Showroom & factory: 66 Montgomery St, Birmingham, B11 1DU Mon–Fri 9–5 / Sat 9–12 Call 0800-1-123-123 WhatsApp 07481 798482
HI Q WINDOWS
Windows • Doors • Rooflight Specialists
Aluminium Roof Lanterns & Skylights

Slim-frame lantern roofs that flood your kitchen with daylight — without the draughts.

Our thermally broken aluminium lantern roofs bring in serious natural light and look incredible from the inside. They’re engineered to stay warm in winter, cool in summer and watertight all year round, using advanced thermal break technology for ultra-low heat transfer.

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Modern kitchen extension with slim-frame aluminium roof lantern letting in natural daylight
Thermally broken
Internal & external aluminium separated to cut heat loss.
All-year comfort
Warm in winter, cool in summer — not like old polycarbonate conservatories.
Ultra-slim look
Low 20° pitch with minimal capping, so you mainly see sky.
Installed by us
Survey, supply and installation by HI Q WINDOWS in Birmingham & West Midlands.

A better lantern roof for modern extensions

This system was designed from scratch as a high-performance aluminium lantern. It’s not an old-style conservatory roof. You get sleek lines, maximum glass, minimal frame, and proper thermal engineering throughout the structure — including the ridge, rafters and perimeter beam.

Open-plan kitchen diner with slim aluminium lantern roof and bright natural light
Close-up detail of insulated lantern frame and internal finish around the glass
Fully thermally broken
Every structural element is separated internally and externally using polyamide thermal breaks. That material is up to 533× more thermally efficient than aluminium, massively reducing heat loss through the frame and helping keep your heating bills down.
Low profile lantern roof with slim ridge and discreet perimeter beam
Ultra-slim, low profile
The lantern sits at a low 20° pitch for that modern flat-roof look. Purpose-designed cappings keep sightlines thin so you mainly see sky from below. From above, you see glass and a neat shadow line — not a chunky ridge.
Roof lantern configuration options: 2-way, 3-way, 4-way, and contemporary no-ridge style, with maximum sizes
Sizes up to 3m × 6m
Available in 2-way, 3-way, 4-way or contemporary ‘no central ridge’ style. Max dimensions go up to 3000mm × 6000mm depending on style — perfect for big kitchen / diner extensions, orangery-style builds and flat roofs you actually want to live under.

Styled to match your home

Choose deep Anthracite Grey (RAL 7016) for an architectural look, bright White (RAL 9016) for a clean interior feel, or even mix — grey outside / white inside. Both are durable powder-coated finishes made to last with minimal maintenance.

The ‘contemporary’ layout supports the glass ridge on the hip rafters only, so there’s no bulky central ridge bar. It’s a minimalist, uninterrupted view of the sky — perfect over an island or dining table.

  • Anthracite Grey (RAL 7016)
  • White (RAL 9016)
  • Grey outside / white inside option
  • Contemporary ridge-less design available
Slim-frame lantern roof in modern dark powder coated finish
Performance & sizing
Strong, insulated aluminium structure. Slim sightlines. Built for UK weather. Engineered for kitchen diners, flat-roof extensions and orangery-style rooms that you want to use all year, not just in summer.
Thermal performance
Fully thermally broken frame helps keep rooms warm in winter and cool in summer.
Polyamide / glass composite thermal breaks are up to 533× more efficient at resisting heat transfer than aluminium alone.
Reduces condensation and cuts heat loss through the lantern frame.
Sightlines & pitch
Low 20° pitch = sleek modern look and minimal external bulk.
Purpose-designed cappings keep visible bar width down so you mainly see glass.
Discreet dark perimeter beam gives a clean shadow line from above.
Configurations
2-way, 3-way, 4-way and contemporary designs.
Contemporary style uses the hip rafters to support the ridge — no bulky central ridge bar. Super minimal.
Ideal over a kitchen island or dining table feature.
Maximum sizes
Up to 3000mm × 6000mm (3m × 6m) in multi-beam layouts.
2-way design: up to 1500mm × 6000mm.
4-way design: up to 2000mm × 2000mm.
Contemporary (ridge-less): up to ~1500mm × 3000mm.
Larger 4-way lanterns (over ~1.5m × 1.5m) may be limited in higher snow load areas (1.07kN/m²). We confirm suitability on survey.
Finishes & maintenance
Powder-coated aluminium exterior for long-term durability.
Anthracite Grey or White as standard, mix-and-match available.
Low maintenance wipe-clean surfaces.
Use of space
Turns dark rooms into bright, open, all-day living spaces for cooking, entertaining and relaxing.
Ideal for new flat-roof extensions or replacing old lanterns.
Keeps the “wow” factor without turning the room into a greenhouse.

Surveyed, supplied & installed by HI Q WINDOWS

We handle everything: measuring the opening, confirming structural details, ordering the lantern to size, fitting it correctly with proper sealing, and finishing it neatly. You get documentation, warranty and a direct line back to us. No stress.

Professional lantern roof installation and finished internal detailing
Bright open-plan extension with slim-frame lantern roof

Want a price for your extension roof?

Send us a photo of your flat roof from inside and outside, plus rough opening dimensions (width × length). We’ll confirm which lantern layout fits — 2-way, 3-way, 4-way or contemporary — and send you a written quote.

We’ll also tell you if any structural changes are needed, and talk through colour choices so the lantern ties in with your kitchen, frames and bi-fold doors.

  • Advice without a pushy sales visit
  • Written quote you can keep
  • Installed by our own team
Ready for a roof lantern quote?
WhatsApp us a photo of your ceiling and roof from inside and outside. We’ll confirm which lantern size fits, explain the options and give you a proper price in writing.
WhatsApp: 07481 798482
Visit: 66 Montgomery St, Birmingham, B11 1DU
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