- Companies
- Plumbers and heating engineers
- Canterbury
- Summers Mechanical Ltd
Summers Mechanical Ltd
- Company number
- 12670576
- Incorporated
- 15 Jun 20206 years trading
- Registered office
- 48 Millyard Road, Aylesham, Canterbury, CT3 3FP
- Nature of business
- Plumbing, heat and air-conditioning installation
Summers Mechanical Ltd is a 6-year-old private limited company registered in Canterbury, company number 12670576, one of 40 plumbing and heating companies in Canterbury. 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 up £4,904 (+180.1%) on the year before, to £7,627.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £18K against £18K owed within a year: 1.0 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £7,627 | £114 | £18K | £18K | 1 |
| 31 Mar 2024 | £2,723 | £20K | £17K | 1 | |
| 31 Mar 2023 | £3,154 | £38K | £34K | 1 | |
| 31 Mar 2022 | -£9,388 | £26K | £36K | 1 | |
| 31 Mar 2021 | £4,226 | £12K | £7,995 | 1 |
Where Summers Mechanical Ltd is registered
The registered office is in Canterbury (CT3), in the Dover local authority area, South East. Show CT3 3FP on a map.
Other trade companies in CT3
- Toni Shine Cleaning LtdCleaning companies
- Spy & Sons Groundworks LtdGroundworks and demolition
- Kent Groundwork Solutions LtdGroundworks and demolition
- Lovely Cleans Kent LtdCleaning companies
- Circle Property Ventures LtdProperty developers
- Best Price Windows and Doors LimitedInstallers
- Cpe Group Services LimitedGlaziers
- MGC Recovery LtdMechanics and garages
Also registered at this address
1 other company uses the same registered office as Summers Mechanical Ltd.
- Psmechanical LtdPlumbers and heating engineers
What happens if Summers Mechanical 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
- 12670576
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 June 2020 (6 years ago)
- Registered office
- 48 Millyard Road, Aylesham, Canterbury, CT3 3FP
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 14 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 Canterbury
Other active plumbing and heating companies registered in Canterbury.
- TBS Kent Limited2024
- Thermasystems Limited2017
- Turner Bathrooms Limited2022
- Warm Right Limited2025
- Waterstone Plumbing & Drainage Ltd2026
- Whitechappell Plumbing and Heating Limited2014
- Whites of Kent Limited2026
- Whitstable and Canterbury Plumbing and Heating Limited2025
All plumbing and heating companies in Canterbury · All trades in Canterbury · Plumbers and heating engineers across the UK
Frequently asked questions
When are Summers Mechanical Ltd's accounts due?
Summers Mechanical Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Summers Mechanical 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 Summers Mechanical Ltd still trading?
Summers Mechanical 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 Summers Mechanical Ltd do?
Summers Mechanical Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Summers Mechanical Ltd?
Summers Mechanical Ltd was incorporated on 15 June 2020, 6 years ago.
What is the penalty if Summers Mechanical 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 Summers Mechanical 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.