Why learning with Classgap?

Satisfaction guaranteed

If you're not completely satisfied after your first class, we'll refund your purchase. more info

If you didn't do the lesson, it's cancelled or you are not completely satisfied within 24 hours passed your first lesson, we'll help you find a new tutor or refund your purchase.

Change the date at any moment

You will be able to reschedule the class if you can't assist.

Pay once you've received the lesson

We will make the payment of the lesson when finished more info

You will need to enter your payment details. In the case of individual class bookings the amount will be charged at the time of the class, but in the case of packs the payment is made in advance.


He's from United Kingdom , currently lives in Spain



over 10 years of experience teaching online classes

  • English Elementary/A1-2, Intermediate/B1-2, Advanced/C1, Proficiency/C2
  • French Elementary/A1-2, Intermediate/B1-2, Advanced/C1
  • Spanish Elementary/A1-2, Intermediate/B1-2, Advanced/C1, Proficiency/C2
  • Music Beginner




FrenchFull proficiency


Master/Postgraduate CELTA course


I'm English and Spanish.

Book an online lesson (The calendar displayed shows your local time)

Sergio accepts booking with at least 15 minutes in advance.

hours Monday

About me (pictures, hobbies, extracurricular interests...)

padel golf tennis ski Piano singing reading


Francisco González González de Castejón
6 reviews
La primera toma de contacto muy buena, toda la clase en inglés que viene genial para lanzarse de golpe
Daniel Floren
55 reviews
Sergio es un excelente profesor nativo de inglés. Las clases con él son dinámicas, ágiles y entretenidas, y se aprovecha cada minuto al máximo. Es un profesor muy formal y dispuesto a adaptarse al nivel de cada uno y motivarte para aprender. Además, es muy cercano y amable, y hará que te sientas a gusto a la hora de hablar y expresarte en inglés. En mi caso llevo aproximadamente un mes y medio recibiendo sus clases, y estoy muy contento con mi progeso. Espero poder seguir estudiando con él durante mucho tiempo!
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Frequently Asked Questions

• Can I cancel a booking?

Yes, you can cancel booking up to 8 hours before the lesson starts, indicating the reason for the cancellation. We will study each case personally to carry out the refund.

• How do I pay for the lesson?

At the time you select a lesson or package of hours, you will make the payment through our virtual payment service. You have two options:
- Debit / Credit
- Paypal
Once the payment is settled, we'll send you an e-mail with the booking confirmation.

• Can I modify a booking?

Yes, something unexpected can always happen, so you can change the time or day of the lesson. You can do it from your personal area in "Scheduled lessons" through the option "Change date".

• How does a lesson at Classgap happen?

The class is done through classgap’s virtual classroom. Classgap was developed specifically for educational purposes, including many useful features such as: digital whiteboard, online text editor, webcam, screen sharing and many more.