Cortizo Windows is a specialist network for aluminium and PVC windows for homes, with professional advice, an energy-saving calculator, quote request forms and a store locator.

Are you an Architect, Fabricator, Installer?
Practical Ventanas Cortizo guide

How to measure windows for a quote

Measurements, photos and details to prepare before requesting a window replacement quote.

Request a quoteBack to advice

Direct answer: approximate measurements are enough for a first quote

For an initial quote, you do not need millimetre precision. Measure the visible opening, take clear photos and explain whether the job includes only the window, a shutter, a shutter box, mosquito screen or interior trims.

Final dimensions must always be checked by a professional before manufacturing or installation.

What to measure

Measure width and height in several points. Differences may reveal an uneven opening that needs careful finishing.

Also note opening type, shutter box, nearby radiators and any space limitations.

Useful photos

Send front photos, side details, the shutter box and the exterior when possible. These images help evaluate access, finishing and possible thermal bridges.

Items that change the price

Removal, shutter replacement, acoustic glass, security hardware, exterior access and masonry finishing can change the final cost significantly.

Common mistakes

Measuring only the glass.

Forgetting the shutter box.

Sending no side or exterior photos.

Confusing width and height.

Manufacturing without a final technical check.

Practical recommendation

Prepare a simple table with room, width, height, main problem and photos. This makes the quote more useful.

Related guides

Aluminium or PVC windows: choose by use, not by habitAluminium is usually stronger for large glazed areas, slim profiles, special colours and intensive use. PVC is often the practical choice when the priorityAluminium and PVC window maintenanceHow to care for aluminium and PVC windows: cleaning, gaskets, hardware, drainage and adjustment signs.Best windows for noise: what actually reduces soundNoise reduction depends mainly on acoustic glass, airtightness, opening type, perimeter sealing and weak points such as old shutter boxes. A new window isDouble or triple glazing: when it is worth itCompare double and triple glazing by climate, orientation, noise, sash weight, solar control and energy target.How much does window replacement cost? The real cost driversThere is no useful single price per window. Cost changes with dimensions, frame system, opening type, glass, colour, shutters, removal, access, installatioHow to measure windows for a quoteMeasurements, photos and details to prepare before requesting a window replacement quote.Mistakes when replacing windowsCommon window replacement mistakes and how to avoid them before accepting a quote.Window condensation: causes and solutionsWhy condensation appears, when it depends on the window and what to check in ventilation, glass, installation and indoor humidity.Thermal break: what it is and when it mattersA thermal break separates the outer and inner parts of an aluminium frame with an insulating barrier. It reduces the transfer of cold and heat through theThermal insulation windows: how to improve comfortThermal comfort depends on the whole opening: frame, glass, shutter box, orientation, airtightness and installation. Replacing only the frame may not solveWhich glass to choose for your windowsHow to choose glazing according to insulation, noise, orientation, security and solar control.Window opening types: which one fits bestChoose casement, tilt-and-turn, sliding or fixed windows according to space, ventilation, cleaning, insulation and daily use.Window replacement grants: what to check firstGrants depend on the active programme in each region or municipality. Before starting the work, check whether the call is open, what homes qualify, what enWindow security: what to checkPractical guide to hardware, locks, laminated glass, shutters and opening types to improve home security.Windows for cold areasWhat to request in cold areas: insulated profiles, low-emissivity glass, airtightness and good installation.Windows for old houses and renovationsWhat to check in older homes: irregular openings, appearance, insulation and installation work.Windows for warm and sunny areasWhat to prioritise in hot areas: solar control, ventilation, colour, glazing and shading.Windows with shutters: box, insulation and noiseWhat to check in the shutter box so it does not weaken the thermal and acoustic performance of new windows.

Want to apply this guide to your home?

Prepare measurements, photos and priorities. A Ventanas Cortizo showroom can help define the right solution.

Request a quoteBack to advice