Premium plumbing & heating, done properly across Leeds
Boiler installation, 24/7 emergency repairs, bathrooms and underfloor heating from a Gas Safe registered, fully insured team covering Headingley, Chapel Allerton, Horsforth, Roundhay and the wider West Yorkshire area.
- Gas Safe Registered
- 24/7 Emergency Response
- 5-Star Rated
- Free Quotes
Local, Gas Safe registered and fully insured
A premium, highly responsive plumbing and heating service for homeowners and landlords across Leeds and West Yorkshire. We combine the technical standards and safety protocols of a national firm with the care, punctuality and upfront, honest pricing of a trusted local business — arriving on time, protecting your floors and charging exactly what we quote.
Our services
From a single emergency leak to a full boiler installation or a complete bathroom renovation — the same Gas Safe standards and fixed-price transparency on every job.
Boiler Installation & Heating Upgrades
Worcester Bosch Accredited and Vaillant-trained installs with up to a 12-year manufacturer warranty.
Emergency Plumbing Repairs
24/7 rapid-response leak detection and repairs, typically on site in under 60 minutes across our core postcodes.
Bathroom Design & Renovation
Bespoke 3D design through to a fully fitted bathroom or wet room — managed end to end by our in-house team.
Gas Safety Certificates & Boiler Servicing
Detailed annual servicing and landlord CP12 certificates from a Gas Safe registered engineer, emailed on the day.
Power Flushing & System Deep Clean
Industrial power flushing with magnetic filtration and a before-and-after thermal report to restore even heat.
Underfloor Heating Design & Installation
In-house heat-loss design and installation of overlay and in-screed underfloor heating for warm, even rooms.
Premium plumbing & heating, done properly
Plumbing and heating across Leeds with fixed-price quotes, Gas Safe registered engineers and a tidy, accountable approach.
Simple from quote to finish
From first enquiry to handover, the process is straightforward — clear communication, Gas Safe workmanship and finished on the timeline we agreed.
- Step 01EnquiryGet in touch — by phone, email or the quote form on the site.
- Step 02Survey & quoteOn-site survey to assess the work and your system. A fixed-price quote follows, usually within 24 hours.
- Step 03The workCarried out tidily and on schedule by Gas Safe engineers, with floors protected and daily clean-down.
- Step 04HandoverWe commission and test everything, register your warranty and walk you through your new system.
Verified jobTrusted across Leeds
Onyx fitted a new boiler and a full set of smart radiator valves at our house in Headingley and the difference is night and day. The engineer explained every option without any pressure, worked cleanly around the kids, and the house is warm again for far less than we expected. Brilliant from start to finish.
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Why choose us
- Fully insured & guaranteed work
- Free, no-obligation quotes
- Tidy and reliable tradespeople
- Clear, upfront pricing