In partnership with Avenue Property Services Group LTD
New Boiler Installation across Hertfordshire & North London
keeping WATFORD, HERTFORDSHIRE warm & cosy since 2017
Warming homes in Watford and Herts since 2017
HERTFORDSHIRE'S MOST REVIEWED BOILER Installation COMPANY
Choosing a new boiler
When you are ready to have to start thinking about needing a new boiler installation as your boiler repairs have failed. Whether it be due to an emergency break-down and you need a replacement boilerin a hurry, or whether you want to plan a possible future need for a boiler replacement so that you can be sure your heating will be working well during the cooler seasons.
Our heating engineers are here to help guide you into choosing the best new boiler installations for your home.
There are many different factors that you need to take into account when selecting the right boiler for your home, these include:
Avenue Heating working with the UK's most trusted boiler brands
Hertfordshire & North London Boiler Packages
A boiler range for every Watford and Hertfordshire home & family budget!
Worcester 4000
Up to 10 year guarantee. Available in sizes ranging from 25kW – 30kW
£2000+
*Subject to supply chain fluctuations
Vaillant EcoTec Pro
Up to 10 year guarantee. Available in sizes ranging from 22kW – 35kW
£2370+
*Subject to supply chain fluctuations
Worcester 8000
Up to 12 year guarantee. Available in sizes ranging from 30kW – 50kW
£2350+
*Subject to supply chain fluctuations
The UK's biggest & most trusted boiler brands
So, all our new boilers include 90 days of homeowner help and support from our friendly staff.
Installation & Heating Maintenance Solutions for the people of Hertfordshire
Read what other locals say about their AVENUE HEATING journey
Warming homes in Watford and Herts since 2017
HERTFORDSHIRE'S MOST REVIEWED BOILER Installation COMPANY
Yes! We also service & repair boilers across Hertfordshire.
At Avenue Heating, we don’t just install boilers, we service and repair them too. We’re your local experts for Vaillant and Worcester Bosch boilers, as well as all other major boiler brands.
Whether you own a high-performance Vaillant ecoTEC, a trusted Worcester Bosch Greenstar, or a different make altogether, our gas engineers know how to keep your heating system running safely and efficiently.
Why an Annual Service Matters? If your boiler is still under its manufacturer’s guarantee, it needs to be serviced annually by a qualified engineer to keep that cover valid. Our team is fully trained to carry out thorough safety and performance checks, helping to prevent breakdowns and extend the life of your boiler.
Fast, Reliable Repairs, if something does go wrong, we’re here to help. From minor faults to urgent breakdowns, our engineers have the experience and know-how to get your heating and hot water back up and running quickly.
We’re based in Watford and proudly serve homes in Radlett, St Albans, and throughout Hertfordshire. With Avenue Heating, you can rely on professional, friendly service and honest advice every time.
Different Boiler Types
Avenue's
Combi Boilers
A Combi boiler provides an unlimited, instantaneous hot water supply, in addition to your central heating needs.
Combi boilers are fantastic for smaller properties, such as flats or small houseshomes, where space is at a premium. A combination boiler is extremely energy efficient and cost-effective as water is only heated when you needit and not heated and stored.
The downside to combination boilers is that when there are two or more taps being used simulaniously, there is a noticeable difference in the flow rate of the hot water as the water comes directly from the mains water supply.
Avenue's
Regular Boilers
This boiler installation only acts as a heat source, either you can use it to heat your radiators or under-floor heating, or you can use it to heat the water in your hot water cylinder.
They are similar to conventional boilers, with the difference being that they contain additional components, such as a central heating pump, pressure relief valve, and expansion vessel.
System boilers, like combination boilers, are installed as part of a “sealed” heating system, meaning, if also fitted with an unvented cylinder, there is no need for any tanks in your loft.
Avenue's
System Boilers
A Conventional boiler installation also acts only as a heat source,as with system boilers, although, they have no additional components in them.
They are sometimes installed in a ‘classic’ type of heating system, where there may be a cylinder, along with pumps to boost water pressure to baths and showers.
These types of boilers are best for older heating systems, where increased pressures used in a ‘sealed’ system may cause issues with leaks etc.
A boiler range for every Watford and Hertfordshire home & family budget!
