Find heating and plumbing professionals serving Harrow. Home to around 149,246 people, From annual boiler services and breakdowns to full heat pump and oil installations, the engineers listed here cover Harrow, in Greater London and keep their qualifications and records up to date. It also puts you within reach of engineers covering nearby Wembley.
Every business shown in Harrow runs its jobs, certificates and customer records on TradeWorkDesk. Listings display the trades and registrations each engineer provides — always confirm a tradesperson's registration before work begins.
Gas work must be done by a Gas Safe registered engineer; oil heating work should be carried out by an OFTEC registered technician. You can verify any registration directly with those bodies.
Listings updated 2026-10-29.
Browse the verified tradespeople listed on this page, or search our wider directory. Every business on TradeWorkDesk manages their jobs and compliance through the platform, so you can compare trades, reviews and contact details before getting in touch.
Listings show each engineer's trades and any registrations they've added, such as Gas Safe or OFTEC. Always confirm a tradesperson's registration with the relevant body before work begins.
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