Warm homes and plumbing that simply works
From a new boiler to a burst pipe at 7am, LJS keeps Stevenage homes warm, safe and running. Qualified, Gas Safe standard work with clear pricing and no mess left behind.
Fast local response
Often with you within a couple of hours
On time, as promised
We turn up when we say we will
Gas Safe standards
Safe, compliant work every time
Boiler Installation & Repair
New boiler installations, straight swaps and reliable repairs. We size the system correctly, fit it cleanly and leave your heating running better than before.
- Combi, system and conventional boilers
- Like for like swaps and full upgrades
- Breakdown diagnosis and repair
- Manufacturer backed warranties
Central Heating & Radiators
Full central heating installs, radiator upgrades, thermostatic controls and power flushing to clear sludge and restore even, efficient heat.
- Full system design and installation
- Radiator upgrades and relocations
- Power flushing and system cleanse
- Smart thermostats and zoned controls
Emergency Plumbing
Leaks, bursts, blockages and loss of heating. We aim to be with you fast, find the cause and fix it properly, not just patch it over.
- Fast local response
- Leak detection and repair
- Burst pipes and blockages
- Tidy, permanent fixes
Hot Water & Cylinders
Unvented cylinders, hot water systems, instant hot taps and tap replacements. Strong flow and hot water on demand throughout the home.
- Unvented cylinder installation
- Instant hot water taps
- Tap and valve replacement
- Pressure and flow improvements
The reliable choice homeowners come back to
No call centres, no subcontracted strangers and no vanishing acts. Just a qualified local tradesperson who does what they say and finishes what they start.
A qualified plumber and heating engineer with over a decade of hands on experience across every kind of home.
Simple, clear and stress free
From your first message to the final sign off, you always know what is happening and what happens next.
Get in touch
Call, message or send a few details. We talk through what you need and book a convenient time.
Survey & quote
We assess the job properly and give you a clear, itemised quote with no surprises.
The work
We arrive on time, protect your home and carry out the work cleanly to a high standard.
Signed off
We test everything, walk you through it and leave the space tidy. Aftercare is a message away.
Trusted across Stevenage and beyond
The same feedback comes up again and again: on time, honest and a genuinely tidy, high quality finish.
4.9 / 5
from 47+ verified reviews
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Proudly serving Stevenage & Hertfordshire
Based in Stevenage and covering the towns and villages around it. If you are local, there is a good chance we already work on your street.
Not sure if we cover your area? Call 07925 532675 and just ask.
Questions, answered
Straight answers to the things Stevenage homeowners ask us most. Cannot see yours? Send a message and we will happily help.
Boiler trouble or a leak? Let us sort it
Call or message for a fast, honest response. We will tell you what is wrong, what it costs and get your home back to normal.
4.9Gas Safe standards