The Spa at Castleknock Hotel
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The Spa at Castleknock Hotel opened in December 2017. There is also our Express Spa offering luxury manicures, pedicures and makeup.
With products from Elemis, Made for life organics and Bellamienta, the spa offers a range of high quality treatments.
A huge thank you to everyone who joined us for Be Active Day at Tonic Health Club today! It was brilliant to see so many of you getting involved and bringing such great energy to the day! 💙
21/09/2026
Tonight, Castleknock Hotel lights up in purple to mark World Alzheimer’s Day 💜
We are proud to show our support for everyone living with Alzheimer’s and dementia, and for their families, friends, and carers.
18/09/2026
Back to school, back to you 🍂✨
Our Back to School Spa Special is the perfect excuse to take some time for yourself this autumn. Enjoy two relaxing treatments, access to our Relaxation Room & Tonic Health Club and lunch, with the option to add a little extra relaxation with our Dry Float experience.
A little time out, just for you. 🤍
Find out more via the link https://castleknockhotel.onejourney.travel/spa/days/19786
17/09/2026
Give the gift of time to switch off, unwind and enjoy a little well-deserved pampering with our Spa Voucher ✨
A thoughtful gift for someone special - and one they can enjoy in their own time.
Find the perfect Spa Voucher through the link https://www.castleknockhotel.com/vouchers/ ✨
January & February Dates Now Available! 🤩
Experience the calming power of a Sound Bath in our swimming pool, followed by an overnight stay and time to unwind.
Discover the package via the link https://www.castleknockhotel.com/the-spa/sound-and-float-experience/ 🤗
A little behind-the-scenes from the Thinking Factory… 👀
Our Tonic team have been getting to know something new that will soon be making an appearance in the Tonic shop 🤫
Any guesses?
11/09/2026
Autumn is better with the girls 💃
A little spa time, Afternoon Tea, cocktails and plenty of catching up - all wrapped into one overnight Girlie Get Together getaway ✨
Discover the package through the link https://www.castleknockhotel.com/bookings/ #!/accommodation/packages?category=356&sort=2&code=GRLGTTGT 🤗
We’re loving how popular our Sound Baths are, with all sessions fully booked for the rest of the year! 🤍
Who would be interested in joining us for a Sound Bath in January & February? ✨
07/09/2026
Something new has landed at the Spa ✨
Say hello to Spongellé - a little something to make your everyday self-care feel even better. From beautifully scented body buffers to indulgent body care, it’s the perfect addition to your routine 🫧
Now available at our Spa 🤗
04/09/2026
Ease into the new school year with our Back-to-School Tonic Package, your chance to slow down, recharge and enjoy some well-deserved time for yourself ❤
To discover our Autumn Spa Specials, please click the link https://www.castleknockhotel.com/the-spa/the-spa-special-offers/ 🤗
Click here to claim your Sponsored Listing.
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Contact the business
Telephone
Address
Castleknock Hotel, Porterstown Road, Castleknock
Dublin
D15DNR7
Opening Hours
| Monday | 9am - 7pm |
| Tuesday | 9am - 7pm |
| Wednesday | 9am - 7pm |
| Thursday | 9am - 9pm |
| Friday | 9am - 8pm |
| Saturday | 9am - 8pm |
| Sunday | 9am - 7pm |