Protecting &
Transforming.
From advanced natural cork spray insulation to precision traditional rendering and plastering — we finish properties built to last.
What We Do Best
- Cork Spray Insulation
- Coloured Render Systems
- Thin Coat & Monocouche
- Traditional Plastering
The Full Picture
Every Service, One Trusted Team
From breathable cork insulation to precision rendering and traditional plastering — we deliver the complete external and internal wall solution. TIWI-certified, manufacturer-backed, and built on 15 years of hands-on expertise across the UK.
- Cork spray insulation
- External cork rendering
- Internal cork plastering
- Traditional sand & cement
- Coloured silicone renders
- Thin coat EWI systems
- Skim coats & re-plasters
- All UK property types
15+
Years' Experience
200+
UK Properties
TIWI
Certified
10yr+
Warranty
Service Categories
What Makes Each Service Different
Every property has unique needs. Understanding the differences between our service categories helps you choose the right solution — or we'll recommend the best fit during your free consultation.
Cork Spray Insulation
Natural cork spray is applied directly to your walls — internally or externally — creating a seamless, breathable insulation layer. Unlike spray foam, cork doesn't trap moisture. It's been used in Mediterranean construction for centuries and is now transforming UK homes.
- Thermal conductivity of 0.037 W/mK — outperforms most traditional insulation
- 100% natural, carbon-negative material from sustainably harvested cork oak bark
- Naturally antimicrobial — actively resists mould, mildew, and bacteria growth
- Fire-resistant (Class B-s1, d0) with no toxic fumes when exposed to flame
- Conforms to curved walls, bay windows, and irregular surfaces seamlessly
Thermal
0.037 W/mK
Acoustic
Up to 20dB reduction
Sustainable
Carbon-negative
Fire Rated
Class B-s1, d0
Rendering & External Wall Finishes
We offer the full spectrum of external render systems — from traditional sand and cement to modern through-coloured silicone finishes and lightweight thin coat EWI systems. Each system is selected to suit your property's construction, exposure, and aesthetic goals.
- Traditional renders — sand & cement, pebbledash removal, re-rendering
- Coloured silicone renders — fade-resistant, maintenance-free for 25+ years
- Thin coat EWI systems — insulation boards with a decorative, durable finish
- Cork external render — combines weather protection with thermal insulation
- Bespoke colour matching — hundreds of RAL shades available for silicone finishes
Traditional
Sand & cement
Coloured
100+ RAL shades
Thin Coat
EWI systems
Cork Render
Spray-applied
Traditional Plastering
Every cork insulation job needs a flawless finish — and that's where John's 15+ years of plastering expertise really shows. We also take on standalone plastering work for clients who simply want the best finish in the room, without the insulation element.
- Full re-plasters — strip back to brick and build up with bonding, browning, and skim
- Skim coats — a glass-smooth finish over existing plasterboard or patched walls
- Artex removal — safely skim over textured ceilings for a modern, clean look
- Dot and dab — plasterboard fixing for uneven walls, plus skim to finish
- Damp-proof plastering — tanking slurry and renovating plaster for damp-affected walls
Full Re-plaster
Brick to finish
Skim Coats
Glass-smooth
Artex Removal
Modern finish
Damp-Proof
Tanking systems
Why Cork Wins
Cork Spray vs the Alternatives
We've seen the damage spray foam causes. Here's how cork stacks up against the most common insulation methods — and why we'll never use spray foam.
Everything We Offer
All Services at a Glance
Six core services — each delivered with the same TIWI-certified standards and manufacturer-backed warranties. Every job is completed by John personally.
Cork Plastering (Internal)
Breathable internal cork insulation applied directly to interior walls. Ideal for solid-wall Victorian and Edwardian properties suffering from damp, condensation, or heat loss. Dramatically improves thermal comfort without trapping moisture.
Cork Rendering (External)
External cork spray coating that combines superior weather protection with excellent thermal insulation. A sustainable, long-lasting alternative to traditional render systems — spray-applied for seamless coverage across any facade.
Traditional Renders
Sand and cement renders applied with precision — from pebbledash removal to complete re-renders. We deliver clean, lasting results on any masonry surface, with meticulous attention to surface preparation that most contractors skip.
Coloured Render Systems
Through-coloured silicone renders in hundreds of vibrant, fade-resistant shades. No painting required — ever. The colour goes all the way through, giving you a low-maintenance exterior that looks fresh for decades without lifting a brush.
Thin Coat EWI Systems
Lightweight external wall insulation combining insulation boards with a durable, decorative finish. Dramatically improves your property's thermal performance and EPC rating — reducing energy bills while completely transforming the facade.
Plastering
Traditional internal plastering to the highest standard — from skim coats over plasterboard to full re-plasters back to brick. The same meticulous attention to detail whether it's a single room, an artex ceiling, or an entire property renovation.
Why Eco Coatings
The Difference You'll Notice
Beyond the materials and techniques — here's what sets us apart from every other insulation and rendering company in the UK.
