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- Clyde Mechanical Services Limited
Company profile · Plumbers and heating engineers
Clyde Mechanical Services Limited
Clyde Mechanical Services Limited is a 19-year-old private limited company registered in Northampton, company number 06007621, one of 197 plumbing and heating companies in Northampton. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 30 November 2025, as filed at Companies House.
Clyde Mechanical Services Limited over the years
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 £17K (+10.1%) on the year before, to £188K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £180K against £12K owed within a year: more than 10 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 |
|---|---|---|---|---|---|
| 30 Nov 2025 | £188K | £23K | £180K | £12K | 0 |
| 30 Nov 2024 | £171K | £39K | £164K | £12K | 0 |
| 30 Nov 2023 | £159K | £1,287 | £190K | £22K | 2 |
| 30 Nov 2022 | £217K | £342K | £559K | £131K | 2 |
| 30 Nov 2021 | £316K | £17K | £688K | £124K | 3 |
| 30 Nov 2020 | £415K | £202K | £464K | £22K | 3 |
| 30 Nov 2019 | £391K | £23K | £491K | £116K | 2 |
| 30 Nov 2018 | £285K | £3,569 | £781K | £500K | |
| 30 Nov 2017 | £303K | £12K | £535K | £460K | |
| 30 Nov 2016 | £337K | £129K | £276K | £399K |
Where Clyde Mechanical Services Limited is registered
The registered office is in Northampton (NN1), in the West Northamptonshire local authority area, East Midlands. Show NN1 3JE on a map.
Other trade companies in NN1
- Triple Aaa Holdings LtdPainters and decorators
- Cosy Dove+ LimitedBuilders
- Remedy Property Services LtdSpecialist contractors
- Deezi LtdJoiners and carpenters
- Setup Phone LtdRepair services
- Macmarlloe LtdPlumbers and heating engineers
- Robertconstructor LtdBuilders
- DSB Ground Works LtdBuilders
What happens if Clyde Mechanical Services 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 06007621
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 November 2006 (19 years ago)
- Registered office
- 21 Clare Street, Northampton, NN1 3JE
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 23 November 2025
- Charges (mortgages)
- 2 outstanding of 4 registered
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 Northampton
Other active plumbing and heating companies registered in Northampton.
- CNS Heating, Plumbing and Air Conditioning Ltd2026
- Co2 Gas & Heating Ltd2026
- Collingtree Cool Ltd2026
- Cool Space Solutions Limited2025
- Cooltherm Air Conditioning Ltd2022
- County Cooling & Electrical Ltd2026
- CSC Plumbing and Heating Ltd2019
- D & C Heating Services Limited2014
All plumbing and heating companies in Northampton · All trades in Northampton · Plumbers and heating engineers across the UK
Frequently asked questions
When are Clyde Mechanical Services Limited's accounts due?
Clyde Mechanical Services Limited's next accounts are due at Companies House by 31 August 2027 (in 323 days), covering the period to 30 November 2026.
When is Clyde Mechanical Services Limited's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is Clyde Mechanical Services Limited still trading?
Clyde Mechanical Services 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 Clyde Mechanical Services Limited do?
Clyde Mechanical Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Clyde Mechanical Services Limited?
Clyde Mechanical Services Limited was incorporated on 23 November 2006, 19 years ago.
What is the penalty if Clyde Mechanical Services 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 Clyde Mechanical Services 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.