Worcester Boilers WAI
Greenstar 2000
Supplied and fully installed combi boiler inc flue, control, cleansing & protection.
£2350
*Subject to supply chain fluctuations
Greenstar 4000
Supplied and fully installed combi boiler inc flue, control, cleansing & protection.
£2550
*Subject to supply chain fluctuations
Worcester 8000
Supplied and fully installed combi boiler inc flue, control, cleansing & protection.
£3050
*Subject to supply chain fluctuations
So, all our Worcester boiler installations include 90 days of homeowner help and support from our friendly staff.
Standard Combi boiler replacement starting from*
Worcester Bosch 2000
Worcester Bosch 2000 Combi Boiler
The Worcester Bosch Greenstar 2000 is the brand’s most price-competitive combi boiler. It’s available in outputs of 25 and 30kW, and for those on a tighter budget but who want the assurance of quality that a Worcester Bosch boiler brings, this will be a good option for you!
- 25kW-30kW hot water output
- Suitable for 1 shower
- 6 Year Worcester Guarantee
Property Type
The Worcester Bosch Greenstar 2000 might be a good fit for your apartment or smaller home if you only need hot water for one bathroom. This boiler is popular with first-time homeowners, landlords and buy-to-let property owners. What makes the Worcester Bosch 2000 unique is that it can also be fitted for use with LPG, which would make it a brilliant option for mobile homes or even caravans in holiday parks!
*Supplied and fully installed Combi boiler inc Flue, Honeywell Control, System Cleansing and protection.
List prices are for illustrative purposes only. Fixed-priced quotations will be supplied following a boiler survey. The final quotation may be subject to your unique situation & supply chain fluctuations.
Standard Combi boiler replacement starting from*
Worcester Bosch 4000
Worcester Bosch 4000 Combi Boiler
The Worcester Bosch Greenstar 4000 is a super boiler, typically in terms of build and quality that you’d expect from the Worcester Bosch family. It features a modern new design, with an easy to use full-colour text display. Oh, it’s quiet too!
- 25kW-30kW hot water output
- Suitable for 1 shower
- 10 Year Worcester Guarantee
Property Type
The Worcester Bosch Greenstar 4000 is perfect for small to medium-sized homes with one bathroom. The Worcester 4000 has a wide modulation range to meet all of your heating and hot water needs whilst doing so efficiently for the best use of energy.
*Supplied and fully installed Combi boiler inc Flue, Honeywell Control, System Cleansing and protection.
List prices are for illustrative purposes only. Fixed-priced quotations will be supplied following a boiler survey. The final quotation may be subject to your unique situation & supply chain fluctuations.
Standard Combi boiler replacement starting from*
Worcester Bosch 8000
Worcester Bosch 8000 Combi Boiler
The Worcester Bosch Greenstar 8000 is a stunning, design-led boiler. Whilst it is designed for those with a keen eye on how the boiler will look in the home, you can be confident that this has been achieved without any compromise on quality or performance.
- 30kW-50kW hot water output
- Suitable for larger homes
- 12 Year Worcester Guarantee
Property Type
The Worcester Bosch Greenstar 8000 is available from 30kw up to 50kw, making it a very versatile unit. For a better consideration of this boiler, the 40kw output means this boiler is good for homes of most sizes, especially for those with two bathrooms where plenty of hot water is required simultaneously.
*Supplied and fully installed Combi boiler inc Flue, Honeywell Control, System Cleansing and protection.
List prices are for illustrative purposes only. Fixed-priced quotations will be supplied following a boiler survey. The final quotation may be subject to your unique situation & supply chain fluctuations.
A boiler range for every Watford & Hertfordshire home & family budget!
Vaillant Advanced Boiler Installers
Vaillant EcoFIT
25 / 30 / 35kW
Supplied and fully installed combi boiler inc flue, control, cleansing & protection.
£2450
*Subject to supply chain fluctuations
Vaillant EcoTEC Pro
24 / 28 / 30kW
Supplied and fully installed combi boiler inc flue, control, cleansing & protection.
£2570
*Subject to supply chain fluctuations
Vaillant EcoTEC Plus 2
26 / 32 / 36 / 40kW
Supplied and fully installed combi boiler inc flue, control, cleansing & protection.
