Gas Safe registered engineers for homes and landlords across North West London. Servicing, repairs and new installs.
Servicing plans shaped around your boiler, so you are never left without heating or hot water.
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Gas safety records, servicing and an emergency call-out in one yearly package.
See landlord packages
What we do
From the annual service to a full replacement, one qualified team handles it start to finish.
Annual checks for combi, system and conventional boilers of any make. We will repair older models too, as long as parts exist.
There is never a good time for a breakdown. Our vans carry common parts so we can get you running again quickly.
Energy efficient condensing boilers sized to your home. We talk you through the options and recommend what fits.
Power flushing, radiator balancing, thermostatic valves and new radiators. Small fixes that make every room warmer.
For landlords
Keeping rentals compliant is your legal duty. We keep on top of the regulations, do the work and issue the paperwork.
Packages scale from a single flat to a full lettings portfolio.
Book a visitCall or book online. Tell us what is happening and we will give you a time.
When we said we would. Shoes covered, dust sheets down.
A clear diagnosis and a fair price, agreed before any work starts.
Service records and certificates sent over, ready for your files.
WJEN is a small team of Gas Safe registered engineers based in North West London. Most of our work comes from repeat customers and referrals.
Covering North West London
We cover Finchley, Hampstead, Muswell Hill, Highgate, Golders Green, Hendon, Crouch End, East Finchley, Belsize Park, Kentish Town and Hampstead Garden Suburb.
What we do, how a visit works and who turns up at your door.
Reviews
“They arrived exactly when they said they would, and left the kitchen cleaner than they found it.”
“They look after gas safety across our whole lettings portfolio. Reliable, fairly priced and honest.”
“They worked around our patient hours with barely any disruption, and the surgery was spotless afterwards.”
“Our new house needed the whole heating system replaced mid-winter. Quick, courteous and very fairly priced.”
“Four years of repairs, boiler swaps and safety certificates. The same high standard every single time.”
A few tips we share on almost every visit.
88%+
Modern condensing boilers turn more than 88% of their fuel into heat. An old one could be costing you hundreds a year.
1°C
Turning your room thermostat down a single degree is one of the cheapest savings you can make.
Thermostatic valves let you heat the rooms you use and turn down the ones you do not.
An audible, battery operated alarm near every gas appliance. It costs little and could save a life.
An insulation jacket on the hot water cylinder and lagged pipework stop heat leaking away before it reaches you.
Straight answers about servicing, safety and call-outs. For anything else, just call.
Call 020 7946 0721Once a year. Most manufacturers need an annual service by a Gas Safe registered engineer to keep the warranty valid. We service combi, system and conventional boilers of any make, and send you the service record afterwards.
Get every gas appliance, fitting and flue checked by a Gas Safe registered engineer every 12 months, and give tenants a copy of the gas safety record within 28 days (new tenants before they move in). Our landlord package covers the annual check and record, a service of every gas appliance and one emergency call-out a year, for a single flat or a whole portfolio.
Yes. Call us on 020 7946 0721 for a breakdown, a leak, or no heating or hot water, and we will get to you as quickly as we can, with common parts on the van so we can often fix it there and then. If you smell gas, call 0800 111 999 first.
Call the National Gas Emergency Service free on 0800 111 999, at any time, then open doors and windows, turn off the gas at the meter if you can, and do not use switches, electrics or naked flames. Once the gas network has made it safe, we can find and repair the fault and check your appliances.
Usually one to two days for a straight swap of a combi boiler; moving the boiler or changing the type of system takes longer. We visit first, recommend the right boiler for your home and confirm the timing in a written quote.
A power flush pumps cleaning chemicals through your heating system to clear out sludge and rust. It is usually worth it if radiators have cold spots, the boiler is noisy, or a new boiler is going onto an old system. We check your system first and only recommend a flush if it will make a real difference.
Yes. Every engineer who works on gas is Gas Safe registered, and you can check our registration on the Gas Safe Register website. We carry our Gas Safe ID cards on every visit, so you can check them at the door.
We cover North West London, including Finchley, East Finchley, Hampstead, Hampstead Garden Suburb, Belsize Park, Highgate, Muswell Hill, Crouch End, Kentish Town, Golders Green and Hendon. Not sure if you are in our area? Call 020 7946 0721 and we will tell you straight away.
Call the National Gas Emergency Service free, 24 hours a day. On a mobile, step outside before you call.
0800 111 999For any other heating or plumbing emergency, call WJEN on 020 7946 0721.
Tell us what is going on and we will call you back to arrange a time.
