NORTH LONDON, HERTFORDSHIRE & BEDFORDSHIRE
Boiler Installation in Islington
A fixed price for the new boiler, settled before anyone touches the old one, in Islington’s terraces, converted flats and estates. Flues designed for the building, a scale reducer as standard because Thames Water needs one, and the lease and the conservation area checked first. Swaps start at £2,375 + VAT (£2,850 including VAT). Call 01462 506 374.
BOILER INSTALLATION IN ISLINGTON
In Islington the flue decides where the boiler lives
In a house with a kitchen on an outside wall, a boiler swap is a boiler swap. Islington is the most densely built borough in England, and a large share of its homes are flats cut out of Georgian and Victorian terraces, so the boiler is often in a cupboard in the middle of the plan with no outside wall in reach. The job becomes the flue route: how far it can run, where it can terminate legally, whether it needs plume management so it is not steaming into the lightwell next door, and whether the lease or the conservation area has a view.
We survey that first and put a fixed price in writing. Gas Safe registered under 956889. Manufacturer cover runs up to 12 years depending on the boiler, and we guarantee our own labour for 12 months.
Combi, system or regular, and which Islington homes want which
Combi for the converted flats and the smaller terraces with one bathroom, which is most of the borough. No cylinder, no tank, hot water on demand.
System boiler and unvented cylinder for the whole houses of Barnsbury, Canonbury and Highbury that have a family bathroom and two en suites, where a combi would leave someone cold.
Regular boiler kept where the house already has tanks and sound pipework. We do not rip out a system that works to sell a conversion.
Air source heat pump where the house is insulated and there is room outside. £7,500 from the Boiler Upgrade Scheme, and a straight answer if your home is not ready.
Conservation areas, listed streets and the outside of the building
Islington has 42 conservation areas and about 4,500 listed buildings. Barnsbury, Canonbury and Highbury Fields have been conservation areas since 1969, and Article 4 directions in parts of the borough remove the usual permitted development rights for changes to the outside. A boiler inside the house is not the council’s business. A new flue terminal on a listed building or on a street elevation can be.
We keep terminals to rear elevations wherever the route allows, and where consent is needed we say so on the quote rather than on the day.
Over 200
mg/l is where Part L says a combi’s feed water should be treated for scale
Thames Water, and it is hard
Thames Water is Islington’s only supplier and its London water is hard, in the 260 to 320 mg/l range. Scale on the plate heat exchanger is what shortens a combi’s life here, so a scale reducer is on every combi quote as standard, and an annual service is when we catch it early.
Get a fixed price before we start
Call and talk to an engineer, or send us the details and we will come back to you with a price.
Three visits, one of them long
The survey
We count outlets, time the mains into a bucket, trace the gas supply, walk the flue route to the nearest legal terminal, find a drain for the condensate and read what the lease says about the outside. Then the price is fixed and written down, permit included.
The install
A combi swap is a day: the old one off, the system cleaned through, the new one on, the flue and plume kit run, filter and scale reducer in, inhibitor dosed, then a flue gas analyser and the controls set up with you there. A cylinder or a conversion is two.
The paperwork
Guarantee registered in your name, Building Control told through Gas Safe, Benchmark book completed and left by the boiler. Nothing for you to chase.
Islington parking is planned, not hoped for. The borough runs 24 separate zones with their own hours, a tradesperson permit is £33.30 a day, a bay suspension is £320 for the first day and needs 14 days’ notice, and a skip licence is £127 a month. We book it, we price it into the quote and we show it as a line, so nothing appears on the invoice that was not on the quote.
Islington boiler prices
Like for like combi swaps begin at £2,375 + VAT (£2,850 including VAT), and that already covers the clean, the filter, the scale reducer, the flue and the registration. What adds to it in Islington is the building: a flue that has to travel through a converted terrace, plume management into a lightwell, a conversion from tanks, or a bay suspension on a Barnsbury street. Each is a line you can see, and the total is fixed before we start.
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Rated 4.9 on Google by the people we work for
Why choose Vantage
Rated 4.9 on Google from more than 700 reviews across Google, Checkatrade and Trustatrader. Qualified, accredited engineers, a fixed price before any work begins and a labour guarantee on every job, from an established local company with an office team you can actually reach. No job too small.
Gas Safe registered
Company registration 956889. Every gas engineer carries their own Gas Safe ID card, and you can ask to see it.
Refcom F-Gas certified
REF1024550. Legally required for air conditioning installation and servicing, and we hold it.
