
• Makes your home warmer in the winter
• Updates the look of your home with a brand new render finish
• Can add value to your property
• 25 year warranty available


Rockwarm
Rockwarm is a local family run business (Est. 1983) offering Insulation, Rendering and home improvement solutions across the private and social housing sectors.
We have been successfully trading for over 36 years, and have worked as approved contractors to the following Energy Providers in recent years.
Our Services
External Wall Insulation
External wall insulation is installed by adding a weatherproof insulating layer to the outside of your wall. This could be in the form of a protective render. The thickness of the insulation is usually between 60 and 100mm thick.
Find Out MoreCavity Wall Insulation
Cavity wall insulation is used to reduce heat loss through a cavity wall by filling the air space with material that inhibits heat transfer. Cavity Wall Insulation can save you up to 30% on your bills.
Find Out MoreLoft Insulation
Heat rises, and in an uninsulated home a quarter of your heat is lost through the roof. Insulating your loft, attic or flat roof is a simple and effective way to save that waste and reduce your heating bills.
Find Out MoreConservatory Roof Replacement
This roof conversion eliminates the maintenance associated with glass and polycarbonate roofs. With a new tiled and insulated roof, you won’t have to waste time cleaning moss, dirt, or leaves from your conservatory, or worry about leaks and shifting or sun glare temperature
Find Out More
Who said looks aren't everything?


Semi-detached from only £4,995
Mid-terraced from only £2,495
Kind words from some happy customers


“Just a word of thanks for the work carried out on my property. It has certainly made a big difference to the look of the house, and I am looking forward to lower fuel bills too.”
- Mrs. Tilley, Bedworth


“I am writing to express my appreciation for the excellent quality of work undertaken at my home recently. The work itself was of a high standard with the family noticing a difference almost immediately in the overall warmth of the house.”
- Mr. Low, Rugby
Working together with:










Case Studies


Cotswold Stone - EWI Pilot
Our brief was to install External Wall Insulation and then re-emulate the look of this beautiful Cotswold stone property, which we successfully achieved by using specialist brick slips and window mouldings, quoins etc. Take a look at how we did this:


St Johns Street EWI Installation
These beautiful red-brick Victorian Properties were in desperate need of insulation to stop the draughts and make the homes cosier and help to the residents save money on their heating bills. Take a look at how we achieved this by installing External Wall Insulation with a brickslip finish.
Instant Online Quotations
We are more than happy to answer any of your questions. Installing EWI and render is a big job that requires careful consideration before going ahead. That’s why we are always pleased to advise customers as to the best options for their particular property. If you are looking for a quote, please contact us via the form below to get a quick, free, no obligation response. If you prefer to contact us directly - please call us now on 02476 345554