Frequently Asked Questions

You can extend the lifespan of your double glazed windows by performing regular maintenance and proper cleaning.

• Conduct biannual inspections to detect seal failures early.
• Use ammonia-free, pH-neutral cleaning products to avoid damaging seals.
• Clean glass with microfiber cloths and avoid abrasive materials.
• Maintain frames according to their material (uPVC, timber, aluminium).
• Avoid high-pressure washers that can force water behind seals.

Following these care tips can add up to 7 years to your window’s life and save you money on premature replacements. Find detailed care instructions here.

Replacing window seals restores insulation, prevents condensation, and reduces energy bills.

• New seals trap insulating gases like argon between panes.
• They maintain airtightness to stop drafts and heat loss.
• Prevent moisture ingress that causes fogging and mould.
• Extend the lifespan of your double glazing units.
• Professional replacement ensures proper installation and warranty protection.

See why seal replacement is a smart investment for comfort and cost savings here.

Yes, you can safely clean your double glazed windows yourself by using ammonia-free, pH-neutral detergents and soft microfiber cloths.

• Avoid abrasive materials like steel wool or scouring pads.
• Do not use ammonia-based cleaners repeatedly as they degrade sealants.
• Clean frames with materials suitable for their specific type (uPVC, timber, aluminium).
• Clean windows on overcast days to avoid streaks.
• For detailed cleaning instructions, see our Double Glazing Care Tips 2026 guide.

Condensation between double-glazed panes is caused by seal failure allowing moisture to enter the glazing unit.

• Broken seals let moisture-laden air seep inside, forming fog or cloudy patches.
• This moisture damages insulation and reduces energy efficiency.
• Condensation on the inside surface of the window (room side) is usually due to indoor humidity, not seal failure.
• Replacing the glazing unit or seals restores airtightness and prevents further condensation.

We recommend professional inspection and repair to maintain your windows’ performance. More details are available here.

Maintaining window frames depends on the material to ensure durability and appearance.

• uPVC frames: Clean with mild, non-solvent detergents to avoid damage.
• Timber frames: Use specialised wood cleaners that nourish and protect timber; repaint every 5-7 years to prevent rot.
• Aluminium frames: Generally tolerant of gentle cleaning solutions; avoid abrasive cleaners.

Regular maintenance prevents moisture damage and extends frame lifespan. For detailed cleaning tips, visit our care guide here.

Our top window hinge and alignment repair service in 2026 ensures your windows operate smoothly and seal properly. We provide:

• Inspection of hinges, handles, and locking mechanisms for wear or damage
• Realignment of window sashes to eliminate drafts and improve security
• Lubrication of moving parts to prevent squeaks and stiffness
• Replacement of faulty hinges or hardware with quality components
• Testing to confirm proper operation and airtight sealing Regular maintenance like this extends window lifespan and maintains energy efficiency. For maintenance tips and benefits, see Why Window Maintenance Saves 15% Energy & Prevents Repairs.