- Companies
- Plumbers and heating engineers
- Lancaster
- Boak Mechanical Services Ltd
Boak Mechanical Services Ltd
- Company number
- 10911940
- Incorporated
- 11 Aug 20179 years trading
- Registered office
- Suite 2, 2 Mannin Way, Lancaster Business Park, Caton Road, Lancaster, LA1 3SU
- Nature of business
- Plumbing, heat and air-conditioning installation
Boak Mechanical Services Ltd is a 9-year-old private limited company registered in Lancaster, company number 10911940, one of 49 plumbing and heating companies in Lancaster. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 down £51 (-11.6%) on the year before, to £387.
- Net assets rose in 3 of 7 year-on-year comparisons on record.
- Current assets of £51K against £51K owed within a year: 1.0 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £387 | £20K | £51K | £51K | 1 |
| 31 Mar 2024 | £438 | £2,172 | £56K | £43K | 1 |
| 31 Aug 2023 | £606 | £7,151 | £64K | £46K | 1 |
| 31 Aug 2022 | £28K | £34K | £85K | £30K | 1 |
| 31 Aug 2021 | £58K | £62K | £136K | £43K | 1 |
| 31 Aug 2020 | £43K | £83K | £121K | £30K | 1 |
| 31 Aug 2019 | £13K | £21K | £38K | £28K | 1 |
| 31 Aug 2018 | £8,778 | £3,196 | £35K | £30K | 1 |
Where Boak Mechanical Services Ltd is registered
The registered office is in Lancaster (LA1), in the Lancaster local authority area, North West. Show LA1 3SU on a map.
Other trade companies in LA1
- Callender Construction LtdBuilders
- Calmor Construction LimitedBuilders
- C. Calvert Construction LtdSpecialist contractors
- Matt Catterall LtdInstallers
- Tri-Arc Properties LtdFinishing trades
- Connect Solar LtdElectricians
- Bailey and Sons Joinery LimitedBuilders
- Sassc LtdBuilders
Also registered at this address
5 other companies use the same registered office as Boak Mechanical Services Ltd.
- Brad Atkinson Plumbing and Heating LimitedPlumbers and heating engineers
- Bryan Hoggarth LimitedMachinery repair and installation
- Culligans Leisure LtdMotor traders
- Premier Development Projects LimitedJoiners and carpenters
- South Lakes Drain Jetting LimitedCleaning companies
What happens if Boak Mechanical 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 10911940
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 August 2017 (9 years ago)
- Registered office
- Suite 2, 2 Mannin Way, Lancaster Business Park, Caton Road, Lancaster, LA1 3SU
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 3 August 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 Lancaster
Other active plumbing and heating companies registered in Lancaster.
- Brad Atkinson Plumbing and Heating Limited2021
- Bwplumbing Ltd2022
- Chris Robinson (Plumb-Fast) Limited2019
- Cooling & Heating Services Ltd2014
- CRW Plumbing and Gas Services Ltd2012
- D R Shepherd Plumbing & Heating Ltd2021
- David Armstrong Plumbing and Heating Limited2005
- David J Dickinson & Sons Limited2023
All plumbing and heating companies in Lancaster · All trades in Lancaster · Plumbers and heating engineers across the UK
Frequently asked questions
When are Boak Mechanical Services Ltd's accounts due?
Boak Mechanical Services Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Boak Mechanical Services Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Boak Mechanical Services Ltd still trading?
Boak Mechanical Services 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 Boak Mechanical Services Ltd do?
Boak Mechanical Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Boak Mechanical Services Ltd?
Boak Mechanical Services Ltd was incorporated on 11 August 2017, 9 years ago.
What is the penalty if Boak Mechanical 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 Boak Mechanical Services 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.