--- title: "Loft Conversions London, Dormer & Mansard Specialists | Refurb Squad Ltd" description: "Dormer, mansard and hip-to-gable loft conversions across North & West London. Watertight, insulated, building-control signed off, on a fixed-price contract. 12-month workmanship guarantee, £1M insured." lang: en-GB json-ld: | [ { "@context": "https://schema.org", "@type": "Organization", "name": "Refurb Squad Ltd", "legalName": "Refurb Squad Ltd", "url": "https://refurbsquad.co.uk/", "logo": "/__l5e/assets-v1/f9b26d00-6a9f-41e2-bfd0-ed2944fb2706/refurb-squad-favicon.png", "image": "/__l5e/assets-v1/f9b26d00-6a9f-41e2-bfd0-ed2944fb2706/refurb-squad-favicon.png", "telephone": "+44 7460 046234", "email": "office@refurbsquad.co.uk", "founder": { "@type": "Person", "name": "Jay Reid" }, "foundingDate": "2014", "address": { "@type": "PostalAddress", "streetAddress": "124 City Road", "addressLocality": "London", "postalCode": "EC1V 2NX", "addressCountry": "GB" } }, { "@context": "https://schema.org", "@type": "WebSite", "name": "Refurb Squad Ltd", "url": "https://refurbsquad.co.uk/", "publisher": { "@type": "Organization", "name": "Refurb Squad Ltd" }, "inLanguage": "en-GB" }, { "@context": "https://schema.org", "@type": "LocalBusiness", "name": "Refurb Squad Ltd", "image": "/__l5e/assets-v1/f9b26d00-6a9f-41e2-bfd0-ed2944fb2706/refurb-squad-favicon.png", "@id": "https://refurbsquad.co.uk", "telephone": "+44 7460 046234", "email": "office@refurbsquad.co.uk", "address": { "@type": "PostalAddress", "streetAddress": "124 City Road", "addressLocality": "London", "postalCode": "EC1V 2NX", "addressCountry": "GB" }, "openingHoursSpecification": [ { "@type": "OpeningHoursSpecification", "dayOfWeek": [ "Monday", "Tuesday", "Wednesday", "Thursday", "Friday" ], "opens": "08:00", "closes": "16:00" }, { "@type": "OpeningHoursSpecification", "dayOfWeek": "Saturday", "opens": "09:00", "closes": "13:00" } ], "areaServed": [ "St John's Wood", "Paddington", "Kensington", "Bayswater", "Regents Park", "Hampstead", "Hammersmith", "Chiswick", "Ealing Broadway" ], "priceRange": "££££", "founder": { "@type": "Person", "name": "Jay Reid" }, "aggregateRating": { "@type": "AggregateRating", "ratingValue": "5.0", "reviewCount": "3" } }, { "@context": "https://schema.org", "@type": "Service", "name": "Loft Conversions", "serviceType": "Loft Conversions", "areaServed": [ "St John's Wood", "Paddington", "Kensington", "Bayswater", "Regents Park", "Hampstead", "Hammersmith", "Chiswick", "Ealing Broadway" ], "provider": { "@type": "LocalBusiness", "name": "Refurb Squad Ltd", "telephone": "+44 7460 046234", "email": "office@refurbsquad.co.uk", "address": { "@type": "PostalAddress", "streetAddress": "124 City Road", "addressLocality": "London", "postalCode": "EC1V 2NX", "addressCountry": "GB" } }, "description": "Dormer, mansard and hip-to-gable loft conversions across North & West London. Watertight, insulated, building-control signed off, on a fixed-price contract. 12-month workmanship guarantee, £1M insured." }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How much does a loft conversion cost in London?", "acceptedAnswer": { "@type": "Answer", "text": "Every loft is quoted on a fixed-price basis after a feasibility survey. Roof form, dormer size, glazing spec and whether you're adding an ensuite all drive the number. You'll have an itemised written quote back inside 2-3 weeks." } }, { "@type": "Question", "name": "How long does a loft conversion take?", "acceptedAnswer": { "@type": "Answer", "text": "A standard rear-dormer conversion typically runs 8-12 weeks on site. Mansards and larger L-shape wrap-arounds run 12-16 weeks. Design, planning and Party Wall usually add 6-10 weeks before that." } }, { "@type": "Question", "name": "Do I need planning permission?", "acceptedAnswer": { "@type": "Answer", "text": "Rear dormer conversions on terraces often fall under permitted development, but PD rights are restricted in conservation areas, on flats and on some designated streets. Mansards almost always need full planning. We confirm at the feasibility stage." } }, { "@type": "Question", "name": "Will my ceilings crack on the floor below?", "acceptedAnswer": { "@type": "Answer", "text": "Not when the steels are engineered correctly. We use an independent structural engineer to size steels against actual loads, and any decorative cracking during the build is snagged and made good before handover." } }, { "@type": "Question", "name": "What guarantee do you offer on loft conversions?", "acceptedAnswer": { "@type": "Answer", "text": "Every conversion carries our 12-month workmanship guarantee in writing. Manufacturer warranties on glazing and roofing membranes sit on top of that." } }, { "@type": "Question", "name": "Can you add an ensuite in the loft?", "acceptedAnswer": { "@type": "Answer", "text": "Yes, most of our loft conversions include a new bedroom and ensuite. Waste is either connected to the existing soil stack or pumped, depending on the layout." } }, { "@type": "Question", "name": "Do you handle Party Wall Notices?