Cost of Boiler Replacement in Gillingham (2026)
Gillingham quotes for boiler replacement are landing between £1,835 and £3,570 per boiler installed at the moment. Most jobs take 1–2 days. The three things that move the price most around Kent are boiler make and model (worcester bosch, vaillant, ideal); combi vs system vs regular boiler choice; whether the flue and pipework need relocating.
About boiler replacement in Gillingham
Gillingham is a medium town of around 104,000 in Kent. The housing is mostly period cottages, Edwardian villas and 1930s semi-detached housing alongside newer commuter developments. That matters: older properties usually mean more pipework, rewiring and retrofit surprises, while newer builds in districts like ME7, ME8 tend to be quicker jobs with standardised fittings. Local trade prices sit a little above the UK average, which tracks with Kent labour and material costs.
A lot of South East firms work both London and local jobs. Rates usually track London with a small discount, so you're rarely getting a bargain. Peak season runs May to September and good tradespeople can be three to four weeks out. Out of season is the time to price round.
Heating is a regulated trade. Gas Safe for anything gas, OFTEC for oil, HETAS for wood burners and stoves, MCS for heat pumps. The bulk of the price is the engineer's time, roughly £300 to £500 a day in 2025, plus the appliance. A summer quote on the same job is usually 10 to 15 percent less than a winter emergency one, so don't leave an ageing boiler until October.
Boiler Replacement cost breakdown in Gillingham
Like-for-like combi boiler swap in the same position, no pipework changes
New boiler with flue relocation, magnetic filter and smart thermostat
Conversion from system to combi, new pipework, power flush included
What affects the price of boiler replacement in Gillingham?
- Boiler make and model (Worcester Bosch, Vaillant, Ideal)
- Combi vs system vs regular boiler choice
- Whether the flue and pipework need relocating
- System power flush if the existing radiators are heavily sludged
- Gas Safe engineer day rates in your area
- Whether a magnetic filter and smart thermostat are included
Gillingham vs the UK average
Gillingham sits in the heating & boilers market at a cost multiplier of 1.02× the UK national average. That puts Gillingham boiler replacement prices at £1,835–£3,570 versus the UK average of £1,800–£3,500 per boiler installed.
Boiler Replacement cost calculator — Gillingham
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What's typically included in a boiler replacement quote
- Supply of the new boiler unit
- Removal and safe disposal of the old boiler
- Gas Safe certification (CP12)
- Building Regulations notification
- Manufacturer warranty registration (typically 7–10 years)
- System commissioning and homeowner handover
Frequently asked questions
How much does boiler replacement cost in Gillingham?
Budget £1,835 to £3,570 per boiler installed for boiler replacement in Gillingham. Prices here are around 2% more expensive than the UK average. What moves a quote inside that range is mostly heating contractor day rates in Kent and the specific material list for your job.
How long does boiler replacement take in Gillingham?
A straightforward boiler replacement job in Gillingham runs to 1–2 days. You can lose days to things outside the contractor's control — parts on backorder, awkward access, or a firm slotting your job around existing bookings. Ask for a start date and expected finish up front.
What's included in the price of boiler replacement in Gillingham?
A proper boiler replacement quote in Gillingham should cover: Supply of the new boiler unit; Removal and safe disposal of the old boiler; Gas Safe certification (CP12); Building Regulations notification; Manufacturer warranty registration (typically 7–10 years); System commissioning and homeowner handover. If any of those aren't itemised on your quote, push back and ask. A written guarantee with a clear warranty period is reasonable to expect on this kind of work.
Is boiler replacement cheaper in Gillingham than the UK average?
Boiler Replacement in Gillingham runs around 2% more expensive than the UK average. The UK-wide benchmark for this job is £1,800 to £3,500 per boiler installed; Gillingham quotes tend to land between £1,835 and £3,570. Handy to know what the average actually looks like before you price round.
Do I need planning permission for boiler replacement in Gillingham?
No planning permission is needed for a straight boiler replacement. Gas Safe and Building Regulations Part L compliance are both mandatory. If the property sits in a conservation area or is listed, ring Kent Council before you book anything in. It's a free call and saves a world of grief later.
See all boiler replacement prices across the UK or browse all tradespeople costs in Gillingham.