Advertising Disclosure Exterior Caulk Comparison - August 2025
5 Best Exterior Caulk In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
Advertising Disclosure
| 1 Best Choice  9.8Exceptional | 2 Best Value  9.7Exceptional | 3  9.6Exceptional | 4  9.4Excellent | 5  9.3Excellent |
| View DealOn Amazon | View DealOn Amazon | View DealOn Amazon | View DealOn Amazon | View DealOn Amazon |
ModelEverbuild Caulk Once Premium Quality Acrylic Caulk – Highly Flexible – Fast Drying – White – 295ml | Model UniBond 2078170 Outdoor Window and Door Frame Sealant, White Outdoor Sealant, Durable Weatherproof Door and Window Sealant, Cartridge | Model SX White Rainproof Exterior Caulk Acrylic - Instantly Rain Resistant - Long Lasting Flexible Seal - Overpaintable - Interior & Exterior Use - 310ml | Model 12 x Polycell Trade Decorators Caulk White Cartridge - 380ml | Model Everbuild External Frame Sealant – Interior And Exterior Use – Permanently Flexible – Mould-Resistant – Grey – 290ml |
BrandEverbuild | Brand Unibond | Brand Siroflex | Brand maman | Brand Everbuild |
Reviews | Reviews | Reviews | Reviews  | Reviews |
Features | ||||
Worth the money 9.1 | Worth the money 8.6 | Worth the money  9.6 | Worth the money 9.3 | Worth the money 8.4 |
Simple to use 9.1 | Simple to use 9.1 | Simple to use 9.9 | Simple to use 9.6 | Simple to use 8.9 |
Attachment 9.3 | Attachment 9.1 | Attachment 9.9 | Attachment 9.9 | Attachment 8.6 |
Waterproof 9.1 | Waterproof 8.4 | Waterproof 9.9 | Waterproof 9.9 | Waterproof 8.1 |
Tech Specs | ||||
item package quantity 1 | item package quantity 1 | item package quantity 1 | item package quantity - | item package quantity 1 |
product dimensions 5 x 5 x 23 cm 530 g | product dimensions 5 x 5 x 23 cm 392 g | product dimensions 23 x 5 x 5 cm 310 g | product dimensions - | product dimensions 23 x 5 x 5 cm 478 g |
item weight 530 g | item weight 392 g | item weight 310 g | item weight - | item weight 477 g |
included components 1 x Caulk Cartridge | included components UniBond Outdoor Window & Door Frame Sealant Cartridge - White | included components 1 X Tube Siroflex SX Rain Proof Acrylic Caulk 310ml White | included components - | included components 1 x cartridge |
material high-quality polymer | material Silicone, Metal | material Acrylic | material - | material Acrylic |
customer reviews4.5 4.5 out of 5 stars 10, 650 ratings 4.5 out of 5 stars | customer reviews 4.5 4.5 out of 5 stars 1, 738 ratings 4.5 out of 5 stars | customer reviews 4.4 4.4 out of 5 stars 55 ratings 4.4 out of 5 stars | customer reviews - | customer reviews 4.4 4.4 out of 5 stars 4, 025 ratings 4.4 out of 5 stars |
batteries required No | batteries required No | batteries required No | batteries required - | batteries required No |
color White | color White | color White | color - | color Grey |
batteries included No | batteries included No | batteries included - | batteries included - | batteries included No |
Available On | Available On | Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.7
2Unibond18% OffUniBond 2078170 Outdoor Window and Door Frame Sealant, White Outdoor Sealant, Durable Weatherproof Door and Window Sealant, Cartridge
9.1 Simple to use9.1 Attachment8.6 worth the moneyWhy we love it
Flexible Durable
Multi materials
Waterproof Long lasting
-
9.6
3Siroflex
SX White Rainproof Exterior Caulk Acrylic - Instantly Rain Resistant - Long Lasting Flexible Seal - Overpaintable - Interior & Exterior Use - 310ml
9.9 Simple to use9.9 Attachment9.9 WaterproofMain highlights- OVER PAINTABLE- Acrylic Caulk can be overpaintable to match existing paint work, with water based and synthetic paints.
- NO PRIMER REQUIRED - You will achieve perfect adhesion on most surfaces without the need for primer.
- LOW ODOUR - With our formular, our caulk is almost odourless so can be used in confined spaces.
- EXTERIOR CAULK - Rain resistant immeditely after application, internal and external use, forms a soft rubber flexible seal when dry with high elongation at break and high movement accommodation
- EASY TO APPLY - Simply gun onto the surface and smooth off, clean up with soap and water.
- CONTENTS - 1 x SX White Rainproof Exterior Caulk Acrylic 310ml
Our ranking system
The TopChoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria.We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. TopChoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.
Features
Our team of experts analyzes key attributes, capabilities, significance, and many more depending on the type of product to determine its effectiveness.
Consumer Reviews
We ensure an evaluation of the ratings using references all over the internet for each product. With the help of our AI technology and professional review teams, we give weight to the worth of individual user experiences.
Popularity
Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
