- Companies
- Builders
- High Wycombe
- Sym Construction Ltd
Sym Construction Ltd
- Company number
- 15918423
- Incorporated
- 27 Aug 20242 years trading
- Registered office
- 44 Upper Green Street, High Wycombe, HP11 2RD
- Nature of business
- Construction of domestic buildings; Plumbing, heat and air-conditioning installation; Other construction installation
Sym Construction Ltd is a 2-year-old private limited company registered in High Wycombe, company number 15918423, one of 228 building contractors in High Wycombe. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Sym Construction LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Financial snapshot, 2025
From the balance sheet at 31 August 2025, as filed at Companies House.
Where Sym Construction Ltd is registered
The registered office is in High Wycombe (HP11), in the Buckinghamshire local authority area, South East. Show HP11 2RD on a map.
Other trade companies in HP11
- Voltenara Energy LtdInstallers
- 2M Cars Sales LtdMotor traders
- Medway Cars LimitedMotor traders
- Chilterns Air Conditioning LtdPlumbers and heating engineers
- Foundries Roofing and Building LtdFinishing trades
- Service Heat and Cool LimitedPlumbers and heating engineers
- Goat & Co UK LtdProperty developers
- Eighty Eighty Services LimitedElectricians
What happens if Sym 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 15918423
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 August 2024 (2 years ago)
- Registered office
- 44 Upper Green Street, High Wycombe, HP11 2RD
- Nature of business
- Construction of domestic buildings (SIC 41202)
Plumbing, heat and air-conditioning installation (SIC 43220)
Other construction installation (SIC 43290) - Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 26 August 2025
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 High Wycombe
Other active building contractors registered in High Wycombe.
- Tac Construction Limited2014
- Tavion Limited2023
- Thatcher Building & Construction Ltd2024
- Thebest Builders Limited2023
- Thebest Carpentry Limited2018
- Thehubworks Ltd2015
- Threaf Design Ltd2009
- Timbart Building Works Ltd2020
All building contractors in High Wycombe · All trades in High Wycombe · Builders across the UK
Frequently asked questions
When are Sym Construction Ltd's accounts due?
Sym Construction Ltd's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Sym Construction Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Sym Construction Ltd still trading?
Sym Construction 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 Sym Construction Ltd do?
Sym Construction Ltd is registered under Construction of domestic buildings (SIC 41202); Plumbing, heat and air-conditioning installation (SIC 43220); Other construction installation (SIC 43290).
How old is Sym Construction Ltd?
Sym Construction Ltd was incorporated on 27 August 2024, 2 years ago.
What is the penalty if Sym 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 Sym Construction 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.