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. Where steels bear into a shared wall, we serve Party Wall Notices as part of the job and coordinate with any appointed surveyor." } }, { "@type": "Question", "name": "Will a loft conversion add value?", "acceptedAnswer": { "@type": "Answer", "text": "In North and West London, a well-executed loft conversion typically adds significantly more to the property value than it costs to build. Specific uplift is best confirmed with a local estate agent against comparable sold prices." } }, { "@type": "Question", "name": "Which areas of London do you cover?", "acceptedAnswer": { "@type": "Answer", "text": "We work throughout North and West London, including St John's Wood, Paddington, Kensington, Bayswater, Regents Park, Hampstead, Hammersmith, Chiswick and Ealing Broadway." } } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "/" }, { "@type": "ListItem", "position": 2, "name": "Services", "item": "/services" }, { "@type": "ListItem", "position": 3, "name": "Loft Conversions", "item": "https://refurbsquad.co.uk/services/loft-conversions" } ] } ] --- 124 City Road, London EC1V 2NX Mon-Fri 8:00-16:00 · Sat 9:00-13:00 [office@refurbsquad.co.uk](mailto:office@refurbsquad.co.uk) [07460 046234](tel:07460046234) [![Refurb Squad Ltd](/__l5e/assets-v1/1a8c6a75-dde4-4cad-91d2-4cb96e5a1b88/logo.png)](/) [Home](/)[About](/about) [Services](/services) [Service Area](/areas) [Our Work](/our-work)[Reviews](/reviews)[Contact](/contact) [07460 046234](tel:07460046234)[Request Estimate](/contact) ![Loft conversion mid-build in a London property showing new stud framing, joists and a Velux roof window fitted by Refurb Squad](/__l5e/assets-v1/1e321bf3-9bf4-4996-9cf0-c7c68356f56c/Loft_Conversions.jpeg) [Home](/)/ [Services](/services)/ Loft Conversions Loft Conversions · London # Loft conversions in London, delivered watertight and signed off. Dormers, mansards and hip-to-gable conversions built to spec, structural steels, insulation, fire-rated staircases, dormer glazing and second-fix all inside one fixed-price contract. Typical dormer conversion: 8-12 weeks on site. [Request a free estimate](/contact) [07460 046234](tel:07460046234) 5.0★ on Google · Constructionline Gold · Written quote back in the same week. 15 yrs On the tools £1M Public liability 5.0★ Google rated 12 mo Workmanship guarantee Same wk Written quote Service overview ## Loft conversions engineered for London terraces ### What it is A full loft conversion covers structural design, planning or permitted-development submission, Party Wall Notices, structural steels, dormer or mansard build, roof insulation, fire-rated protected staircase, first fix, second fix, and internal finishing including a new ensuite where required. ### Who it's for Owners of London terraces, semis and townhouses looking to add a master bedroom with ensuite, a second family bathroom, a home office or a teenager's suite without the disruption of moving. ### When you need it Most owners convert when a growing family has outgrown the existing bedroom count, when a home office is now permanent, or when they're extending downstairs and want to add the loft in the same programme to avoid two waves of disruption. ### Why professional matters A loft is a structural project sitting on top of your family home. Getting the steels, the fire strategy and the roof detailing right is what makes the difference between a warm, quiet, dry additional floor and a room that leaks, freezes and fails building control. The cost of getting it wrong ## What goes wrong when a loft is done cheaply The most common failure modes on loft conversions are structural, fire-safety and thermal. All three are invisible until they aren't. If ignored - Steels that deflect Undersized steels deflect under load, cracking new plasterboard ceilings on the floor below within the first winter. - Fire strategy failures The staircase up to a loft becomes a protected escape route. Get the fire-doors, plasterboard specification or self-closers wrong and building control won't sign off, full stop. - Cold roofs, warm bills Insulation stuffed between rafters without a ventilated void condenses in winter. You get sagging