London · Gas Safe registered
Gas interlock system installation in Bexley, Sidcup & Dartford
We supply, install, wire and certify commercial gas interlock systems across Bexley, Sidcup & Dartford — Bexley, Bexleyheath, Sidcup, Dartford and every postcode below. Panels, solenoid valves and air pressure switches are carried in stock, so most kitchens are back cooking the same day.
- Covering 18 postcode districts in Bexley, Sidcup & Dartford
- Interlock panel, valve and sensor stock on the van
- BS 6173 / IGEM/UP/19 certificate issued on completion
System architecture
Interlock installation in Bexley, Sidcup & Dartford
Retail-park restaurants, care homes and distribution-centre canteens along the A2 corridor. Whatever the site, the installation follows the same principle: the gas supply to your cooking appliances is proved and released only when the extract and make-up air systems are running correctly.
Our engineers survey the kitchen, size the solenoid valve to the existing gas pipework (commonly 28mm, 35mm or a flanged valve on larger ranges), fit the interlock control panel where staff can reach the reset and emergency stop, and wire the airflow proving devices back to the panel. The system is then tested, commissioned and certificated.
- Site survey and gas supply assessment
- Interlock control panel supplied and fitted
- Normally closed gas solenoid safety shut-off valve
- Air pressure / airflow proving switches and current sensors
- Emergency stop buttons at kitchen exits
- Commissioning, gas soundness test and certification
Postcodes we cover in Bexley, Sidcup & Dartford
Every postcode district listed here is covered for installation, servicing and emergency repair: DA1, DA2, DA3, DA4, DA5, DA6, DA7, DA8, DA9, DA10, DA11, DA12, DA13, DA14, DA15, DA16, DA17, DA18.
| Postcode districts | Towns & areas |
|---|---|
| DA1, DA2, DA3, DA4, DA5, DA6, DA7, DA8, DA9, DA10, DA11, DA12, DA13, DA14, DA15, DA16, DA17, DA18 | Bexley, Bexleyheath, Sidcup, Dartford, Erith, Welling, Greenhithe, Gravesend |
Response times and emergency call-out
- Planned installations booked to suit trading hours, including nights and weekends
- Emergency attendance for kitchens with no gas — same day wherever possible
- Replacement panels, valves, pressure switches and thermocouples carried in stock
- Out-of-hours access, permits and RAMS handled for managed sites
Compliance and certification
Installations are carried out to BS 6173 (installation of gas appliances in catering establishments) and IGEM/UP/19 (design and application of interlock devices), by engineers holding the relevant commercial catering and Gas Safe qualifications.
You receive a commissioning record and interlock test certificate for your gas safety file, which is what an environmental health officer, insurer or landlord will ask to see.
Frequently asked questions
Do you cover my postcode in Bexley, Sidcup & Dartford?
Yes — we cover DA1, DA2, DA3, DA4, DA5, DA6, DA7, DA8, DA9, DA10, DA11, DA12, DA13, DA14, DA15, DA16, DA17, DA18 and the surrounding districts. If your postcode is on the edge of the area, call us and we will confirm the same day.
How long does a gas interlock installation take in Bexley, Sidcup & Dartford?
A typical single-kitchen installation is completed in one working day. Larger kitchens, multiple valves or new ventilation controls can take two days, and we can work overnight to avoid closing the kitchen.
Is a gas interlock a legal requirement?
Where a commercial kitchen has mechanical ventilation and gas appliances, an interlock is required in practice by BS 6173 and expected by Gas Safe engineers, environmental health and insurers. Without one, a gas engineer can class the installation as at risk.
Can you install on an existing extraction system?
Yes. In most cases the existing extract and make-up air fans are retained and we add proving devices, the interlock panel and the gas solenoid valve. If airflow is inadequate we will tell you what needs putting right.
Related guides
Interlock Installation Guide
Kit selection, valve sizing, wiring and commissioning explained.
Installation Cost
What a gas interlock costs to supply, fit and certify.
Regulations & Law
BS 6173, IGEM/UP/19 and whether you need an interlock.
Emergency Engineer
Kitchen off gas? Same-day interlock attendance.
Installation in Central London
Covering EC1, EC2, EC3, EC4 and nearby postcodes.
Installation in East London
Covering E1, E2, E3, E4 and nearby postcodes.
Installation in North London
Covering N1, N2, N3, N4 and nearby postcodes.
