- Companies
- Specialist contractors
- Swaffham
- Comaserve CMS UK Limited
Comaserve CMS UK Limited
- Company number
- 13099573
- Incorporated
- 24 Dec 20205 years trading
- Registered office
- 24 Market Place, Swaffham, Norfolk, PE37 7QH
- Nature of business
- Other specialised construction activities n.e.c.
Comaserve CMS UK Limited is a 5-year-old private limited company registered in Swaffham, company number 13099573, one of 11 specialist construction companies in Swaffham. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £34K (+8.2%) on the year before, to £453K.
- Net assets rose in 4 of 4 year-on-year comparisons on record.
- Current assets of £647K against £194K owed within a year: 3.3 times cover.
- 2 employees on average during the year.
- 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 Dec 2025 | £453K | £470K | £647K | £194K | 2 |
| 31 Dec 2024 | £419K | £396K | £588K | £169K | 2 |
| 31 Dec 2023 | £365K | £507K | £142K | 2 | |
| 31 Dec 2022 | £281K | £471K | £190K | 2 | |
| 31 Dec 2021 | £270K | £464K | £193K | 1 |
Where Comaserve CMS UK Limited is registered
The registered office is in Swaffham (PE37), in the Breckland local authority area, East of England. Show PE37 7QH on a map.
Other trade companies in PE37
- Kris Group LimitedBuilders
- Rawh Stock LimitedMotor traders
- Codo Leisure LtdMotor traders
- E Briston Plumbing and Heating LimitedPlumbers and heating engineers
- Chimney Sweep Norfolk LtdCleaning companies
- KT Civil & Safety LtdCivil engineering
- Maple Aquatics LtdLandscapers and gardeners
- Eastern Contracts LtdElectricians
Shared registered office
90 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Comaserve CMS UK 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 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 13099573
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 December 2020 (5 years ago)
- Registered office
- 24 Market Place, Swaffham, Norfolk, PE37 7QH
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 23 December 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 Swaffham
Other active specialist construction companies registered in Swaffham.
- Comaserve Limited2016
- Dimension Brickwork Ltd2022
- Eastern Drainage Services Ltd2010
- Eichinger Equipment Ltd2011
- Fabricworx UK Ltd2025
- Humm and Son Construction Limited2019
- Keystone CMS Ltd2026
- Mesh CMS Limited2020
All specialist construction companies in Swaffham · All trades in Swaffham · Specialist contractors across the UK
Frequently asked questions
When are Comaserve CMS UK Limited's accounts due?
Comaserve CMS UK Limited's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is Comaserve CMS UK Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Comaserve CMS UK Limited still trading?
Comaserve CMS UK 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 Comaserve CMS UK Limited do?
Comaserve CMS UK Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Comaserve CMS UK Limited?
Comaserve CMS UK Limited was incorporated on 24 December 2020, 5 years ago.
What is the penalty if Comaserve CMS UK 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 Comaserve CMS UK 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.