- Companies
- Finishing trades
- Tiverton
- Culmex Construction Ltd
Culmex Construction Ltd
- Company number
- 12706740
- Incorporated
- 30 Jun 20206 years trading
- Registered office
- 32 Mountbatten Road, Tiverton, EX16 6SW
- Nature of business
- Other building completion and finishing
Culmex Construction Ltd is a 6-year-old private limited company registered in Tiverton, company number 12706740, one of 11 building finishing companies in Tiverton. 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.
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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 £120K on the year before, to £122K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £375K against £296K owed within a year: 1.3 times cover.
- 11 employees on average, down from 12 the year before.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £122K | £70K | £375K | £296K | 11 |
| 31 Mar 2024 | £1,817 | £56K | £193K | £210K | 12 |
| 31 Mar 2023 | £38K | £47K | £159K | £127K | 10 |
| 31 Mar 2022 | £23K | £74K | £66K | 6 | |
| 31 Mar 2021 | £1 | £1 |
Public contracts won
Culmex Construction Ltd has one public sector contract award on record (2025). Source: Contracts Finder and Find a Tender award notices. For all 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. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Devon County Council | CP2549-24: Devon and Somerset Standing List of Approved Contractors (SLoAC) 2025 | Ceiling, not shown | 4 Apr 2025 |
Where Culmex Construction Ltd is registered
The registered office is in Tiverton (EX16), in the Mid Devon local authority area, South West. Show EX16 6SW on a map.
Other trade companies in EX16
- Harmont Holdings LtdProperty developers
- The Pool Badger Pool Services LtdCleaning companies
- Bampton Cottages LtdProperty developers
- Complete Sheds UK LimitedBuilders
- Tiverton United LimitedBuilders
- Freeform Landscapes LtdLandscapers and gardeners
- Zlatka Oneway LimitedBuilders
- Vasil Enterprise LimitedBuilders
Also registered at this address
1 other company uses the same registered office as Culmex Construction Ltd.
- Culmex Scaffolding LtdScaffolders
What happens if Culmex Construction 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 House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 12706740
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 June 2020 (6 years ago)
- Registered office
- 32 Mountbatten Road, Tiverton, EX16 6SW
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 29 June 2026
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in Tiverton
Other active building finishing companies registered in Tiverton.
- D. Loftus Carpentry Ltd2023
- Devon Granite Limited2004
- FCS Balment and Sons Limited2003
- Freeman & French Limited2003
- James Loftus Construction Ltd2020
- JLG Construction Services Ltd2016
- L & A.T Design Limited2024
- Locksmiths & Security Ltd2023
All building finishing companies in Tiverton · All trades in Tiverton · Finishing trades across the UK
Frequently asked questions
When are Culmex Construction Ltd's accounts due?
Culmex Construction Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Culmex Construction 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 Culmex Construction Ltd still trading?
Culmex Construction 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 Culmex Construction Ltd do?
Culmex Construction Ltd is registered under Other building completion and finishing (SIC 43390).
How old is Culmex Construction Ltd?
Culmex Construction Ltd was incorporated on 30 June 2020, 6 years ago.
Has Culmex Construction Ltd won public sector contracts?
Yes. Culmex Construction Ltd has one contract award from public bodies on Contracts Finder and Find a Tender, most recently from Devon County Council.
What is the penalty if Culmex Construction 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 Culmex Construction Ltd 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.