Combi Boiler Brands


Combi Boiler Brands

We work closely with leading combi boiler brands such as Vaillant, Worcester, and many others, providing you with honest, expert advice to find the perfect combi boiler for your home.

Vaillant Combi Boilers

Vaillant combi boilers deliver superior reliability, efficiency, comfort, and compact design.

Worcester Bosch Boilers

Worcester combi boilers offer outstanding reliability, efficiency, innovation and trusted performance.

Viessmann Combi Boilers

Viessmann combi boilers provide exceptional efficiency, advanced technology, reliability, and durability.

Ideal Combi Boilers

Ideal combi boilers offer reliable performance, energy efficiency, affordability, and quality.

Baxi Combi Boilers

Baxi combi boilers affordable, straightforward, built to last and effortlessly reliable.

Alpha Combi Boilers

Alpha combi boilers combine smart design, solid performance, and great value.

Expert Combi Boiler Installations


Boiler Installation

Boiler installation professionally fits new boilers, ensuring safe, efficient heating and reliable hot water.

Combi Boiler Installation

Replacement/Upgrades

Boiler upgrades replace older boilers with efficient models, saving energy and reducing heating bills.

Combi boilerreplacement

System Conversion

System conversion involves upgrading your heating system to a combi boiler for improved efficiency.

Upgrading heating systems

Save your energy bills with a new combi boiler

Factors to Consider When Choosing a Combi Boiler Brand

When choosing a combi boiler brand, homeowners should carefully consider several key factors to ensure they select the best option for their needs. Energy efficiency is crucial, as an efficient boiler can significantly lower energy bills and reduce environmental impact. Additionally, the brand should offer models suitable for your home's size and hot water demands—smaller properties typically require different boilers than larger households with multiple bathrooms. Budget constraints also play a role; comparing upfront costs, long-term savings, and available finance options can guide your choice. Lastly, evaluate the after-sales support, including warranty length, customer service quality, and availability of maintenance services, to ensure lasting peace of mind.

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Consultation


Ready to replace your combi boiler? Contact us today for a free, no-obligation consultation with our expert team.

 

 

 

What is a combi boiler?

Latest Innovations from Combi Boiler Brands

Enhance energy efficiency

Combi boiler brands are continually innovating to enhance energy efficiency and user experience. For instance, Viessmann's Vitodens 100-W Combi Boiler achieves an impressive efficiency rating of up to 98%, thanks to its advanced condensing technology and stainless steel heat exchanger.

Reducing energy consumption

Similarly, Weil-McLain's Simplicity™ high-efficiency combination gas boiler offers a 95% AFUE energy rating, reducing energy consumption and providing significant savings on heating bills. These advancements not only lower energy costs but also contribute to environmental sustainability.

Customer Reviews


"Absolutely thrilled with our new combi boiler installation! The installer was professional, tidy, and clearly explained everything throughout the process. Our home now heats up faster, and we've already noticed a drop in our energy bills—highly recommended!"

- Sarah M., London

 

Happy couple enjoying benefits of combi boiler?

Is a Combi Boiler Right for My Home?

A combi boiler is ideal for homes that require efficient heating and instant hot water without the need for extra storage space. It's particularly well-suited to small or medium-sized properties with one or two bathrooms and good mains water pressure. However, if your household has higher hot water demands or multiple bathrooms used simultaneously, you might benefit from a system boiler or regular boiler instead.

Benefits of Combi Boiler Installation

We work closely with leading combi boiler brands such as Vaillant, Worcester, and many others, providing you with honest, expert advice to find the perfect combi boiler for your home.


 

Advantages

 

  • Instant Hot Water - Combi boilers heat water instantly when needed, providing immediate access to hot water.
  • Space Saving – No need for separate water tanks or cylinders, freeing up valuable space in your home.
  • Energy Efficient – Modern combi boilers are highly efficient, reducing energy consumption and lowering bills.
  • Cost-Effective – Lower running costs and reduced maintenance expenses due to fewer components.
  • Reliable and Safe – Fewer moving parts mean fewer breakdowns, making combi boilers reliable and safe when professionally installed.
  • Faster Installation – Typically quicker and simpler to install compared to traditional boilers due to fewer components.
  • Improved Water Pressure – Provides hot water at mains pressure, resulting in powerful showers without additional pumps.
  • Cleaner Water Supply – Water is sourced directly from mains supply, meaning fresher, cleaner hot water.
  • Easier Maintenance – Compact and straightforward design makes servicing quicker, simpler, and usually more affordable.
  • Compatibility with Smart Controls – Combi boilers easily integrate with smart thermostats and controls for enhanced convenience and energy savings.

