- Companies
- Specialist contractors
- Falkirk
- Airtight Testing Scotland Limited
Airtight Testing Scotland Limited
- Company number
- SC382534
- Incorporated
- 26 Jul 201016 years trading
- Registered office
- 23 Neilson Street, Falkirk, FK1 5AQ
- Nature of business
- Other specialised construction activities n.e.c.
Airtight Testing Scotland Limited is a 16-year-old private limited company registered in Falkirk, company number SC382534, one of 24 specialist construction companies in Falkirk. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 £24K (+4%) on the year before, to £611K.
- Net assets rose in 9 of 9 year-on-year comparisons on record.
- Current assets of £201K against £65K owed within a year: 3.1 times cover.
- 2 employees on average, down from 3 the year before.
- 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 |
|---|---|---|---|---|---|
| 31 Jul 2025 | £611K | £98K | £201K | £65K | 2 |
| 31 Jul 2024 | £588K | £69K | £624K | £58K | 3 |
| 31 Jul 2023 | £489K | £484K | £546K | £58K | 3 |
| 31 Jul 2022 | £378K | £392K | £414K | £38K | 3 |
| 31 Jul 2021 | £308K | £294K | £357K | £52K | 2 |
| 31 Jul 2020 | £164K | £193K | £193K | £32K | 0 |
| 31 Jul 2019 | £120K | £139K | £22K | ||
| 31 Jul 2018 | £87K | £120K | £37K | ||
| 31 Jul 2017 | £54K | £79K | £29K | ||
| 31 Jul 2016 | £45K | £66K | £73K | £32K |
Where Airtight Testing Scotland Limited is registered
The registered office is in Falkirk (FK1), in the Falkirk local authority area, Scotland. Show FK1 5AQ on a map.
Other trade companies in FK1
- Alphabridge-Global LtdCivil engineering
- Maverick Telecoms LtdCivil engineering
- D10 Construction LtdFinishing trades
- Crystal Clear Falkirk LimitedCleaning companies
- Fullard Enterprises LtdMachinery repair and installation
- Stuart Docherty LimitedMotor traders
- Nationalhighwaysuk LtdCivil engineering
- Spotless Home Cleans LtdCleaning companies
Also registered at this address
1 other company uses the same registered office as Airtight Testing Scotland Limited.
- Agsturrock Consulting LtdSpecialist contractors
What happens if Airtight Testing Scotland 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 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- SC382534
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 July 2010 (16 years ago)
- Registered office
- 23 Neilson Street, Falkirk, FK1 5AQ
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 28 February 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 Falkirk
Other active specialist construction companies registered in Falkirk.
- Braes Decorating Services Ltd2025
- Cain Irvin Rope Access Ltd2026
- Callum Lennon Ltd2026
- Carbonpadel Ltd2019
- Cullen Consultancy (Scotland) Limited2020
- D.A. Gilmour Limited1999
- Drummond05 Engineering Limited2025
- Geobar Construction Ltd.2021
All specialist construction companies in Falkirk · All trades in Falkirk · Specialist contractors across the UK
Frequently asked questions
When are Airtight Testing Scotland Limited's accounts due?
Airtight Testing Scotland Limited's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is Airtight Testing Scotland Limited's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Airtight Testing Scotland Limited still trading?
Airtight Testing Scotland 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 Airtight Testing Scotland Limited do?
Airtight Testing Scotland Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Airtight Testing Scotland Limited?
Airtight Testing Scotland Limited was incorporated on 26 July 2010, 16 years ago.
What is the penalty if Airtight Testing Scotland 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 Airtight Testing Scotland 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.