- Companies
- Specialist contractors
- Southsea
- Joam Construction Services Ltd
Joam Construction Services Ltd
- Company number
- 08979315
- Incorporated
- 4 Apr 201412 years trading
- Registered office
- Unit F1, Cumberland Business Centre, Northumberland Road, Southsea, Hampshire, PO5 1DS
- Nature of business
- Other specialised construction activities n.e.c.
Joam Construction Services Ltd is a 12-year-old private limited company registered in Southsea, company number 08979315, one of 38 specialist construction companies in Southsea. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 £797 (+7.3%) on the year before, to £12K.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £17K against £11K owed within a year: 1.5 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 |
|---|---|---|---|---|---|
| 30 Apr 2025 | £12K | £17K | £11K | 1 | |
| 30 Apr 2024 | £11K | £15K | £11K | 1 | |
| 30 Apr 2023 | £14K | £17K | £11K | 1 | |
| 30 Apr 2022 | £17K | £18K | £9,918 | 1 | |
| 30 Apr 2021 | £15K | £16K | £9,914 | 1 | |
| 30 Apr 2020 | £12K | £22K | £19K | 1 | |
| 30 Apr 2019 | £4,506 | £7,982 | £5,868 | ||
| 30 Apr 2018 | £4,796 | £5,500 | £1,751 | ||
| 30 Apr 2017 | £3,873 | £5,154 | £2,481 | ||
| 30 Apr 2016 | £1,600 | £0 | £0 | £0 |
Where Joam Construction Services Ltd is registered
The registered office is in Southsea (PO5), in the Portsmouth local authority area, South East. Show PO5 1DS on a map.
Other trade companies in PO5
- Fixnova LtdRepair services
- Luxury Resin Floors and Media Walls LtdBuilders
- Pretty Unique Cleaning Services LtdCleaning companies
- Bay Bricks LtdProperty developers
- Blydan Holdings LimitedProperty developers
- Inside Out Developments Southampton LtdBuilders
- Hampshire Car Hire LtdMechanics and garages
- Baynes Wipers LtdMachinery repair and installation
Also registered at this address
23 other companies use the same registered office as Joam Construction Services Ltd.
- All Seasons Southern LtdGlaziers
- Aperture Windows & Doors LtdGlaziers
- At Building Construction LtdBuilders
- Bakes Construction LtdBuilders
- D L Home Improvements LtdBuilders
- D Robinson Brickwork LtdBuilders
- D W L Home Improvements LtdBuilders
- Hampshire Plastering & Spray Rendering LimitedPlasterers
- Hillrise Property Partners LtdBuilders
- Inside Out Developments Southampton LtdBuilders
- John McGhee Brickwork LtdFinishing trades
- L W Roofing (South) LtdRoofers
- Line Crew Construction LtdCivil engineering
- M Floyd Electrical LtdElectricians
- Oliver Engineering & Calibrations LimitedBuilders
- Paul Moreton Building Services LtdBuilders
- PSW Builders LtdBuilders
- R & H Carpentry LtdSpecialist contractors
- Rainscreen Systems LtdFinishing trades
- Robert Tutt & Sons LtdBuilders
- Rooftops Carpentry LtdJoiners and carpenters
- S Bowers Construction LtdFinishing trades
- Underground Power Cables LtdSpecialist contractors
What happens if Joam Construction 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 08979315
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 April 2014 (12 years ago)
- Registered office
- Unit F1, Cumberland Business Centre, Northumberland Road, Southsea, Hampshire, PO5 1DS
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 3 April 2025
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Southsea
Other active specialist construction companies registered in Southsea.
- Johnathanbuild Ltd2025
- L D Jenner Ltd2026
- M and C Plastering Ltd2014
- M Sweeting Ltd2014
- Mark Spooner Premier Paving Ltd2016
- MB Southern Ltd2024
- Monolith Resources Ltd2023
- Oakwood Fencing Ltd2019
All specialist construction companies in Southsea · All trades in Southsea · Specialist contractors across the UK
Frequently asked questions
When are Joam Construction Services Ltd's accounts due?
Joam Construction Services Ltd's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is Joam Construction Services Ltd's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Joam Construction Services Ltd still trading?
Joam Construction Services Ltd is listed as active on the Companies House register (checked 12 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 Joam Construction Services Ltd do?
Joam Construction Services Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Joam Construction Services Ltd?
Joam Construction Services Ltd was incorporated on 4 April 2014, 12 years ago.
What is the penalty if Joam Construction 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 Joam Construction Services Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.