£2710
*Subject to supply chain fluctuations
So, all our Vaillant boiler installations include 90 days of homeowner help and support from our friendly staff.
Standard Combi boiler replacement starting from*
Vaillant EcoTec Plus 2
Vaillant EcoTec Plus 2 Combi Boiler
The Vaillant ecoTEC plus is a fantastic choice for homeowners looking for high performance and energy efficiency. Designed for a wide range of property sizes, it’s perfect for medium to larger homes with more demanding heating and hot water needs. With a sleek, modern design and whisper-quiet operation, it fits seamlessly into most homes whether you’re upgrading your existing system or fitting out a new property.
It’s a popular pick for families, professionals, and anyone wanting trusted performance backed by advanced German engineering and up to a 10-year warranty when installed by a Vaillant-accredited engineer.
- 26kW-40kW hot water output
- Suitable for 2-3 shower
- 10 Year Vaillant Guarantee
Property Type
The Vaillant ecoTEC plus is ideal for medium to large-sized homes with one-two bathroom. With its wide modulation range, it adjusts effortlessly to your home’s heating and hot water demands delivering warmth efficiently while helping you make the most of your energy use.
Whether you’re replacing an older system or planning ahead, the ecoTEC plus offers reliable performance, quiet operation, and long-term peace of mind especially when fitted by a Vaillant-accredited installer.
*Supplied and fully installed Combi boiler inc Flue, Honeywell Control, System Cleansing and protection.
List prices are for illustrative purposes only. Fixed-priced quotations will be supplied following a boiler survey. The final quotation may be subject to your unique situation & supply chain fluctuations.
Standard Combi boiler replacement starting from*
Vaillant EcoTec Pro
Vaillant EcoTec Pro Combi Boiler
The Vaillant ecoTEC pro is built for reliable, energy-efficient heating without any fuss. Designed with smaller to medium-sized homes in mind, it’s a fantastic choice if you want all the quality and performance of Vaillant engineering in a straightforward, cost-effective package.
Its compact design means it won’t dominate your space, and it’s quiet enough to fit comfortably in busy areas of your home. The ecoTEC pro combines efficient heating and hot water delivery with easy-to-use controls and smart energy use, helping keep your home warm and your energy bills under control.
With trusted Vaillant build quality inside, the ecoTEC pro delivers reliable performance day after day, the perfect solution if you want dependable heating at an affordable price.
- 24kW-35kW hot water output
- Suitable for small to medium homes
- 10 Year Vaillant Guarantee (upgrade required)
Property Type
The Vaillant ecoTEC pro is ideal for small to medium-sized homes, such as flats or houses with one bathroom and modest hot water needs. Its compact design means it fits neatly into kitchens, cupboards, or utility rooms, making it perfect where space is limited – all without compromising on reliability or performance.
*Supplied and fully installed Combi boiler inc Flue, Honeywell Control, System Cleansing and protection.
List prices are for illustrative purposes only. Fixed-priced quotations will be supplied following a boiler survey. The final quotation may be subject to your unique situation & supply chain fluctuations.
Standard Combi boiler replacement starting from*
Vaillant EcoFit Pure
Vaillant EcoFit Pure Combi Boiler
The Vaillant ecoFIT pure is a sleek, compact boiler that proves you don’t have to compromise on performance to get a clean, modern look. Designed to fit in tight spaces like kitchen cupboards, it’s perfect for homes where space matters without sacrificing efficiency or reliability.
With trusted Vaillant engineering inside, the ecoFIT pure offers great performance, smart energy use, and quiet operation, all wrapped up in a minimalist design that blends effortlessly into your home.
- 25kW-35kW hot water output
- Suitable for medium homes
- 10 Year Vaillaant Guarantee
Property Type
The Vaillant ecoFIT pure is perfect for homes where space is at a premium but performance still matters. Compact enough to fit inside a kitchen cupboard, it’s ideal for smaller properties or flats that need reliable heating and hot water without losing precious space. Despite its size, it delivers efficient, quiet operation and the trusted reliability you’d expect from Vaillant.
*Supplied and fully installed Combi boiler inc Flue, Honeywell Control, System Cleansing and protection.
List prices are for illustrative purposes only. Fixed-priced quotations will be supplied following a boiler survey. The final quotation may be subject to your unique situation & supply chain fluctuations.
