How much does a Velux window installation cost in 2026?

A typical Velux roof window installation in Staffordshire ranges from around £800 for a small replacement in an existing roof opening (no scaffolding needed) to £2,500+ for a larger new install requiring scaffolding, plasterwork, and a more expensive Velux model. The biggest single cost variable is whether scaffolding is required — that often adds £400-£800 to the total. We give written fixed-price quotes after a free survey.

Do you install other roof window brands or only Velux?

We install both. Velux is by far the most popular and most commonly asked-for brand, and is what we recommend for most customers because of the range, warranty and replacement parts availability. We also install Fakro and RoofLITE roof windows where the customer prefers, or where we are matching an existing window of a different brand.

Can you replace an old Velux window without changing the surrounding roof?

In most cases, yes. If you are replacing a like-for-like sized Velux into the same opening, we lift the surrounding tiles, remove the old unit and flashing kit, fit the new window with a matching Velux flashing kit to current standards, and reset the tiles. This is usually a one-day job and does not require any internal plastering.

How long does a Velux roof window last?

A Velux window is typically expected to last 25-30 years in service. Velux provides a 10-year manufacturer warranty on the window itself (and 20 years on the glazing seal on most current models). Most failures we see in older windows are: failed seals (visible condensation between the panes), perished sash gaskets, or corrosion at the bottom corner of the cladding.

Will you install a Velux window during a full re-roof?

Yes — this is actually the ideal time to add or replace Velux windows. Because the tiles are off and the roof is exposed, we can fit the new Velux directly onto the battens and breather membrane with the correct flashing kit at zero additional disruption to your interior. If you are considering a re-roof and have been thinking about adding more natural light, that's the moment to do it.

Roof Windows

Velux Window Installation & Replacement Across Staffordshire

New Velux roof window installs, replacements of old units, and full re-roof Velux fitting. BS 5534 battens, Juta Master Breather membrane, manufacturer-spec flashing kits. Free survey, written fixed-price quote.

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Own employed team
Velux manufacturer-spec methods
Free survey & written quote
Fixed-price — no extras
10-year workmanship guarantee

Velux Roof Windows Done Properly

A Velux window installed badly leaks. A Velux window installed properly stays watertight for 25+ years. The difference is in the details that don’t show in photos: the breather membrane lap, the flashing-kit corners, the batten support around the opening, and the exact head and apron dressings. We carry out Velux installation and replacement work across Staffordshire — new installs into existing tiled or slated roofs, replacement of old units that have failed, and Velux fitting as part of a full re-roof.

Every job we quote is on a free pre-work survey: we look at your existing roof, confirm the right Velux size and code for your rafter spacings, check whether scaffolding is needed, and give you a written fixed-price quote before any work starts. No surprise extras.

Velux roof window being installed during a re-roof in Staffordshire — showing BS 5534 graded battens, Juta Master Breather membrane and manufacturer flashing kit

During: fitted directly to BS 5534 battens and Juta Master Breather membrane during a full re-roof.

Finished Velux window installation on a tiled roof — top-hung opening showing proper flashing kit integration with surrounding clay plain tiles

After: completed Velux replacement on an existing tiled roof — flashing kit fully integrated.

Velux Work We Carry Out

New Velux installation

Fitting a brand-new Velux roof window into an existing roof — typical for adding natural light to a loft conversion, attic bedroom, kitchen or bathroom. Includes timber trimming around the opening, breather membrane modification, batten work, and Velux EDW/EDN/EDJ flashing kit appropriate to your tile or slate profile.

Velux replacement (like-for-like)

Replacing an old, failed or damaged Velux with a new same-size unit using the same opening. Failed seals (condensation between panes), perished sash gaskets, broken sash hinges or corroded cladding are the most common reasons people replace. Usually a one-day job, no plasterwork required.

Velux during a full re-roof

The best time to add or upgrade Velux windows is during a full re-roof when the tiles are off. We can fit any number of new Velux windows during the re-roof for far less disruption than retrofitting later. If you’re already booking a re-roof, ask us about adding Velux at the survey.

Flashing kit replacement only

Sometimes the Velux unit is fine but the flashing kit around it has failed — usually causing minor leaks at the head or sides. We can replace just the flashing kit with a current Velux EDW/EDN/EDJ kit at a fraction of the cost of a full window replacement.

Conservation area & listed property Velux work

For listed buildings and conservation areas you usually need Listed Building Consent or Conservation Area Consent for any Velux on a visible roof slope. We can advise on Velux Conservation models (the GGL CK04 with conservation flashing kit, for example) and supply a method statement to support your consent application. See our listed building roofing in Lichfield guide for the consent process detail.

Sun tunnels & rooflights

For rooms where you can’t fit a full Velux window — small landings, bathrooms, internal hallways — we also fit Velux sun tunnels and rigid rooflights. These bring daylight from the roof down through a reflective tube to an internal ceiling diffuser.

