- Companies
- Civil engineering
- Consett
- Sonic Communications Ltd
Sonic Communications Ltd
- Company number
- 12814619
- Incorporated
- 14 Aug 20206 years trading
- Registered office
- 40 Watling Street Bungalows, Consett, DH8 6HW
- Nature of business
- Construction of utility projects for electricity and telecommunications
Sonic Communications Ltd is a 6-year-old private limited company registered in Consett, company number 12814619, one of 7 civil engineering contractors in Consett. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 £3,414 (+467.7%) on the year before, to £4,144.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £24K against £20K owed within a year: 1.2 times cover.
- 2 employees on average, up from 0 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 Aug 2025 | £4,144 | £24K | £20K | 2 | |
| 31 Aug 2024 | £730 | £6,746 | £8,494 | 0 | |
| 31 Aug 2023 | £9,518 | £15K | £10K | 2 | |
| 31 Aug 2022 | £8,822 | £16K | £14K | 3 | |
| 31 Aug 2021 | £709 | £6,354 | £15K | 3 |
Public contracts won
Sonic Communications Ltd has 3 public sector contract awards on record; the ones with their own published value total £1.1M, from 2017 to 2026. Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- The Police, Fire and Crime Commissioner for Northamptonshire1 award
- Crown Commercial Service1 award
- Leicestershire Police1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| The Police, Fire and Crime Commissioner for Northamptonshire | The Provision Of Ancillary Cabling And Other Associated Products | £165K | 21 Aug 2026 |
| Crown Commercial Service | Redacted Contract | £600K | 2 Jan 2018 |
| Leicestershire Police | Specialist Vehicle Fits | £360K | 11 Sep 2017 |
Where Sonic Communications Ltd is registered
The registered office is in Consett (DH8), in the County Durham local authority area, North East. Show DH8 6HW on a map.
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- Avana Property Solutions LimitedProperty developers
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- Kee Home Solutions LtdJoiners and carpenters
What happens if Sonic Communications 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 12814619
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 August 2020 (6 years ago)
- Registered office
- 40 Watling Street Bungalows, Consett, DH8 6HW
- Nature of business
- Construction of utility projects for electricity and telecommunications (SIC 42220)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 13 August 2026
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 Consett
Other active civil engineering contractors registered in Consett.
- 477 Management Ltd2026
- A1 Asphalt & Tarmacadam Surfacing Ltd1996
- CD Rigging Ltd2024
- DM Conny Surveyor Ltd2015
- Lam Civil Engineering Limited2024
- Reservoirs and Dams Limited2024
All civil engineering contractors in Consett · All trades in Consett · Civil engineering across the UK
Frequently asked questions
When are Sonic Communications Ltd's accounts due?
Sonic Communications Ltd's next accounts are due at Companies House by 31 May 2027 (in 231 days), covering the period to 31 August 2026.
When is Sonic Communications Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Sonic Communications Ltd still trading?
Sonic Communications 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 Sonic Communications Ltd do?
Sonic Communications Ltd is registered under Construction of utility projects for electricity and telecommunications (SIC 42220).
How old is Sonic Communications Ltd?
Sonic Communications Ltd was incorporated on 14 August 2020, 6 years ago.
Has Sonic Communications Ltd won public sector contracts?
Yes. Sonic Communications Ltd has 3 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £1.1M), most recently from The Police, Fire and Crime Commissioner for Northamptonshire.
What is the penalty if Sonic Communications 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 Sonic Communications 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.