Gas Boiler Installation in Portsmouth: A Complete Guide by Gas-Go Heating

Gas Boiler Installation in Portsmouth: A Complete Guide by Gas-Go Heating

Upgrading your boiler is one of the smartest ways to improve your home’s energy efficiency, comfort, and safety. At Gas-Go Heating, we offer expert gas boiler installation in Portsmouth and surrounding areas of Hampshire, helping homeowners choose the right system, fitted by qualified Gas Safe engineers with full aftercare support.

This guide walks you through every step of the process — from the initial consultation to ongoing care plans — so you know exactly what to expect when choosing a new heating system.

🏠 Consultation & Location Survey

Every successful boiler installation starts with a home survey. We don’t believe in guesswork — we believe in tailoring the system to your property.

When you contact Gas-Go Heating, we’ll book a free consultation where our experienced engineer will:

  • Assess your existing boiler, controls, and pipework
  • Review the layout and size of your home
  • Identify the number of bathrooms, radiators, and hot water outlets
  • Check water pressure and flow rate
  • Consider flue routing, condensate drainage, and gas supply position
  • Discuss your heating and hot water usage patterns

We’ll then recommend a setup that suits your lifestyle, property, and budget.

🔍 Choosing the Right Boiler or Boiler & Cylinder

There’s no one-size-fits-all boiler — and getting the wrong one can leave you with poor pressure, high bills, or constant breakdowns.

We’ll help you decide between:

✅ Combi Boilers

  • Perfect for small to medium homes with one bathroom
  • Instant hot water without a tank
  • Compact and efficient

✅ System Boilers

  • Ideal for medium to large homes with multiple bathrooms
  • Works with a sealed unvented cylinder (e.g. Megaflo)
  • Provides high hot water flow rates

✅ Regular (Heat-Only) Boilers

  • Suited to older homes with existing open vent systems
  • Works with tanks and a hot water cylinder
  • Good for properties with low mains pressure

We’ll also help you choose the best:

  • Cylinder type (vented or unvented, depending on water pressure)
  • Smart thermostat (e.g. Nest, Hive, Tado)
  • Magnetic filter and limescale reducer for system protection

🛠️ Boiler & Parts Procurement

Once your system is designed, we’ll source your new boiler and all required parts. We are able to get all top boiler brands, including:

  • Worcester Bosch
  • Vaillant
  • Ideal
  • Baxi
  • Viessmann

We only install ErP A-rated boilers with a minimum 7–12 year warranty, and we register them directly with the manufacturer and Gas Safe on your behalf.

Parts we may include:

  • Magnetic filter
  • Condensate pump or soakaway
  • Smart thermostat
  • New zone valves or pump
  • Programmers, sensors, or wiring upgrades

We keep you fully informed of costs, with no hidden fees.

🔧 Installation by Gas Safe Engineers

Our team of Portsmouth-based engineers carries out the full installation with care and precision. This usually includes:

  • Removing your old boiler (and cylinder if necessary)
  • Updating the gas supply pipework to comply with BS 6891
  • Installing the new boiler, flue, and condensate system
  • Upgrading or replacing controls, wiring centre, and thermostats
  • Power flushing or cleaning the system to remove sludge and debris
  • Adding corrosion inhibitor and biocide treatments
  • Lagging pipework and commissioning safety controls

We always follow Gas Safe regulations, manufacturer installation manuals, and best practices. Dust sheets and shoe covers are standard — your home is treated with respect.

🧪 Commissioning & Handover

Before we leave, we commission your new system:

  • Test for gas tightness and flue integrity
  • Set correct burner pressure and gas rate
  • Check hot water temperature and pressure
  • Program heating and hot water schedules
  • Demonstrate how to use the new controls
  • Fill in your Benchmark Logbook
  • Register the boiler with Gas Safe and the manufacturer

You’ll receive all relevant documentation including:

  • Installation certificate
  • Gas Safe Building Regulations notification
  • Warranty confirmation
  • Digital user manual and support info

🛡️ Future Care & Servicing

To keep your boiler warranty valid and the system running efficiently, an annual service is essential.

Our servicing includes:

  • Combustion analysis
  • Gas and safety checks
  • Cleaning the burner and heat exchanger
  • Checking for wear or early signs of failure
  • Topping up system pressure or inhibitor if required

We’ll remind you when your next service is due and offer priority scheduling for existing customers. If your boiler is installed by Gas-Go Heating, we offer 50% discount on your first Annual Boiler Service, 11 months after original installation.

🚐 Areas We Cover

We install boilers across:

  • Portsmouth
  • Southsea
  • Cosham
  • Drayton
  • Waterlooville
  • Havant
  • Gosport
  • Fareham
  • Hedge End
  • Botley
  • And surrounding Hampshire areas

📞 Ready for a New Boiler in Portsmouth?

Contact Gas-Go Heating today for a free quote and home survey. We’ll help you choose the right boiler, install it professionally, and keep it running for years to come.

 

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