Disadvantages

 

  • Dependent on Mains Pressure – Combi boilers require good water pressure; if your home has poor mains water pressure, performance may be compromised.
  • No Backup Water Supply – With no hot water storage, you won't have hot water reserves if the boiler fails or experiences issues.
  • Reliant on Electricity – Combi boilers depend on electricity to operate controls and ignition systems, meaning they'll stop working during a power outage.
  • Not Suitable for Homes with Weak Gas Supply – Older properties or those with weaker gas supply might struggle with efficient combi boiler performance, requiring costly upgrades to gas infrastructure.

2-year Manufacturers Guarantee

Local engineers near to you

Local Engineers Near to You

When it comes to combi boiler installation, choosing local engineers near you offers convenience, fast response times, and a personalised service you can trust. Our team proudly serves homes across South East London, including the boroughs of Southwark, Lewisham, Greenwich, and Bromley. We also operate throughout Central and East London, covering areas like Camden, Islington, Tower Hamlets, Newham, and Hackney. Our engineers are Gas Safe registered, fully qualified, and experienced in handling all types of boiler installations—no matter the size or complexity of the job.

Being locally based means we understand the unique heating needs of properties across these London boroughs, from Victorian terraces and new-build flats to period conversions and family homes. We’re able to offer flexible appointments, honest advice, and efficient installation that meets both your home’s requirements and your budget. Whether you're replacing an old boiler, upgrading to a more energy-efficient system, or need urgent help due to no hot water or heating, our friendly team is just around the corner and ready to help.

Customer Reviews


"Excellent service from start to finish, our new combi boiler was installed quickly, professionally, and without hassle. The team was friendly, tidy, and clearly explained everything. Our heating and hot water have never been better. Highly recommend!"

- James R., Kensington

How Much Does a Combi Boiler Installation Cost?

Prices starting at just £1,700

We provide professional combi boiler installations tailored to your home's unique heating requirements, with prices starting at just £1,700. Our transparent pricing ensures there are no hidden surprises, and we offer exceptional value without compromising on quality or reliability. The overall cost of your installation will depend on several factors, including the boiler brand and model, the complexity of the installation, and any additional system enhancements you may need. Whether you're replacing an old, inefficient boiler or upgrading your heating system entirely, our experienced engineers will guide you through every step, recommending the ideal solution to suit your budget and energy-saving goals. By investing in a new combi boiler with us, you'll enjoy immediate savings on your energy bills, improved heating efficiency, and long-term reliability from trusted experts in your local area.

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2-year Manufacturers Guarantee

Combi Boiler Installation FAQ's


 

What is a combi boiler?

A combination (combi) boiler is a single unit that provides both central heating and hot water on demand, eliminating the need for separate water tanks or cylinders.

 

How much does it cost to install a combi boiler?

Installation costs vary based on factors like the boiler model, installation complexity, and location. On average, a basic installation with us costs from £1,700

 

How long does it take to install a combi boiler?

A straightforward combi boiler installation typically takes about one day. However, more complex installations or system conversions may require additional time.

 

Do I need to replace my existing heating system to install a combi boiler?

Not necessarily. A qualified heating engineer can assess your current system and determine if a combi boiler can be integrated or if modifications are needed.

 

Are combi boilers energy-efficient?

Yes, modern combi boilers are highly energy-efficient, often achieving efficiency ratings of 90% or higher, which can lead to reduced energy bills.

 

Will a combi boiler provide enough hot water for my home?

Combi boilers are suitable for homes with one to two bathrooms. For larger households with higher hot water demand, a system boiler might be more appropriate.

 

What maintenance does a combi boiler require?

Regular annual servicing by a certified engineer is recommended to ensure optimal performance, safety, and longevity of the boiler.

 

Can a combi boiler work with existing radiators?

Yes, in most cases, combi boilers can be connected to existing radiators. However, it's advisable to have the system assessed to ensure compatibility and efficiency.

 

Is planning permission required to install a combi boiler?

Generally, no. However, if you reside in a listed building or conservation area, it's best to consult local regulations or authorities.

 

How do I choose the right combi boiler for my home?

Consider factors like the size of your property, number of bathrooms, and hot water demand. Consulting with a qualified heating engineer can help you select the most suitable model.

Combi boiler installation diagram

Combi Boiler Installation Diagram

Combi Boiler Pipes Explained

A combi boiler installation diagram clearly illustrates the components and layout of a typical combi boiler system, helping homeowners and installers understand the connections and operation.

The diagram usually shows the boiler unit itself, the main water supply, heating flow and return pipes, radiators, gas supply, and associated controls such as thermostats and timers. By referencing an installation diagram, engineers ensure proper placement, optimal efficiency, safety compliance, and effective troubleshooting.