Certified Gas Safe Engineers
Reliable gas engineering, boiler servicing, heating diagnostics and safe gas appliance installations across Hertfordshire, Essex & North London.

Safety First Heating & Gas
Qualified Gas Engineering Solutions
Working with gas requires verified certification, precision testing, and strict compliance with safety regulations. At HAAS Plumbing & Heating Services LTD, our gas engineers ensure your heating and gas appliances operate safely, efficiently, and reliably all year round.
- Annual Boiler Servicing: Flue gas analysis, pressure checks, combustion testing and efficiency tuning.
- Gas Leak Detection & Pipe Repair: Fast response to trace, isolate and safely repair gas leaks.
- Boiler Breakdown & Fault Finding: Diagnosing pilot light, ignition, and sensor issues on all major brands.
- Gas Hob & Cooker Installation: Professional fitting, secure pipe connections and safety testing.
- Gas Pipework Alterations: Relocating or upgrading gas lines for extensions and kitchen renovations.
- Heating System Safety Inspections: Verifying ventilation, flues, and system integrity.
Professional Standards
Safe, Compliant & Dependable Workmanship
Whether you are installing a new gas appliance, experiencing heating faults, or seeking a routine annual boiler service, our qualified team delivers thorough checks with zero corners cut.
We protect your property, use calibrated testing tools, and provide clear explanations before and after every job.

Our Work
Before & After
See the HAAS difference β professional pipework, tidy finishes and expert craftsmanship on every job.




Need a Qualified Gas Safe Engineer?
Contact our friendly, Gas Safe certified team for expert heating and gas services across Hertfordshire, Essex & North London.
Call 07539 178613 Now