plasterboard, black mould at ridge lines, and heating bills you can't explain. - Bad dormer detailing = leaks The join between an old slate roof and a new flat-roof dormer is the #1 failure point of cheap conversions. It leaks quietly for months before you see the stain on the ceiling below. Common mistakes - Skipping the Party Wall step Loft steels almost always bear into party walls. Skip the notices and a neighbour can stop the job at inspection. - Choosing lowest-price glazing Roof-window and dormer glazing spec matters, u-values, solar-gain and acoustic ratings all drive comfort in a top-floor room. - Cutting the staircase short Head-height at the top of a new loft stair is regulated. Get it wrong and you're rebuilding the stair after building control refuses to sign off. How it works ## A step-by-step system, not a guess. 1. 01 Step 1 ### Feasibility survey We measure head-heights, check the roof structure and confirm what's achievable, dormer, mansard, hip-to-gable or a straight rooflight conversion. Free locally. 2. 02 Step 2 ### Design & fixed quote Structural engineer sign-off, architectural drawings, and a fixed itemised quote back inside 2-3 weeks. 3. 03 Step 3 ### Planning & Party Wall Permitted development or planning submission, Party Wall Notices served, building control appointed. 4. 04 Step 4 ### Structural build Steels installed, dormer/mansard framed, roof made watertight, insulation and vapour control installed to spec. 5. 05 Step 5 ### Sign-off & guarantee Building control completion certificate, fire strategy signed off, snag-free handover, 12-month workmanship guarantee. What you actually get ## Concrete outcomes, not adjectives. ### Fixed-price contract No day-rate creep. The quote is the invoice. ### Correctly sized steels Steels engineered against actual loads, not guessed at. No sagging ceilings on the floor below. ### Fire strategy done right Protected staircase, FD30 fire doors and plasterboard spec detailed against building regs Part B. ### Warm roof detailing Ventilated or fully-warm roof strategy, correctly detailed to eliminate condensation. ### Building control handled Planning, Party Wall, building regs and completion, arranged as part of the job. ### 12-month guarantee Written workmanship guarantee, plus manufacturer warranties on glazing and roofing. Materials & methods ## Loft conversion types & construction methods The right loft type depends on your existing roof pitch, ridge height, and whether you're in a conservation area. Here's the range we build. ### Materials we work with - Structural steel schedules designed by an independent engineer - Timber and engineered-joist floor structures over new steels - Warm-roof insulation systems (PIR / mineral wool) with vapour control layers - Slate, tile and single-ply membrane dormer roof finishes - Aluminium, timber and uPVC dormer glazing to spec - Velux and Fakro conservation-grade rooflights - FD30 fire doors, self-closers and mains-linked smoke detection ### Methods & standards - Steel design and sign-off by an independent structural engineer - Party Wall Awards where steels bear into shared walls - Fire strategy detailed to Approved Document B - Warm-roof or fully-ventilated-cold-roof insulation strategy chosen against roof form - Building control inspections at structure, insulation and completion ### Variations of this service Rear dormer conversion The most common London loft type, a flat-roof dormer to the rear of a Victorian or Edwardian terrace. Adds full head-height across the loft footprint. L-shape / wrap-around dormer Standard rear dormer combined with an infill over the back-addition roof. Maximises floor area on tight terraces. Mansard conversion Reshapes the roof with a near-vertical front and rear slope. Highest volume; usually requires planning permission. Hip-to-gable conversion Converts a hipped side roof into a vertical gable, adding significant volume on semis and end-of-terrace houses. Velux / rooflight conversion Minimal external change, rooflights only. Suited to properties with existing generous head-height and conservation-area restrictions. ### Property types & settings We convert lofts in Victorian and Edwardian terraces, mansion-block top floors (subject to freeholder consent), 1930s semis and Georgian townhouses across North and West London. ### Areas we cover - [St John's Wood](/areas/st-johns-wood) - [Paddington](/areas/paddington) - [Kensington](/areas/kensington) - [Bayswater](/areas/bayswater) - [Regents Park](/areas/regents-park) - [Hampstead](/areas/hampstead) - [Hammersmith](/areas/hammersmith) - [Chiswick](/areas/chiswick) - [Ealing