Installation in North West London
Covering NW1, NW2, NW3, NW4 and nearby postcodes.
Parts in stock — ready to fit
Held in UK stock and carried on our vans, so most jobs are fixed in one visit.
Replacement gas interlock systems
Merlin, Medem, Intelligas, S&S Northern
In stock today
Air pressure switches
Fan & gas proving pressure switches
In stock today
Gas solenoid valves
Normally closed safety shut-off valves
In stock today
Quick release gas catering hoses
Commercial ranges, bays & mobile catering
In stock today
Super universal thermocouples
Fits most commercial gas appliances
In stock today
Need a part fitted?
Same-day engineer dispatch with these parts on the van.
Gas Safe Registered
Commercial catering & plant
24/7 UK Response
Same-day emergency dispatch
Vetted Engineers
DBS checked for schools & care
Transparent Pricing
Fixed callout, quoted parts
Areas we cover
Gas interlock installation, servicing and emergency repair across 34 areas of London, Surrey and the M25 towns — 372 postcode districts in total.
London
Central London →
EC1, EC2, EC3, EC4, WC1, WC2 +5 more
East London →
E1, E2, E3, E4, E5, E6 +14 more
North London →
N1, N2, N3, N4, N5, N6 +16 more
North West London →
NW1, NW2, NW3, NW4, NW5, NW6 +5 more
South East London →
SE1, SE2, SE3, SE4, SE5, SE6 +22 more
South West London →
SW1, SW2, SW3, SW4, SW5, SW6 +14 more
West London →
W1, W2, W3, W4, W5, W6 +8 more
Bromley & Beckenham →
BR1, BR2, BR3, BR4, BR5, BR6 +2 more
Croydon →
CR0, CR1, CR2, CR3, CR4, CR5 +4 more
Harrow & Wembley →
HA0, HA1, HA2, HA3, HA4, HA5 +4 more
Ilford, Romford & East Boroughs →
IG1, IG2, IG3, IG4, IG5, IG6 +25 more
Sutton & Morden →
SM1, SM2, SM3, SM4, SM5, SM6 +1 more
Hounslow, Twickenham & Staines →
TW1, TW2, TW3, TW4, TW5, TW6 +14 more
Uxbridge, Hayes & Southall →
UB1, UB2, UB3, UB4, UB5, UB6 +5 more
Enfield & Barnet →
EN1, EN2, EN3, EN4, EN5, EN6 +5 more
Bexley, Sidcup & Dartford →
DA1, DA2, DA3, DA4, DA5, DA6 +12 more
Surrey
Kingston upon Thames →
KT1, KT2, KT3, KT4, KT5, KT6 +1 more
Epsom & Ewell →
KT17, KT18, KT19, KT20, KT21
Esher, Walton & Weybridge →
KT7, KT8, KT10, KT11, KT12, KT13 +3 more
Leatherhead & Dorking →
KT22, KT23, KT24, RH3, RH4, RH5
Guildford →
GU1, GU2, GU3, GU4, GU5
Woking →
GU21, GU22, GU23, GU24
Camberley & Farnborough →
GU14, GU15, GU16, GU17, GU18, GU19 +3 more
Farnham & Godalming →
GU6, GU7, GU8, GU9, GU10, GU11 +4 more
Redhill & Reigate →
RH1, RH2, RH6, RH7, RH8, RH9 +2 more
Runnymede, Egham & Virginia Water →
TW20, GU25, KT16
M25 & Home Counties
Watford & Rickmansworth →
WD3, WD4, WD5, WD6, WD7, WD17 +5 more
St Albans & Hatfield →
AL1, AL2, AL3, AL4, AL5, AL6 +4 more
Hemel Hempstead & Amersham →
HP1, HP2, HP3, HP4, HP5, HP6 +5 more
Slough, Windsor & Maidenhead →
SL0, SL1, SL2, SL3, SL4, SL5 +4 more
Brentwood, Epping & Harlow →
CM1, CM2, CM11, CM12, CM13, CM14 +6 more
Sevenoaks & Swanley →
TN13, TN14, TN15, TN16, BR8
Grays, Thurrock & Lakeside →
RM15, RM16, RM17, RM18, RM19, RM20 +1 more
Orpington & the A20 Corridor →
BR5, BR6, BR7, DA3, DA4, DA13 +2 more