- Company number
- 16734649
- Incorporated
- 22 Sep 20251 year trading
- Registered office
- Carreg Y Garth Isaf, Rhiwlas, Bangor, LL57 4GA
- Nature of business
- Roofing activities
Cai Williams Roofing Services Ltd is a 1-year-old private limited company registered in Bangor, company number 16734649, one of 7 roofing companies in Bangor. Its next accounts are due at Companies House on 22 June 2027, and its first CT600 is due at HMRC on 21 September 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 Cai Williams Roofing Services Ltd is registered
The registered office is in Bangor (LL57), in the Gwynedd local authority area, Wales. Show LL57 4GA on a map.
Other trade companies in LL57
- Purple Plumbers LimitedPlumbers and heating engineers
- E.R.A Humphreys LimitedCivil engineering
- Morris&Owens LimitedPlasterers
- North Coast Carpentry and Construction LimitedJoiners and carpenters
- P M Williams & Son LtdBuilders
- K Gorilla Cars LtdMotor traders
- Gwynedd Scaffolding LimitedScaffolders
- J&G Building and Assembling LtdBuilders
Also registered at this address
4 other companies use the same registered office as Cai Williams Roofing Services Ltd.
- L Haworth Landscaping & Construction LtdBuilders
- Luck of the Draw Competitions LtdMotor traders
- Snowdonia Landscaping LimitedLandscapers and gardeners
- Tubs 2 Pools LtdBuilders
What happens if Cai Williams Roofing Services 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 22 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 23 Jun 2027 to 22 Jul 2027 | £150 |
| 1 to 3 months late | 23 Jul 2027 to 22 Sep 2027 | £375 |
| 3 to 6 months late | 23 Sep 2027 to 22 Dec 2027 | £750 |
| More than 6 months late | From 23 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 16734649
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 September 2025 (1 year ago)
- Registered office
- Carreg Y Garth Isaf, Rhiwlas, Bangor, LL57 4GA
- Nature of business
- Roofing activities (SIC 43910)
- Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
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 Bangor
Other active roofing companies registered in Bangor.
- KS Roofing & Property Maintenance Ltd2026
- Nant Ffrancon Roofing Ltd2025
- Owen & Davies Roofing and Solar Ltd2025
- Sion Owens Roofing Limited2023
- Anglesey Roofing Company Limited2005
- Assured Pro Roofing Ltd2026
All roofing companies in Bangor · All trades in Bangor · Roofers across the UK
Frequently asked questions
When are Cai Williams Roofing Services Ltd's accounts due?
Cai Williams Roofing Services Ltd's next accounts are due at Companies House by 22 June 2027 (in 252 days), covering the period to 30 September 2026.
When is Cai Williams Roofing Services 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 21 September 2026, due by 21 September 2027, and one for the period to 30 September 2026, due by 30 September 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Cai Williams Roofing Services Ltd still trading?
Cai Williams Roofing Services Ltd is listed as active on the Companies House register (checked 13 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 Cai Williams Roofing Services Ltd do?
Cai Williams Roofing Services Ltd is registered under Roofing activities (SIC 43910).
How old is Cai Williams Roofing Services Ltd?
Cai Williams Roofing Services Ltd was incorporated on 22 September 2025, 1 year ago.
What is the penalty if Cai Williams Roofing Services 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 Cai Williams Roofing Services Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.