Broadway](/areas/ealing-broadway) Answers ## Straight answers, before you call. Still not sure? Call Jay directly on [07460 046234](tel:07460046234). How much does a loft conversion cost in London? Every loft is quoted on a fixed-price basis after a feasibility survey. Roof form, dormer size, glazing spec and whether you're adding an ensuite all drive the number. You'll have an itemised written quote back inside 2-3 weeks. How long does a loft conversion take? A standard rear-dormer conversion typically runs 8-12 weeks on site. Mansards and larger L-shape wrap-arounds run 12-16 weeks. Design, planning and Party Wall usually add 6-10 weeks before that. Do I need planning permission? Rear dormer conversions on terraces often fall under permitted development, but PD rights are restricted in conservation areas, on flats and on some designated streets. Mansards almost always need full planning. We confirm at the feasibility stage. Will my ceilings crack on the floor below? Not when the steels are engineered correctly. We use an independent structural engineer to size steels against actual loads, and any decorative cracking during the build is snagged and made good before handover. What guarantee do you offer on loft conversions? Every conversion carries our 12-month workmanship guarantee in writing. Manufacturer warranties on glazing and roofing membranes sit on top of that. Can you add an ensuite in the loft? Yes, most of our loft conversions include a new bedroom and ensuite. Waste is either connected to the existing soil stack or pumped, depending on the layout. Do you handle Party Wall Notices? Yes. Where steels bear into a shared wall, we serve Party Wall Notices as part of the job and coordinate with any appointed surveyor. Will a loft conversion add value? In North and West London, a well-executed loft conversion typically adds significantly more to the property value than it costs to build. Specific uplift is best confirmed with a local estate agent against comparable sold prices. Which areas of London do you cover? We work throughout North and West London, including St John's Wood, Paddington, Kensington, Bayswater, Regents Park, Hampstead, Hammersmith, Chiswick and Ealing Broadway. ![London roofing preparation with battens and breathable membrane used as a refurbishment call-to-action background](/__l5e/assets-v1/3d2e06f4-c5bb-4116-a2a3-2220a1df9443/Roofing_2.jpeg) Book your free survey ## Ready to price your loft conversions the honest way? One site visit. One fixed-price written quote back the same week. No pressure, no hard sell, just the number and the plan to deliver it. [Request your free estimate](/contact) [07460 046234](tel:07460046234) - Free local survey - Written quote the same week - Fixed-price, staged payments - 12-month workmanship guarantee Related services ## Other work we deliver [View all services](/services) [ Service ### House Extensions Learn more ](/services/house-extensions)[ Service ### Full Renovations Learn more ](/services/renovations)[ Service ### Bathroom Installation Learn more ](/services/bathroom-installation) ![Refurb Squad Ltd](/__l5e/assets-v1/1a8c6a75-dde4-4cad-91d2-4cb96e5a1b88/logo.png) Premium bathroom, kitchen and full-property renovations across North & West London. Founded by Jay Reid, 15 years on the tools, PRINCE2 project management, Gas Safe registered. [07460 046234](tel:07460046234) [office@refurbsquad.co.uk](mailto:office@refurbsquad.co.uk) 124 City Road, London EC1V 2NX [5.0★ on Google, read our reviews](/reviews)[Leave us a Google review](https://search.google.com/local/writereview?placeid=ChIJm3KT4cJpXwQRjsaNr8_GV4w) [](https://www.instagram.com/refurbsquad)[](https://www.facebook.com/share/197CgwmVVy/?mibextid=wwXIfr) Services - [Bathroom Installation](/services/bathroom-installation) - [Kitchen Installation](/services/kitchen-installation) - [House Extensions](/services/house-extensions) - [Loft Conversions](/services/loft-conversions) - [Full Renovations](/services/renovations) - [Commercial Fit-Out](/services/commercial) Service Areas - [St John's Wood](/areas/st-johns-wood) - [Paddington](/areas/paddington) - [Kensington](/areas/kensington) - [Bayswater](/areas/bayswater) - [Regents Park](/areas/regents-park) - [Hampstead](/areas/hampstead) - [Hammersmith](/areas/hammersmith) - [Chiswick](/areas/chiswick) - [Ealing Broadway](/areas/ealing-broadway) Hours - Mon-Fri · 8:00-16:00 - Saturday · 9:00-13:00 - Sunday · Closed - 24 Hrs on the Line Accredited - Gas Safe Registered - Constructionline Gold - CHAS Accredited - £1M Public Liability © 2026 Refurb Squad Ltd. 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