Reactive Heating Engineer

Keystone London Group Limited; Greater London; Hybrid; GBP 35,000 - 48,000; Full time

Benefits offered by this job

Company vehicle

Job summary

Keystone London seeks an experienced Heating / Plumbing Installation Engineer to join our growing team in London. You’ll handle boiler and heating installations, first and second fix plumbing, and unvented cylinder work, delivering high-quality workmanship in customers’ homes.

The role requires Gas Safe registration, G3 / Unvented qualification, a full driving licence and the ability to work independently. We offer a company vehicle and a supportive, team‑oriented environment across Central and

Qualifications

• Gas Safe registered and competent in domestic heating installations.
• G3 / Unvented qualification preferred.
• Full clean driving licence and access to own tools.
• Experience with boiler and heating installations in residential properties.

Responsibilities

• Boiler and heating installations in residential properties.
• First and second fix plumbing tasks.
• Unvented cylinder installations.
• Work confidently and professionally in customers’ homes.
• Support varied installation and maintenance projects.

Skills

Domestic heating

Gas Safe

G3 / Unvented

Driving licence

Own tools

Customer focus

Independent worker

Tools

Own tools

Job description

Heating / Plumbing Installation Engineer

London Full-time Permanent

We’re looking for an experienced and qualified Heating / Plumbing Installation Engineer to join the growing Keystone London team.

Keystone London is a growing plumbing, heating and air conditioning company working across Central, West and South West London.

We’re looking for an experienced installation engineer who is confident working independently, takes pride in high-quality workmanship and understands the importance of delivering a professional service in customers’ homes and properties.

The role covers a varied mix of plumbing and heating installation work across London, with opportunities to work on different systems, properties and projects as part of an experienced team.

What You’ll Be Doing

• Boiler and heating installations
• First and second fix plumbing
• Unvented cylinder installations
• Plumbing and heating work across residential properties
• Working confidently and professionally in customers’ homes
• Supporting varied installation and maintenance projects

What We’re Looking For

• Strong experience in domestic heating installations
• Experience with first and second fix plumbing
• Gas Safe registered
• G3 / Unvented qualification
• Able to work independently and manage your workload
• Full clean driving licence
• Own tools
• Professional, reliable and customer-focused approach

What You Can Expect

• Monday to Friday – Full-time permanent position
• Company Vehicle – Van options depending on the role
• Additional Holiday – Additional holiday days each year, up to 8 years, following 3 years’ service
• Annual Christmas Trip Abroad – A yearly trip abroad with the team for our Christmas party
• Close-Knit Team Culture – A friendly, social team with a strong sense of camaraderie
• Regular Team Socials – Bi-monthly social events and activities — it’s not all work and no play

Why Join Keystone London?

We’re building a team of skilled professionals who care about quality, reliability and doing the job properly. You’ll work across a varied range of projects in London while being part of a company that values good communication, high standards and professional workmanship.