What do frameless structural rooflights in Rochester involve?
We handle frameless structural rooflights across Kent, including Rochester. In short: minimal glass rooflights with no visible frame from inside. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
Across the South East, single-storey kitchen extensions on 1930s semis and post-war detached houses are where most flat rooflights and lanterns go. In Rochester, as anywhere, frameless structural rooflights are the usual choice for architect-led extensions and long slots of light over islands or along party walls.
From Rochester to Chatham, Strood and Gillingham, the same survey-first process applies: measure, specify, fix the price, then fit.
Options we can specify in Rochester
- Solar-control coatings
- Triple glazing
- Butt-jointed runs for long openings
- Shadow-gap or plastered reveal
- Low-iron extra-clear glass
- Solar-control and low-iron glass options
- Long, slim or very large formats
Things we check at survey
- Tolerances are tight — the opening must be built square and to size
- Structural glass specification comes from the manufacturer
Planning, building control and Rochester
In England a rooflight on a house is usually permitted development under Class C if it projects no more than 150 mm beyond the roof slope and sits no higher than the ridge. A rooflight on a side-facing slope must be obscure-glazed, and fixed shut unless the opening part is more than 1.7 m above the floor.
For English homes the energy rules ask for rooflights of 2.2 W/m²K or better and roof windows of 1.4 W/m²K (or WER Band B); most modern double glazed units meet both. Replacing a rooflight or roof window can be self-certified by an installer registered with an authorised competent person scheme; otherwise building control approval is needed.
Read the planning permission guide before you commit to a design.
Guide prices for Rochester
Guide prices for frameless structural rooflights in Rochester are the same as anywhere we work — what changes the price is the job: access, structure, scaffold and finishing.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Long-format or jointed run | £6,595 – £11,995 | £5,495 – £9,995 |
| Large single pane Typical | £4,795 – £7,195 | £3,995 – £5,995 |
| Standard frameless unit | £3,595 – £4,795 | £2,995 – £3,995 |
The process, step by step
- Send the details. Postcode, rough size and a photo of the roof and room.
- Measure and check. A surveyor visits Rochester, measures and checks structure and access.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Frameless structural rooflights near Rochester
Related work in Rochester
Frameless structural rooflights in Rochester: questions
Can it open?
Some frameless designs include a sliding or hinged opening element, but most are fixed. Pair with an opening unit if you need ventilation.
Will I see the edge of the glass?
From inside, the reveal is finished up to the glass so the edge is hidden. From outside you will see the glass and its edge seal.
Does it cost more?
Usually, because the glass is larger and heavier and the finish needs tighter tolerances. The price table shows typical ranges.
Is the survey in Rochester free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
Will I need planning permission in Rochester?
English householder permitted development (Class C) normally covers rooflights that stand no more than 0.15 m proud of the roof plane and stay below the highest part of the roof.
