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New Boilers

New Boiler in Andover

Gas Safe-registered boiler replacement quotes for Leeds movers, from 24kW combis to system boilers with cylinders.

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New Boiler Quotes for Andover Homes

Andover boilers work hard, from the town centre conservation area to the later estates at East Anton and Picket Twenty. Our Gas Safe-registered installers quote across Worcester Bosch, Vaillant, Ideal, Baxi and Viessmann, then book fitting dates that fit your move so you are not left waiting for heat after the keys change hands.

From a flat in SP10 to a larger house near Abbotts Ann, we size the boiler around hot-water demand, flue route and incoming mains pressure. If the old boiler sits in a cramped cupboard, a loft space or beside an ageing cylinder, we can price a like-for-like swap or a move to a combi, system or conventional setup.

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Andover area snapshot

52,000

Population

1,061

East Anton homes

534

Picket Twenty homes

Picket Piece homes

2,500+

Housing land proposed around Andover

70,400

Jobs in Test Valley

£3.4 billion

Test Valley economy

Flood defences below standard

Using listing data from home.co.uk and property data from homedata.co.uk

When to Replace a Boiler

A boiler over 12-15 years old is usually on borrowed time. Parts wear down, heat exchangers lose efficiency and repair calls become more frequent, which is why many buyers in Andover look at the boiler age as soon as they see the kitchen and bathroom. In older homes around London Road and the town centre conservation area, a tired boiler can be the item that tips a move from simple repair into full replacement.

Modern condensing boilers can run at 90%+ efficiency, but only when the system is clean and the controls are set up properly. If your home in SP11 has a boiler that keeps dropping pressure, taking ages to fire up or throwing faults after every cold snap, replacement can be the better spend than another short-term repair. A magnetic filter and a system flush help new boilers stay cleaner for longer, which matters in homes that have had the same pipework for years.

Warranty length gives a useful clue about build quality. Five years is still standard on Ideal and Baxi, Vaillant often sits at 7-10 years, while Worcester Bosch and Viessmann can reach 10-12 years on certain ranges. If you are replacing a boiler in a house near Portway Business Park or a terrace off Winchester Street, a longer warranty can be worth asking for because the install date starts the cover clock straight away.

Frequent faults or reset warnings
Rising gas use without more heating
Pressure loss or leaks at the boiler
Loud kettling, banging or fan noise

Installed boiler prices in Andover

24kW combi £1,895

30kW combi £2,195

35kW combi £2,495

System boiler + new cylinder £2,995

Conventional swap £2,695

Indicative supplied and fitted prices for standard installations.

Combi vs System vs Conventional

A combi boiler suits a smaller property because it heats water on demand and does not need a hot-water tank. That works well in a flat in SP10 or a small house near Andover College, but the flow rate still depends on the incoming cold-water supply, so weak mains pressure will hold it back no matter how large the boiler badge looks.

A system boiler keeps a cylinder, which helps in larger homes around East Anton or Picket Twenty where two bathrooms may be used close together. Conventional boilers use a loft tank and header tank as well, so they remain useful in bigger older houses in the town centre conservation area or in village homes around Abbotts Ann where the existing layout already suits that setup.

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Popular boiler brands and warranty terms

Brand	Typical output	Warranty
Worcester Bosch	24kW to 35kW	10-12 years on certain ranges
Vaillant	25kW to 35kW	7-10 years
Ideal	24kW to 35kW	5 years standard
Baxi	24kW to 35kW	5 years standard
Viessmann	26kW to 35kW	10-12 years on certain ranges

Getting a New Boiler Installed

Home survey

We visit the property, check the current boiler, flue, pipework, cylinder and controls, then confirm what is practical for the house you are buying or already living in around Andover.

Fixed-price quote

Our team prices the job after the survey, so you can see the difference between a like-for-like swap, a combi change or a system boiler with a cylinder before you decide.

Install date

We book a fitting slot that works with your move. In busy winter weeks, especially from November to February, engineer availability tightens, so earlier booking helps.

