- Companies
- Finishing trades
- Colchester
- Mack Construction Services Ltd
Mack Construction Services Ltd
- Company number
- 11551635
- Incorporated
- 4 Sep 20188 years trading
- Registered office
- 28A ST. Peters Road, Coggeshall, Colchester, CO6 1SR
- Nature of business
- Other building completion and finishing
Mack Construction Services Ltd is a 8-year-old private limited company registered in Colchester, company number 11551635, one of 146 building finishing companies in Colchester. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £13K (-53.2%) on the year before, to £11K.
- Net assets rose in 5 of 6 year-on-year comparisons on record.
- Current assets of £39K against £28K owed within a year: 1.4 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £11K | £29K | £39K | £28K | 2 |
| 30 Sep 2024 | £24K | £61K | £65K | £41K | 2 |
| 30 Sep 2023 | £21K | £30K | £35K | £15K | 2 |
| 30 Sep 2022 | £8,293 | £8,293 | £11K | £3,015 | 2 |
| 30 Sep 2021 | £3,170 | £3,878 | £1,125 | 2 | |
| 30 Sep 2020 | £3 | £1,166 | £1,163 | 2 | |
| 30 Sep 2019 | £2 | £555 | £553 | 2 |
Where Mack Construction Services Ltd is registered
The registered office is in Colchester (CO6), in the Braintree local authority area, East of England. Show CO6 1SR on a map.
Other trade companies in CO6
- RKPR Commercial Roofing LtdRoofers
- GGS Infrastructure LtdCivil engineering
- Fordham Eco Park LtdProperty developers
- PNS Architectural Glazing Specialists LtdGlaziers
- Caddytech Conversions LtdMechanics and garages
- Jeri Construction LimitedBuilders
- KHC Contracts LimitedBuilders
- Colne Valley Motor Company LimitedMotor traders
What happens if Mack 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 11551635
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 September 2018 (8 years ago)
- Registered office
- 28A ST. Peters Road, Coggeshall, Colchester, CO6 1SR
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 29 August 2026
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies in Colchester
Other active building finishing companies registered in Colchester.
- Madecube Ltd2018
- Mads Management Ltd2019
- Mae Property Services Limited2023
- Marc Samuel London Limited2020
- Mastershield Roofing & Building Services Limited2019
- Mastic Services Limited2016
- Matt Minnis Builders Limited2021
- Matthew James Property Group Ltd2018
All building finishing companies in Colchester · All trades in Colchester · Finishing trades across the UK
Frequently asked questions
When are Mack Construction Services Ltd's accounts due?
Mack Construction Services Ltd's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is Mack Construction Services Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Mack Construction Services Ltd still trading?
Mack Construction Services 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 Mack Construction Services Ltd do?
Mack Construction Services Ltd is registered under Other building completion and finishing (SIC 43390).
How old is Mack Construction Services Ltd?
Mack Construction Services Ltd was incorporated on 4 September 2018, 8 years ago.
What is the penalty if Mack 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 Mack Construction Services 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.