About Us

Welcome to Renderwarm – the external wall insulation specialists! Operating in Coventry, we have a friendly, professional team with a range of knowledge and experience, all with the number one goal of fantastic customer service time and time again, which is the reason we have such a large repeat client list!

Installation Experts

Outstanding Customer Service

Energy Efficient


  • Very friendly staff who were happy to help. Prompt and reasonable quote. More than satisfied with the outcome, looks fab. Good after compilation service as well. Would recommend

  • Renderwarm were very reasonably priced and helpful when having my house rendered and one side insulated. David and the team were prompt and I can certainly recommend

  • We had our house rendered by Dave and his team and what can we say. What a transformation it has made! Our house was tired and ageing and now it looks like a different house! Renderwarm were very professional and cannot rate them higher. Would always recommend to anyone looking for a fantastic service and finish. Thanks guys!

Service you can Trust

We can assist with all home insulation needs to the highest standard! Did you know that Renderwarm are approved installers for Johnston’s/ppg? We are one of the UK’s biggest EWI and Render suppliers All of our external wall insulation work comes with a 15 year guarantee, so you can rest easy knowing if something wasn’t right – you’re covered and in safe hands! All of our rendering work comes with a 10 year guarantee (covered by Johnston’s/ppg)


Get in Touch

Contact us

Unit 4/A,
Level 13, 2 Elizabeth St,
Meriden Works, Birmingham Rd
Millisons Wood
West Midlands