow, Essex, CM19 5RP
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202)
Floor and wall covering (SIC 43330)
Painting (SIC 43341) - Year end
- 30 June (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Harlow
Other active building contractors registered in Harlow.
- Ama Building Progress Ltd2024
- An Ideal Home Limited2017
- Andrius Construction 1 Limited2024
- Andrusca Limited2015
- Anelest Ltd2023
- Arbanorth Ltd2014
- Archyworks Ltd2022
- Arco Buildings Ltd2023
All building contractors in Harlow · All trades in Harlow · Builders across the UK
Frequently asked questions
When are Altrek Ltd's accounts due?
Altrek Ltd's next accounts are due at Companies House by 10 March 2027 (in 149 days), covering the period to 30 June 2026.
When is Altrek Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 9 June 2026, due by 9 June 2027, and one for the period to 30 June 2026, due by 30 June 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Altrek Ltd still trading?
Altrek Ltd is listed as active on the Companies House register (checked 12 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 Altrek Ltd do?
Altrek Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202); Floor and wall covering (SIC 43330); Painting (SIC 43341).
How old is Altrek Ltd?
Altrek Ltd was incorporated on 10 June 2025, 1 year ago.
What is the penalty if Altrek 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 Altrek Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.