Window Fitter
UK& Surrounding Area

Most reputable window fitters in UK offer free, no-obligation home surveys and quotes. During the survey, the fitter will measure your windows, discuss frame materials and glass options, and provide a written quotation. Be wary of high-pressure salespeople who want you to sign on the spot — a trustworthy fitter will give you time to compare quotes.

Triple glazing costs around 30-50% more than double glazing and provides a modest improvement in thermal performance — typically reducing heat loss by a further 20-30%. For most UK homes, A-rated double glazing is the best value option. Triple glazing makes most sense if you live in an exposed or particularly noisy location, or if you are building a passive house to very high energy standards.

A composite front door supplied and fitted in UK costs between £800 and £1,500. This includes the door, frame, handles, locks and all finishing. Composite doors offer better security and insulation than UPVC panel doors and come in a wider range of styles. Expect to pay more for side panels, glazed sections or smart locks.

In most cases, no — replacing windows like-for-like does not require planning permission. However, if your property is in a conservation area or is a listed building, you may need approval before changing window styles, materials or colours. Ground-floor windows must also meet building regulations for fire escape requirements. Your FENSA-registered fitter should advise you on any restrictions.

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.

Condensation between the panes means the sealed unit has failed — the airtight seal has broken, allowing moisture inside. This cannot be repaired; the glass unit needs replacing. The good news is that you usually only need to replace the glass unit, not the entire window frame. A replacement sealed unit typically costs £80 to £200 per window depending on size.