Worcester Bosch Boiler Installation across London & Kent
Worcester Bosch Greenstar boilers fitted by our own Gas Safe engineers across South East London and North West Kent. As a Worcester Bosch Installer, we register every install with Worcester, with guarantees of up to 12 years on selected models. Fixed written quote before any work starts.
Greenstar 1000 from £1,650 (5-year guarantee) · Greenstar 4000 from £2,500 (up to 10 years) · Greenstar 8000+ from £2,650 (up to 12 years) · See all prices →
Gas Safe Registered
• Google - 4.7★
• Trustpilot - Excellent
• Worcester Bosch Installer
• Vaillant Advance Installer
• Free First annual Service & wireless thermostat free where stated on your written quote
Which Worcester Bosch Boiler Is Right for Your Home?
We fit four Worcester Bosch Greenstar ranges. The right one depends on the size of your home, how many showers run at once and where the boiler needs to go.
Before we recommend a model, we check your gas supply, mains water pressure and flow rate, and work out the heat your home needs. You get the model and output in writing on your quote.
The ranges we install:
-
Greenstar 1000: an entry-level combi for flats and smaller homes, with a 5-year guarantee
-
Greenstar 2000: a step up for small to medium homes, with a 7-year guarantee
-
Greenstar 4000: a mid-range choice for medium homes, with up to 10 years
-
Greenstar 8000+: Worcester’s premium range for larger homes, with up to 12 years
Two or more bathrooms in use at the same time? A Worcester system boiler with an unvented cylinder may suit you better. See system boiler & unvented cylinder installation.
Your Worcester Bosch Boiler Guarantee: Up to 12 Years
Greenstar Filter Fitted
Greenstar 2000, 4000 and 8000+ installs get a Worcester Bosch Greenstar system filter, a magnetic filter that catches sludge before it reaches the boiler. Greenstar 1000 installs get a magnetic system filter.
Registered with Worcester Bosch
As a Worcester Bosch Installer, we register your boiler with Worcester. This unlocks the extended guarantee on eligible models.
Your Guarantee Length
Greenstar 8000+: up to 12 years.
Greenstar 4000: up to 10 years.
Greenstar 2000: 7 years.
Greenstar 1000: 5 years.
Your exact length is shown on your quote.
Keep your guarantee valid with an annual service by a Gas Safe engineer. Manufacturer terms apply.
Set Up to Worcester’s Instructions
We commission every boiler to Worcester Bosch’s instructions, complete the Benchmark checklist and notify Building Control through Gas Safe. Nothing is left for you to sort out.
Why Choose GX7 for Your Worcester Bosch Boiler Installation?
Own Team, No Subcontractors
The engineers who survey your home are the team who install it. We are Gas Safe registered (935610).
Fixed Written Quote
Your Worcester Bosch model, output, guarantee length and full price are in writing before any work starts.
Tidy, Planned Work
Dust sheets down, neat copper pipework, your old boiler removed, and the system cleaned and protected before handover.
What’s Included in Every Worcester Bosch Installation
Free Home Survey
We check your gas supply, water pressure, flow rate and heat needs before recommending a Greenstar model.
Sized to Your Home
Greenstar model and output matched to your home, your bathrooms and how much hot water you use.
Old Boiler Removed
Your old boiler taken out and disposed of responsibly.
Controls Set Up
Thermostat and controls fitted, set up and shown to you. Exact controls are listed on your written quote.
System Clean & Inhibitor
Your system cleaned and protected with inhibitor to BS 7593. We only power flush when it’s needed.
Greenstar Filter & Scale Reducer
A Worcester Greenstar system filter (a magnetic filter on the Greenstar 1000), plus a scale reducer on the cold mains.
Commissioning & Notification
Radiators balanced, Benchmark checklist completed and Building Regulations notified through Gas Safe.
Guarantee Registered
We register your boiler with Worcester Bosch, so your guarantee is in place.
Greenstar 1000 fitted from £1,650 with a 5-year guarantee. Your fixed written quote shows the exact model, controls, guarantee and price. See all prices →
How Your Worcester Bosch Installation Works
1
Free Survey
We look at your gas supply, water pressure, flow rate, radiators and the best spot for the boiler and flue.
2
Fixed Written Quote
Your recommended Greenstar model, output, guarantee length and price in writing, with no hidden extras.
3
Installation
Usually 1 day for a like-for-like combi swap, 2–3 days for system boilers or conversions. Any time without heating or hot water is agreed with you first.
4
Commissioning & Handover
Benchmark completed, Building Regulations notified, your boiler registered with Worcester Bosch, and your controls explained.
5
Aftercare
An annual service keeps your Worcester Bosch guarantee valid. We’ll remind you when it’s due.
★★★★★
I'm writing to express my sincere appreciation for Mr. Singh's exceptional work on my new boiler installation. He was incredibly helpful, offering various options and clearly explaining the associated costs.
His work was not only fast but also remarkably clean and tidy, with everything completed to a high standard. I am thoroughly impressed with the amazing job he did.
I would highly recommend him without hesitation for any gas related works.
A Makarov - Google review
What Our Customers Say
★★★★★
I recently used Harmeen for a boiler installation and couldn't be happier and more satisfied with the experience. Everything was handled professionally and communicated clearly. Harmeen arrived exactly at the scheduled time and completed the installation efficiently and neatly.
Also, the first service after installation is free!
Would highly recommend them and they genuinely care about doing a good job.
Ashutosh - Trustpilot review
★★★★★
Harmeen and his team have done an outstanding job relocating my boiler. They were honest, reliable, and demonstrated exceptional professionalism throughout. Their thoroughness, attention to detail, and friendliness made the entire process seamless. I cannot recommend them highly enough and will certainly be using their services again. Thank you, team, for a job well done!
M. F. - Google review
Worcester Bosch Boiler Installation FAQs
Ready for Your New Worcester Bosch Boiler?
Book a free survey with our own Gas Safe engineers and get a fixed written quote for your Greenstar boiler.
Gas Safe Registered
Worcester Bosch Installer
Clear Written Quotations
We carry out combi conversions across South East London and North West Kent, including Grove Park, Lee, Eltham, Blackheath, Bromley, Chislehurst, Elmstead, Bickley, Petts Wood, Orpington, Chelsfield, Keston, Hayes, Beckenham, Sidcup, Sevenoaks, Otford and Westerham.
Book Your Free Worcester Bosch Boiler Survey
Tell us what boiler you have now and how many bathrooms you have. Photos of your boiler, flue and pipework help us give you an accurate quote.
Get a straightforward quotation from our Gas Safe Registered heating engineers.