01Correctly sized
A high-efficiency boiler matched to your home's actual heat demand.
Boilers & central heating
A-rated, correctly sized, fittedclean.
A fixed price in minutes, and no email needed to see it. Worcester Bosch and Vaillant, fitted tidily in a day, warranty registered for you.
Why this matters
A reliable new boiler, a fixed price, and a clean install you don't have to chase
Your boiler is either failing, ageing, or missing entirely. You want the right unit for your home, a fixed price, clean fitting, and the warranty sorted. That is what we do.
What you get
Reliable heat, good controls, and running costs you understand
The right unit for your home, fitted cleanly, with the warranty and controls sorted before we leave.
Swipe
01
02Even, responsive heat
Heating that responds quickly and evenly. No cold spots, no constant thermostat fiddling.
03Registered same day
Gas Safe install, manufacturer warranty registered the same day, tidy pipework throughout.
04First-time systems
Complete central heating designed for the property: radiators, pipework, boiler and controls.
Our approach
Survey-first boiler replacement and full central heating design
01 / 04
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01
Gas Safe engineers, every install
Gas Safe registered, personally certified for the gas work they do. Gas Safe registration 921521, verifiable on the Gas Safe Register.
02
Correct sizing every time
Oversized boilers cycle constantly, wearing out faster and wasting gas. We size based on actual room-by-room heat loss, not square-footage rules of thumb.
03
A Boiler Plus compliant smart control, included
A smart control with automation and optimisation, or weather compensation where the boiler supports it, set up with you at install so you actually use it.
04
A full chemical flush, every time
Every price includes a full chemical flush, cleanse and inhibitor. A deep powerflush (£225) is added only where the system needs it, and never as a default upsell.
The process
How it works
No surprises, no jargon. A clear, documented path from your first call through to handover and the follow-up visit, so you always know what happens next and why.
01
Phone triage
A five-minute call to understand your current setup, what is going wrong, and whether a survey is worth booking. Sometimes the answer is a repair or a service, not a replacement.
02
Home survey
A Gas Safe engineer visits, checks the existing system, tests pressure and flow, reviews flue options, and asks what controls you actually want. Typically an hour on site.
03
Fixed quote, itemised
Within two working days: boiler model, flue, smart control, any itemised extras you choose (such as a deep powerflush or radiator valves), and the total fixed price. Guarantee terms and their conditions explained in plain English.
04
Installation
One to two days for a straight swap, three to five days for first-time central heating. Dust sheets throughout, Gas Safe certificate issued on completion, manufacturer warranty registered before we leave.
05
Handover and aftercare
Walk-through of every control, a named contact for any question afterwards, and a reminder each year when your service is due.
Our signature honesty
Where we won’t fit it
Your home is a strong heat pump candidate and you’re planning to stay 5+ years. A new combi now locks you into another decade of gas. Our Instant Quote tool will flag this automatically, or talk to us on the phone.
Your existing boiler is under 10 years old and just needs a power-flush. Roughly 30% of “replace my boiler” enquiries we see are actually “replace the controls and clean the system” jobs in disguise. We’d rather save you three grand.
The property can’t accommodate the flue routing safely. Very rare, but we won’t cut corners on regulations to fit a boiler.
You’re planning to convert a loft or extend in the next 12 months. A new boiler might end up needing to be moved. Worth a conversation about timing.
In every case, if we say no to your first ask, we’ll say yes to the right alternative.
The figures we stand behind.
01
01
Manufacturer guarantees from 5 to 12 years
Five, seven, ten or twelve years depending on the tier you choose, registered in your name on the day. Manufacturer guarantees depend on registration, the manufacturer's own system filter (fitted in every price) and a yearly service. Some longer terms also depend on installer accreditation, which we confirm in writing with your price.
02
02
A-rated efficiency, properly commissioned
Modern condensing boilers recover heat from flue gases. But efficiency depends on flow temperature and controls. We commission yours to actually achieve its rated figures.
03
03
Smart controls that work from day one
Thermostat paired, zones configured, schedules set up with you, not just left for you to figure out from the app.
04
04
Honest repair-vs-replace advice
If your boiler has another five good years in it, we will tell you. We do not earn commission from selling boilers you do not need.
Independently audited
The certifications behind this work
03 registers held · verifiable with each issuing body
- 02Boiler Plus compliantVerify entry
- 03Benchmark commissionedVerify entry
Straight answers
Frequently asked questions
06 questions · asked on real surveys
Q01 / 06
How do I know if I need a replacement or a repair?