HERTFORDSHIRE'S MOST REVIEWED BOILER Installation COMPANY
Yes we also offer Boiler Servicing & Service plans
To maintain your boiler’s warranty or guarantee, it’s important that you keep up with your boiler servicing! Just like the car at your home, an annual service will help keep the engine of your home running smoothly and efficiently to help with the running costs and energy use.
Of course, there is a cost to a boiler service. For some, a pay monthly option’s convenience helps with budgeting. This is why you can pay monthly for your boiler service on our innovative service plan.
See more about our boiler service and service plans on our servicing page!
Avenue's case studies
Our Recent Boiler Projects
Hertfordshire's most reviewed boiler installation company
Understanding Boiler Plus
Changes within building regulations that affect the heating industry are usually intended to improve energy efficiency within our properties. Changes to Building regs Part L in 2018 introduced the “Boiler Plus” requirement that every new Boiler installation must have one of the following four “plus” technologies installed with the new boiler.
The lowest priced option and also most common is a boiler plus level programmable thermostat with load compensation. Load compensation allows the boiler to modulate the flow temperature from the boiler based on the actual room temperature. We usually recommend Honeywell T3R & T6R programable thermostats.
Normally in the form of a programable thermostat that is connected to the internet and provides automation and optimisation of the heating demand. The most common device in this catorgary is the Google Nest Learning thermostat.
An outdoor thermostat that modulates the heating flow temperature based on the outdoor temperature. I.e. helping the boiler run slightly cooler when the weather outside is milder.
There are not many of these systems in use.
Hertfordshire's most reviewed boiler company
Boiler Protection & Understanding Part L
If you would like to arrange your free boiler survey please fill in this short form and one of the team will be in-touch!
Please note the quickest and best way to contact Avenue Heating is via this form.
Get in touch
Avenue Heating
Phone : 020 3137 3333
Avenue Heating Suite Unit 107 186 St Albans Rd Watford WD24 4AS
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Download manufacturer literature
For more information follow the link below to download their Vaillant boiler manufacturer brochures
FAQ
Your most Frequently asked boiler questions
Don’t see your question below? Get in touch using the form below, we’d love to answer any questions you have.
- Call the National Grid UK on 0800 111 999, any time, day or night!
- Extinguish all naked flames and do not smoke or light anything.
- Do not touch any electrical switches, turning on or off.
- Turn the gas off at the meter (generally outside the house).
- Open all doors and windows.
- Get everyone out of the area
- Unusual whistling, banging, or tapping noises.
- Higher than average gas usage indicates the boiler is not performing efficiently.
- The pilot light or flames are orange/yellow in colour, which should normally be blue.
- It will show a high system water pressure instead of continuing at a steady pressure
Boiler installations vary. It depends on the work that needs to be done. If you have a combi boiler and we are installing a new combi boiler in the same place, this will take approx 4-6 hours.
If you are converting from a system boiler to a combi boile, this will take approx 2 days.
If you would like your boiler relocating to a different part of your home, you need to add another 1/2-1 Day onto the work to install the boiler
YES – It is recommended that boilers are serviced annually and you hold a gas safety certificate for your home
- You can catch boiler problems early before they develop and avoid the need for boiler repair
- It is cheaper than replacing your boiler
- It will save money on your energy bills
- You can keep your boiler safe
- Your boiler will stay under the manufacturer warranty
This depends on the type and the make of boiler in which you need. Our expert boiler installation engineers will make an assesment of your home and lifestyle and suggest the right type of boiler for you. you will then have a choice of brands of boiler to choose to suit your budget
What happens when you contact Avenue Heating
Combination Boilers
A Combi boiler provides an unlimited, instantaneous hot water supply, in addition to your central heating needs.
Combi boilers are fantastic for smaller properties, such as flats or small houseshomes, where space is at a premium. A combination boiler is extremely energy efficient and cost-effective as water is only heated when you needit and not heated and stored.
The downside to combination boilers is that when there are two or more taps being used simulaniously, there is a noticeable difference in the flow rate of the hot water as the water comes directly from the mains water supply.
