- Company number
- 15545900
- Incorporated
- 7 Mar 20242 years trading
- Registered office
- 24 Heol Saffrwm, Morriston, Swansea, West Glamorgan, SA6 6EH
- Nature of business
- Roofing activities
Anvil Flat Roofing Limited is a 2-year-old private limited company registered in Swansea, company number 15545900, one of 47 roofing companies in Swansea. 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.
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Financial snapshot, 2025
From the balance sheet at 31 August 2025, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Where Anvil Flat Roofing Limited is registered
The registered office is in Swansea (SA6), in the Swansea local authority area, Wales. Show SA6 6EH on a map.
Other trade companies in SA6
- Alpine Roofing (Swansea) LimitedRoofers
- Auto Surplus Wales LtdMotor traders
- Roofmaster Roofing and Building LtdProperty developers
- Everyday Maintenance Services LtdSpecialist contractors
- M.E Exterior Cleaning LimitedCleaning companies
- Color Harmony LtdPainters and decorators
- RSM Cars LimitedMotor traders
- T&T Roofing & Home Improvements LtdRoofers
Also registered at this address
1 other company uses the same registered office as Anvil Flat Roofing Limited.
- Anvil Roofing LimitedRoofers
What happens if Anvil Flat Roofing 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 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
- 15545900
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 March 2024 (2 years ago)
- Registered office
- 24 Heol Saffrwm, Morriston, Swansea, West Glamorgan, SA6 6EH
- Nature of business
- Roofing activities (SIC 43910)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 6 March 2026
- Previous names
- Amb Flat Roofing Ltd (until 14 Oct 2024)
Filing notes for roofing companies
Roofing companies commonly work under CIS and run vans and access equipment, so CIS deductions and capital allowances are the two things to get right.
Similar companies in Swansea
Other active roofing companies registered in Swansea.
- Anvil Roofing Limited2021
- Asap Roofing & Building 2020 Ltd2020
- Asap Roofing Swansea Ltd2026
- C M Rees Holdings Ltd2026
- Caimason Roofing Ltd2023
- Charles & Coe Roofing Services Limited2023
- D J Morgan Roofing Ltd2024
- D J Williams & Son Limited2014
All roofing companies in Swansea · All trades in Swansea · Roofers across the UK
Frequently asked questions
When are Anvil Flat Roofing Limited's accounts due?
Anvil Flat Roofing Limited's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Anvil Flat Roofing Limited'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 Anvil Flat Roofing Limited still trading?
Anvil Flat Roofing 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 Anvil Flat Roofing Limited do?
Anvil Flat Roofing Limited is registered under Roofing activities (SIC 43910).
How old is Anvil Flat Roofing Limited?
Anvil Flat Roofing Limited was incorporated on 7 March 2024, 2 years ago.
What is the penalty if Anvil Flat Roofing 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 Anvil Flat Roofing 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.