Owner on Every Job
John personally attends and completes every project. No subcontractors, no apprentices left unsupervised. The person who quoted is the person who delivers.
Honest Advice Always
If cork isn't right for your property, we'll tell you. If a cheaper solution does the same job, we'll recommend it. Our reputation matters more than any single sale.
Prep Done Properly
Proper surface preparation is 90% of a great finish. We never cut corners — every surface is cleaned, repaired, and primed before any material goes on.
Transparent Pricing
Detailed, itemised quotes with no hidden costs. You'll know exactly what you're paying for before any work begins — and the price won't change halfway through.
10+ Year Warranties
Every cork insulation project is backed by a manufacturer warranty of 10 years or more. We stand behind everything we do — long after the scaffolding comes down.
UK-Wide Coverage
Based in Leeds, we work across West Yorkshire and nationwide for larger projects. From terraced houses in Headingley to listed buildings in the Lake District.
TIWI Certified
Thermal Insulation and Waterproofing Industry certified — the UK's recognised standard for insulation professionals. Verified skills, ongoing training, industry accountability.
No Hard Sell
Free consultations with zero pressure. We'll assess your property, explain your options in plain English, and leave you to decide. Follow-up calls? Not our style.
Ready to Improve Your Property?
Free consultation, honest advice, and a no-obligation quote — typically within 48 hours.
Rendering Specialists
Specialist Rendering Services
Traditional and modern render systems — each tailored to your property's needs and your aesthetic preferences.
Traditional Renders
Sand and cement renders applied with skill and precision. Whether you need pebbledash removal and a fresh finish, or a complete re-render, we deliver clean, lasting results on any masonry surface.
View Service →Coloured Render Systems
Through-coloured silicone renders available in a wide range of vibrant, fade-resistant finishes. No painting needed — the colour goes all the way through, giving you a low-maintenance exterior that looks fresh for decades.
View Service →Thin Coat Render Systems
Lightweight external wall insulation systems that dramatically improve your property's thermal performance. Thin coat renders combine insulation boards with a durable, decorative finish — reducing energy bills while transforming your home's appearance.
View Service →The Natural Choice
Why Cork Spray Insulation?
Cork is one of nature's most remarkable materials — and it's been used in construction for centuries. Here's why we champion it.
Thermal Insulation
Dramatically reduces heat loss through walls, keeping your home warmer in winter and cooler in summer.
Acoustic Insulation
Cork's cellular structure naturally dampens sound transmission, creating a quieter, more comfortable living environment.
Breathable
Unlike spray foam, cork allows moisture to pass through naturally — no trapped damp, no condensation problems, no hidden damage.
Sustainable
Harvested from the bark of cork oak trees without harming them — the bark regrows every 9 years. Truly renewable and carbon-negative.
Flexible Application
Cork spray conforms to any surface shape — curved walls, bay windows, rough masonry. No surface is too awkward.
Mould Resistant
Cork's natural antimicrobial properties actively resist mould and mildew growth — a genuine health benefit, especially in damp-prone properties.
Our Process
How We Work — From Enquiry to Completion
No surprises, no hidden costs. Every project follows the same straightforward process.
Free Consultation
We visit your property, assess the work needed, and give you honest advice. If cork isn't the right solution, we'll tell you — and recommend what is.
Detailed Quote
Transparent pricing with everything itemised. No hidden costs, no vague estimates. You'll know exactly what you're paying for before any work begins.
Surface Preparation
Proper prep is 90% of a great finish. We take the time to clean, repair, and prime every surface properly — cutting corners here means problems later.
Expert Application
John is on every job, applying TIWI-certified techniques built on 15+ years of experience. No subcontractors, no apprentices left unsupervised.
Final Inspection
We walk through the completed work with you. We don't leave until you're completely satisfied — and we stand behind everything with a manufacturer-backed warranty.
No Property Too Complex
We Work on All Property Types
From Victorian terraces to modern new builds — we've seen it all and know exactly what each property type needs.
Victorian & Edwardian Terraces
Solid-wall properties that benefit enormously from cork's breathable insulation — improving thermal performance without trapping moisture in period walls.
Semi-Detached Homes
The UK's most common house type. We regularly insulate and render semis, tackling exposed gable ends and party wall cold-bridging.
Detached Properties
Maximum exposed wall area means maximum heat loss. Cork rendering on a detached property delivers the most dramatic improvement in energy efficiency.
Extensions & New Builds
Get insulation right from day one. Cork spray applied during the build phase integrates seamlessly and exceeds current Building Regulations requirements.
Commercial Buildings
Offices, retail units, warehouses — cork insulation reduces heating costs and improves acoustic performance in commercial spaces of any size.
Listed & Heritage Buildings
Cork's breathable, flexible nature makes it one of the few insulation materials suitable for listed buildings — sympathetic to historic fabric while improving comfort.
We believe in honest advice. If cork isn't right for your property, we'll tell you.
Not Sure Which Service You Need?
Every property is different. Get in touch for honest, no-obligation advice — we'll recommend the right solution for your home.
Quick Enquiry
We'll get back to you within 24 hours.