Collect Information
When you contact us about a new gas boiler installation, we will gather as much information as possible and if necessary, one of our experienced heating engineers will visit your home to carry out a full survey at a time that is best for you
Quote
When we are assured that the proposed boiler is suitable for you and your house, we will send you a free, no-obligation quotation.
Installation
When the quote is accepted, we will agree on an installation date and book you in, following which the deposit invoice for the work will be sent to you.
We will usually arrive between 8-9 AM on the day of installation and finish between 3-6 PM. If it is a large installation, we may need to return for a second even third day to complete the ob.
During the work, we will provide regular updates as to what we are doing and any abnormalities or issues we come up against.
Problems
Invariably while carrying out any boiler installation, there is likely to be something that wasn’t accounted for, such as previous poor workmanship or interesting discoveries such as birds and wasps nests! But you can be rest assured, no matter what we find, our gas safe registered engineers have the skill and experience to find a suitable solution to the issue!
Handover
Once the job is complete, we will fully test and commission the boiler and provide you with the completed manufacturers’ benchmark, after talking you through any user controls or other information that you may need to be aware of with your new boiler.
System Boilers
This boiler installation only acts as a heat source, either you can use it to heat your radiators or under-floor heating, or you can use it to heat the water in your hot water cylinder.
They are similar to conventional boilers, with the difference being that they contain additional components, such as a central heating pump, pressure relief valve, and expansion vessel.
System boilers, like combination boilers, are installed as part of a “sealed” heating system, meaning, if also fitted with an unvented cylinder, there is no need for any tanks in your loft.
Conventional Boilers
A Conventional boiler installation also acts only as a heat source,as with system boilers, although, they have no additional components in them.
They are sometimes installed in a ‘classic’ type of heating system, where there may be a cylinder, along with pumps to boost water pressure to baths and showers.
These types of boilers are best for older heating systems, where increased pressures used in a ‘sealed’ system may cause issues with leaks etc.
Hertfordshire's most reviewed boiler company
Understanding Boiler Installations
Now that is a big subject! Thankfully, having installed well over a thousand boilers in the Hertfordshire area, our team is pretty good at explaining boiler installation best practices to the local community. Over the coming months, we will be re-writing our Homeowner’s Guide to Boiler Installation. We originally wrote this guide in 2016, but as with everything, the heating industry has moved on since then. Whilst our marketing team put this together, we want to share the two most significant changes to building regulations in recent years. Those are 2018’s Boiler Plus and 2022’s Part L for energy efficiency.
Choosing a new boiler
When you are ready to have to start thinking about needing a new boiler installation as your boiler repairs have failed. Whether it be due to an emergency break-down and you need a replacement boilerin a hurry, or whether you want to plan a possible future need for a boiler replacement so that you can be sure your heating will be working well during the cooler seasons.
Our heating engineers are here to help guide you into choosing the best new boiler installations for your home.
There are many different factors that you need to take into account when selecting the right boiler for your home, these include:
- Size of your house
- How many people live in your home
- How much water you use
- Any future plans for your home
Brands of boilers
We install all of the top brand boiler manufacturers that are installed in UK. As well as being accredited Vaillant and Viessman installers, our heating engineers also install Worcester, Ideal, Viessmann and Main boilers.
Looking to have a new boiler installed?
You and your home can both benefit from having your boiler replaced and a new boiler installation. Whether your boiler is beyond repair or if you simply need an upgrade, Our heating engineers can help you with a brand new boiler installation.
Our team has come up with what we believe are a few of the main benefits of replacing your boiler, such as:
- Warmer Living
- Can lower your energy bills
- They will be more energy efficient
- less worries of break downs
- Better control of water temperature and heating
- Newer boilers are smaller
- Quieter when running
Why you may need a new boiler
Every boiler needs upgrading at some time, maybe it is too old, no longer working properly, or it may have been condemned.
There are some commonplace reasons for needing a new boiler installation:
- Age - Boilers more than 15 years old often need to be replaced due to the difficulty of maintaining and repairing them
- Efficiency - Boilers below an 'A Efficiency Rating' could be costing you more money, replacing it with one that is more energy efficient can save you money
- Repairs - If you need to repair your boiler frequently, it might be more cost-effective to have a new boiler installation instead of fixing it
- Condemned - Many people purchase properties only to discover problems with the boilers that lead to them being condemned and needing replacing
