New boiler installations across St Albans
Gas Safe registered, Viessmann accredited engineers fitting new boilers across St Albans. Fixed quote, all major brands, no call-out fee.
Information on this page last reviewed July 2026.
New boilers in St Albans, fitted properly
Home Comfort Assured install and replace gas boilers across St Albans. We are Watford based, so we are honest that we are not the closest team to you, but we have done real boiler work in St Albans and we are glad to travel for a job worth doing right.
Fitted properly means the boiler is sized to your home, the system is cleaned before the new unit goes on, the controls are set up so you feel the benefit, and everything is tested and left tidy. If you need a service or a repair rather than a new install, that is covered on our St Albans boiler servicing and repair page.
What a new boiler job with us looks like
A clear, no-pressure process from the first call to the day your heating is back on.
1. Survey and advice
We look at your home and how you use your heating and hot water, then talk you through the sensible options. The right sized boiler runs more efficiently than an oversized one.
2. A fixed written quote
A clear, fixed price in writing, with no call-out fee and nothing hidden. We only suggest an upgrade if it genuinely earns its place.
3. A tidy, proper install
A Gas Safe registered engineer fits the boiler, cleans the system, sets up the controls and tests everything, protecting your home as we work.
4. Aftercare and warranty
We register your manufacturer warranty, hand over the paperwork, and back our own work and parts with a one year guarantee.
The boilers we install
We install combi, system and regular boilers, and we fit all the major brands: Worcester Bosch, Vaillant, Ideal, Baxi and ATAG among them. Which one is right for you depends on your water pressure, how many bathrooms you run and how you like your heating to work, and that is what the survey settles.
We are Viessmann accredited engineers, so Viessmann is the brand we most often recommend when a customer asks us to choose, for its efficiency, build quality and the extended warranty route accredited installers can offer. The honest, even-handed comparison lives on our Viessmann boilers page.
Fitted properly, guaranteed
A proper job, worth the trip to St Albans
St Albans has plenty of good local installers, so we do not pretend to be round the corner. What we bring is a genuinely careful install: a system designed around your home so it runs efficiently for years, led by Andrew Millward, 40 plus years in the trade and a Heat Geek Elitist. When we take on a St Albans job, we do it properly.
What you get
- A fixed written quote before any work starts, with no call-out fee
- Gas Safe registered engineers (registration 586325)
- Viessmann accredited, and happy to fit any major brand you prefer
- Your old boiler removed, the system cleaned, and the job left clean and tidy
- A one year guarantee on our work and the parts we supply
A real St Albans job
A boiler replacement in St Albans
A boiler replacement we carried out in St Albans. It is local proof rather than a stock photo, and it is the reason we are happy to quote for St Albans work. You can see more finished jobs in our gallery.
What a new boiler costs
We quote on survey rather than blind. As a rough guide, a straightforward combi replacement in the UK typically falls between £2,000 and £3,500 fitted, while a system boiler with a new cylinder, or a full change of boiler type, usually sits higher. These are typical UK ranges to help you plan, not our price; your fixed quote is confirmed once we have seen the job.
The final figure depends on the boiler you choose, whether the pipework and flue need changing, where the boiler is going, and any controls or upgrades you want.
Boiler brands we install and service
New boiler questions, answered
Do you cover St Albans for boiler installations?
Yes. We install and replace boilers across St Albans and the surrounding area. We have completed real boiler replacement work in St Albans, and we are happy to travel for a job worth doing properly.
Which boilers do you install?
All the major brands, including Worcester Bosch, Vaillant, Ideal, Baxi and ATAG. We are Viessmann accredited and often recommend Viessmann when asked, but we fit whatever suits your home and budget.
How long does a new boiler take?
A straight combi swap is usually a one day job. A full system change or a system boiler with a new cylinder can take two to three days. We give you a realistic timescale with your fixed quote.
Do you also service and repair boilers in St Albans?
Yes. Servicing and repair for St Albans is covered on our dedicated St Albans boiler servicing and repair page, and the same local team handles installs, services and breakdowns.
Related pages
More on boilers, Viessmann and the other work we do around St Albans and Hertfordshire.
Real, named, qualified
The engineers who turn up
Two engineers, both Gas Safe registered under registration 586325. When you book Home Comfort Assured, this is who does the work.
Andrew Millward
Founder and heating engineer
- 40+ years experience
- Heat Geek Elitist
- Viessmann accredited
Andrew has over 40 years in the trade and specialises in fault finding, boiler and heating repairs, and the design of energy efficient systems like heat pumps and underfloor heating.
Andrew on YouTube
Elis Harizi
Director and plumbing & heating engineer
- Plumbing since 2007
- Heat Geek member
- Gas qualified
Elis trained as a plumber in Greece in 2007, moved to England to gain his gas qualifications, and now designs and installs energy efficient heating as a Heat Geek member.
Thinking about a new boiler in St Albans?
Call and speak to a Gas Safe registered engineer, or request a fixed quote. We are glad to travel for a job worth doing properly.