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Expert Blown Stone Wool Insulation Services
Redplug Blown Insulation Blown Insulation is the UK's leading installer of blown stone wool systems, specialising in thermal, fire, and soundproofing solutions for commercial, industrial, and residential projects. With over four decades of construction expertise, our team delivers innovative insulation services for high, awkward, and complex structures. Our ISO 9001:2015 certification and CHAS/Constructionline Silver accreditation underscore our commitment to quality and safety. Managing Director Michael Harley, a seasoned construction professional with 40 years' experience, leads all projects, ensuring tailored solutions that meet evolving client needs.

We prioritise product excellence, system reliability, and customer satisfaction, offering turnkey services across England and Wales. Our patented Red-Stop Fire Barrier System and acoustic insulation products comply with UK and EU standards, providing durable, energy-efficient outcomes. Backed by a proven track record, we address nuisance noise, thermal performance, and fire spread risks with minimal disruption to existing structures.
Services
Loft Insulation Floor Insulation Ceiling Insulation Fire Barrier Systems Soundproofing Insulation
Highlights and features
  • 40 years' construction experience with specialist insulation expertise
  • ISO 9001:2015 certified quality management system
  • Patented Red-Stop Fire Barrier technology for compliance
  • CHAS and Constructionline Silver accredited contractor
  • Specialist in hard-to-treat high/complex structures
Associations and certifications
  • ISO 9001:2015
  • CHAS
  • Constructionline Silver
Services
Loft Insulation
Our blown stone wool loft insulation improves thermal efficiency while maintaining structural integrity. This non-invasive solution outperforms traditional quilt alternatives, reducing energy costs and carbon emissions. Ideal for both new builds and refurbishment projects across residential and commercial sectors.
Fire Barrier Systems
Redplug Blown Insulation Blown Insulation's patented Red-Stop Fire Barrier System prevents fire spread through voids and cavities. Compliant with UK and EU regulations, this engineered solution offers superior protection for complex structures without requiring major modifications to existing buildings.
Soundproofing Insulation
Our acoustic insulation solutions reduce nuisance noise transmission through floors and ceilings. Using mineral wool technology, we deliver quieter environments for residential, commercial, and industrial properties without the need for disruptive floating floor systems.
Floor Insulation
Blown stone wool floor insulation enhances thermal performance in challenging spaces. This minimally invasive method provides better results than conventional approaches, particularly suited for hard-to-access areas in both domestic and commercial settings.
Ceiling Insulation
Our ceiling insulation solutions improve thermal and acoustic performance with minimal disruption. Using advanced blowing techniques, we treat deep or complex ceiling voids more efficiently than traditional methods, ensuring compliance with modern building regulations.
People
Michael Harley
Managing Director
With 40 years' construction experience, Michael leads Redplug Blown Insulation Blown Insulation's project delivery. His expertise in building pathology and restoration drives our innovative insulation solutions for complex structures.
Questions
What insulation services do you offer?
We specialise in blown stone wool solutions for loft, floor, ceiling, fire barrier, and soundproofing insulation across commercial, industrial, and residential properties.
Are your systems UK compliant?
Yes, our Red-StopĀ® Fire Barrier System and all insulation products meet current UK and EU building regulations and fire safety standards.
Which areas do you cover?
We operate nationwide across England and Wales, handling projects from simple domestic installations to complex commercial developments.
Do you handle difficult access projects?
Yes, our blowing technology excels in treating high, deep, or awkward structures where traditional methods would be impractical or disruptive.
What accreditations do you hold?
We maintain ISO 9001:2015 certification and are CHAS and Constructionline Silver accredited contractors for quality and safety assurance.
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