Materials We Use on Every Velux Job

The visible part of a Velux install is the window itself. The invisible part — done right — is what keeps it watertight for 25-30 years. On every install we use:

BS 5534 graded timber battens — we use Timberex BS 5534 graded battens, properly treated, not generic untreated softwood.
Juta Master Breather membrane — high-performance Class A breather membrane that complies with current Building Regs Part L for U-values and wind uplift.
Velux manufacturer flashing kit — always the correct EDW (single tile), EDN (slate or thin tile), or EDJ (recessed) kit for your specific roof covering. Cheap aftermarket flashings are the most common cause of Velux leaks.
Code 4 sheet lead — where lead detailing is required at junctions, never PVC alternatives.
Stainless steel fixings — never galvanised, which corrodes within 10-15 years.
Original Velux components only — gaskets, hinges, handles all genuine Velux for replacement parts.

If your existing Velux is leaking, in 8 out of 10 cases the problem isn’t the window — it’s that the original installer used a generic flashing kit instead of the correct Velux kit for that specific tile profile. We see this every week. The fix is a flashing kit replacement, usually £350-£600 depending on access.

Indicative Cost Guide for Velux Work in Staffordshire

These are rough guide prices for typical jobs — your written quote after our free survey is what you actually pay.

Like-for-like Velux replacement, no scaffolding — typically £800 to £1,200 all in. One-day job.
Like-for-like Velux replacement requiring scaffolding — typically £1,200 to £1,800. The scaffolding is usually £400-£600 of that.
New Velux installation into an existing roof — typically £1,400 to £2,200 depending on size, scaffold needs and any internal making-good.
Velux during a full re-roof — typically £600 to £1,000 per Velux when included as part of the re-roof job. Far cheaper than retrofitting later.
Flashing kit replacement only — typically £350 to £600. Usually fixes “leaking Velux” complaints where the window itself is fine.
Velux Conservation model with conservation flashing — adds approximately £200 to £400 to the cost compared to the standard equivalent.
Velux INTEGRA electric or solar-powered model — the unit itself is £300-£600 more than the manual equivalent.
Velux sun tunnel — typically £700 to £1,400 installed depending on tube length and access.

For a fully detailed cost breakdown including the variables that move the price up or down, see our blog post: How Much Does a Velux Window Cost in 2026? A Staffordshire Price Guide.

Why Staffordshire Homeowners Choose Us for Velux Work

Own employed team

No subcontractors. The same people who quote your job carry out the work.

Correct Velux flashing kit, every time

We always source the correct manufacturer flashing kit for your specific roof covering — never aftermarket substitutes.

Free pre-work survey

No charge to look at your roof, confirm sizing and code, and quote you in writing.

Written fixed-price quote

Once accepted, the price doesn’t change. No surprise extras at the end of the job.

10-year workmanship guarantee

In writing. Plus the standard 10-year Velux manufacturer warranty on the window itself.

Fully insured for Velux work

£2 million public liability with specific cover for at-height roofing work.

Frequently Asked Questions

How much does a Velux window installation cost?

For Staffordshire properties: a typical like-for-like replacement runs £800-£1,200 if no scaffolding is required, or £1,200-£1,800 with scaffolding. New installations run £1,400-£2,200 depending on size. Velux fitted during a full re-roof is much cheaper (£600-£1,000 per Velux) because no extra scaffolding is needed. Free survey before any quote.

Do you install other roof window brands?

Yes. Velux is the most popular and what we recommend for most jobs, but we also fit Fakro and RoofLITE windows where the customer prefers, or where we are matching an existing window of a different brand.

Can you replace an old Velux without major work inside?

Yes — like-for-like replacements into the same opening are usually a one-day job with no internal plasterwork required. We work entirely from the roof side.

Do I need planning permission for a new Velux window?

For most homes, no. Velux windows on the existing roof slope generally fall under permitted development as long as they do not project more than 150mm from the slope and are not on a front roof slope facing a highway, and as long as the property isn’t listed or in a conservation area. Listed buildings and conservation areas need Listed Building Consent or Conservation Area Consent. We confirm at the survey.

How long does a Velux window last?

Typically 25-30 years. Velux gives a 10-year warranty on the window and 20 years on the glazing seal on current models. The most common failures we see in older units are: failed seals (condensation between panes), perished sash gaskets, and corrosion at the bottom corner of the metal cladding.

Will you install Velux during a full re-roof?

Yes — this is the ideal moment to add or replace Velux windows. The tiles are off, the roof is exposed, and we can fit any number of new Velux windows at minimal extra cost. If you’re already booking a re-roof and considering more natural light, raise it at the survey.

Get a Free Survey for Your Velux Job

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Prefer email? Write to info@aetherroofingsolutions.com.

Velux Roof Window Work Across Staffordshire

Free survey, written fixed-price quote, manufacturer-spec flashing kits, own employed team.

07376 660 209

Covering Stafford, Stoke-on-Trent, Cannock, Lichfield, Tamworth, Burton-upon-Trent, Newcastle-under-Lyme, Rugeley, Uttoxeter, Leek and all surrounding Staffordshire.