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Frequently Asked Questions

Thank you for visiting our FAQ’s page, here you can find answers to frequently asked questions, if you are unable to find the information you require then please get in touch with us.

Got a boiler question?

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Did you know a boiler service can improve the efficiency of your boiler? You are spending your money on your household bills so that you can remain comfortable in your home. When you spend money on your boiler, you want to know it’s for the right reasons and an efficient boiler is always a good reason to spend some cash. This investment is smart right before the energy price hike, and if you are on top of it now you won’t have to worry about it later on this year. Take the time to ensure that your boiler is properly serviced and you can look forward to lower bills and a boiler that runs efficiently.

All boiler repairs and servicing should be carried out by qualified engineers. There are rules surrounding who is able to repair and service a boiler, but you want the experts, right? Your boiler will be much more efficient when it’s serviced as you won’t be dealing with energy waste, or carbon monoxide leaks! When you miss your inspection and service, you are potentially missing out on issues that could expose you to higher energy bills, gas and pressure issues, electrical connection problems and more. Your house and your wallet deserve much better than that.

Making your home eco-friendly may not have been a priority of yours, but now is the time to get your home and your boiler ready for the energy price rises. Get yours repaired today and be ready for the changes ahead.

If you are a homeowner dealing with a dodgy boiler that is no longer keeping your house and hot water warm, then the best thing you can do is to look at its previous servicing date. If you haven’t had your boiler serviced in a while, you need to think about whether you are due a new service. Calling in a Gas Safe Registered engineer to come in and service your boiler from the top down is the smartest decision you could make this year.

A serviced boiler is a boiler that continues to work. In the interest of keeping your warranty intact, you want to ensure that you service your boiler in the first twelve months. You then want to ensure that you continue to schedule those boiler servicing appointments every twelve months thereafter. This will ensure that you are keeping up with the gas boiler you have and allow you to keep your house warm, too.

Check in with your manufacturer before you get a Gas Safe Registered engineer to check the boiler in your home. The costs will depend on the boiler type and the engineer that you hire. A boiler has to be properly maintained so that you can have the boiler working properly at all times. Without that maintenance, your boiler issues may go unnoticed.

If you’re a new homeowner in the UK, you may be caught between the question of whether to buy a new gas boiler for your home, or to have a new heat pump installed.

Both options promise to heat your home, with boilers being a reliable, time-tested option, and with heat pumps promising to be the most suitable approach for the modern world.

Let’s investigate closer.

What you need to know about boilers

Boiler benefits

  • High performance heating year round
  • Boilers perform consistently as long as they are in good repair and aren’t impacted by outside weather conditions. This is an edge over heat pumps.
  • The existing UK housing market is built for boilers
  • Existing homes have been largely built with boilers in mind, and so existing radiators and pipes will be suited for modern boilers.
  • Don’t require perfect insulation
  • Perfect insulation is always a plus, but many homes don’t have it. Boilers can do a good job of heating even poorly insulated homes.
  • Boiler servicing is a big industry
  • Finding a qualified heating engineer to conduct a boiler service or to attend a boiler repair job is extremely straightforward.

Boiler drawbacks

  • Not the king of energy efficiency
  • While boilers have been getting more and more energy efficient, they’re not as energy efficient as heat pumps.
  • On the wrong side of government targets
  • Government targets to cut fossil fuel use and to achieve carbon neutrality by 2050 may be a bad sign for boilers.

What you need to know about heat pumps

Heat pump benefits

  • King of energy efficiency
  • At their best, heat pumps achieve a COP score of 3. For each unit of energy they consume, they give back three units as heat.
  • Environmentally friendly
  • Heat pumps are popular in the renewable energy space for their energy efficiency.
  • Subsidies available
  • The government’s Boiler Upgrade Scheme subsidises heat pump installation at up to £5,000.