CHAS Elite accredited
Veriforce CHAS assessed for health and safety, which is why commercial clients and landlords use us.
City & Guilds and BPEC qualified
Qualified, insured engineers on every job. No subcontracted strangers.
700+ reviews, 4.9 on Google
Across Google, Checkatrade and Trustatrader. Read them before you book.
Labour guarantee on every job
12 months on repairs, installations and everything else. Two years on a full bathroom refit. If anything we did develops a fault, we come back and put it right.
Fixed price before we start
The price is agreed with you before any work begins. No hidden extras on the invoice.
24/7, answered by a person
The emergency line is answered every day of the year by someone who can send an engineer, not a call centre.
Fully stocked vans
Five vans carrying the parts that fail most often, so most jobs are fixed on the first visit.
An office team behind every job
An established local business with multiple engineers and a dedicated office team to keep you informed.
Vaillant myREWARDS and Ideal Max accredited
Accredited installer status means extended manufacturer warranties on the boilers we fit.
Emergency response within the hour
Our average response to an emergency call is under an hour across Hertfordshire, Bedfordshire and Cambridgeshire.
Trusted & Accredited Professionals
Why choose Vantage
Because in the most densely built borough in England the flue is the job, and we design it before we price it. Gas Safe registered under 956889. Leases read, terminals kept off listed fronts, the water treated because Thames Water’s supply demands it, manufacturer cover up to 12 years and a year on our own labour. Company number 13248357, VAT number 392 8946 37.
Where we install boilers in Islington
Every part of the borough, including:
BarnsburyCanonburyHighburyIslington villageUpper StreetAngelClerkenwellHollowayTufnell ParkArchwayFinsbury ParkHighbury FieldsCanonbury SquareGibson SquareArlington Square
Around Islington
We work across the N1, N4, N5, N7 and N19 postcodes and the EC1 edge of the borough, and into the neighbouring boroughs:
CamdenHackneyHaringeyHighgateKentish TownStoke Newington
The wider area is on our North London page.
Frequently asked questions
How much does a new boiler cost in Islington?
Combi swaps from £2,375 + VAT, £2,850 with VAT, fitted with the clean, the filter, the scale reducer, the flue and the registration included. An awkward flue through a converted flat, a conversion from tanks or a bay suspension are added as lines you can see, and the total is fixed before we start.
Where can the flue go on a terrace with the boiler in the middle of the house?
A flue can run several metres and turn corners on its way to an outside wall, and it can terminate on a rear elevation or a set back roof. What it cannot do is discharge too close to a window, into a neighbour’s lightwell without plume management, or onto a street elevation in a conservation area without a conversation with the council. We design the route at survey.
The flat is leasehold. Whose permission do I need?
The freeholder’s or the managing agent’s for anything on the outside, which usually means the flue terminal. Most leases allow a like for like replacement in the same position without fuss. We tell you what the lease needs before you commit.
Which boilers do you fit in Islington?
Ideal Logic and Logic Max for the run of combi swaps in flats and terraces, Vaillant ecoTEC where a system boiler and cylinder are serving two or three bathrooms. Manufacturer guarantees run up to 12 years depending on the model and on an annual service, and we register them for you.
What is the scale reducer for?
Keeping the combi alive. Thames Water’s Islington supply is hard to very hard, and the plate heat exchanger inside a combi scales up in water like that until the boiler fails. Part L guidance says treat the feed water above 200 mg/l, so an inline reducer is fitted with every combi we install here.
Could an Islington terrace run on a heat pump instead?
A whole house with a garden for the outdoor unit, reasonable insulation and radiators sized for lower flow temperatures can, and the Boiler Upgrade Scheme pays £7,500 towards it. A converted flat with no outside space cannot, yet. We install both, so the advice is not steered by what we sell.
What cover comes with the boiler?
The manufacturer’s guarantee, up to 12 years depending on the model and kept alive by an annual service, registered by us in your name, and 12 months on our own workmanship. Building Control is notified through Gas Safe so the compliance certificate arrives on its own.
Get a fixed price for your new boiler
Call 01462 506 374 or use the quote form. We will survey the flat or the house, design the flue and put an itemised fixed price in writing.
Related pages
Full refits, en suites and wet rooms, 12 month guarantee
Wall mounted splits and multi room systems, 0% VAT
The services we bring to Islington homes
Twenty-five finished rooms, photographed
Every rate, in full, including VAT