Skip to content
UK's #1 Underfloor Heating Company - Over 400,000+ Systems Sold!

Act fast – enjoy our BEST prices across the store this festive season ✅

Enjoy our best prices across the store ✅

Days
Hrs
Mins
Secs

UltraTile ProGrout Flexible Grout 3kg

Was £7.00
From Was £7.00
Was £7.00
Now £5.95
From £5.95
Now £5.95
Save 15% Save 15%
in stock, ready to be shipped
in stock, ready to be shipped
in stock, ready to be shipped
UltraTile ProGrout Flexible Grout 3kg
From Was £7.00
Was £7.00
£5.95
From £5.95
Now £5.95
Contact us

Product advice or want to place an order?

Call our product experts 01268 567016

Fast & Reliable Delivery

For delivery on Friday

Order within hrs mins secs

UltraTile ProGrout Flexible Grout 3kg has been designed for areas where movement or vibration is likely. Polymer has been added to the formulation to increase flexibility and to provide a virtually impermeable set. UltraTile ProGrout Flexible is suitable for joint widths up to 20mm. ProGrout Flexible is packaged using the latest plastic packaging technology, offering you greater product protection and prolonged freshness.

  • Designed for use with all tile types
  • ColourShield technology for vibrant durable finishes
  • Ideal for wetrooms, swimming pools and underfloor heating systems
  • Wash down with minimal effort
  • 1-20mm joint thickness
  • 30 – 60 minutes pot life
  • 12 hours hard set
  • Mould resistant
  • Conforms to CG2 WA EN 13888 classification
  • Sizes: 3kg & 10kg
  • Colours: Vintage White, Cream & Grey

Coverage

For a standard size tile of width 400mm and length 300mm with a joint width of 6mm and a joint depth of 5mm - 1 * 3kg bag will cover approx 10m2 of tiling.

Product code: FLEXIGROUTWHITE
Packaging 3kg
Standard Conformities CG2, EN13888
Initial Drying time 10-15 min (dependent on temperature)
Pot Life 60 min (dependent on temperature)
Set Time 24 hours
Application Thickness 1-20mm
Protein Free Yes
Storage This product must be stored in unopened bags, clear of the ground in cool dry conditions and protected from excessive drafts.
Shelf Life Unopened bags: 12 months in cool, dry conditions above 5°C and below 30°C.
Frequently bought with
  • Was £7.00
    Was £7.00
    Was £7.00
    Now £5.95
    £5.95
    Now £5.95
  • Was
    £15.59
    £15.59
    Now £15.59
  • Total price
    £21.54
    Our reviews speak for themselves!

    Let our experts help you

    Product Question? Need help placing an order?

    Our customer support is available Monday to Friday 7am-6pm.

    Call us on 01268 567 016
    Email sales@theunderfloorheatingstore.com

    Reach out to our expert team
    Free delivery on all orders

    At The Underfloor Heating Store, we strive to make every step of your order as easy and convenient as possible, from finding the right underfloor heating setup to best suit you to taking delivery of your system the very next day.

    We're proud to offer a range of delivery options to suit you, including free delivery on all orders over £50 or next working day delivery for a fixed price of £9.99.

    • 2-3 working days delivery, order over £50 - FREE (£5.99 if under £50)
    • Next working day - £9.99 (Order before 4pm Monday - Friday)
    • Next working day before 12 noon - £19.99 (Order before 4pm Monday - Friday)
    • Saturday delivery - £29.99 (Order before 4pm Friday)
    • Free collection from our Basildon warehouse in Essex, learn more about Click & Collect

    Explore our full delivery policy

    30 days returns policy

    At The Underfloor Heating Store, our customers have 30 days to upgrade, replace or refund their orders.

    Returns

    At The Underfloor Heating Store, we want to ensure you are happy with every purchase you make. If you have any issues with your chosen product, whether damaged, faulty or simply an unwanted item, you can simply return what you bought for a refund. Learn more.

    Replacements

    We take great care in the delivery of all of our products, however, in the event of your delivery arriving damaged or if you notice a manufacturing fault of any kind within 48 hours of delivery, you're within your rights to a replacement. Learn more.

    Upgrades

    Within 14 days of purchasing from us, you are eligible to upgrade if you deem you want something a little better. Simply send it back to us brand new and we'll happily assist you with an upgrade to your order. Learn more.

    Lifetime warranty

    At The Underfloor Heating Store, we are committed to providing our customers with high-quality products and outstanding customer service. That's why we offer a comprehensive warranty on all of our underfloor heating products, with a lifetime warranty for our ProWarm range of products.

    Our warranties are designed to give you peace of mind and ensure that your underfloor heating system operates reliably for years to come.

    Find out more

    We'll beat any price

    At The Underfloor Heating Store, our main priority is customer satisfaction. To cement our commitment to this, we are proud to offer our Underfloor Heating Price Match Promise. If you find a lower price on an identical product anywhere else, we will match it – guaranteed!

    Discover our promise