--- title: "External Wall Insulation (EWI) Rochdale & Manchester | Lower Heating Bills" description: "External wall insulation specialists across Rochdale, Greater Manchester & Lancashire. Cut heating bills 20–35%, premium render finish, 25-year system." lang: en-GB json-ld: | [ { "@context": "https://schema.org", "@type": "Organization", "@id": "https://mcbplasteringsolutions.co.uk/#organization", "name": "MCB Plastering & Rendering Solutions", "url": "https://mcbplasteringsolutions.co.uk", "logo": "/__l5e/assets-v1/9aab0bdd-de76-454a-a1f8-57f95fe32e0a/mcb-icon-512.png", "telephone": "07540 112744", "email": "mcbplasteringsolutions@outlook.com", "address": { "@type": "PostalAddress", "streetAddress": "12 Wallbank Dr", "addressLocality": "Whitworth", "addressRegion": "Rochdale", "postalCode": "OL12 8TZ", "addressCountry": "GB" }, "sameAs": [ "https://www.facebook.com/mcbplasteringandrendering/", "https://www.instagram.com/mcb_plastering_rendering/" ], "areaServed": [ "Whitworth", "Rochdale", "Bury", "Oldham", "Burnley", "Rawtenstall", "Bacup", "Accrington", "Bolton", "Rossendale Valley", "Ramsbottom" ] }, { "@context": "https://schema.org", "@type": "WebSite", "@id": "https://mcbplasteringsolutions.co.uk/#website", "name": "MCB Plastering & Rendering Solutions", "url": "https://mcbplasteringsolutions.co.uk", "publisher": { "@id": "https://mcbplasteringsolutions.co.uk/#organization" }, "inLanguage": "en-GB", "potentialAction": { "@type": "SearchAction", "target": "https://mcbplasteringsolutions.co.uk/?s={search_term_string}", "query-input": "required name=search_term_string" } }, { "@context": "https://schema.org", "@type": "Service", "name": "Insulated Render (EWI)", "serviceType": "Insulated Render (EWI)", "provider": { "@type": "LocalBusiness", "name": "MCB Plastering & Rendering Solutions", "telephone": "07540 112744", "address": { "@type": "PostalAddress", "streetAddress": "12 Wallbank Dr", "addressLocality": "Whitworth", "addressRegion": "Rochdale", "postalCode": "OL12 8TZ", "addressCountry": "GB" } }, "areaServed": [ { "@type": "City", "name": "Whitworth" }, { "@type": "City", "name": "Rochdale" }, { "@type": "City", "name": "Bury" }, { "@type": "City", "name": "Oldham" }, { "@type": "City", "name": "Burnley" }, { "@type": "City", "name": "Rawtenstall" }, { "@type": "City", "name": "Bacup" }, { "@type": "City", "name": "Accrington" }, { "@type": "City", "name": "Bolton" }, { "@type": "City", "name": "Rossendale Valley" }, { "@type": "City", "name": "Ramsbottom" } ], "description": "External wall insulation specialists across Rochdale, Greater Manchester & Lancashire. Cut heating bills 20–35%, premium render finish, 25-year system." }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How much does EWI cost?", "acceptedAnswer": { "@type": "Answer", "text": "Typically £110–£180 per m² fully installed and scaffolded, usually £14k–£25k for a 3-bed semi. ECO4 and regional grants may cover part or all of the cost for eligible homes." } }, { "@type": "Question", "name": "Will EWI really cut my heating bills?", "acceptedAnswer": { "@type": "Answer", "text": "For solid-wall homes, yes, typically 20–35% reduction in heating cost based on independent assessments. Cavity-wall homes already insulated see smaller gains." } }, { "@type": "Question", "name": "Is EWI eligible for ECO4 funding?", "acceptedAnswer": { "@type": "Answer", "text": "Often yes, for eligible households (means-tested or specific tenure types). We'll flag eligibility on survey and direct you to registered funding routes." } }, { "@type": "Question", "name": "How long does EWI take to install?", "acceptedAnswer": { "@type": "Answer", "text": "Typical 3-bed semi: 3–5 weeks including scaffold and weather contingency." } }, { "@type": "Question", "name": "Does EWI need planning permission?", "acceptedAnswer": { "@type": "Answer", "text": "Usually no for like-for-like external upgrades, but conservation areas and listed buildings require consent. We'll advise on survey." } }, { "@type": "Question", "name": "Will EWI cause damp?", "acceptedAnswer": { "@type": "Answer", "text": "Correctly specified breathable systems prevent damp. Wrong specification (e.g. impermeable system on a breathable wall) causes interstitial condensation, which is why specification matters." } }, { "@type": "Question", "name": "What's the warranty?", "acceptedAnswer": { "@type": "Answer", "text": "25-year manufacturer system warranty when installed by registered specialists, plus our written workmanship guarantee." } }, { "@type": "Question", "name": "Will the appearance of my house change?", "acceptedAnswer": { "@type": "Answer", "text": "Yes, walls become 60–150mm thicker, and you get a fresh silicone render finish. Window reveals deepen visually." } }, { "@type": "Question", "name": "Can you do single elevations?", "acceptedAnswer": { "@type": "Answer", "text": "Yes, though full coverage delivers the best thermal performance. Single elevations are useful where one wall is particularly exposed or cold." } }, { "@type": "Question", "name": "Is EWI better than internal wall