Clapham Double Glazing
(https://claphamdoubleglazing.co.uk) 📸 Data Snapshot: May 21, 2026
Identity & Authority — The Lens
Inspect the JSON-LD. Is there an Organization or Person schema, and does it carry sameAs links to real external profiles (LinkedIn, socials)? Missing schema or no identity declaration signals an anonymous entity.
Identity & Authority
Expert verifiability & Schema depth.
4
Impact Weight: 15 / 100
27% Reputation
There is a total absence of named human authority; no directors, fitters, or experts are named or linked to professional bodies like FENSA or CERTASS in the text, although these are standard requirements for the industry. The schema_json is populated with LocalBusiness data but lacks sameAs links to social profiles or external business directories, resulting in a thin digital footprint. Technical credibility is maintained through clean heading structures, but the lack of registration numbers is a red flag.
The site claims to provide ‘energy-efficient A-rated’ solutions and ‘Acoustic glazing’ for quiet homes but offers zero data-backed case studies or decibel reduction metrics. Claims like ‘transformed the space’ in testimonials are subjective and lack accompanying ‘before and after’ visual evidence or specific project addresses. The ’24/7 emergency glazing’ claim is bold but lacks a direct ‘click-to-call’ protocol or dispatch time guarantees in the body text.
Identity & Authority is read from the structured data first: whether the site declares who it is in machine-readable schema, with verifiable identity links. Below is the schema captured per page, then the external proof links that support (or fail to support) that identity.
🔗 Identity & Technical Layer — schema JSON-LD: identity chains, entity gaps
Homepage schema
[
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"@context": "https://schema.org",
"@graph": [
{
"@type": "WebPage",
"@id": "https://claphamdoubleglazing.co.uk/",
"url": "https://claphamdoubleglazing.co.uk/",
"name": "Window and Door Installation for Clapham",
"isPartOf": {
"@id": "https://claphamdoubleglazing.co.uk/#website"
},
"about": {
"@id": "https://claphamdoubleglazing.co.uk/#organization"
},
"primaryImageOfPage": {
"@id": "https://claphamdoubleglazing.co.uk/#primaryimage"
},
"image": {
"@id": "https://claphamdoubleglazing.co.uk/#primaryimage"
},
"thumbnailUrl": "https://claphamdoubleglazing.co.uk/wp-content/uploads/2025/02/visualizer-1024x796.webp",
"datePublished": "2018-02-12T14:40:57+00:00",
"dateModified": "2025-08-06T16:42:24+00:00",
"description": "Need new windows or a front door in Clapham? Our expert contractors offer affordable solutions and premium door designs for your home.",
"breadcrumb": {
"@id": "https://claphamdoubleglazing.co.uk/#breadcrumb"
},
"inLanguage": "en-US",
"potentialAction": [
{
"@type": "ReadAction",
"target": [
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]
}
]
},
{
"@type": "ImageObject",
"inLanguage": "en-US",
"@id": "https://claphamdoubleglazing.co.uk/#primaryimage",
"url": "https://claphamdoubleglazing.co.uk/wp-content/uploads/2025/02/visualizer.webp",
"contentUrl": "https://claphamdoubleglazing.co.uk/wp-content/uploads/2025/02/visualizer.webp",
"width": 1152,
"height": 896,
"caption": "Online Windows and Doors visualizer"
},
{
"@type": "BreadcrumbList",
"@id": "https://claphamdoubleglazing.co.uk/#breadcrumb",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"name": "Home"
}
]
},
{
"@type": "WebSite",
"@id": "https://claphamdoubleglazing.co.uk/#website",
"url": "https://claphamdoubleglazing.co.uk/",
"name": "Clapham Glazing",
"description": "The Windows & Doors Specialist",
"publisher": {
"@id": "https://claphamdoubleglazing.co.uk/#organization"
},
"potentialAction": [
{
"@type": "SearchAction",
"target": {
"@type": "EntryPoint",
"urlTemplate": "https://claphamdoubleglazing.co.uk/?s={search_term_string}"
},
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"valueRequired": true,
"valueName": "search_term_string"
}
}
],
"inLanguage": "en-US"
},
{
"@type": "Organization",
