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Ronseal Thompson's Emergency Roof Repair Mastic 750ml Ronseal - RockBottom Nothampton
Ronseal Thompson's Emergency Roof Repair Mastic 750ml Ronseal - RockBottom Nothampton
Ronseal Thompson's Emergency Roof Repair Mastic 750ml Ronseal - RockBottom Nothampton
Ronseal Thompson's Emergency Roof Repair Mastic 750ml Ronseal - RockBottom Nothampton
Ronseal Thompson's Emergency Roof Repair Mastic 750ml Ronseal - RockBottom Nothampton
Ronseal Thompson's Emergency Roof Repair Mastic 750ml Ronseal - RockBottom Nothampton

Ronseal Thompson's Emergency Roof Repair Mastic 750ml

by Ronseal
SKU RSLTERRM750-TOOLBANK
£17.49 - £17.49
£17.49
£17.49 - £17.49
£17.49
Availability:
in stock, ready to be shipped

Est Delivery 3 - 7 Working Day

Shipping information


We work hard to get your order out quickly and securely.

  • Fast Dispatch – Orders are processed promptly once placed.
  • Trusted Couriers – We use reliable delivery partners.
  • Clear Costs – Shipping is calculated at checkout, based on size and weight.
  • Peace of Mind – We’ll keep you updated every step of the way.
Returns & warranty
  • 28 Days to Return – If it’s not right, just bring it back in its original condition.
  • Quick Refunds – Once we’ve checked your return, we’ll refund you promptly.
  • Clear & Fair – Some items (like cut-to-size or opened packaging) can’t be returned, but we’ll always let you know upfront.

This Thompson's Emergency Roof Repair Mastic has been developed from technology used on North Sea oil rigs, Thompson's Emergency Roof Repair Mastic is a trowel applied mastic with the ability to adhere to virtually any roofing material even underwater. With added fibres and a high solids content, Thompson's Emergency Roof Repair Mastic has been developed for filling, plugging and repairing cracks and splits, targeting leaks at the source of the problem.

Thompson's Emergency Roof Repair Mastic is an all-weather solution, its hydrophobic formula actively repels and displaces water during and after application instantly forming a watertight seal that does not require time to cure before it delivers full weatherproofing protection.

It will adhere to virtually any material even under water and is suitable for use on flashings, gutters, roof lights and valleys.

Coverage: 0.17m² per litre
Size: 750ml
Colour: Black

🔨 Trade Prices for Everyone

Why pay more? We keep our prices rock-bottom so whether you’re a trade professional or DIYer, you always get the best deal.

🏠 Local & Independent


We’re Northampton’s trusted family-run store, supporting local people with great products and honest service.

🚚 Easy Pickup or Local Delivery

Order online and collect in-store, or get heavy items like blocks and cement delivered straight to your site.

👍 Friendly, Helpful Service

Our staff know their stuff — whether it’s building materials, DIY or garden, we’re here to help you get the job done.

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