FENSA-registered
We self-certify that our installations meet Building Regulations and issue your FENSA certificate on completion. [CONFIRM reg number]
Ketos Glazing is a London, Essex and Kent installer built on quality work, fair prices and treating every customer's home like our own.
Founded and run by Tommy Ayres, Ketos Glazing supplies and fits uPVC double-glazed windows and doors right across London, Essex and Kent. We're proud to be a genuinely local business — most of our work comes from word of mouth in and around Lewisham, Catford and Blackheath.
Our approach is simple: turn up when we say we will, do a tidy, professional job, and stand behind our work. No pushy sales tactics, no surprise costs — just made-to-measure windows and doors fitted properly.


As well as our domestic work, we're an approved sub-contractor for main contractors and councils, delivering large window and door replacement programmes — including social-housing schemes in the London Borough of Lewisham.
What does that mean for you as a homeowner? It means the same team that delivers big, quality-controlled contracts is fitting your windows — to exactly the same high standard.
Approved contractor · Social-housing experienceWe self-certify that our installations meet Building Regulations and issue your FENSA certificate on completion. [CONFIRM reg number]
Your installation comes with a guarantee for genuine peace of mind. [CONFIRM length & whether insurance-backed]
We carry public liability insurance, so you and your home are covered while we work. [CONFIRM cover]
A clear, fixed quote with no pressure and no surprise costs added later.
Premium uPVC, aluminium and composite systems with A-rated glass as standard.
We turn up when we say we will and keep you posted from survey to sign-off.
We protect your home, clean up fully and treat your space like our own.
A local team you can actually reach — the same faces from quote to completion.
FENSA-certified, fully insured and backed by a guarantee for real peace of mind.
Friendly advice and a free, no-obligation quote — with no pressure to commit.