Quick reference — Aberdeen 2026 prices
These figures are typical Aberdeen install prices in mid-2026, all fitted (boiler, flue, controls, system flush where needed, removal of the old unit, labour). They assume a standard like-for-like swap, accessible boiler position, no major pipe-runs and a system in reasonable condition. Bespoke quotes always sit a bit above or below depending on specifics.
- Worcester Bosch Greenstar 30Ri combi — £2,200 to £2,700 fitted
- Worcester Bosch 8000 Style combi — £2,700 to £3,400 fitted
- Vaillant ecoTEC plus 832 — £2,200 to £2,800 fitted
- Vaillant ecoFIT pure 825 — £1,950 to £2,400 fitted
- Ideal Logic Max C30 — £1,800 to £2,300 fitted
- Baxi 800 Combi 2 — £1,900 to £2,400 fitted
- Viessmann Vitodens 100-W — £2,300 to £2,900 fitted
- Power flush of existing system — £400 to £600 add-on where needed
- System-to-combi conversion (cylinder removal, new flue route) — £500 to £1,000 add-on
What changes the price
Six factors move the final price more than any others. Understanding them helps you assess any quote you're given.
- Brand and warranty length — Worcester and Vaillant cost more partly because their 10-12 year warranties are more comprehensive than mid-market alternatives
- Boiler output (kW) — a 24-30kW combi is the standard for a typical Aberdeen home; 35-40kW for larger properties or homes with two bathrooms running simultaneously
- Conversion type — like-for-like swap is cheapest, system-to-combi conversion is most expensive because of cylinder removal and additional pipework
- Power flush — needed when the existing system has sludge build-up; adds £400-£600 but protects the new boiler warranty
- Flue route — a straightforward horizontal flue is included in standard quotes; a vertical flue through the roof or a longer run with extensions adds £150-£400
- Controls — basic dial thermostat is included; smart heating controls (Hive, Nest, Tado, Vaillant vSMART) add £150-£350 supply-and-fit
What our quote actually includes
A proper Aberdeen install quote should never be ambiguous. The Belmont quote covers every line item up front in writing, so you know exactly what you're paying for:
- The boiler itself, brand and model specified
- Flue kit (horizontal as standard; longer runs or vertical priced as add-ons)
- Controls (thermostat, programmer or smart controls if specified)
- Magnetic system filter (Adey MagnaClean or similar — non-negotiable for warranty)
- System flush — power flush if needed, chemical flush otherwise
- Removal of the old boiler and recycling
- Building Notification (Gas Safe registration of the new appliance)
- Manufacturer warranty registration in your name
- Commissioning, combustion analysis, benchmark certificate
- Labour for all of the above
Repair vs replace — the maths
If your existing boiler is past year ten and you've just had a £400+ repair bill, the maths usually favours replacement. A boiler in its second decade tends to need increasingly frequent and increasingly expensive interventions, and modern condensing combis run roughly 15-20% more efficiently than 15-year-old units — that's around £150-£250 a year off the gas bill for a typical Aberdeen home. By the time you've spent £800-£1,200 on repairs over two years, you're not far off the cost of a new install with another decade of warranty cover.
Finance options
Most new boiler installs in Aberdeen are paid by bank transfer or card on completion. Finance is increasingly common for higher-spec installs — typical 0% APR options spread the cost over 24 to 36 months, and longer interest-bearing terms (4-5 years at around 10% APR) bring monthly payments down further. Specific finance options through providers like Novuna or TradeHelp depend on the boiler choice and the customer's circumstances; we'll talk through what's available when we quote.
Beware of suspiciously cheap quotes
A new combi quoted under £1,500 fitted in Aberdeen in 2026 is a warning sign. Either the engineer isn't Gas Safe registered, isn't fitting a magnetic filter (voiding the warranty), isn't doing a system flush (voiding the warranty differently), isn't registering Building Notification (a legal requirement), or is using a cheaper boiler with a shorter warranty than they're claiming. Cheap installs frequently cost more in year three than a proper install would have over the boiler's full lifetime.
Need this done in Aberdeen?
Ring Belmont. Gas Safe registered, no call-out charge, we answer the phone first ring.