--- title: "Bi-Fold Doors Harlow | Aluminium Bi-Folds Fitted in CM17" description: "Aluminium bi-fold doors supplied and fitted across Harlow, Essex (CM17, CM18, CM19 and CM20). Free survey in 3–5 working days, own fitting team, 10-year workmanship guarantee." lang: en-GB json-ld: | { "@context": "https://schema.org", "@graph": [ { "@type": "Service", "@id": "https://www.bifoldsdirectessex.co.uk/bi-fold-doors-harlow/#service", "serviceType": "Bi-Fold Door Installation", "name": "Bi-Fold Doors in Harlow", "description": "Aluminium bi-fold doors supplied and fitted across Harlow, Essex (CM17, CM18, CM19 and CM20). Free survey in 3–5 working days, own fitting team, 10-year workmanship guarantee.", "provider": { "@id": "https://www.bifoldsdirectessex.co.uk/#business" }, "areaServed": { "@type": "City", "name": "Harlow", "address": { "@type": "PostalAddress", "addressRegion": "Essex", "addressCountry": "GB" }, "geo": { "@type": "GeoCoordinates", "latitude": 51.7724, "longitude": 0.0944 } }, "url": "https://www.bifoldsdirectessex.co.uk/bi-fold-doors-harlow/" }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How much do bi-fold doors cost in Harlow?", "acceptedAnswer": { "@type": "Answer", "text": "Price depends on the opening width, the number of panes, the glass spec and the threshold detail, so we don't publish figures that would only mislead. Every Harlow quote is itemised — frames, glass, fitting and disposal listed separately — after a free survey." } }, { "@type": "Question", "name": "How quickly can you survey a bi-fold door job in Harlow?", "acceptedAnswer": { "@type": "Answer", "text": "Most Harlow surveys (CM17, CM18, CM19 and CM20) are booked within 3–5 working days. Quote slots run 7am–8pm, seven days a week, and there's no deposit taken at the visit." } }, { "@type": "Question", "name": "Do you fit aluminium or PVC bi-folds in Harlow?", "acceptedAnswer": { "@type": "Answer", "text": "Aluminium is what we recommend and fit for almost every Harlow project — slimmer sightlines, larger pane sizes and a far longer frame life. If you want to compare, read our guide on aluminium vs PVC bi-fold doors." } }, { "@type": "Question", "name": "How long does a bi-fold installation take in Harlow?", "acceptedAnswer": { "@type": "Answer", "text": "A straightforward replacement into an existing opening is usually a single day. If the opening is being formed or altered as part of an extension, we survey after first-fix and fit once the structural work and floor levels are finalised." } }, { "@type": "Question", "name": "Which parts of Harlow do you cover?", "acceptedAnswer": { "@type": "Answer", "text": "All of CM17, CM18, CM19 and CM20, including Old Harlow, Sawbridgeworth, Roydon, Church Langley, Potter Street. Same survey, same in-house fitting team and same guarantee wherever you are in the area." } }, { "@type": "Question", "name": "Are your bi-fold installs in Harlow guaranteed and certificated?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. Installations are Certass-notified on your behalf within 30 days, aluminium frames carry a 25–30 year manufacturer warranty depending on system, sealed units carry 10 years, and our workmanship is guaranteed for 10 years in writing." } } ] }, { "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.bifoldsdirectessex.co.uk/" }, { "@type": "ListItem", "position": 2, "name": "Doors", "item": "https://www.bifoldsdirectessex.co.uk/doors-essex/" }, { "@type": "ListItem", "position": 3, "name": "Bi-Fold Doors", "item": "https://www.bifoldsdirectessex.co.uk/bi-fold-doors-essex/" }, { "@type": "ListItem", "position": 4, "name": "Harlow", "item": "https://www.bifoldsdirectessex.co.uk/bi-fold-doors-harlow/" } ] } ] } --- We use essential cookies to run this site and, with your consent, analytics cookies to measure enquiries. [Cookie Policy](/cookie-policy/) AcceptReject [![Bi Folds & Windows Direct of Essex logo](/assets/bde-logo-DjJb1e2T.png)](/) Services Areas [About](/about/)[Our Work](/our-work/)[Reviews](/reviews/)[Contact](/contact/) [07903 632039](tel:+447903632039)[Get a Free Quote](/contact/) Summer Offer Bi-folding doors **£680 per panel** [Get a free quote](/contact/) ![Harlow — double glazing and rooflight installation coverage area, modernist new-town residential street](/assets/18-B2ep7GoH.jpeg) 1. [Home](/) 2. [Doors](/doors-essex/) 3. [Bi-Fold Doors](/bi-fold-doors-essex/) 4. Harlow Bi-Fold Doors · Essex # Bi-Fold Doors in Harlow Modern A-rated double glazing, flat rooflights and aluminium bi-folds fitted across Harlow new town and the surrounding villages. Specialists in modernist post-war housing stock and the Old Harlow conservation area. [Get a Free Quote](/contact/) [07903 632039](tel:+447903632039) CM17, CM18, CM19 and CM20 · Surveys in 3–5 working days · 10-year workmanship guarantee Local Detail ## Bi-fold doors fitted across Harlow Harlow is the most architecturally distinctive area we work in. Frederick Gibberd's master plan delivered a town where modernist 1950s–1960s housing dominates, and original Crittall-style steel-framed windows are still in service on a meaningful proportion of properties — much of it now in serious need of replacement. Modern aluminium replacement frames