- Companies
- Installers
- Brighton
- SMS (Southern) Limited
SMS (Southern) Limited
- Company number
- 03485678
- Incorporated
- 24 Dec 199728 years trading
- Registered office
- 4TH Floor, Park Gate 161-163 Preston Road, Brighton, BN1 6AF
- Nature of business
- Other construction installation
SMS (Southern) Limited is a 28-year-old private limited company registered in Brighton, company number 03485678, one of 49 installation companies (insulation, lifts, shutters and similar) in Brighton. Its next accounts are due at Companies House on 25 March 2027, and the CT600 for the period to 25 June 2026 is due at HMRC on 25 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 up £3,030 (+7.3%) on the year before, to £45K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £2.1M against £1.9M owed within a year: 1.1 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 |
|---|---|---|---|---|---|
| 30 Jun 2025 | £45K | £2.1M | £1.9M | 0 | |
| 30 Jun 2024 | £42K | £2.5M | £2.3M | 16 | |
| 30 Jun 2023 | £39K | £1.9M | £1.6M | 19 | |
| 30 Jun 2022 | £32K | £1.9M | £1.6M | 19 | |
| 30 Jun 2021 | £56K | £0 | £2M | £1.8M | 20 |
| 30 Jun 2020 | £51K | £205K | £2.3M | £2.1M | 22 |
| 30 Jun 2019 | £49K | £1.8M | £1.5M | ||
| 30 Jun 2018 | £51K | £2M | £2M | ||
| 30 Jun 2017 | £51K | £1.8M | £1.8M | ||
| 30 Jun 2016 | £41K | £1.3M | £1.4M |
Public contracts won
SMS (Southern) Limited has 10 public sector contract awards on record; the ones with their own published value total £1.1M, from 2017 to 2022. 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
- SE Shared Services9 awards
- West Sussex County Council1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| West Sussex County Council | WSCC DR - Arunside Primary School Boiler Upgrade - AWARD | £149K | 16 Aug 2022 |
| SE Shared Services | BHCC GW 4643 St Peters CE School - AWARD | £70K | 11 Jul 2019 |
| SE Shared Services | BHCC GW 4632 Stanford Junior School - AWARD | £92K | 13 Jun 2019 |
| SE Shared Services | BHCC GW 4629 Moulsecoomb Primary School - AWARD | £52K | 30 May 2019 |
| SE Shared Services | BHCC JF 4543 Blatchington - Award | £199K | 27 Jun 2018 |
| SE Shared Services | BHCC JF 4541 Goldstone - Award | £183K | 20 Jun 2018 |
| SE Shared Services | BHCC JF 4487 ST Lukes - Award | £50K | 4 Jul 2017 |
| SE Shared Services | BHCC JF 4477 Fairlight School - Award | £89K | 22 Jun 2017 |
| SE Shared Services | BHCC JF 4453 Hertford Heating - Award | £155K | 24 Apr 2017 |
| SE Shared Services | BHCC JF 4440 Drove Road Boiler - Award | £67K | 13 Mar 2017 |
Where SMS (Southern) Limited is registered
The registered office is in Brighton (BN1), in the Brighton and Hove local authority area, South East. Show BN1 6AF on a map.
Other trade companies in BN1
- Appliance & Home Care LtdRepair services
- Steeleagle LtdMachinery repair and installation
- C & G Energy Solutions LimitedPlumbers and heating engineers
- Ruihe Raising Property LtdProperty developers
- Davinci Building LtdSpecialist contractors
- Almore Roofing & Guttering LtdRoofers
- Neo Av LtdMachinery repair and installation
- Akoma Homes and Commercial Cleaning LtdCleaning companies
Also registered at this address
2 other companies use the same registered office as SMS (Southern) Limited.
- Servcom Services UK LimitedPlumbers and heating engineers
- Whisper Developments LimitedProperty developers
What happens if SMS (Southern) 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 25 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 26 Mar 2027 to 25 Apr 2027 | £150 |
| 1 to 3 months late | 26 Apr 2027 to 25 Jun 2027 | £375 |
| 3 to 6 months late | 26 Jun 2027 to 25 Sep 2027 | £750 |
| More than 6 months late | From 26 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 26 Jun 2027 | £200 |
| 3 months late | 25 Sep 2027 | another £200 |
| 6 months late | 25 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 25 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
- 03485678
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 December 1997 (28 years ago)
- Registered office
- 4TH Floor, Park Gate 161-163 Preston Road, Brighton, BN1 6AF
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 25 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 19 December 2025
- Charges (mortgages)
- 1 outstanding of 1 registered
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Brighton
Other active installation companies (insulation, lifts, shutters and similar) registered in Brighton.
- Sonus Acoustics Ltd2024
- Southshore Carpentry Construction Ltd2022
- Stay Warm Roof Systems Ltd2025
- Sussex Fencing Specialists Ltd2022
- Sussex Industrial Doors Ltd2026
- Taurus Building Solutions Limited2010
- Total Refurbs Ltd2022
- TRL Installations Ltd2020
All installation companies (insulation, lifts, shutters and similar) in Brighton · All trades in Brighton · Installers across the UK
Frequently asked questions
When are SMS (Southern) Limited's accounts due?
SMS (Southern) Limited's next accounts are due at Companies House by 25 March 2027 (in 163 days), covering the period to 25 June 2026.
When is SMS (Southern) Limited's CT600 due?
The CT600 for the period to 25 June 2026 is due at HMRC by 25 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 26 March 2027.
Is SMS (Southern) Limited still trading?
SMS (Southern) 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 SMS (Southern) Limited do?
SMS (Southern) Limited is registered under Other construction installation (SIC 43290).
How old is SMS (Southern) Limited?
SMS (Southern) Limited was incorporated on 24 December 1997, 28 years ago.
Has SMS (Southern) Limited won public sector contracts?
Yes. SMS (Southern) Limited has 10 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £1.1M), most recently from West Sussex County Council.
What is the penalty if SMS (Southern) 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 SMS (Southern) 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.