Velux Roof Window Replacement for First Floor Bedroom in St. Austell

Velux Roof Window Replacement for First-Floor Bedroom in St. Austell

I need to replace an old Velux window in a first-floor bedroom. The window leads onto a slate roof and measures 125cm (horizontal) by 89cm (vertical). I am looking for a full supply and installation service.

Why Replace a Velux Roof Window?

Over time, Velux roof windows may develop issues such as:

  • Leaks and draughts: Seals and flashing can deteriorate, leading to water ingress.
  • Condensation problems: Older glazing may not provide sufficient insulation.
  • Difficulty opening and closing: Hinges and mechanisms can wear out.
  • Outdated design: Modern Velux windows offer better energy efficiency and aesthetics.

Recommended Velux Window Replacement

Based on the provided dimensions (125cm x 89cm), the most suitable Velux replacement options include:

  • Velux GGL UK08: A centre-pivot roof window with high thermal efficiency.
  • Velux GPL UK08: A top-hung window for better ventilation and unobstructed views.

Both options are available with standard double glazing or enhanced glazing for better insulation and noise reduction.

Steps to Replace a Velux Roof Window

The replacement process involves:

  1. Removing the Existing Window: Carefully dismantling the old frame and inspecting the surrounding roof area.
  2. Checking Roof Integrity: Ensuring the slate roof and flashing are in good condition.
  3. Installing the New Velux Window: Securely fitting the new window within the existing roof opening.
  4. Sealing and Flashing: Applying new Velux flashing to prevent leaks.
  5. Final Testing: Checking the window operation and weatherproofing.

Estimated Cost of Velux Window Replacement in St. Austell

The cost of replacing a Velux window depends on the model chosen and installation complexity. Estimated pricing includes:

  • Velux GGL UK08 or GPL UK08 window: £600–£900
  • Installation cost: £300–£500
  • Total estimated replacement cost: £900–£1,400

Choosing the Right Glazing for Velux Windows

Homeowners can select from different glazing options based on insulation and durability needs:

  • Standard double glazing: Affordable and effective for most homes.
  • Triple glazing: Superior insulation and energy efficiency.
  • Laminated glazing: Enhanced security and UV protection.

How Long Will the Installation Take?

The estimated timeframe for installation is:

  • 3–5 hours for a straightforward replacement.
  • 1 day if additional roof repairs or flashing work is needed.

Preparing for the Installation

Before the work begins, homeowners should:

  • Clear the area under the window for easy access.
  • Ensure installers have safe roof access.
  • Discuss any interior finishing options (e.g., plastering around the new window).

Do You Need Planning Permission?

Velux window replacements do not usually require planning permission unless:

  • The property is listed or in a conservation area.
  • The replacement significantly alters the home’s appearance.

Building regulations approval may be required if installing a larger window.

Local Velux Window Installation Services in St. Austell

For expert Velux window replacement in St. Austell, hiring a certified installer ensures high-quality results and long-lasting durability.

Nearby Areas We Cover

We provide Velux window installation services in St. Austell (PL25) and surrounding areas, including:

  • Bodmin
  • Truro
  • Newquay
  • Fowey
  • Par

If your roof window needs replacing, contact a local Velux specialist in St. Austell today for a free quote and expert advice.

* Required fields.

Roof Types

Gable Roofs: A classic triangular roof shape, commonly seen on many homes. Flat Roofs: Often used for extensions or modern-style homes. Hip Roofs: Slopes on all sides, providing excellent durability. Mansard Roofs: A French design with a double slope, ideal for creating extra space. Shed Roofs: Single-slope roofs, popular for smaller structures and contemporary designs.

Roofing Materials

Asphalt Shingles: Affordable and widely used across the UK. Slate Tiles: Highly durable and perfect for traditional homes. Metal Roofing: Lightweight, long-lasting, and energy-efficient. Clay and Concrete Tiles: Traditional and robust, offering a timeless appearance. EPDM (Rubber Roofing): A practical choice for flat roofs.
We are committed to delivering top-notch roofing solutions by using premium materials from some of the most trusted brands in the industry. Our extensive range of materials ensures durability, quality, and longevity for every roofing project. We work with leading manufacturers, including Firestone, Marley, Acrypol, DuPont, Protect, Novia, KLOBER, RESITRIX, Soudal, EcoThane, DS System, ClassicBond, Granuflex, Metsec, Roofing Superstore, Manthorpe, ACO, Caroflow, SkyGarden, Karnak, Powerlon, Cromar ProGRP, PAVATEX, MESA Support, Thompson's, Bailey, IKO, Eurodec, Kovertek, Swepco, Wallbarn, ROOF-PRO, Hertalan, Duoply, Blucher, Flexitec 2020, EnviroBuild, Fix R, DEKTITE, Whitesales, Cromar, Cure It, Icopal, Andersons, Lancastria, Sika, Caro, Deck Proof, Eco Proof, Monarflex, and QUARTZDEK. No matter the scale of your project, we provide high-quality materials to ensure the best results for your roof.

Common Roofing Problems

Leaks: Often caused by missing tiles or damaged flashing, leading to water ingress. Cracked or Broken Tiles: Can allow water to penetrate the roof structure. Sagging Roof: A sign of structural issues that may need urgent attention. Poor Insulation: Causes heat loss and higher energy bills, especially in older homes. Blocked Gutters: Can result in water overflow, leading to damage to the roof and walls.
We specialize in a wide range of services, including Lifetime Flat Roofs, roof repairs and maintenance, flat roof systems, EPDM, slate roofs, roof tiles, new roofs, fibreglass roofs, roof replacements, gutter replacements, roofing contractors, GRP roof repairs, roofing materials, vetted roofing companies, roofing solutions, industrial roofing, domestic and commercial roofing, no scaffold access using ropes and harnesses, drone aerial surveys, Velux windows, domestic garage roofs, emergency call-outs, and insurance works.