Gas Boiler Service in Portsmouth & Surrounding Areas: What’s Involved

Gas Boiler Service in Portsmouth: What’s Involved and Why It Matters

By Gas-Go Heating – Trusted Local Engineers

If you live in Portsmouth or the surrounding areas, keeping your gas boiler in good working order isn’t just smart — it’s essential. A regular gas boiler service ensures safety, improves efficiency, and helps avoid costly breakdowns when you need heating most. In this post, Gas-Go Heating explains exactly what’s involved in a boiler service, how often you should have one, and why homeowners in Portsmouth choose us for reliable, professional servicing.

🔧 What Is a Gas Boiler Service?

A gas boiler service is a thorough inspection, cleaning, and performance check carried out by a Gas Safe registered engineer. It ensures that your boiler is operating safely, efficiently, and in line with manufacturer specifications.

At Gas-Go Heating, we follow industry best practices and manufacturer-approved procedures for every boiler service, whether it’s a combi boiler, system boiler, or regular heat-only boiler.

🧰 What’s Included in a Gas Boiler Service?

When you book a service with Gas-Go Heating, here’s what our engineer will do:

✅ 1. Visual Inspection

  • Check the boiler casing, pipework, flue, and controls for signs of corrosion, leaks, or damage
  • Ensure the installation complies with current Gas Safety Regulations
  • Confirm that there is adequate ventilation and no obstructions around the boiler

✅ 2. Gas Safety Checks

  • Verify gas pressure and flow rate are within manufacturer limits
  • Check the burner pressure and gas rate using a calibrated digital manometer
  • Perform tightness testing for leaks around joints, valves, and pipework

✅ 3. Flue and Combustion Testing

  • Inspect the flue for integrity, correct termination, and secure fixings
  • Use a flue gas analyser to measure:
  •     Carbon monoxide (CO) levels
  •     Carbon dioxide (CO₂) ratio
  •     Flue temperature
  •     Combustion efficiency

  •     Ensure CO levels are safe and combustion is stable

✅ 4. Internal Boiler Component Inspection

We safely remove the boiler case to inspect and clean internal parts:

  • Main heat exchanger (for signs of blockage, scaling, or corrosion)
  • Burner (clean and check flame picture)
  • Ignition electrodes & sensor (clean and set correct gap)
  • Fan and seals (check for noise or wear)
  • Condensate trap (flush and clean if necessary)
  • Clean or replace filters where fitted

✅ 5. Operational Checks

  • Test boiler startup and shut-down sequence
  • Verify hot water and heating demand response
  • Confirm thermostats, programmers, and zone valves operate correctly
  • Bleed radiators if needed
  • Advise on system pressure or topping up sealed systems

✅ 6. Service Record and Advice

  • Complete the Boiler Service Record in your logbook (important for warranties!)
  • Inform you of any faults, advisories, or recommendations
  • Provide guidance on upgrades or improvements (e.g. smart controls, filters)

📅 How Often Should You Service Your Boiler?

Most manufacturers recommend annual servicing. This:

  • Keeps your warranty valid
  • Reduces the risk of carbon monoxide leaks
  • Helps you spot issues before they become breakdowns
  • Keeps your heating system working at maximum efficiency

⚠️ Is Boiler Servicing a Legal Requirement?

For landlords in Portsmouth, the answer is yes. It’s a legal duty under the Gas Safety (Installation and Use) Regulations 1998 to:

  • Have all gas appliances in rental properties inspected annually
  • Provide tenants with a valid Gas Safety Certificate (CP12)

Gas-Go Heating offers landlord safety checks and certificates alongside standard servicing.

💷 How Much Does a Gas Boiler Service Cost in Portsmouth?

At Gas-Go Heating, we offer transparent pricing with no hidden charges.

Typical price: from £60 including VAT
✔ Fixed labour
✔ All checks included
✔ Certificate provided
✔ Friendly, local Gas Safe engineers

You can also bundle a boiler service with a system flush, new thermostat, or radiator balancing for extra value.

🧑🔧 Why Choose Gas-Go Heating?

✅ Local Portsmouth-based engineers
✅ Fully qualified and Gas Safe registered
✅ Honest, upfront prices
✅ Respectful of your home — dust sheets, punctual, and tidy
✅ Emergency support and breakdown repairs available
✅ Trusted by homeowners, landlords, and letting agents across Portsmouth and the South Coast

📞 Book Your Boiler Service Today

Don’t wait for a cold morning or a boiler breakdown. Keep your home warm, safe, and efficient with a professional boiler service from Gas-Go Heating.

We cover all of Portsmouth, Southsea, Cosham, Fratton, Hilsea, Drayton, and surrounding areas.

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