How Much Does a VELUX Window Cost to Install in Cheltenham?

As an indicative 2026 UK guide, a VELUX roof window typically costs between £900 and £2,500 supplied and fitted per window, depending on size, glazing, operation and roof access. The only accurate figure for your home is a fixed written quote after a free survey. We install VELUX products.

VELUX is a name most people recognise, and for good reason. The price you pay depends less on the brand and more on which model, what glass, and how easy your roof is to work on. Here is a realistic breakdown.

VELUX window prices at a glance (2026 guide)

• Small manual window (e.g. 550 x 780mm), easy pitch: £900–£1,300 supplied and fitted
• Medium manual window (e.g. 780 x 1180mm): £1,200–£1,700
• Large manual window (e.g. 940 x 1600mm): £1,600–£2,100
• Electric or solar-operated window: add roughly £350–£700 over the manual equivalent
• Premium glazing or finishes: £2,000–£2,500+

These are indicative per-window figures covering the window, flashing kit, weatherproofing and our installation labour. They assume a like-for-like position in an existing pitched roof. Forming a brand-new opening or internal plaster reveals would be priced separately at survey.

What affects the cost of a VELUX window

Size of the window

Larger windows cost more in both the unit and the labour to lift and seal them. Going up a size or two has the single biggest effect on price.

Manual, electric or solar

A manual centre-pivot window is the most economical. Electric and solar-powered openers add convenience, rain sensors and remote control, but carry a premium and, for electric, may need a nearby power supply.

Glazing choice

Standard double glazing is the baseline. Upgrades for noise reduction, solar control, enhanced security or triple glazing all add to the unit cost.

Roof type and access

Tiled and slate roofs use different flashing kits, and steeper or higher roofs may need scaffolding or a tower. Replacing an existing roof window in the same spot is usually cheaper than forming a new opening.

New opening vs replacement

A straight replacement is the simplest job. Creating a new opening means cutting and trimming rafters and finishing the internal reveals, which adds materials and labour.

Cost in Cheltenham & the Cotswolds: roof coverings matter

For VELUX work, the single biggest local variable around Cheltenham and Gloucestershire is what your roof is covered with, because the flashing kit follows the material. The plain clay and concrete tiles on the inter-war and post-war estates across Hatherley, Warden Hill, Charlton Kings and Bishop’s Cleeve take a standard tile flashing and are quick and predictable to fit. Cotswold stone slate is a different story. On older properties around Winchcombe, the villages north of Cheltenham and out towards Cirencester and the wider Cotswold District, natural stone slate is thicker, heavier and laid in diminishing courses, so it needs a recessed installation and a slate flashing kit, and the labour to dress it neatly is greater. Welsh slate on Victorian roofs in Gloucester and the older parts of Stroud sits between the two.

Most of our VELUX jobs locally are loft and bedroom replacements where a tired older roof window is swapped like-for-like — the cleanest, most economical work there is. New openings in loft conversions are common across the larger Cheltenham semis, where there is genuine head height to gain, and these naturally cost more because of the structural and plastering work.

Conservation areas and where a standard VELUX is not the answer

On a rear or side roof slope that is not visible from the street, a standard VELUX is usually fine even within Cheltenham’s Regency and Victorian conservation areas. Where the window would face a public street, or on a listed building, planners and conservation officers frequently want a low-profile heritage rooflight instead — we cover that on our conservation rooflight cost page. Building control for the installation runs through Cheltenham Borough Council, Tewkesbury Borough Council, Cotswold District Council or Stroud District Council depending on your address. Any consent is separate from our pricing, and we will tell you at survey which way the land lies.

Worked examples

Example 1 — loft bedroom replacement. One medium manual window swapped like-for-like on a tiled roof with tower access. Indicative total around £1,300–£1,600.

Example 2 — two electric windows, new openings. Two large solar-powered windows in a loft conversion, including reveals. Indicative total around £4,500–£5,500 for the pair, depending on access and finishing.

Example 3 — Cotswold stone slate cottage. One medium manual window on a natural stone slate roof near Winchcombe, recessed to suit the heritage detail with a slate flashing kit. Indicative total around £1,700–£2,100, reflecting the extra dressing work the stone demands.

These figures set expectations only. The accurate price is the fixed written quote after we survey your roof.

Ways to keep the cost sensible

• Fit more than one at once. Survey and access costs spread across several windows reduce the per-window figure.
• Choose operation to suit the room. A manual window over a stairwell may be all you need; reserve electric for out-of-reach positions.
• Replace like-for-like where possible. Reusing the existing opening avoids structural and plastering work.
• Time it with other roof work. Shared scaffolding lowers access costs.
• Mind the covering. If yours is stone slate, expect the dressing work to add a little; it is the material, not the window, doing it.

Why the quote matters more than the guide

Roof pitch, covering, access and your choice of window and glass all feed into the real cost. We carry out a free survey, then issue a fixed written quote so you know exactly what you are paying, with our written guarantee on our workmanship.

Read more on our VELUX window installation page, see the wider picture on our skylight cost guide, or get a quote for your fixed price after a free survey.