20 Years
Experience
VELUX® Window & Glazing Specialists in Westminster
Certified Installers Limited specialise in installing, replacing, and repairing VELUX® windows, sun tunnels, and flat roof windows for residential and commercial properties throughout the Westminster area.
Drawing on over 20 years of experience, we are Westminster's most trusted VELUX window installation and repair company. We are able to discuss any issues you may have with your current installation and advise you on the most cost-effective solution, please do not hesitate to email us or telephone us for a free survey or quote.
We offer a variety of styles and types of glass to fit any window in your home.
VELUX INTEGRA® is the finest in windows, blinds and shutter technology.
What makes us different
Certified Installers Limited has specialised in new VELUX Installs, VELUX repairs and VELUX maintenance for a wide range of customers in the Westminster area.
Our skilled team have the training and experience to ensure we complete all our repair work to the highest standards. All ranges of work are undertaken, from residential VELUX Installations, VELUX glass replacement, VELUX Replacements and VELUX repairs to large projects like industrial and commercial skylight Installs, skylight repairs, rooflight replacements and roof light maintenance.
What our Customers say
Quick and Reliable
“A first class product, professionally fitted but two very pleasant workers. I had, initially, been very wary of the remote pricing for the work, as a pensioner unused to this style of estimating, but I needn't have worries and a special mention for the lady on the office computer - Lucy - she always responds quickly and does exactly what she says she will do - you can rely on her.!!”
Paul Jackman
Free Quotes & Estimates
Please feel free to contact us anytime on 0800 368 2988, we are always happy to call round to give you a free quote on any project you may have for us.
We have many satisfied customers throughout the UK and we regularly complete major contracts across the whole of the UK.
Westminster
Westminster, at the heart of Central London, is renowned for its iconic landmarks, elegant Georgian townhouses, period mansion blocks, and luxury apartments. With properties in areas like Pimlico, St James’s, and Victoria often featuring lofts, flat roofs, or internal spaces with limited light, Velux roof windows and sun tunnels are a valuable upgrade—enhancing daylight, ventilation, and overall comfort without compromising the property’s historic character or aesthetic appeal.
At Certified Installers Limited, we provide professional services throughout Westminster as certified Velux installers and FENSA-approved professionals. This ensures that every installation meets UK building regulations and is completed to the highest industry standards. Whether you’re modernising a penthouse, renovating a period flat, or brightening a narrow hallway, our team delivers expert, regulation-compliant Velux window and sun tunnel installations across Westminster. For trusted, high-quality results in the heart of London, choose Certified Installers Limited.