Active09417139Private limited companyWaterlooville

REACTIVE MECHANICAL SERVICES LTD

Owned by Natalie-Ann Montgomery (75–100%)

Companies HouseCompanies House

From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms

01

Summary

Generated from filed data · no estimates

REACTIVE MECHANICAL SERVICES LTD is an active private limited company (company number 09417139) incorporated on 2 February 2015, registered in Waterlooville. Its registered activity is plumbing, heat and air-conditioning installation (SIC 43220). Latest micro accounts cover the period ending 1 August 2025, showing net assets of £62k, with 0 employees on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets rose 96% on the prior period (£31k).

Peer position · net assets

By net assets it sits in the top quarter of 573 comparable companies in Portsmouth (median £4,669, upper quartile £26k).

02

Key dates

Incorporated
2 February 201511 yrs ago
Next accounts due
1 May 2027in 191 days
Confirmation statement due
16 February 2027in 117 days

Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.

03

Activity

SIC 43220
Plumbing, heat and air-conditioning installation
Accounts type
Micro Entity
Size band
MicroCompanies Act thresholds
04

Financials

2 periods on record · latest ending 1 August 2025
Net assets
£62k
+96%vs Aug 2024
Cash at bank
Not reported
Turnover
Not disclosed
Employees
0
vs Aug 2024
Net assets
£62k
Filed accounts by period, newest first
Period endNet assetsCashDebtorsCreditors <1yTurnoverProfitEmployees
1 August 2025£62k——£6,101——0
1 August 2024£31k——£6,101——0

Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing; micro-entity accounts contain no profit and loss account.

05

Filing and accounts signals

Facts from the register · no rating
  • Net assets above zeroNet assets £61,527 at 1 August 2025
  • Net assets up 10% or more on the prior period+96.3% vs prior period
  • Incorporated five or more years agoIncorporated 2 February 2015

Neutral facts read from the register and filed accounts, each with its evidence. They are not a rating, a prediction or advice, and may be incomplete or out of date. How each signal is derived.

06

Ownership and control

1 active
  • Ms Natalie-Ann Montgomery
    Individual · since 2 February 2017
    • owns 75–100% of shares
    • holds 75–100% of voting rights
    • can appoint or remove directors

Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents.

07

Timeline

Newest first
  1. Next accounts duein 191 days
  2. Confirmation statement duein 117 days
  3. Accounts period endNet assets £62k · micro accounts
  4. Accounts period endNet assets £31k · micro accounts
  5. Incorporated
08

Similar companies in Portsmouth

Same activity (plumbing, heat and air-conditioning installation), closest in incorporation date
09

Reminders for REACTIVE MECHANICAL SERVICES LTD

Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.

Source: Companies House register, snapshot 2026-08-31; accounts from the Companies House accounts data product. Open Government Licence v3.0. View on Companies House. Methodology · About · Markdown.