Combi Boilers Prices: What You Need to Know Before You Buy

What is a Combi Boiler?

A combi boiler, also known as combination boiler, is a popular type of boiler that provides both heating and hot water on demand without needing bulky hot water storage tanks or cylinders. Combi boilers heat water directly from the mains when you turn on a tap, so there is no need to wait for hot water like with a conventional boiler.

How Combi Boilers Work

Combi boilers work by having a compact unit that contains a heat exchanger and control components. When you open a hot water tap, a sensor tells the boiler to fire up. The heat exchanger takes heat from the boiler and passes it to an integrated flow sensor which controls a diverter valve, sending hot water to the tap. This on-demand system removes the need for a tank.

Combi Boiler Benefits

Combi boilers offer several benefits over traditional boilers:

• More compact and take up less space
• Lower fuel bills as no energy is wasted heating stored water
• Endless hot water supply available whenever you need it
• Faster hot water delivery with no waiting time
• No loft tanks that can leak or need maintenance
• Ideal for smaller homes with one bathroom

Upfront Costs of Buying a Combi Boiler

The upfront cost of buying a new combi boiler includes both the purchase price of the unit itself as well as installation charges.

Purchase Price

Combi boiler prices can range hugely, from just a few hundred pounds for budget options to over £2,000 for high-end brands and models. The average price for a new combi boiler tends to be between £500 - £800. More complex systems with smart controls and connectivity can cost even more.

As a general guide, here are typical combi boiler prices for different types:

• Basic combi boiler - £500 - £700
• Mid-range combi boiler - £700 - £1,000
• Premium combi boiler - £1,000 - £1,500
• Top of the range combi boiler - £1,500+

Of course, prices ultimately come down to the size, brand, features and outputs you need.

Installation Costs

On top of the combi boiler unit price, installation is necessary and adds a significant extra cost. To have a Gas Safe registered engineer fit a new boiler, you're looking at around £500 - £1,000+ for installation.

This covers things like:

• Removing your old boiler (if you have one)
• Installation of new combi boiler
• All fittings and flue parts
• Connecting existing pipework/system
• Testing and commissioning

So when budgeting, remember installation can nearly double the overall price.

Ongoing Costs of Owning a Combi Boiler

As well as purchase and installation costs, owning a combi boiler also comes with some ongoing running costs to factor in.

Energy Bills

Modern combi boilers are very energy efficient, especially condensing models which recover additional heat. Upgrading from an old inefficient boiler can cut yearly fuel bills by up to £305.

That said, combi boilers generally remain the largest household energy user. Expect to spend around £600 per year on energy bills for an average combi boiler.

Maintenance and Repairs

It is recommended to get a yearly service of your combi boiler costing around £80, helping ensure it operates safely and efficiently. However, they can still be prone to breakdowns. Repair costs vary hugely from under £100 for a minor fault up to £500+ for major work. Breakdowns are less likely though if you properly maintain it.

Factors That Influence Combi Boiler Pricing

There are several key factors that impact how much a combi boiler system costs:

Boiler Brand

The brand and manufacturer of the combi boiler makes a major difference to price. Budget or lesser-known boiler brands typically cost £500 - £800. Leading brands like Worcester Bosch, Viessmann and Vaillant range from £800 up to around £1,500. You tend to get better warranties and reliability with the major brands.

Boiler Size and Specifications

The size (kW output) needed directly impacts the price, as higher flow rates and outputs need larger heat exchangers and components. A 24 kW combi suits smaller 1-2 bed flats, while 30+ kW combis work better in larger 3-4 bed houses. Advanced control systems, connectivity to smart thermostats, and weather compensation features can also increase costs.

Where You Live

Combi boilers prices can vary across different areas of the UK. Prices tend to be highest in London and the South East due to higher demand and labour/property costs. Expect to pay £100+ extra on average. Regional variations apply to both purchase and installation.

Time of Year

Many households install new boilers before winter when demand is very high, so late summer or autumn tend to have better offers as contractors have availability between peaks. Installation lead times also tend to be shorter.

Tips for Getting the Best Price on a New Combi Boiler

Here are handy tips to help get a good deal when buying a new combi boiler:

Shop Around and Get Multiple Quotes

Get at least 3 detailed quotes from Gas Safe registered engineers so you can compare. Be sure the quotes separate unit and labour costs with the same boiler specifications for fair comparison.

Consider Buying Online

Online boiler companies like Box For Hometree offer good value combis bought directly without install markups. Just arrange your own Gas Safe engineer to fit it.

Look for Special Offers and Sales

Keep an eye out for seasonal sales, discounts or cashback deals from boiler brands and local installers when booking. You can often save £100+ this way.

Get a Free Boiler Under Government Schemes

If you currently get certain benefits or tax credits, you may qualify for major grants or free combi boiler replacements under schemes like ECO and Green Homes Grant (terms apply).

Conclusion

Deciding whether to purchase a combi boiler and choosing the right model involves weighing up both the upfront and ongoing costs. While combis require a significant initial investment, they can save money over time through lower energy bills and maintenance requirements compared to traditional boiler systems. Doing research to find a suitable combi at a competitive installer price for your property's size and hot water demand is key to getting the best value. Weighing projected energy savings against total purchase and installation costs helps determine if upgrading your boiler is a wise investment. With some budgeting and shopping around, a new combi can be cost-effective while also providing reliable comfort and convenience. Considering all the pricing factors allows you to make the optimal choice for your home.

FAQs

How much will a new combi boiler system cost me?

For everything - boiler unit, installation, flue and controls - budget £1,200 - £2,500+ for typical 3 bed house. Highly dependent on boiler spec and property size though.

Should I choose a cheap or premium combi boiler?

It depends! Cheaper combis can be a false economy if reliability is poor or they are inefficient. But premium boilers may be over spec for smaller homes. Get professional advice on the right model for your needs.

How can I pay for my new combi boiler?

Most homeowners pay for new combis from savings or arrange finance. Some companies offer 0% deals when buying and installing together. Otherwise loans, credit cards or Green Home Finance help spread the cost interest-free.

Will a new combi boiler reduce my energy bills?

Yes - newer condensing combis convert over 90% of fuel to heat, cutting gas usage about 10-15% on obsolete non-condensing models. Just ensure your heat controls and radiators also suit for maximum savings.

How often should I get my combi boiler serviced?

An annual service helps reliability and efficiency. It's recommended by manufacturers, and may be required to keep warranties valid on parts and labor. Some insurers also require an annual service record for claims protection.