16/08/25

Why accurate measurements are crucial before ordering PVC windows

Measurement Accuracy is fundamental for quality window installation. Even minor errors can lead to serious problems: compromised thermal and sound insulation, installation difficulties, and extra costs for corrections.

Consequences of Incorrect Measurements

• Installation Problems: window may not fit properly
• Heat Loss: formation of cold bridges
• Structural Deformation: warping during installation
• Extra Costs: need for rework

Required Tools

For accurate measurements you’ll need:

• Metal tape measure (at least 3 meters)
• Building level
• Pencil or marker
• Paper for notes
• Stepladder (if necessary)

Measurement Process

Determining Opening Type:

• With quatrefoil (external protrusion)
• Without quatrefoil (flat wall)

Measurement Procedure:

1. Width measurement (top, center, bottom)
2. Height measurement (left, right, center)
3. Diagonal verification
4. Allowance for installation gaps

Measurement Features

Important Considerations:

• Record minimum values
• Account for wall curvature
• Measure opening depth
• Note подоконник dimensions

Professional Advice

Things to Consider:

• Installation gaps (20 mm on the sides and top, 50 mm on the bottom)

• Quarter depth (about 30 mm on the sides, 20 mm on top)

• Condition of walls and openings

• Possibility of alignment in case of curvature

When to contact a specialist

Signs of the need for professional measurements:

• Non-standard shape of the opening

• Strong curvature of the walls

• Lack of experience in measurements

• Difficulty of access to the opening

Correctly performed measurements are a guarantee that the new windows will serve for a long time and effectively. Saving on professional measurements can result in serious problems in the future, so this stage should be approached with the utmost responsibility.