Window Fitter
UK& Surrounding Area

Sliding patio doors in UK cost between £800 and £2,000 fitted, depending on the width, frame material and glass specification. Bi-fold doors are more expensive, typically £1,500 to £4,000 for a three-panel set. All patio door installations must comply with building regulations, and a FENSA-registered fitter will handle the certification for you.

Yes, using a FENSA-registered fitter in UK is strongly recommended. It means your installation automatically complies with building regulations and you receive a certificate without needing a separate council inspection. If you use a non-FENSA fitter, you must arrange a building control inspection yourself, which costs £200 to £400 and can delay completion.

Minor window repairs in UK — such as fixing a broken handle, adjusting a dropped sash, or replacing a seal — typically cost between £60 and £150. Replacing a single failed double-glazed unit (misted glass) costs £80 to £200 depending on size. Repairs are often far more cost-effective than full replacement if the frames are still in good condition.

UPVC is the most popular and affordable option — low maintenance, good insulation, and widely available. Aluminium frames are slimmer, stronger, and suit modern designs, but cost 40-60% more than UPVC. Timber frames offer a traditional look and excellent insulation but require regular painting or staining every 3 to 5 years. Each material has its strengths depending on your property style and budget.

Yes, modern replacement windows come with significant security improvements over older designs. Look for windows with multi-point locking mechanisms, internal beading (glass fitted from inside so it cannot be removed from outside), anti-lever hinges, and laminated or toughened glass. Secured by Design accredited windows meet police-approved standards for burglary resistance.

Most window fitters in UK can carry out a survey within a few days and have standard UPVC windows manufactured and fitted within 2 to 4 weeks. Specialist frames — timber, aluminium, or non-standard colours — may take 4 to 8 weeks due to longer manufacturing lead times. Emergency boarding or temporary glazing can usually be arranged within 24 hours.