Age (over fifteen years), reliability (more than one breakdown per winter), efficiency (SEDBUK below 85%), parts availability, and safety (any amber or red flags on service) are the key factors. We will never recommend replacement over repair when repair is the better long-term value.
Q01How do I know if I need a replacement or a repair?
Age (over fifteen years), reliability (more than one breakdown per winter), efficiency (SEDBUK below 85%), parts availability, and safety (any amber or red flags on service) are the key factors. We will never recommend replacement over repair when repair is the better long-term value.
Q02Combi, system, or regular: which is right for me?
Combi boilers suit smaller homes with one bathroom. System boilers with a cylinder suit larger homes or properties with high simultaneous hot water demand (two showers running, for example). Regular (heat-only) boilers suit older properties with existing cold water tanks and gravity-fed systems. We design around your actual hot water demand, not a default.
Q03What does first-time central heating cost?
First-time central heating is designed room by room (boiler, pipework, radiators, controls and flue), so we never price it online. A free survey gives you a fixed price, and the price you sign is the price you pay.
Q04Do I need a power-flush?
Usually not. Every price includes a full chemical flush, cleanse and inhibitor, and the manufacturer's own system filter to protect the new boiler. A deep powerflush (£225) is only worth it where a chemical cleanse cannot recover the system, and we tell you before adding it. Power-flushing a clean system is a waste of your money.
Q05How do I pay?
You pay 25% when we confirm your price, and the balance when the boiler is working and you have seen it working. Debit card, credit card or bank transfer. We do not sell credit: the price you see is the whole price.
Q06Should I consider a heat pump instead?
For most homes with a reasonable EPC and some insulation, yes. A heat pump is the lower-cost, lower-carbon choice in the medium term, and the £7,500 BUS grant makes the upfront gap smaller than you might expect. We will tell you honestly whether your property suits one before taking a boiler order. See our heat pump page for details.
Fixed price & paying
Sixty seconds now. A fixed price that holds.
A free survey, booked at a time that suits you, and the two numbers that make the maths work, sorted before you see a price.
Fixed price · No surprise extrasIncludedthe manufacturer's system filter, a Boiler Plus compliant smart control, a full chemical flush and removal of your old boiler, all inside the price.
The price you confirm is the price you pay, the same in London as everywhere else we work. A standard flue up to 1 metre is included, and anything outside the price is written down and approved by you before work starts.
How you pay25% depositwhen we confirm your price, and the balance when the boiler is working and you have seen it working.
Debit card, credit card or bank transfer. We do not sell credit: the price you see is the whole price.
We confirm your price from a few photos before you pay anything. If the confirmed price is higher than your online price, you can walk away having paid nothing.
One price, wherever you live.
Typical installed price · Combi replaced with a combi
From £1,895
A combi boiler replaced with a combi in the same position, on a standard external wall flue, in a home with up to 3 bedrooms, 1 bathroom and 13 radiators. Four tiers: Essential £1,895 (5-year guarantee), Assured £2,195 (7-year guarantee), Advanced £2,695 (10-year guarantee), Signature £3,195 (12-year guarantee). Every price includes the boiler, the manufacturer's own system filter, a full chemical flush, a Boiler Plus compliant smart control, a standard flue up to 1 metre, a carbon monoxide alarm and removal of your old boiler. Manufacturer guarantees depend on registration, the manufacturer's own system filter (fitted in every price) and a yearly service. Some longer terms also depend on installer accreditation, which we confirm in writing with your price.
A free survey is how we turn this range into a fixed price. We'll never ask you to commit before the written plan is in your hands.
What moves this price for your home
What moves the price upWhat holds it at baseWhat brings it down
Driver 01 · tap what matches
Driver 02 · tap what matches
Driver 03 · tap what matches
Driver 04 · tap what matches
OutlookAnswer the rows and we'll sketch where in the range your home is likely to land.
There is no government grant for a gas boiler, and 0% VAT does not apply to it. We are upfront about that. The value is one fixed price, the same everywhere we work. You pay 25% when we confirm your price and the balance when the boiler is working. We do not sell credit.
See how we price →
Updated 17 September 2026 · quarterly
Keep exploring
Before you decide
- What a new boiler costsWhat a fixed price includes, and the extras that can change it.
- Repair or replace your boiler?When a repair is the sensible call, and when it is good money after bad.
- Combi, system or regular?Which boiler type suits your home, and why a cylinder is worth thinking about.
- Get an instant boiler priceA fixed price in a few minutes, with no email needed to see it.
- Home energy grants in 2026What is genuinely available, who qualifies, and how to spot a grant scam.