- Companies
- Electricians
- Bishop Auckland
- Tomlinson Longstaff Limited
Tomlinson Longstaff Limited
- Company number
- 01206464
- Incorporated
- 7 Apr 197551 years trading
- Registered office
- Chapel Street, West Auckland, Bishop Auckland, DL14 9HP
- Nature of business
- Electrical installation
Tomlinson Longstaff Limited is a 51-year-old private limited company registered in Bishop Auckland, company number 01206464, one of 37 electrical contractors in Bishop Auckland. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £41K (-21.5%) on the year before, to £151K.
- Net assets rose in 4 of 8 year-on-year comparisons on record.
- Current assets of £146K against £76K owed within a year: 1.9 times cover.
- 8 employees on average, down from 13 the year before.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £151K | £83K | £146K | £76K | 8 |
| 31 May 2024 | £192K | £53K | £214K | £131K | 13 |
| 31 May 2023 | £235K | £121K | £287K | £177K | 15 |
| 31 May 2022 | £230K | £85K | £343K | £213K | 20 |
| 31 May 2021 | £259K | £236K | £394K | £225K | 20 |
| 31 May 2020 | £246K | £347K | £532K | £301K | 25 |
| 31 May 2019 | £233K | £137K | £416K | £252K | 15 |
| 31 May 2018 | £226K | £131K | £523K | £354K | 16 |
| 31 May 2017 | £240K | £141K | £468K | £308K | 16 |
Public contracts won
Tomlinson Longstaff Limited has one public sector contract award on record (2018). Source: Contracts Finder and Find a Tender award notices. For all 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.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Durham County Council | Framework Agreement for Electrical Contractors for Minor Works for Durham County Council | Ceiling, not shown | 14 May 2018 |
Where Tomlinson Longstaff Limited is registered
The registered office is in Bishop Auckland (DL14), in the County Durham local authority area, North East. Show DL14 9HP on a map.
Other trade companies in DL14
- FJ Maintenance Ne LtdSpecialist contractors
- MTS Electrics LtdElectricians
- TMRC LtdSpecialist contractors
- Bishop Car Wash LtdCleaning companies
- Victory Roofing LtdRoofers
- Rend-Pro North East LimitedProperty developers
- Vickers Detailing LimitedCleaning companies
- Orchard Tree Care Services LtdLandscapers and gardeners
What happens if Tomlinson Longstaff Limited 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 01206464
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 April 1975 (51 years ago)
- Registered office
- Chapel Street, West Auckland, Bishop Auckland, DL14 9HP
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 8 January 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Bishop Auckland
Other active electrical contractors registered in Bishop Auckland.
- TW Electrical Ltd2026
- United Electrical Solutions Ltd2020
- A & P Mechanical Ltd2025
- A Dennis Contracting Limited2021
- A Patterson Installation Limited2006
- Aa Electrical & Security Systems Limited2024
- Ag Electrical Solutions Ne Ltd2026
- Apd Electrotech Ltd2012
All electrical contractors in Bishop Auckland · All trades in Bishop Auckland · Electricians across the UK
Frequently asked questions
When are Tomlinson Longstaff Limited's accounts due?
Tomlinson Longstaff Limited's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Tomlinson Longstaff Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Tomlinson Longstaff Limited still trading?
Tomlinson Longstaff Limited 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 Tomlinson Longstaff Limited do?
Tomlinson Longstaff Limited is registered under Electrical installation (SIC 43210).
How old is Tomlinson Longstaff Limited?
Tomlinson Longstaff Limited was incorporated on 7 April 1975, 51 years ago.
Has Tomlinson Longstaff Limited won public sector contracts?
Yes. Tomlinson Longstaff Limited has one contract award from public bodies on Contracts Finder and Find a Tender, most recently from Durham County Council.
What is the penalty if Tomlinson Longstaff Limited 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 Tomlinson Longstaff Limited 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.