"@id": "https://claphamdoubleglazing.co.uk/#organization",
"name": "Clapham Glazing",
"url": "https://claphamdoubleglazing.co.uk/",
"logo": {
"@type": "ImageObject",
"inLanguage": "en-US",
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"contentUrl": "https://claphamdoubleglazing.co.uk/wp-content/uploads/Clapham.png",
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"caption": "Clapham Glazing"
},
"image": {
"@id": "https://claphamdoubleglazing.co.uk/#/schema/logo/image/"
}
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]
},
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"@type": "LocalBusiness",
"@id": "https://claphamdoubleglazing.co.uk/#business",
"name": "Clapham Double Glazing",
"image": "https://claphamdoubleglazing.co.uk/wp-content/uploads/2025/02/visualizer-1024x796.webp",
"url": "https://claphamdoubleglazing.co.uk/",
"telephone": "02036705969",
"address": {
"@type": "PostalAddress",
"streetAddress": "169A Clapham High St",
"addressLocality": "Clapham",
"postalCode": "zip_code_change",
"addressCountry": "GB"
},
"openingHours": "Mo-Su 08:00-18:00",
"priceRange": "££",
"areaServed": [
"Clapham",
"RH1",
"RH2",
"RH6",
"RH9"
],
"aggregateRating": {
"@type": "AggregateRating",
"ratingValue": "5",
"reviewCount": "152"
},
"sameAs": []
},
{
"@context": "https://schema.org",
"@type": "FAQPage",
"mainEntity": [
{
"@type": "Question",
"name": "What is double glazing and how does it work?",
"acceptedAnswer": {
"@type": "Answer",
"text": "Double glazing involves two panes of glass separated by a sealed gap, often filled with inert gas. This setup improves insulation, reduces outside noise, and increases energy efficiency."
}
},
{
"@type": "Question",
"name": "What areas around Clapham do you cover?",
"acceptedAnswer": {
"@type": "Answer",
"text": "We serve all areas in and around Clapham."
}
},
{
"@type": "Question",
"name": "How long does it take to install new double glazing?",
"acceptedAnswer": {
"@type": "Answer",
"text": "Installation times can vary depending on the number of windows or doors, but most projects are completed within a few days. We'll always give you a clear timeline before starting work."
}
},
{
"@type": "Question",
"name": "Do you offer different styles of windows and doors?",
"acceptedAnswer": {
"@type": "Answer",
"text": "Yes, we provide a range of styles including UPVC and aluminium windows, sliding doors, composite front doors, bifold doors, and even plantation shutters."
}
},
{
"@type": "Question",
"name": "Can double glazing reduce my energy bills?",
"acceptedAnswer": {
"@type": "Answer",
"text": "Absolutely. Modern double glazing helps to retain heat, which can lead to lower heating costs, especially during the colder months in Clapham."
}
},
{
"@type": "Question",
"name": "How are your double glazing quotes calculated?",
"acceptedAnswer": {
"@type": "Answer",
"text": "We base quotes on several factors including the type of product, the number of units, and installation requirements. Every quote is tailored to your specific property and needs."
}
},
{
"@type": "Question",
"name": "Is your pricing fixed once I receive a quote?",
"acceptedAnswer": {
"@type": "Answer",
"text": "Yes, we offer fixed-price quotes with no hidden charges. The price we agree on is the price you pay."
}
},
{
"@type": "Question",
"name": "Do you offer free quotes or home surveys?",
"acceptedAnswer": {
"@type": "Answer",
"text": "Yes, we provide free, no-obligation home surveys and quotes across Clapham and nearby areas."
}
},
{
"@type": "Question",
"name": "Are there financing or payment plans available?",
"acceptedAnswer": {
"@type": "Answer",
"text": "We can discuss flexible payment options and scheduling. Just ask during your quote appointment to see what’s available."
}
},
{
"@type": "Question",
"name": "Do you offer guarantees on your double glazing products?",
"acceptedAnswer": {
"@type": "Answer",
"text": "Yes, all our installations come with a full guarantee for both the product and the installation work, giving you peace of mind for years to come."
