- Companies
- Plumbers and heating engineers
- Northampton
- Northants Boiler Specialists Ltd
Northants Boiler Specialists Ltd
- Company number
- 12703333
- Incorporated
- 29 Jun 20206 years trading
- Registered office
- 4 Paddocks Way, Little Billing, Northampton, NN3 9EU
- Nature of business
- Plumbing, heat and air-conditioning installation
Northants Boiler Specialists Ltd is a 6-year-old private limited company registered in Northampton, company number 12703333, one of 197 plumbing and heating companies in Northampton. 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 £844 (+269.6%) on the year before, to £1,157.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £3,147 against £1,990 owed within a year: 1.6 times cover.
- 3 employees on average, up from 2 the year before.
- 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 | £1,157 | £3,147 | £1,990 | 3 | |
| 31 Mar 2024 | £313 | £255 | £568 | 2 | |
| 30 Jun 2023 | £222 | £329 | £551 | 2 | |
| 30 Jun 2022 | £1,864 | £850 | £0 | 1 | |
| 30 Jun 2021 | £200 | 0 |
Where Northants Boiler Specialists Ltd is registered
The registered office is in Northampton (NN3), in the West Northamptonshire local authority area, East Midlands. Show NN3 9EU on a map.
Other trade companies in NN3
- Building Services LtdBuilders
- Cma Constuction Group LtdSpecialist contractors
- Auto Correct Repairs LtdMotor traders
- LCK & Son LimitedLandscapers and gardeners
- Atlas Engeenering LtdCivil engineering
- Oakwell Energy Systems LtdElectricians
- Imdl Construction LtdBuilders
- BC Developments and Construction Group UK LtdProperty developers
Also registered at this address
2 other companies use the same registered office as Northants Boiler Specialists Ltd.
- Billing Boilers LtdElectricians
- Holywell Heating LtdPlumbers and heating engineers
What happens if Northants Boiler Specialists 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
- 12703333
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 June 2020 (6 years ago)
- Registered office
- 4 Paddocks Way, Little Billing, Northampton, NN3 9EU
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 28 June 2026
- Previous names
- Plumb Patrol Ltd (until 24 Oct 2022)
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.
- Northants Homes Limited2024
- O'Brien Heating Services Limited2018
- Op Ventilations System Ltd2019
- Ouse Valley Plumbing Limited2014
- P A Cassidy (Mechanical Services) Limited1998
- Parsons Plumbing & Heating Services Ltd2025
- Percy's Plumbing & Heating Limited2015
- Phase Mechanical Projects Limited2011
All plumbing and heating companies in Northampton · All trades in Northampton · Plumbers and heating engineers across the UK
Frequently asked questions
When are Northants Boiler Specialists Ltd's accounts due?
Northants Boiler Specialists 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 Northants Boiler Specialists 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 Northants Boiler Specialists Ltd still trading?
Northants Boiler Specialists 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 Northants Boiler Specialists Ltd do?
Northants Boiler Specialists Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Northants Boiler Specialists Ltd?
Northants Boiler Specialists Ltd was incorporated on 29 June 2020, 6 years ago.
What is the penalty if Northants Boiler Specialists 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 Northants Boiler Specialists 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.