Heat pump drawbacks

  • Less efficient in winter
  • Heat pumps draw heat from outside. The colder it is, the less efficient they are.
  • Underperform in draughty homes
  • Heat pumps may struggle to heat older, draughtier homes.
  • Scarcity of trained technicians

With relatively few heat pump technicians out there, repairs may take a while and cost more.

Currently, gas prices in the UK are at their highest in history. You may have difficulty staying warm. Here are some tips for conserving energy during the winter months:

  • Boiler maintenance
  • Reduce phantom energy
  • Pipe insulation

To avoid a shutdown and increased gas consumption, it is crucial to have your boiler serviced. Appliances left on standby will also use more energy. Keeping your pipes warm reduces the amount of energy needed to heat your water.

Get a Boiler Service

During the winter, you use your boiler more often. As a result, it is essential to maintain it regularly. If you don’t maintain your boiler with an annual boiler service, it may stop working when you need it the most, needing a boiler repair. In addition, an old boiler is not as efficient as a new boiler, and inefficiency results in the boiler using more energy. If you wish to ensure your family’s safety, have your boiler inspected regularly by a Gas Safe registered engineer or replace if necessary.

Switch Off Appliances

The easiest way to reduce the amount of energy you use is to remember to turn off your appliances when not in use. It is possible to turn off most electrical appliances at the plug without interfering with their settings, saving on your energy bills. Just remember to leave smart home devices on for continued usage.

Insulate Your Pipes

Your home’s pipes can lose heat if they aren’t insulated along with windows and doors. You can reduce the energy you need to heat your water if you insulate your pipes. Pipe insulation helps your hot water to stay hotter for longer. Your hot water tank, boiler and pipes should be covered by a foam insulation tube.

Energy use is influenced by many factors but making a few simple adjustments can save you money this year.

Condensing boilers have been around for about a decade and a half. Since 2005 they have been the norm in England and Wales. So, if you have a boiler problem and are either thinking of ordering a replacement or boiler repair, then speak with us first. We can not only do a quick new boiler install, but we can also provide you with a range of condensing combi boilers for maximum efficiency.

What is condensing technology?

It’s one of the simplest things to get your head around. Normally in a gas burner or oil-fired boiler, the excess heat is ventilated out of the system. In condensing units, they are not expelled but rather blown onto a cold coil which then allows the droplets to enter into the cool water entering into the boiler. So instead of cool water, warm water is heated up. This results in a 90% increase in efficiency which in turn, means less time with the boiler on and more savings!

Combi boilers

Combi is short for combination. A combi boiler combines the two jobs of heating up water for showers, shaving, face washing, baths, etc, with the central heating. One side does each, and usually, it’s the central heating with the less power. So, with condensing, your home will heat up faster and your water will too for your showering needs in a busy household.

If you would like to know more about combi and condensing boilers, feel free to ask us about our services and how we can help you find the right boiler for your home.

Does your boiler keep losing pressure? Here are the common culprits that you could be facing here and the right solutions you need.


First, it’s possible that a problem with low pressure is caused by a leak. This can be a leak in the boiler or another part of your heating system. To check for an issue here, you might see dripping water, but the leak could also be internal – so then it’s time to call G Green for professional assistance.

Faulty Valves

You might find that the pressure in the boiler has risen because the pressure relief valve isn’t working as it should. If the pressure gets too high, the valve can become faulty and then start leaking water. This in turn causes the pressure to drop. You need to check if there is a leak from the copper pipe that is attached to your boiler system.

Bled Radiator

It’s possible that your boiler has dropped in pressure because you have recently bled your radiator. You can correct an issue here by repressurising your boiler. This is possible using the filling taps. You can open them to increase the pressure but you need to close them again to ensure that your pressure doesn’t get too high. G Green can help with this too.

Broken Boiler Parts

Finally, you might find that the reason that your boiler is losing pressure is due to a broken part. Usually, you can spot this on the boiler monitor. It’s also a good reason why you should get annual checks of your boiler.