Daikin and Mitsubishi Electric dominate UK premium domestic AC. They're closer than the marketing suggests; both deliver 19 dB(A) bedroom-quiet units, SEER ratings above 8, and 5–7 year warranties via accredited installers. The differences are at the edges.
Price and value
Mitsubishi typically lands 5–10% cheaper than Daikin like-for-like in the UK. Both attract the same install labour cost from accredited installers.
Efficiency (SEER / SCOP)
Daikin Perfera: SEER 8.65 / SCOP 5.10. Mitsubishi MSZ-LN: SEER 8.50 / SCOP 5.00. Effectively a tie in real-world use.
Noise
Both flagship bedroom units hit 19 dB(A) on low fan. Daikin's Coanda airflow is slightly better at avoiding direct draft on the bed; Mitsubishi's Plasma Quad Plus filter is the better air-quality option.
Warranty and UK support
Daikin D1+ scheme: 7 years parts when installed by D1 partners. Mitsubishi Diamond Quality Partner: 7 years parts. Both require accredited install; confirm with your installer before deposit.
Verdict
Choose Daikin Perfera if quiet airflow and design matter most. Choose Mitsubishi MSZ-LN if air filtration and slightly lower up-front cost matter more. Either will outlast and out-perform any budget brand.
Daikin vs Mitsubishi; typical UK installed price (2.5kW bedroom split, 2026)
| Daikin Perfera FTXM25R | £2,200 – £2,600 |
| Mitsubishi MSZ-LN25VG | £2,050 – £2,450 |
| Daikin Stylish FTXA25 | £2,400 – £2,800 |
See what installers in your area would actually charge.
Get matched quotesFrequently asked questions
Are Daikin or Mitsubishi parts cheaper?+
Roughly equal. Both have strong UK parts distribution and 24–48 hour turnaround on common spares.
Which lasts longer?+
Both have a 15–20 year design life. Real-world failure rates are within 1–2% of each other based on UK installer feedback.