- Companies
- Plumbers and heating engineers
- Keighley
- Northern Mechanical Services Ltd
Northern Mechanical Services Ltd
- Company number
- 10839413
- Incorporated
- 28 Jun 20179 years trading
- Registered office
- 39 Bradley Road, Silsden, Keighley, BD20 9NL
- Nature of business
- Plumbing, heat and air-conditioning installation
Northern Mechanical Services Ltd is a 9-year-old private limited company registered in Keighley, company number 10839413, one of 51 plumbing and heating companies in Keighley. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 down £53K (-34.7%) on the year before, to £100K.
- Net assets rose in 5 of 7 year-on-year comparisons on record.
- Current assets of £247K against £212K owed within a year: 1.2 times cover.
- 11 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 |
|---|---|---|---|---|---|
| 30 Jun 2025 | £100K | £113K | £247K | £212K | 11 |
| 30 Jun 2024 | £153K | £260K | £168K | 11 | |
| 30 Jun 2023 | £100K | £188K | £124K | 7 | |
| 30 Jun 2022 | £70K | £93K | £46K | 8 | |
| 30 Jun 2021 | £95K | £171K | £81K | 5 | |
| 30 Jun 2020 | £66K | £112K | £52K | 6 | |
| 30 Jun 2019 | £31K | £80K | £53K | 6 | |
| 30 Jun 2018 | £591 | £41K | £46K |
Public contracts won
Northern Mechanical Services Ltd has 4 public sector contract awards on record; the ones with their own published value total £76K, from 2021 to 2025. Source: Contracts Finder and Find a Tender award notices. For 2 of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. These were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Bradford Teaching Hospitals NHS Foundation Trust2 awards
- Leeds and York Partnership NHS Foundation Trust, trading as North of England NHS Commercial Procurement Collaborative ("NOE CPC")1 award
- North of England Commercial Procurement Collaborative1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Bradford Teaching Hospitals NHS Foundation Trust | BTHE2482 - BIHR Urgent Gas Works | £15K | 3 Oct 2025 |
| Bradford Teaching Hospitals NHS Foundation Trust | BTHE2366 - Emergency Replacement Water Pumps (Horton Wing, SLH) | £60K | 19 Feb 2024 |
| Leeds and York Partnership NHS Foundation Trust, trading as North of England NHS Commercial Procurement Collaborative ("NOE CPC") | NOE CPC Minor Works, Trades & Associated Services DPS | Ceiling, not shown | 8 Dec 2021 |
| North of England Commercial Procurement Collaborative | NOE CPC Minor Works, Trades and Associated Services DPS - AWARD | Ceiling, not shown | 8 Dec 2021 |
Where Northern Mechanical Services Ltd is registered
The registered office is in Keighley (BD20), in the Bradford local authority area, Yorkshire and The Humber. Show BD20 9NL on a map.
Other trade companies in BD20
- Melissa Morton Garden & Landscape Design LtdLandscapers and gardeners
- LP Window & Door Installation LtdJoiners and carpenters
- Noah James & Co LtdProperty developers
- O&Y LtdJoiners and carpenters
- Hebden Bridge Renovations LtdProperty developers
- Dcubed Heating & Cooling Solutions LtdPlumbers and heating engineers
- Sinnette Landscapes LimitedLandscapers and gardeners
- Friday Property Holdings LtdProperty developers
What happens if Northern Mechanical 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 31 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 10839413
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 June 2017 (9 years ago)
- Registered office
- 39 Bradley Road, Silsden, Keighley, BD20 9NL
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 23 August 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 Keighley
Other active plumbing and heating companies registered in Keighley.
- Oil-Line Heating Services Limited2013
- P Johnson Plumbing & Heating Limited2025
- P.H.V. Systems Limited1995
- Paul Creighton Plumbing & Heating Ltd2016
- Pipe Dreams Heating and Plumbing Solutions Ltd2011
- Premier Gas Eco Ltd2018
- R & B Mechanical & Electrical Ltd2015
- Ryan Wilkie Plumbing & Heating Services Limited2014
All plumbing and heating companies in Keighley · All trades in Keighley · Plumbers and heating engineers across the UK
Frequently asked questions
When are Northern Mechanical Services Ltd's accounts due?
Northern Mechanical Services Ltd's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Northern Mechanical Services Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Northern Mechanical Services Ltd still trading?
Northern Mechanical 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 Northern Mechanical Services Ltd do?
Northern Mechanical Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Northern Mechanical Services Ltd?
Northern Mechanical Services Ltd was incorporated on 28 June 2017, 9 years ago.
Has Northern Mechanical Services Ltd won public sector contracts?
Yes. Northern Mechanical Services Ltd has 4 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £76K), most recently from Bradford Teaching Hospitals NHS Foundation Trust.
What is the penalty if Northern Mechanical 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 Northern Mechanical 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.