- Companies
- Installers
- Bristol
- Mastic Works Ltd
Mastic Works Ltd
- Company number
- 12068554
- Incorporated
- 25 Jun 20197 years trading
- Registered office
- 23 Westfield Park, Redland, Bristol, BS6 6LT
- Nature of business
- Other construction installation
Mastic Works Ltd is a 7-year-old private limited company registered in Bristol, company number 12068554, one of 245 installation companies (insulation, lifts, shutters and similar) in Bristol. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 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 down £4,482 (-67.2%) on the year before, to £2,187.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £62K against £48K owed within a year: 1.3 times cover.
- 3 employees on average during the year.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £2,187 | £4,670 | £62K | £48K | 3 |
| 30 Jun 2024 | £6,669 | £38K | £40K | 3 | |
| 30 Jun 2023 | £2,121 | £2,625 | £54K | £53K | 1 |
| 30 Jun 2022 | -£14K | £1,387 | £13K | £15K | 0 |
| 30 Jun 2021 | £3,720 | £4,463 | £24K | £17K | 0 |
| 30 Jun 2020 | -£8,064 | £1,262 | £1,401 | £5,406 | 0 |
Where Mastic Works Ltd is registered
The registered office is in Bristol (BS6), in the Bristol, City of local authority area, South West. Show BS6 6LT on a map.
Other trade companies in BS6
- Deals on Wheels 24/7 LtdMotor traders
- Toolsclean LtdCleaning companies
- Tended Gardens LtdLandscapers and gardeners
- Penha Properties LtdProperty developers
- Sandles Development Consulting LtdProperty developers
- Palimpsest House LimitedPainters and decorators
- Perfect Finishing LimitedPlasterers
- Alveston Homes Property Group LtdProperty developers
Also registered at this address
11 other companies use the same registered office as Mastic Works Ltd.
- B C Services (South West) LimitedElectricians
- Colman Consult LtdProperty developers
- Colman Developments LtdProperty developers
- Golden Hill Garage (Bristol) LimitedMechanics and garages
- Heavy Vehicle Brakes LimitedMotor traders
- Henlie Group LtdSpecialist contractors
- I & M Decorating LimitedPainters and decorators
- Maximus Rigorous LtdSpecialist contractors
- Nigel Matthew LimitedPainters and decorators
- Olaj LtdSpecialist contractors
- True Edge Fencing LtdInstallers
What happens if Mastic Works 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 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
- 12068554
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 June 2019 (7 years ago)
- Registered office
- 23 Westfield Park, Redland, Bristol, BS6 6LT
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 12 June 2026
- Charges (mortgages)
- 0 outstanding of 1 registered
- Previous names
- M4M Mastic Works Limited (until 3 Sep 2020)
M4M Mastic Limited (until 1 Jul 2019)
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 Bristol
Other active installation companies (insulation, lifts, shutters and similar) registered in Bristol.
- Matthews Stonemasonry Ltd2025
- Maximum Damp Solutions Ltd2025
- Maynard Windows Ltd2017
- Missiato Limited2015
- MLM Signs Limited2003
- Modernization Ltd2015
- MPK Conversions and Construction Limited2005
- MRF Ceilings & Partitions Ltd2017
All installation companies (insulation, lifts, shutters and similar) in Bristol · All trades in Bristol · Installers across the UK
Frequently asked questions
When are Mastic Works Ltd's accounts due?
Mastic Works Ltd's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Mastic Works Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Mastic Works Ltd still trading?
Mastic Works 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 Mastic Works Ltd do?
Mastic Works Ltd is registered under Other construction installation (SIC 43290).
How old is Mastic Works Ltd?
Mastic Works Ltd was incorporated on 25 June 2019, 7 years ago.
What is the penalty if Mastic Works 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 Mastic Works 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.