insulation?", "acceptedAnswer": { "@type": "Answer", "text": "Usually yes, EWI keeps the thermal mass inside, eliminates internal disruption, and avoids cold-spot interstitial condensation risks. IWI is sometimes the only option in listed properties." } } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://mcbplasteringsolutions.co.uk" }, { "@type": "ListItem", "position": 2, "name": "Services", "item": "https://mcbplasteringsolutions.co.uk/services" }, { "@type": "ListItem", "position": 3, "name": "Insulated Render (EWI)", "item": "https://mcbplasteringsolutions.co.uk/services/ewi-render" } ] } ] --- [07540 112744 ](tel:+447540112744)[mcbplasteringsolutions@outlook.com ](mailto:mcbplasteringsolutions@outlook.com) Mon – Fri 7am–7pm · Sat 7am–12pm · Sun Closed Free quote in 24h [![MCB Plastering & Rendering Solutions](/__l5e/assets-v1/bdbca180-f614-491a-b7d2-84b18566f16c/mcb-logo-header.png)](/) [Home](/)[About](/about) [Services](/services) [Areas](/areas) [Our Work](/our-work)[Reviews](/reviews)[Contact](/contact) [07540 112744](tel:+447540112744)[Get Free Quote](/contact) 1. [Home](/) 2. [Services](/services) 3. Insulated Render (EWI) ![External Wall Insulation system mid-installation on a UK property — grey EPS insulation boards fixed and mechanically pinned across the elevation, scaffold in place ready for base coat and render](/__l5e/assets-v1/ed6706d1-b04f-4298-907a-0a8586eeb86e/ewi-hero.jpg) Specialist service · Rochdale & the North West # Insulated External Render Lower Bills. Warmer Home. External wall insulation systems that genuinely cut heating bills 20–35%, finished with a premium silicone render and backed by a 25-year manufacturer system warranty. [Get my free quote](/contact) [Call 07540 112744](tel:+447540112744) 5-star Google-rated · 40+ years combined experience · Free same-day written quote 20–35% Heating-bill reduction 25-yr System warranty BBA Certified systems Funding Routes available Free Energy survey Service overview ## Done right, insulated render (ewi) adds 25+ years of value. External wall insulation (EWI) wraps your home in 60–150mm of insulation board, finished with a full render system. Heating bills drop 20–35%, draughts disappear, internal walls warm up, and you get a brand-new render finish at the same time. For solid-wall homes built before 1930, EWI is the single biggest energy upgrade available. ### What it is EWI is a system: insulation boards (EPS or mineral wool) mechanically and adhesively fixed to the external wall, covered with a polymer base coat and reinforcing mesh, then finished with a silicone or acrylic topcoat in any colour. ### Who it's for Solid-wall homeowners with cold internal walls, landlords meeting MEES regulations, eligible households accessing ECO4 and similar funding, and self-builders specifying high-performance external wraps. ### When you need it Where existing render is failing AND heating bills are high, EWI delivers both fixes at once. Also when modernising a tired exterior and you'd benefit from the thermal upgrade. ### Why a specialist matters EWI is an engineered system. Get the fixings wrong, the bead detailing wrong, or the substrate prep wrong and you create a thermal-bridge problem worse than no insulation. Manufacturer-trained installers deliver the warranty. The cost of getting it wrong ## Why DIY-grade EWI is worse than no insulation EWI failures are catastrophic, and almost always caused by cutting corners on system specification. ### Interstitial condensation Wrong board, wrong vapour control, or no detailing at openings traps moisture inside the build-up. Result: hidden rot, mould, and structural damage years later. ### Thermal bridging at openings Window and door reveals must be insulated and detailed properly. Skip it and you get cold spots, condensation and mould on internal reveals. ### Mechanical fixing failure Wrong fixing pattern or wrong fixing for substrate causes boards to detach years later, taking the render with them. ### No warranty BBA-certified systems only carry warranty when installed by registered installers using the full system. Mixed-and-matched parts = no cover. Our process ## Five steps, zero surprises. Same process on every job, domestic, commercial, single-room or full house. [Start with a free survey](/contact) 01 ### Energy & survey assessment We assess wall construction, U-value, internal moisture, exposure rating, and recommend the right system depth and finish. 02 ### Funding & specification Where eligible we'll flag ECO4 and other regional funding routes. You receive a detailed written quote and timeline. 03 ### Scaffold & substrate prep Scaffold up, substrate cleaned, defective brickwork repaired, openings prepared for reveal detailing. 04 ### Insulation & mesh Insulation boards fixed adhesively and mechanically per system spec; base coat applied with full alkali-resistant mesh embedment. 