Heat Interface Units (HIU)
We provide expert HIU service and repair across London. Book one of our professional engineers today.
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Premium, engineering-led support for developers, landlords, property owners and managing agents. We cut reactive maintenance costs and prevent avoidable breakdowns before they happen.
Welcome to PH247
Our Gas Safe and G3 unvented certified engineers look after boilers, heating, plumbing, hot water cylinders, compliance works and emergency call-outs across managed homes, rental properties and residential portfolios. Every job comes with clear communication, transparent pricing and a photo report.
Accredited, registered & approved
Our services
From heat interface units in new-build blocks to blocked drains and boiler breakdowns, one accountable team covers it all.
We provide expert HIU service and repair across London. Book one of our professional engineers today.
Explore HIU services
Whether it’s a boiler repair, boiler installation, electrical boiler service or general boiler services you need, we’ve got you covered.
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Drain blockages can cause tons of issues, so let PH247 get the problem sorted right away. If you need any drain repairs, we can fix them too.
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Why PH247
Clear rates, qualified engineers and workmanship we stand behind for life.
The Consumer Rights Act requires 12 months. We go further and stand behind every job for the lifetime of your installation.
No surprises. Bespoke quotations with full transparency, explained step by step, with direct WhatsApp access to the team.
Gas Safe, CIPHE, Water Regulations and TrustMark aligned, with photo reports on every job for your records.
Customer reviews
Book a visit, set up a PH247 Service Plan, or talk to an engineer now. We’re on call 24/7 across every London borough.
Book an appointment
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In the live site, this goes straight to the PH247 booking team with a confirmation text to the customer.