- Companies
- Civil engineering
- Blackburn
- A 1 Consulting Engineers Limited
A 1 Consulting Engineers Limited
- Company number
- 05955441
- Incorporated
- 4 Oct 200620 years trading
- Registered office
- c/o C T Jones & C0, Suite 27 Barnfield House, Sandpits Lane, Accrington Road, Blackburn, Lancs, BB1 3NY
- Nature of business
- Construction of other civil engineering projects n.e.c.
A 1 Consulting Engineers Limited is a 20-year-old private limited company registered in Blackburn, company number 05955441, one of 31 civil engineering contractors in Blackburn. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 £7,626 (-29.1%) on the year before, to £19K.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £26K against £8,746 owed within a year: 3.0 times cover.
- 1 employee on average during the year.
- 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 Oct 2025 | £19K | £26K | £8,746 | 1 | |
| 31 Oct 2024 | £26K | £36K | £11K | 1 | |
| 31 Oct 2023 | £12K | £13K | £2,565 | 1 | |
| 31 Oct 2022 | £5,400 | £3,126 | £420 | 1 | |
| 31 Oct 2021 | £6,409 | £4,430 | £715 | 1 | |
| 31 Oct 2020 | £6,409 | £4,430 | £715 | 1 | |
| 31 Oct 2019 | £34K | £40K | £9,613 | 1 | |
| 31 Oct 2018 | £42K | £47K | £9,822 | ||
| 31 Oct 2017 | £43K | £46K | £9,593 | ||
| 31 Oct 2016 | £39K | £48K | £9,565 |
Where A 1 Consulting Engineers Limited is registered
The registered office is in Blackburn (BB1), in the Blackburn with Darwen local authority area, North West. Show BB1 3NY on a map.
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Also registered at this address
24 other companies use the same registered office as A 1 Consulting Engineers Limited.
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- CJ Hyde LtdFinishing trades
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- Ellis Construction Company(Swinton)LimitedBuilders
- KF6 LimitedMotor traders
- Mill Street MOT Centre LimitedMechanics and garages
- N R Plastering LimitedPlasterers
- Noteacre LimitedProperty developers
- NW Fencing LtdInstallers
- Pennine Automotive LtdMotor traders
- Piper Horseboxes LimitedMotor traders
- PW Motors Autos and Logistics LimitedMechanics and garages
- Raptor Rainwater Systems LtdPainters and decorators
- RMS Recovery LtdMechanics and garages
- Roberts and Sumner (Upholstery) LimitedRepair services
- S P McCullagh LimitedRepair services
- Shaun Devine LimitedBuilders
- Simply Damp Proofing LimitedPlasterers
- Veritas Electrical LimitedElectricians
What happens if A 1 Consulting Engineers 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 31 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 05955441
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 October 2006 (20 years ago)
- Registered office
- c/o C T Jones & C0, Suite 27 Barnfield House, Sandpits Lane, Accrington Road, Blackburn, Lancs, BB1 3NY
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 9 November 2025
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Blackburn
Other active civil engineering contractors registered in Blackburn.
- A1Civils Limited2014
- Afa Civil Limited2025
- Afa Telecoms Limited2025
- Ajw Civils Ltd2024
- Aspin & Coonan Limited2002
- Barton Contractors (NW) Ltd2008
- BGR Surfacing Ltd2017
- Chris Catterall Ltd2014
All civil engineering contractors in Blackburn · All trades in Blackburn · Civil engineering across the UK
Frequently asked questions
When are A 1 Consulting Engineers Limited's accounts due?
A 1 Consulting Engineers Limited's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is A 1 Consulting Engineers Limited's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is A 1 Consulting Engineers Limited still trading?
A 1 Consulting Engineers 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 A 1 Consulting Engineers Limited do?
A 1 Consulting Engineers Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is A 1 Consulting Engineers Limited?
A 1 Consulting Engineers Limited was incorporated on 4 October 2006, 20 years ago.
What is the penalty if A 1 Consulting Engineers 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 A 1 Consulting Engineers 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.