Model with long, sleek hair extensions at Simon Warwick Salons, Maida Vale – expertly blended for length, volume, and natural finish using premium methods.
Hair Extensions

Hair Extensions

From £222
2 hrs

Smoother hair. Less effort. Long-lasting refinement.
Our Keratin Treatment at Simon Warwick Salons is a professional smoothing service that calms frizz, reduces volume, and leaves your hair more manageable — all while preserving its natural movement and shine.

What’s Included

The keratin treatment is a semi-permanent smoothing solution that works by infusing protein deep into the hair cuticle. It helps repair surface damage, reduce frizz, and create a smoother, shinier finish that lasts for weeks — all without flattening your natural style.

Your appointment begins with a full consultation to assess your hair type, current condition, and desired outcome. After a professional cleanse, the smoothing formula is applied in sections, then sealed with heat to lock in the results. The process is completed with a finish that leaves hair sleek, soft, and humidity-resistant.

Our stylists use trusted, salon-grade products that are formaldehyde-free and suitable for colour-treated or chemically processed hair. You’ll also receive tailored aftercare advice to maintain your results at home.

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Who It’s For

The keratin treatment is ideal for clients who:

  • Experience frizz, puffiness, or dry ends
  • Spend too long blow-drying or straightening their hair
  • Want hair that feels softer and looks more polished
  • Need a humidity-resistant finish for travel or daily wear

It’s especially popular during warmer months or ahead of holidays, when frizz can become difficult to manage. The result isn’t poker-straight — your hair retains movement and bounce, but with a smoother, silkier texture and less effort required to style.

Duration & Appointment Timing

Appointments usually take 2 to 3 hours, depending on your hair length and thickness. You’ll leave the salon with beautifully smooth, low-maintenance hair and no downtime — many of today’s formulations allow you to wash and style your hair as usual within hours, rather than days.

How Often Should You Book?

Most clients return every 3 to 4 months to maintain smoothness and manageability. With the right at-home care — including sulphate-free shampoo and heat protection — results can last even longer.

For expertly delivered smoothing services by trusted hairdressers London, book your keratin treatment at Simon Warwick Salons. We’ll help your hair look polished, feel healthier, and take less time to manage — day after day.

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Frequently Asked Questions

What type of extensions do you use?
We use premium-quality extensions by Great Lengths and Hair Club—both renowned for natural texture, ethical sourcing, and long-lasting results.
Are extensions suitable for fine or thinning hair?
Yes. We offer bespoke consultations to assess your hair type and goals. Extensions can add volume, length or both—always tailored to your needs.
How long do the extensions last?
With proper care, professional extensions can last up to 3–5 months. Maintenance appointments may be recommended, depending on the system used.
Do I need a consultation first?
Yes. A consultation is required to discuss your desired result, colour match, extension type, and quote. This ensures the perfect blend and a comfortable, secure fit
Will they damage my hair?
When applied and maintained professionally, our extension systems are gentle and non-damaging. We’ll also provide expert aftercare advice to keep your natural hair healthy.
Where is your salon and who do you serve?
Simon Warwick Salons is based in Maida Vale and welcomes clients from Little Venice, St John’s Wood, and Central London. Known for elegant results and premium service, we are a trusted name in hairdressers London-wide.

Available Team Members

These team members perform this service

  • Simon Cohen, founder and principal stylist at Simon Warwick Salons in Maida Vale – expert in precision cutting, colour, and luxury hairdressing.
    Simon Warwick
    Salon Owner
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