replicate the slim sightlines of the original Crittall installs without the cold-bridging or corrosion. We've done this kind of replacement repeatedly across CM18, CM19 and CM20. Old Harlow and parts of Sawbridgeworth are conservation areas where character must be preserved — careful timber-effect replacements are usually the route. Harlow Council is the local authority. Quote slots inside five working days. **Housing stock we work with here:** Frederick Gibberd-era 1950s–1960s modernist housing, original Crittall-glazed properties, plus Old Harlow conservation-area period homes and modern Church Langley new-build estates. Our vans are around Harlow Town Park, the M11 corridor, Stansted Airport approach most weeks, so survey and aftercare visits in Harlow are easy to diarise. Why Us ## Why Harlow homeowners choose us for bi-folds ### Crittall replacement specialists Slim-frame aluminium replicates the original Crittall sightlines without the cold-bridging. We've done this regularly across Harlow's modernist stock. ### Conservation-aware approach Old Harlow conservation properties get timber-effect aluminium or like-for-like replacement. We won't suggest changes that would force a planning refusal. ### Survey within 3–5 working days CM17–CM20 quote slots open 7am–8pm seven days. Most Harlow visits booked the same week as enquiry. ### Flat rooflight specialists 1960s flat-roof extensions are a Harlow specialty. We install frameless, hinged and walk-on rooflights with full lead flashing detail. ### Certass-notified, council-clean Notification with Harlow Council handled in-house. Compliance certificate posted within 30 days. ### 10-year workmanship guarantee Every Harlow install. Aftercare adjustments first 12 months. What goes wrong ## Bi-fold problems we get called out to in Harlow ### End-of-life Crittall steel windows Original Harlow Crittall is corroded, cold and frequently single-glazed. Slim-frame aluminium is the modern equivalent that respects the original look. ### Flat-roof rooflights leaking at flashing Common on 1960s extensions where the flashing was never properly dressed. Re-detail at the time of replacement is essential. ### Cold-bridging on original 1960s frames Single-glazed steel frames lose huge heat. Replacement A-rated argon units transform thermal performance and dramatically reduce condensation. ### Listed/conservation restrictions in Old Harlow Old Harlow conservation rules limit external changes. Careful timber-effect replacement is the usual route — we'll confirm what's permitted at survey. Process ## How a Harlow bi-fold install runs 1. 01 ### Free survey We measure the opening, check the threshold and the lintel, and talk through pane counts and stacking direction on site. 2. 02 ### Configuration & spec Pane split, stacking side, traffic door position, RAL frame colour, glass spec and threshold type — all confirmed in writing. 3. 03 ### Manufacture Frames are made to your surveyed sizes. We confirm the install date once they leave the factory. 4. 04 ### Installation Old doors out, track laser-levelled and DPM'd, frames set square, every panel tested through its full fold before we leave. 5. 05 ### Sign-off & guarantee Operation walk-through, Certass notification within 30 days, and a 10-year workmanship guarantee in writing. Recent Work ## Recent bi-fold door jobs near Harlow ![New flat glass rooflight installed in the flat-roof extension of a 1960s modernist home in Harlow](/assets/21-D-SqonRD.jpeg) Flat rooflight in Harlow (CM20) — 2025 1.5m × 1.0m frameless flat rooflight on a flat-roof extension. Self-cleaning glass, U-value 1.0 W/m²K, fitted in a single day with full lead flashing detail. FAQs ## Bi-fold door questions from Harlow homeowners ### How much do bi-fold doors cost in Harlow? ### How quickly can you survey a bi-fold door job in Harlow? ### Do you fit aluminium or PVC bi-folds in Harlow? ### How long does a bi-fold installation take in Harlow? ### Which parts of Harlow do you cover? ### Are your bi-fold installs in Harlow guaranteed and certificated? Nearby & Related ## Bi-fold doors in nearby areas - [Bi-fold doors in Hertford](/bi-fold-doors-hertford/) - [Bi-fold doors in Chelmsford](/bi-fold-doors-chelmsford/) - [Bi-fold doors in Brentwood](/bi-fold-doors-brentwood/) ### Related pages - [Bi-fold doors in Essex](/bi-fold-doors-essex/) — full specification, systems and guarantee detail. - [All services in Harlow](/areas/harlow/) — windows, doors, lanterns and glazing locally. - [Sliding doors](/sliding-doors-essex/) — the alternative where you want fewer, wider panes. - [Aluminium vs PVC bi-fold doors](/aluminium-vs-pvc-bifold-doors/) — how the two compare on sightlines and lifespan. ## Get a free bi-fold door quote in Harlow Free survey across CM17, CM18, CM19 and CM20, usually within 3–5 working days. Itemised written quote, no deposit at survey. [Get a Free Quote](/contact/) [07903 632039](tel:+447903632039) ![Bi Folds & Windows Direct of Essex](/assets/bde-logo-DjJb1e2T.png) Family-run installer of bi-fold doors, aluminium windows, double glazing and roof lanterns. Covering Essex and the surrounding counties with 10+ years of trade experience. 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