- Companies
- Plumbers and heating engineers
- Leeds
- Kelvinair Maintenance Services Ltd
Kelvinair Maintenance Services Ltd
- Company number
- 03809894
- Incorporated
- 20 Jul 199927 years trading
- Registered office
- Unit 1 Sovereign Business Park, Butterley Street, Leeds, LS10 1AW
- Nature of business
- Plumbing, heat and air-conditioning installation
Kelvinair Maintenance Services Ltd is a 27-year-old private limited company registered in Leeds, company number 03809894, one of 357 plumbing and heating companies in Leeds. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 £67K (+34.1%) on the year before, to £264K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £695K against £431K owed within a year: 1.6 times cover.
- 11 employees on average, up from 8 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 Jul 2025 | £264K | £485K | £695K | £431K | 11 |
| 31 Jul 2024 | £197K | £206K | £652K | £445K | 8 |
| 31 Jul 2023 | £130K | £30K | £472K | £322K | 8 |
| 31 Jul 2022 | £82K | £33K | £301K | £193K | 7 |
| 31 Jul 2021 | £72K | £0 | £401K | £298K | 7 |
| 31 Jul 2020 | £206K | £12K | £766K | £576K | 8 |
| 31 Jul 2019 | £142K | £77K | £601K | £473K | 9 |
| 31 Jul 2018 | £169K | £66K | £379K | £240K | 13 |
| 31 Jul 2017 | £172K | £200K | £418K | £283K | 15 |
| 31 Jul 2016 | £193K | £167K | £356K | £190K |
Where Kelvinair Maintenance Services Ltd is registered
The registered office is in Leeds (LS10), in the Leeds local authority area, Yorkshire and The Humber. Show LS10 1AW on a map.
Other trade companies in LS10
- Mat Luxury Motors LtdMotor traders
- Avm Dryline LtdBuilders
- Nem Build LtdInstallers
- Goodshaw Motors LtdMotor traders
- JW & Son Roofing LtdRoofers
- Doors by Design (Leeds) LtdJoiners and carpenters
- Prime Build & Trade LtdPainters and decorators
- Aehale Electrical LimitedElectricians
What happens if Kelvinair Maintenance 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 03809894
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 July 1999 (27 years ago)
- Registered office
- Unit 1 Sovereign Business Park, Butterley Street, Leeds, LS10 1AW
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 1 July 2026
- Previous names
- T F Pumps Limited (until 4 Nov 2011)
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 Leeds
Other active plumbing and heating companies registered in Leeds.
- KH Plumbing Ltd2025
- Kingswood Ventilation Ltd2015
- Kirk Building Maintenance and Services Ltd2023
- Knowledge Heating Limited2025
- KPR Plumbing & Heating Limited2023
- KSM Plumbing Ltd2017
- Kwell Heating Ltd2020
- L D Griffiths Plumbing & Heating Limited2026
All plumbing and heating companies in Leeds · All trades in Leeds · Plumbers and heating engineers across the UK
Frequently asked questions
When are Kelvinair Maintenance Services Ltd's accounts due?
Kelvinair Maintenance Services Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is Kelvinair Maintenance Services Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Kelvinair Maintenance Services Ltd still trading?
Kelvinair Maintenance 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 Kelvinair Maintenance Services Ltd do?
Kelvinair Maintenance Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Kelvinair Maintenance Services Ltd?
Kelvinair Maintenance Services Ltd was incorporated on 20 July 1999, 27 years ago.
What is the penalty if Kelvinair Maintenance 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 Kelvinair Maintenance 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.