}
}
]
},
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"@context": "https://schema.org/",
"@type": "Product",
"name": "Double Glazing & Door Installation Services - Clapham",
"description": "Professional and reliable double glazing services in Clapham. We supply and fit BiFolding Doors, External Sliding Doors, Front Entrance Doors, Composite Doors, UPVC Doors and Windows, Aluminium Windows, and Plantation Window Shutters. We also offer Warm Roof installations, Emergency Glazing, Double Glazing Repairs, Window and Glass Repairs, and Cat Flap Fitting across RH1, RH2, RH6, and RH9. Perfect for anyone looking for window and door services near me.",
"brand": {
"@type": "Brand",
"name": "Clapham Double Glazing"
},
"sku": "double-glazing-services",
"url": "https://claphamdoubleglazing.co.uk/",
"image": "https://claphamdoubleglazing.co.uk/wp-content/uploads/2025/02/visualizer-1024x796.webp",
"aggregateRating": {
"@type": "AggregateRating",
"ratingValue": "5",
"reviewCount": "152"
},
"offers": {
"@type": "Offer",
"priceCurrency": "GBP",
"price": "0",
"priceValidUntil": "2030-12-31",
"itemCondition": "https://schema.org/NewCondition",
"availability": "https://schema.org/InStock",
"seller": {
"@type": "Organization",
"name": "Clapham Double Glazing"
}
},
"keywords": [
"BiFolding Doors Clapham",
"External Sliding Doors Clapham",
"Front entrance doors Clapham",
"Composite Doors Clapham",
"Upvc Doors Clapham",
"Upvc Windows Clapham",
"Aluminium Windows Clapham",
"Plantation Window Shutters Clapham",
"Warm Roof Clapham",
"Emergency Glazing Clapham",
"Double Glazing Repairs Clapham",
"Cat Flap Fitter Clapham",
"window repair Clapham",
"glass repair Clapham",
"double glazing near me",
"window replacement near me",
"door installation near me"
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}
]
/bi-folding-doors/
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"datePublished": "2022-12-29T14:33:00+00:00",
"dateModified": "2025-08-06T16:23:25+00:00",
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"description": "We offer aluminium bifold doors, which add style, functionality, and value to your house or business premises. Our dedicated team will also manage the installation perfectly so you can start enjoying your contemporary, open-plan way of living. Whether you need an interior bi-folding door to divide spaces or a bi-fold door service for your patio, we are here to help. Feel free to contact our professionals for more information.",
"url": "https://claphamdoubleglazing.co.uk/bi-folding-doors/",
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"name": "Clapham Double Glazing"
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"bestRating": "5",
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/external-sliding-doors/
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"datePublished": "2022-12-29T14:33:17+00:00",
"dateModified": "2025-08-06T16:23:49+00:00",
"description": "Find the perfect external sliding doors – from frameless glass to antique styles! ? Upgrade your home today! Call now ?",
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"description": "You can enhance the beauty, security, and functionality of your home with our high-quality sliding doors. We offer expertly manufactured sliding doors that blend modern aesthetics with top-tier performance, making them the perfect choice for any UK homeowner. Alongside our premium products, we provide full installation solutions to ensure a seamless and hassle-free experience. Contact us for any information.",
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"bestRating": "5",
"worstRating": "1",
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/front-entrance-doors/
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"@id": "https://claphamdoubleglazing.co.uk/front-entrance-doors/",
"url": "https://claphamdoubleglazing.co.uk/front-entrance-doors/",
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🛡️ Trust Signals — external proof links that back the declared identity
75Review mentions (all pages)
0External proof links (all pages)
| Page | Reviews | Proof links |
|---|---|---|
| / (home) | 18 | 0 |
| /bi-folding-doors/ | 12 | 0 |
| /external-sliding-doors/ | 12 | 0 |
| /front-entrance-doors/ | 11 | 0 |
| /composite-doors/ | 11 | 0 |
| /upvc-door/ | 11 | 0 |
Explore the other reputation pillars for Clapham Double Glazing
Analysis Disclosure & Source Attribution
This page presents a snapshot of public data from Clapham Double Glazing, captured on May 21, 2026, to show how machine logic reads Identity & Authority signals into an AI reputation evaluation.
Purpose: This data is presented under “Fair Use” for the purpose of independent signal analysis, allowing readers to see the raw signals behind the reputation score.
Notice to Clapham Double Glazing: This analysis is part of a non-adversarial audit conducted by 1 Euro SEO. The results are intended as professional feedback to help improve any website’s machine-readability and authority signals. The evaluation is free, and any company can request a fresh audit at any time.
Any company can use the insights for free and improve its voice. When a company has updated its content, it can always submit a new audit request, which will be reflected in a new current score.
To all users: You are encouraged to visit the live site at https://claphamdoubleglazing.co.uk to view the most current version of its content and see directly what this company is about and what it offers.