Velux Roof Window Specialists · London SW19

Bring more natural light into your London home.

Supply & installation of the complete Velux roof window range — from centre pivot windows and flat rooflights to solar INTEGRA®, sun tunnels, Cabrio balconies and conservation windows. London-based, fully insured, completed to the highest standard.

Full Velux range
Fully insured
Free site survey

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Velux Specialists Full product range
London Based SW19 & surrounding
Fully Insured Public liability cover
Conservation Approved Heritage-area capable
Our Velux Range

The complete Velux product line, expertly installed.

From standard roof windows through to solar-powered automation, balcony conversions and conservation-area approved heritage glazing — we supply and install every Velux product.

Bestseller

Roof Windows

Centre pivot & top hung Velux roof windows in white painted, polyurethane and pine finishes with five glazing options.

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Flat Roof Windows

Velux glass rooflights with insulating PVC frame, tempered glass and the option of INTEGRA® electric opening.

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Flat Roof Domes

PVC construction with a two-layer low-energy pane. Manual or remote operation, rain sensor and an opaque privacy option.

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Large Spaces

Modular Skylights

Large-room solutions with automated opening and integrated roller blind options — perfect for extensions and commercial spaces.

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Smart

Solar Powered Windows

Fully automated INTEGRA® windows, blinds and shutters. Wall switch, rain sensor and Velux ACTIVE smart-home compatibility.

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Solar Sun Tunnels

Natural daylight for corridors, stairwells, bathrooms and cupboards. Flat or pitched roofs, with rigid or flexible tunnels.

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Velux Blinds

Blackout, roller, pleated and Venetian blinds. Manual or powered. Designed for a perfect fit on every Velux window.

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Heritage

Conservation Windows

Heritage-appropriate roof windows for conservation areas, listed buildings and London period properties.

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Solar Conversion

Upgrade your existing manual Velux windows to fully solar-powered operation — no wiring, no fuss.

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Premium

Cabrio Balcony

A unique roof window that opens to create an instant balcony — bringing outdoor space to your London loft.

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Premium

Roof Terrace

Roof terrace access windows giving full step-out access to a usable roof terrace from the room below.

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Period

Traditional Sash Windows

Period aesthetics with modern engineering — designed to meet planning and architectural compliance requirements.

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Why GRP London

London homeowners trust us with their Velux installations.

A specialist Velux installer based in SW19, serving the whole of London. Honest pricing, premium products, and the technical craft to install them properly first time.

01

Velux Specialists

The complete Velux product range is our core focus — from standard windows to solar INTEGRA®, sun tunnels and Cabrio balconies.

02

London Local

Based at 55 Hartfield Road, SW19. We know London roofs, planning rules, conservation areas and period properties inside out.

03

Free Site Survey

Every quote starts with a proper survey — measuring the roof, checking the rafter pitch and recommending the right product for your room.

04

Clean Install

Tidy, on-time installation with dust sheets, full clean-up, and minimal disruption to your home or family routine.

Featured · INTEGRA®

Solar-powered roof windows that work without wiring.

The Velux INTEGRA® range turns your roof windows, blinds and shutters into a fully automated system — controlled by wall switch, app or voice. Fully solar-powered, with a rain sensor that closes the window automatically when the weather turns.

  • Fully wireless solar power — no electrician needed
  • Rain sensor closes the window automatically
  • Compatible with Velux ACTIVE smart-home system
  • Solar conversion upgrade available for existing windows
Learn More Get a Quote
How It Works

A simple four-step process, from enquiry to finished install.

We make the whole journey clear, calm and predictable — no surprises, no hidden costs.

STEP 01

Free Quote

Tell us about your project — room, roof type and the Velux product you have in mind. We respond within one working day.

STEP 02

Site Survey

We visit, measure the roof, check pitch and rafter spacing, and confirm the right product, sizes and finishes for you.

STEP 03

Order & Schedule

You approve a fixed quote, we order the windows direct from Velux and book in an installation date that suits you.

STEP 04

Install & Tidy

Our team install the windows, flashings and any blinds or controls — fully weather-tight, fully cleaned up, ready to enjoy.

What our customers say

Trusted by London homeowners.

Real feedback from real Velux installations across South West London and beyond.

"
★★★★★
The team installed three Velux windows in our loft extension — neat, fast, fully tidied up at the end of every day. The roof has been weather-tight ever since and the rooms are flooded with light.
Sarah J. Wimbledon, SW19
"
★★★★★
We had a sun tunnel fitted into a dark internal hallway — the difference is incredible. GRP London were professional from quote to completion and the price was fair throughout.
James M. Clapham, SW4
"
★★★★★
We needed conservation-approved Velux windows for a period property and the team handled the spec, install and finish perfectly. Honest, knowledgeable, and a pleasure to deal with.
Helena R. Putney, SW15

Ready to bring more light into your London home?

Get a free, no-obligation quote on any Velux roof window, rooflight, sun tunnel or sash window installation. We respond within one working day.

Get in touch

Let's talk about your Velux project.

Whether you need a single roof window, a flat rooflight for an extension or a full set of solar-powered INTEGRA® windows — we'd love to hear from you. Free quotes, friendly advice, no pressure.

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Frequently asked

Velux installation questions, answered.

Yes — we supply and install every Velux product, from standard centre-pivot and top-hung roof windows, through flat rooflights, sun tunnels, modular skylights and solar-powered INTEGRA® windows, all the way to Cabrio balconies and roof terraces. We also fit Velux blinds and offer solar conversion upgrades for existing windows.
We're based at 55 Hartfield Road in SW19 and cover the whole of London — including Wimbledon, Putney, Clapham, Wandsworth, Battersea, Fulham, Chelsea, Richmond, Kingston and the wider South West and Central London areas. If you're in any of the surrounding London boroughs, please get in touch.
Yes — we specialise in Velux conservation windows, which are designed with heritage-appropriate detailing for conservation areas, listed buildings and London period properties. We'll help you choose the right specification and finish to meet local planning requirements.
Most single roof window installations are completed in a single day. Larger jobs — multiple windows, flat rooflights or Cabrio balconies — typically take one to three days. We'll confirm timing during your free site survey and stick to it.
Yes — completely free and with no obligation. We'll visit your property, measure the roof, check the pitch and rafter spacing, and recommend the right Velux product for your room. You'll then receive a fixed-price written quote.
All Velux windows carry the manufacturer's 10-year warranty against material defects, plus a 3-year warranty on electrical components and accessories. Our installation workmanship is also fully insured. Full details are provided with every quote.
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