Flat Roof Lights & Lanterns
Introduce natural daylight to loft conversions and single-storey extensions with purpose-made flat roof lights and glazed lanterns across Essex, Hertfordshire and London.
Reliable Flat Roof Lights & Lanterns for Extension Homes
Every Flat Roof Lights & Lanterns project starts with a free, measured survey and technical template to specify kerb heights, upstands and waterproof junctions before any glazing is ordered. A three-stage process — survey and specification, factory-led product selection, then NVQ-qualified installation and watertight integration — protects the building fabric and internal finish. Clear written quotes and free no-obligation site visits are provided across Essex, Hertfordshire and London, backed by 18 years' roofing experience and manufacturer-backed guarantees where available.
How It Works
Measured Site Survey
A site survey is carried out, structural details recorded, kerb heights set and drainage noted so the specification prevents water ingress and meets building regs.
Product Selection & Specification
The glazing system, thermal performance and flashings are chosen to suit the roof build-up and guarantee requirements, with a written quote provided.
NVQ‑Qualified Installation
The kerb is set up, tied into the existing roofing system, junctions sealed with manufacturer kits and handed over with guarantee paperwork and maintenance advice.
Why Choose us for Flat Roof Lights & Lanterns?
Watertight integration with the roof
Kerbs, upstands and flashings are detailed to match felt, asphalt or single-ply systems so the glazed unit becomes part of the roof, not a risk to it.
Qualified fitters & manufacturer backing
NVQ-qualified operatives and manufacturer-backed guarantees provide reassurance on performance and longevity, with warranty terms listed on the quote.
Transparent process and local experience
Free measured surveys, clear written quotes and 18 years' experience across Essex, Hertfordshire and London make planning and installation straightforward.
Products and suitability. Flat roof lights are low-profile glazed units ideal for smaller extensions and loft conversions where headroom is limited. Roof lanterns are a raised, multi-faceted glazed structure for larger single-storey extensions or orangery-style spaces. JLT Roofing works with manufacturers to specify glass, thermal performance and inward-opening vents where required, matching the unit to the roof build-up.
Technical installation and waterproofing. Correct kerb construction, upstand height and flashing detail are critical. NVQ-qualified operatives install timber or insulated kerbs, tie the glazing into felt, asphalt or flat-roof membrane systems and, where necessary, carry out leadwork and welding or supply manufacturer flashing kits to ensure a long-term, watertight junction.
Site practice and handover. The interior is protected, waste removed and a final water-tightness check carried out before handover with written care instructions and warranty paperwork. For a free measured survey and specification, call 07974953162 or email jacktrim@jltroofing.co.uk. JLT Roofing covers Essex, Hertfordshire and London and brings 18 years' practical roofing experience to every installation.
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Book a free measured survey
Arrange a no-obligation site visit and written quote — call 07974953162 or email jacktrim@jltroofing.co.uk.