1-day install

Most like-for-like swaps are completed in 1 day. A relocation or conversion usually takes 1.5-2 days, especially where pipework, flue routing or a cylinder change is needed.

Commissioning and registration

Our Gas Safe-registered engineers commission the boiler, set the controls and register the installation, with the paperwork sent through within 30 days.

Try to fit the boiler swap into the first 30 days

The boiler replacement is easier to organise before boxes are unpacked. Manufacturer warranty registration starts from the install date, so if you are moving into a house near Weyhill Road or into the town centre, getting the swap done in the first 30 days keeps the cover moving from day one.

Local Boiler Considerations in Andover

The town centre conservation area and the Grade II listed buildings around Andover can change how a boiler swap is handled. In older streets off London Road, flue routing through an external wall may need more thought, and listed-building consent can matter if the replacement changes the fabric of the building. That is one reason our installers check the route before the quote is finalised.

The ground under Andover is not always simple either. The Chalk Group can bring shrink-swell and subsidence risk, while groundwater flooding has affected villages such as Appleshaw, Hatherden, Penton Mewsey, Redenham, Weyhill Bottom, Kimpton, Amport and Monxton. If a boiler needs a new condensate route or a flue position near an external wall, we look at access and ground conditions before the drill comes out.

Hot-water flow on a combi depends on the cold-water mains, not just the boiler size. In properties around Anna Valley or parts of SP11 with lower pressure, a high-output combi may still feel slow at the tap, so a system boiler with a cylinder can be the better fit. We also check for limescale risk, because hard water can shorten the life of a combi heat exchanger and a magnetic filter is a sensible add-on.

Flue route and wall access
Condensate discharge point
Incoming mains flow rate
Space for a cylinder or loft tank

Add-ons Worth Considering

A magnetic filter is a smart add-on because it catches rust and debris before they reach the new boiler. That matters in older Andover houses, especially where pipework has been patched over time in the town centre or in homes that have seen several heating upgrades already.

A smart thermostat helps when you are settling into a new place near Portway Business Park or juggling work and unpacking. A full system flush before install clears sludge from the pipes, while an extended warranty can be worth asking about if the property is in SP10 and you want the new boiler protected for longer.

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Frequently Asked Questions

Do I need a Gas Safe-registered engineer to fit a boiler?

Yes. It is the law, and every boiler install in Andover, from the conservation area to East Anton, must be carried out by a Gas Safe-registered engineer. Our team also registers the installation through the proper route within 30 days.

How long does a new boiler installation take?

A like-for-like swap usually takes 1 day. If the boiler is being moved, or you are changing from a system to a combi or conventional setup, allow 1.5-2 days, especially in older houses around Abbotts Ann or the town centre where the pipework can be less straightforward.

Can I move my boiler to a new location?

Yes, but the new spot has to work for the flue, condensate pipe and gas run. Moving a boiler in a house near Picket Twenty or from a loft in an older SP10 property usually adds time, so we survey first and confirm the route before any work is booked.

Will I need a new flue?

Sometimes, yes. If the new boiler model needs a different flue size or the wall position changes, we may need to fit a new one, but we do not recommend changing a compliant flue just for the sake of it. In a listed building or a property in the Andover conservation area, the flue position can be a key part of the decision.

What happens to the hot-water cylinder?

If you switch to a combi, the cylinder usually comes out. If you choose a system boiler, the cylinder stays in place or is replaced, which works well in larger homes around East Anton where several bathrooms may be used close together.

Can I get an ECO4 boiler grant?

Possibly, if the household qualifies for the scheme and the property has an EPC rating of E, F or G. That can be relevant in older Andover homes where the heating system is tired, especially if someone in the household receives Universal Credit, Pension Credit, ESA or JSA.

How long is the warranty on a new boiler?

It depends on the brand and range. Ideal and Baxi are usually 5 years standard, Vaillant often offers 7-10 years, and Worcester Bosch or Viessmann can reach 10-12 years on certain models. The warranty starts from the install date, so booking soon after a move in SP11 can keep the cover timeline neat.