- Companies
- Cleaning companies
- Swindon
- Chimney Mechanics Ltd
Chimney Mechanics Ltd
- Company number
- 10999783
- Incorporated
- 6 Oct 20179 years trading
- Registered office
- Delta 606 Welton Road, Delta Office Park, Swindon, SN5 7XF
- Nature of business
- Furnace and chimney cleaning services
Chimney Mechanics Ltd is a 9-year-old private limited company registered in Swindon, company number 10999783, one of 169 cleaning companies in Swindon. 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 £2,778 (+133.9%) on the year before, to £4,852.
- Net assets rose in 5 of 7 year-on-year comparisons on record.
- Current assets of £13K against £8,409 owed within a year: 1.5 times cover.
- 2 employees 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 | £4,852 | £10K | £13K | £8,409 | 2 |
| 31 Mar 2024 | £2,074 | £6,328 | £7,497 | £9,281 | 2 |
| 31 Mar 2023 | £10K | £11K | £13K | £11K | 2 |
| 31 Mar 2022 | £1,441 | £8,695 | £11K | £21K | 2 |
| 31 Mar 2021 | £212 | £9,431 | £12K | £26K | 2 |
| 31 Mar 2020 | £100 | £85 | £4,587 | £6,196 | 2 |
| 31 Mar 2019 | £99 | £3,890 | £5,408 | £7,459 | 2 |
| 31 Mar 2018 | £136 | £4,668 | £6,650 | £9,300 | 2 |
Where Chimney Mechanics Ltd is registered
The registered office is in Swindon (SN5), in the Swindon local authority area, South West. Show SN5 7XF on a map.
Other trade companies in SN5
- Pye Landworks LtdLandscapers and gardeners
- Valley View Construction LtdBuilders
- Rideout Electrical LtdElectricians
- Xyq LtdBuilders
- Patch & Polish by the Sadlers LtdInstallers
- BXM Automotive Assets LimitedMotor traders
- D L Heating and Cooling LtdPlumbers and heating engineers
- Andy Gardening Services LtdLandscapers and gardeners
Also registered at this address
11 other companies use the same registered office as Chimney Mechanics Ltd.
- 4 Way Construction LimitedJoiners and carpenters
- A.R.J Landscape LtdLandscapers and gardeners
- All You Can Heat Gas Services LtdPlumbers and heating engineers
- Bassett Auto Bodies Ltd.Mechanics and garages
- Core Construction Wiltshire LimitedSpecialist contractors
- Dra Property Services LimitedFinishing trades
- Justelec LimitedElectricians
- LDS Plumbing & Heating LimitedPlumbers and heating engineers
- Luckton LimitedProperty developers
- MRT Jet LimitedMechanics and garages
- Royall Plumbing LimitedPlumbers and heating engineers
What happens if Chimney Mechanics 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
- 10999783
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 October 2017 (9 years ago)
- Registered office
- Delta 606 Welton Road, Delta Office Park, Swindon, SN5 7XF
- Nature of business
- Furnace and chimney cleaning services (SIC 81223)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 5 October 2025
Filing notes for cleaning companies
Cleaning companies are often staff-heavy, so wages, pension contributions and the employment allowance all show up in the accounts.
Similar companies in Swindon
Other active cleaning companies registered in Swindon.
- Choma Vibes Ltd2025
- CL Cleanz Ltd2026
- Claudie's Car Cleaning Ltd2022
- Clean Eco Ltd2022
- Clean Slate Swindon Ltd2021
- Cofal Solutions Ltd2025
- Coman Car Wash Ltd2026
- Craig's Professional Cleaning Services Ltd2025
All cleaning companies in Swindon · All trades in Swindon · Cleaning companies across the UK
Frequently asked questions
When are Chimney Mechanics Ltd's accounts due?
Chimney Mechanics 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 Chimney Mechanics 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 Chimney Mechanics Ltd still trading?
Chimney Mechanics 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 Chimney Mechanics Ltd do?
Chimney Mechanics Ltd is registered under Furnace and chimney cleaning services (SIC 81223).
How old is Chimney Mechanics Ltd?
Chimney Mechanics Ltd was incorporated on 6 October 2017, 9 years ago.
What is the penalty if Chimney Mechanics 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 Chimney Mechanics 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.