05 ### Silicone topcoat & sign-off Topcoat applied wet-on-wet across full elevations; system registered with manufacturer for full warranty. Why MCB ## Specific benefits, not vague promises. ### 20–35% lower heating bills Independent assessments consistently show heating-cost reductions in this range for solid-wall homes after EWI. ### Warmer internal walls Internal surface temperature rises by 4–7°C, eliminating cold spots and condensation/mould issues. ### No internal disruption All work is external. You keep your skirting boards, plug sockets, radiators and internal decoration. ### Brand-new render finish You get a premium silicone render facade as part of the same package. ### 25-year system warranty Full manufacturer warranty when installed by registered specialists, backed by our workmanship guarantee. ### Asset value uplift EPC rating improves; resale value rises; rental properties move into compliance. In depth ## EWI systems in detail EWI is an engineered system with multiple layers, each doing a specific job. Here's how a correctly specified installation is built up. The substrate has to be sound, clean and stable. Failed render, loose paint, damp brickwork, all of it has to be addressed before any insulation goes on. We tap-test the existing wall, repair where needed, and document substrate condition before quoting. Insulation boards (typically 90–150mm EPS or 90–120mm mineral wool) are fixed with both adhesive and mechanical fixings, typically 6 fixings per board, in a pattern set by the system manufacturer. Mineral wool is heavier and more fire-resistant; EPS is cheaper and easier to detail. Spec depends on building height, fire-strategy and budget. Reveal detailing is where most installers cut corners and where most failures originate. Window and door reveals must be wrapped in insulation, mesh and beads to maintain thermal continuity. We use system-matched reveal beads and detail every opening to manufacturer specification. The base coat is applied at 6–8mm with full alkali-resistant mesh embedment, including additional 45° corner-reinforcement mesh at every opening. The silicone topcoat goes on wet-on-wet across whole elevations, in any RAL or system colour. The job is then registered with the manufacturer for the full 25-year warranty. #### Residential Typical 3-bed semi is 3–5 weeks on site including scaffold and weather windows. #### Commercial Commercial EWI is programme-led with phased scaffold, traffic management, and main-contractor coordination. ### Materials & systems we use - EPS / Mineral wool boards 90–150mm insulation boards mechanically and adhesively fixed to the substrate. - K Rend / Wetherby / Weber EWI systems Full BBA-certified EWI systems including boards, base coat, mesh, primer and topcoat. - System-matched beads Reveal beads, stop beads, expansion beads and corner beads matched to the chosen system. - Silicone TC topcoat Through-coloured self-cleaning topcoat, the same premium finish used on standalone silicone render jobs. Manufacturer trained Fully insured Same-day quotes FAQs ## Answers to the questions we hear most. Not seeing yours? Call 07540 112744, we answer the phone ourselves. [Ask us anything](/contact) ### How much does EWI cost? Typically £110–£180 per m² fully installed and scaffolded, usually £14k–£25k for a 3-bed semi. ECO4 and regional grants may cover part or all of the cost for eligible homes. ### Will EWI really cut my heating bills? ### Is EWI eligible for ECO4 funding? ### How long does EWI take to install? ### Does EWI need planning permission? ### Will EWI cause damp? ### What's the warranty? ### Will the appearance of my house change? ### Can you do single elevations? ### Is EWI better than internal wall insulation? Related services ## Often paired with insulated render (ewi) - [K Rend & Spray Cork Premium silicone render specialists. ](/services/k-rend-grey-caulk) - [Rendering Weatherproof external finishes. ](/services/rendering) - [Bonding & Skimming Re-build, re-line, re-skim. ](/services/bonding-skimming) [View all services →](/services) Areas we cover ## Insulated Render (EWI) across the North West - [WhitworthLancashire ](/areas/whitworth) - [RochdaleGreater Manchester ](/areas/rochdale) - [BuryGreater Manchester ](/areas/bury) - [OldhamGreater Manchester ](/areas/oldham) - [BurnleyLancashire ](/areas/burnley) - [RawtenstallRossendale Valley ](/areas/rawtenstall) - [BacupRossendale Valley ](/areas/bacup) - [AccringtonLancashire ](/areas/accrington) - [BoltonGreater Manchester ](/areas/bolton) - [Rossendale ValleyLancashire ](/areas/rossendale) - [RamsbottomGreater Manchester ](/areas/ramsbottom) [View all areas →](/areas) Free, no-obligation quote ## Ready for insulated render (ewi) done properly? Written fixed-price same-day quote. Tidy site, time-served team, 10-year render manufacturer guarantee. [Get my free quote](/contact) [Call 07540 112744](tel:+447540112744) Fully insured · 10-year render guarantee · Same-day quote turnaround [![MCB Plastering & Rendering Solutions](/__l5e/assets-v1/04f3b2a2-9cec-4cf0-9332-e0f3e73ff6fa/mcb-logo.png)](/) Time-served plasterers and renderers serving Rochdale, Greater Manchester and Lancashire. Flawless finishes, tidy sites, same-day written quotes. 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