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Unvented Systems (Pressurised Hot Water Tanks)

Unvented hot water systems provide strong, mains-pressure hot water throughout the home — but they must be installed, serviced, and maintained correctly.

GasSafe1 provides professional plumbing services for unvented (pressurised) hot water systems, carried out by qualified engineers who understand the safety and compliance requirements involved.

Our unvented system services include:

  • Installation of unvented hot water cylinders
  • Servicing and safety checks
  • Pressure relief valve testing
  • Expansion vessel checks and replacement
  • Fault diagnosis and repairs
  • Replacement of failed components

Because unvented systems operate under pressure, regular servicing is essential to ensure safety, performance, and compliance with regulations.

If your hot water pressure has dropped, relief valves are discharging, or the system is noisy or inconsistent, it’s a sign the system needs professional attention.

GasSafe1 provides professional domestic appliance servicing, repair, installation, and safety checks for household appliances — carried out by Gas Safe registered engineers.

Your home appliances are central to everyday living. When they break down, are incorrectly installed, or haven’t been checked properly, it can lead to inefficiency, inconvenience, or safety risks. We make sure your appliances are installed correctly, maintained properly, and repaired safely when issues arise.

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Appliance Servicing & Safety Inspections

Regular servicing helps appliances run efficiently and reduces the likelihood of unexpected breakdowns.

For gas appliances, safety inspections are essential to ensure correct operation and to reduce the risk of gas leaks or carbon monoxide issues.

Our appliance servicing includes:

  • Gas safety checks where applicable
  • Burner, ignition, and flame inspection
  • Control and thermostat checks
  • Cleaning and adjustment of key components
  • Fault identification and reporting
  • Honest advice on maintenance and longevity

Servicing is carried out thoroughly — not rushed.

Appliance Repairs

If an appliance isn’t working correctly, we provide professional fault diagnosis and repair to get it back up and running safely.

We repair domestic appliances including:

  • Gas cookers
  • Electric cookers and ovens
  • Gas fires
  • Electric fires
  • Integrated kitchen appliances

Where repairs are no longer cost-effective, we’ll tell you straight and advise on replacement — no wasted money, no guesswork.

Appliance Installation

Correct installation is essential for performance, safety, and warranty protection.

We provide professional installation for:

  • Gas cookers, hobs, and ovens
  • Electric cookers and ovens
  • Gas fires
  • Electric fires

All appliance installations are carried out in line with manufacturer instructions and current safety regulations, followed by full commissioning and checks where required.

Common Appliance Issues We Fix

We regularly resolve problems such as:

  • Cookers that won’t light or heat evenly
  • Ovens not reaching or holding temperature
  • Ignition and control faults
  • Thermostat failures
  • Gas fire performance issues

If your appliance is inconsistent, unreliable, or not performing as it should, we’ll identify the cause and fix it properly.

Gas Safe Registered Engineers

All gas appliance work is carried out by Gas Safe registered engineers, meaning:

  • Safe, compliant installation and repairs
  • Work completed to UK gas safety standards
  • Peace of mind that your appliance is safe to use

Gas appliances should never be worked on by unqualified installers — this isn’t optional.

Book an Appliance Engineer

From appliance servicing and repairs to full installations, GasSafe1 provides reliable domestic appliance services you can trust.
Get in touch to book an engineer or to discuss your appliance requirements.

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Testimonials

 
Recently had my boiler replaced by this company and the whole experience was exceptional, from talking to Zoe in the office to then having Lee call at the house the very next day, they made me feel comfortable and confident straight away. Had my new boiler installed within a week and a few upgrades to radiators and valves, clean, tidy and exceptionally neat workmanship, very professional approach in all aspects, would highly recommend.

John Callard - Boiler Replacement

I would just like to say thank you very much for your patience with my boiler Lee, it hasn’t leaked since your first visit, so fingers crossed you have solved it! Thank you again.

Jean Warner - Boiler

Absolutely brilliant company Lee and his team just moved our boiler from kitchen to airing cupboard they were very polite and courteous and went above and beyond to ensure the job was done with minimal fuss and disruption would highly recommend there service’s many thanks to you all on a job well done.

Mark Jones - Boiler Replacement