- Companies
- Specialist contractors
- Sidcup
- GMT Restorations & Conservation Ltd
GMT Restorations & Conservation Ltd
- Company number
- 09491073
- Incorporated
- 16 Mar 201511 years trading
- Registered office
- 175 North Cray Road, Sidcup, Kent, DA14 5LT
- Nature of business
- Other specialised construction activities n.e.c.
GMT Restorations & Conservation Ltd is a 11-year-old private limited company registered in Sidcup, company number 09491073, one of 92 specialist construction companies in Sidcup. Companies House shows its accounts as overdue: they were due on 31 December 2025.
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 £124K (-47.3%) on the year before, to £138K.
- Net assets rose in 6 of 8 year-on-year comparisons on record.
- Current assets of £238K against £97K owed within a year: 2.5 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 9 years, 2016 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2024 | £138K | £238K | £97K | 2 | |
| 31 Mar 2023 | £261K | £383K | £119K | 2 | |
| 31 Mar 2022 | £287K | £398K | £112K | 2 | |
| 31 Mar 2021 | £188K | £277K | £90K | 2 | |
| 31 Mar 2020 | £88K | £121K | £34K | 2 | |
| 31 Mar 2019 | £65K | £151K | £87K | 2 | |
| 31 Mar 2018 | £58K | £88K | £32K | ||
| 31 Mar 2017 | £10K | £25K | £17K | ||
| 31 Mar 2016 | £2,187 | £3,573 | £94K | £95K |
Where GMT Restorations & Conservation Ltd is registered
The registered office is in Sidcup (DA14), in the Bexley local authority area, London. Show DA14 5LT on a map.
Other trade companies in DA14
- Evlor LtdElectricians
- Pfe Services LimitedElectricians
- CJM Property Services LimitedFinishing trades
- Top Local Trader LtdBuilders
- Bassett Electrical Group LimitedElectricians
- Flatline Flooring LtdFloor and wall tilers
- LDT Service's LimitedScaffolders
- Old Maidstone Road Hand Car Wash LtdMechanics and garages
What happens if GMT Restorations & Conservation Ltd files late
If the accounts reach Companies House today, the late filing penalty is £1,500 (£3,000 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2026 to 31 Jan 2026 | £150 |
| 1 to 3 months late | 1 Feb 2026 to 31 Mar 2026 | £375 |
| 3 to 6 months late | 1 Apr 2026 to 30 Jun 2026 | £750 |
| More than 6 months late | From 1 Jul 2026 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2026 | £200 |
| 3 months late | 30 Jun 2026 | another £200 |
| 6 months late | 30 Sep 2026 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2027 | 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
- 09491073
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 16 March 2015 (11 years ago)
- Registered office
- 175 North Cray Road, Sidcup, Kent, DA14 5LT
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2024
- Last confirmation statement
- 16 March 2026
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 Sidcup
Other active specialist construction companies registered in Sidcup.
- Go Direct Group Limited2007
- Greenwood Mobility and Maintenance Services Limited2012
- Gurs Ductwork Services Limited2002
- Guthrie Construction Services Ltd2025
- Haleslocks Limited2018
- Higham Vision Limited2011
- Holson Maintenance Services Limited2018
- Hove Highway Solutions Limited2019
All specialist construction companies in Sidcup · All trades in Sidcup · Specialist contractors across the UK
Frequently asked questions
When are GMT Restorations & Conservation Ltd's accounts due?
GMT Restorations & Conservation Ltd's accounts were due at Companies House on 31 December 2025 and the register shows them as overdue.
When is GMT Restorations & Conservation Ltd's CT600 due?
The CT600 for the period to 31 March 2025 is due at HMRC by 31 March 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2026.
Is GMT Restorations & Conservation Ltd still trading?
GMT Restorations & Conservation Ltd is listed as active on the Companies House register (checked 13 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 GMT Restorations & Conservation Ltd do?
GMT Restorations & Conservation Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is GMT Restorations & Conservation Ltd?
GMT Restorations & Conservation Ltd was incorporated on 16 March 2015, 11 years ago.
What is the penalty if GMT Restorations & Conservation 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 GMT Restorations & Conservation Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.