- Companies
- Plumbers and heating engineers
- Workington
- A T Aitken & Son Limited
A T Aitken & Son Limited
- Company number
- 09631203
- Incorporated
- 9 Jun 201511 years trading
- Registered office
- Oxford Chambers, New Oxford Street, Workington, Cumbria, CA14 2LR
- Nature of business
- Plumbing, heat and air-conditioning installation
A T Aitken & Son Limited is a 11-year-old private limited company registered in Workington, company number 09631203, one of 17 plumbing and heating companies in Workington. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £560 (+4.2%) on the year before, to -£13K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £46K against £91K owed within a year: 0.5 times cover.
- 2 employees on average, down from 3 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | -£13K | £46K | £91K | 2 | |
| 31 May 2024 | -£13K | £40K | £89K | 3 | |
| 31 May 2023 | -£14K | £54K | £104K | 2 | |
| 31 May 2022 | -£8,148 | £67K | £114K | 0 | |
| 31 May 2021 | -£6,283 | £47K | £63K | 2 | |
| 31 May 2020 | £6,905 | £27K | £45K | 2 | |
| 31 May 2019 | £16K | £17K | £33K | ||
| 31 May 2018 | £12K | £26K | £38K | ||
| 31 May 2017 | £13K | £25K | £14K | ||
| 31 May 2016 | -£545 | £19K | £22K |
Where A T Aitken & Son Limited is registered
The registered office is in Workington (CA14), in the Cumberland local authority area, North West. Show CA14 2LR on a map.
Other trade companies in CA14
- Premier Heating Solutions Cumbria LimitedPlumbers and heating engineers
- Northern Resin LtdFloor and wall tilers
- GRT Property Solutions LtdPlumbers and heating engineers
- Jre Partitions and Ceilings LimitedInstallers
- Fellside Homes & Renovations(Cumbria) LtdProperty developers
- Pristine Plumb & Bath LtdPlumbers and heating engineers
- The Cumbrian Painting Company LtdBuilders
- J.Proud Plastering LtdPlasterers
Also registered at this address
13 other companies use the same registered office as A T Aitken & Son Limited.
- 365 Electrical LtdElectricians
- Agm Facilities Management LtdCleaning companies
- Ak Electrical (Cumbria) LimitedElectricians
- C Hodgson Roofing LimitedRoofers
- David J Fisher LimitedPlumbers and heating engineers
- H&L Cumbria LimitedProperty developers
- Jre Partitions and Ceilings LimitedInstallers
- Mark Richardson Construction LimitedBuilders
- NGP Developments LimitedBuilders
- Nigel Kay Estates LtdProperty developers
- Raemore Homes LimitedBuilders
- S & G Services (Cumbria) LimitedScaffolders
- WGR Developments LimitedProperty developers
What happens if A T Aitken & Son 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 09631203
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 June 2015 (11 years ago)
- Registered office
- Oxford Chambers, New Oxford Street, Workington, Cumbria, CA14 2LR
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 9 June 2026
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Workington
Other active plumbing and heating companies registered in Workington.
- Boilertech - North West Ltd2024
- David J Fisher Limited2002
- Derwent Gas Ltd2016
- Ed Roberts Limited1997
- Energywise Plumbing & Heating Limited2013
- GRT Property Solutions Ltd2026
- Lake District Joinery Services Limited2023
- Lakeland Gas Limited2012
All plumbing and heating companies in Workington · All trades in Workington · Plumbers and heating engineers across the UK
Frequently asked questions
When are A T Aitken & Son Limited's accounts due?
A T Aitken & Son Limited's next accounts are due at Companies House by 28 February 2027 (in 137 days), covering the period to 31 May 2026.
When is A T Aitken & Son Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is A T Aitken & Son Limited still trading?
A T Aitken & Son 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 A T Aitken & Son Limited do?
A T Aitken & Son Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is A T Aitken & Son Limited?
A T Aitken & Son Limited was incorporated on 9 June 2015, 11 years ago.
What is the penalty if A T Aitken & Son 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 A T Aitken & Son 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.