
Banbury · Gas Safe · OFTEC
Complete plumbing, heating and renovation projects, delivered without compromise.
From full-scale bathroom and home renovations to complex plumbing and heating systems, LJ Plumbing & Heating manages every stage, supplies every required trade and delivers to exacting standards, in front of and behind the walls.
07540 495667Gas Safe registered
OFTEC registered
Complete project delivery
Required trades supplied and coordinated
Residential, education and estate work
The LJ standard
Built around the project, not just the plumbing.
Based at 2 Somerville Court, Banbury Business Park, Adderbury, Oxfordshire OX17 3SN.
Built around the project
The best results come from treating every element as part of one brief. Planning, plumbing, heating and the required finishing trades sit together.
Quality in front of and behind the walls
Premium finish is not cosmetic. Pipework, preparation, system design and testing meet the same standard as the finished room.
One accountable company
LJ supplies and coordinates what the project requires. Clients should not have to source or manage separate trades.





Areas we cover
Based in Adderbury. Working across the surrounding counties.
The pin is the office at Banbury Business Park. The circle is the usual working area from that base.
2 Somerville Court, Banbury Business Park, Adderbury, Oxfordshire OX17 3SN
Unsure whether we cover your property? Call 07540 495667.
What we do
The services that sit under a complete project.
How we work
One team. Every trade. One uncompromising standard.
Built around the project, not just the plumbing. Planning, plumbing, heating and the required finishing trades sit with one accountable company. From the work hidden behind the walls to the final fitting, every stage is delivered with the same attention to detail.
Consultation and scope
We walk the property, agree the brief and set out what the project actually requires.
Design and technical planning
Heat loss, pipe runs, layouts and the drawing the team works from. Before anyone opens a wall.
Coordinated delivery
LJ supplies and coordinates the required trades. One company remains accountable through the programme.
Testing, finishing and handover
Commissioning, the last fitting and a finished result that is ready to use.
Premier Projects
Premier Projects
A closer look at the properties, challenges and technical details behind some of LJ Plumbing & Heating’s most significant work.
Schools & Estates
Planned works for schools and education estates
From washroom and bathroom refurbishments to plumbing, heating and planned maintenance, LJ Plumbing & Heating supports schools with programmed work, clear communication and dependable delivery.
Explore Schools & Estates
Client words
What clients say after handover.
“We couldn’t be more pleased with our transformed bathroom. The level of professionalism and attention to detail from the whole team is hugely appreciated. Communication was excellent throughout the process and we are delighted with the end result.”
“The team have always been very professional and quality-driven. They managed the plumbing for our extension and renovation, communicating clearly and delivering to an excellent standard. Always respectful and friendly.”
“My mother is 90 and her boiler was condemned, so she had no heating or hot water. The same engineers came each day, which was very reassuring for her. Thorough, tidy and very pleasant.”
“Thanks for the bathrooms, they look grand. We were super happy with every step of the process.”
“We are delighted with the work the team did, particularly Toby, whose attention to detail is exemplary.”
“The floor heating is working perfectly. We can’t quite believe the house is for us to live in. We’re so grateful for all the careful work.”
“Bathroom looks fab. Thank you to you and all your men on this job.”
“As ever, the service was excellent. Thanks so much for fitting this in so quickly.”
SMH Gas Specialist
Continuity for SMH customers
Following the acquisition of SMH Gas Specialist, existing SMH customers can be confident that the service they know will continue. Existing guarantees remain honoured, familiar faces remain involved and Mark will continue working with the business.
The jobs, as they go on.
Live from @lj_plumbheat. Finished rooms and the work behind the walls, as the jobs go on.
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Questions
Straight answers.
How do I start a project conversation?
Call or send a project brief. Tell us the property, the scope and the standard you expect. We will come back with a clear next step.
Are you Gas Safe and OFTEC?
Yes. Gas Safe 656970. OFTEC 500360. Gas and oil, registered and documented.
I used SMH Gas Specialist. Are you still there?
Yes. LJ Plumbing & Heating has acquired SMH Gas Specialist. Existing guarantees remain honoured, familiar faces remain involved, and Mark continues with the business. There is a dedicated page for SMH customers.
What areas do you cover?
The company is based in Adderbury, just south of Banbury. The map on the home page shows the usual working area. Unsure whether your property sits inside it? Call.
Do you supply the other trades?
LJ supplies and coordinates the trades a project requires, and remains accountable through to handover. Ask us what that includes on your brief.
Do you work with schools?
Yes. Washroom refurbishments, plumbing, heating and planned maintenance for schools and education estates, programmed around term time and holidays.
Planning a substantial project?
Speak to LJ Plumbing & Heating about the property, the scope and the standard you expect.







