How we approach rooflight upstands & kerbs in Grimsby
For Grimsby homes and buildings we offer rooflight upstands & kerbs: insulated kerbs built and waterproofed to suit your rooflight. We measure first, specify to the opening and confirm any planning or building-control points before quoting.
Midlands housing is a mix of Victorian terraces, inter-war semis and newer estates, and rear kitchen extensions with flat rooflights are a common upgrade. Think of rooflight upstands & kerbs for roofs where the old kerb is low, cold or leaking.
We work across Lincolnshire, including Grimsby, and in neighbouring towns such as Cleethorpes and Hull. Access, parking and how the glass reaches the roof are all checked at the survey.
What you can choose
- Raised upstands for deep green or ballasted roofs
- Upstand repairs and rebuilds
- Timber upstands with insulation
- Upstands to suit single-ply, felt, GRP or liquid roofs
- Proprietary insulated kerbs
- Correct height above the finished roof
- Matched to your roof covering
Before you order: points to check
- Upstand size must match the unit within a tight tolerance
- Membrane compatibility with the rooflight's sealants
Planning, building control and Grimsby
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. 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.
Under Approved Document L, a rooflight added to an English home must achieve at least 2.2 W/m²K (horizontal plane), and a roof window 1.4 W/m²K or Window Energy Rating Band B. In an extension, glazing including rooflights is normally limited to 25% of the new floor area plus any windows or doors the extension covers, unless a whole-house calculation shows otherwise.
Read the planning permission guide before you commit to a design.
Guide prices for Grimsby
These are typical supply-and-fit ranges. For an address in Grimsby, scaffold, a hoist for heavy glass, or a new structural opening can move the figure, which is why we survey first.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Large or raised upstand | £715 – £1,195 | £595 – £995 |
| Standard insulated upstand Typical | £475 – £715 | £395 – £595 |
| Small upstand on new roof | £355 – £475 | £295 – £395 |
The process, step by step
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Grimsby address.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Nearby towns
More we do in Grimsby
Questions about rooflight upstands & kerbs in Grimsby
Why is my rooflight cold around the edge?
Usually an uninsulated upstand. Insulating the kerb and lining the reveal fixes most cold spots.
Can an old upstand be reused?
If it is sound, square, insulated and the right size. Often it is cheaper to rebuild than adapt.
How high should a rooflight upstand be?
High enough to meet the rooflight manufacturer's minimum above the finished roof surface — commonly 150 mm. On roofs with deep finishes, such as green roofs, it needs to be taller.
Do you offer rooflight upstands & kerbs in Grimsby?
Yes. We carry out rooflight upstands & kerbs in Grimsby and across Lincolnshire. Send your postcode and we will offer a survey date when we reply.
Is the survey in Grimsby free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
