- Company number
- 17387768
- Incorporated
- 7 Aug 2026
- Registered office
- Glaslyn Ffordd Y Parc, Parc Menai, Bangor, Gwynedd, LL57 4FE
- Nature of business
- Construction of domestic buildings
P M Williams & Son Ltd is a newly incorporated private limited company registered in Bangor, company number 17387768, one of 75 building contractors in Bangor. Its next accounts are due at Companies House on 7 May 2028, and its first CT600 is due at HMRC on 6 August 2028.
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 P M Williams & Son Ltd is registered
The registered office is in Bangor (LL57), in the Gwynedd local authority area, Wales. Show LL57 4FE 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
- K Gorilla Cars LtdMotor traders
- Gwynedd Scaffolding LimitedScaffolders
- J&G Building and Assembling LtdBuilders
- Draig Group LtdBuilders
Also registered at this address
17 other companies use the same registered office as P M Williams & Son Ltd.
- Above the Brine LtdMachinery repair and installation
- Barton & Nichols LimitedMechanics and garages
- Connect Electrical Engineering LtdElectricians
- Du Construction LimitedCivil engineering
- Ecoheat Renewable Energy LtdPlumbers and heating engineers
- Eladon LimitedCivil engineering
- Grosvenor Garage (Menai Bridge) LtdMechanics and garages
- J Alwyn Roberts Plumbing & Heating CyfPlumbers and heating engineers
- Kimberley Gulf LimitedCivil engineering
- MC&RD Williams Building Contractors LtdFinishing trades
- MDK Car & Commercial LimitedMechanics and garages
- Menai Construction LimitedCivil engineering
- Mon Mechanical Services LtdMechanics and garages
- Nexus Engineering (NW) LtdElectricians
- Ombler Williams LimitedJoiners and carpenters
- Robert M Jones LtdPlasterers
- T T Roberts & Son LtdCivil engineering
What happens if P M Williams & Son 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 7 May 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 8 May 2028 to 7 Jun 2028 | £150 |
| 1 to 3 months late | 8 Jun 2028 to 7 Aug 2028 | £375 |
| 3 to 6 months late | 8 Aug 2028 to 7 Nov 2028 | £750 |
| More than 6 months late | From 8 Nov 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2028 | £200 |
| 3 months late | 30 Nov 2028 | another £200 |
| 6 months late | 28 Feb 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 2029 | 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
- 17387768
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 August 2026
- Registered office
- Glaslyn Ffordd Y Parc, Parc Menai, Bangor, Gwynedd, LL57 4FE
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 31 August (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 Bangor
Other active building contractors registered in Bangor.
- PH Brickwork and Groundworks Limited2023
- Portsandel Limited2004
- R J Williams Building Contractor Ltd2019
- R&M Homes N.I. Ltd2017
- Radaconstruct86 Limited2026
- Randalls Road Leatherhead Limited2021
- Redbay Developments Limited1985
- Redbay Holdings Limited2019
All building contractors in Bangor · All trades in Bangor · Builders across the UK
Frequently asked questions
When are P M Williams & Son Ltd's accounts due?
P M Williams & Son Ltd's next accounts are due at Companies House by 7 May 2028 (in 572 days), covering the period to 31 August 2027.
When is P M Williams & Son 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 6 August 2027, due by 6 August 2028, and one for the period to 31 August 2027, due by 31 August 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is P M Williams & Son Ltd still trading?
P M Williams & Son 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 P M Williams & Son Ltd do?
P M Williams & Son Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is P M Williams & Son Ltd?
P M Williams & Son Ltd was incorporated on 7 August 2026, less than a year ago.
What is the penalty if P M Williams & Son 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 P M Williams & Son 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.