Averi Windows and Building Services Ltd

Averi Windows and Building Services Ltd based in Dartford, Kent offer andouble glazing dartford exceptional range of UPVC windows, UPVC doors and UPVC conservatories. We have over 20 years of experience in the double glazing industry as well as being experts in a variety of building services and glazing repairs. With Averi Windows and Building Services Ltd you know you’re in safe hands as our professional team of fitters always promise to leave no mess and cause very little hassle to your home.

We are specialists in uPVC double glazing and aluminium products, and offer unbeatable value, brilliant customer service and outstanding quality. Our installations are carried out by skilled tradesmen to achieve a high quality finish for properties in Dartford, London, Kent and South East of England.

double glazing kent

upvc windows kent

double glazing kent

Customer Care

Averi Windows and Building Services Ltd pride ourselves on giving that personal touch and always going the extra mile to build strong working relationships with our customers. We always make sure the process runs as smoothly as possible from initial quote to finial installation. Customer care is a top priority for us here at Averi Windows in Dartford.

Averi Windows and Building Services Ltd are very aware that having builders in your home or workplace can cause disruption to your daily routine, that’s why we will always do our very best to minimise the effect on you, your family or business and employees.

Why Choose Averi?

Here at Averi Windows and Building Services Ltd we have dedicated ourselves to becoming one of the most trustworthy and respected suppliers and installers of windows, doors and conservatories in Kent.

We are solely committed to offering the fastest lead times, a full professional installation supply and fit service along with a leading customer care.





We are experts in the installation of Liniar’s multi-chambered profile. Containing 6 chambers rather than the standard 3 and includes integrated reinforcements that make steel and lead redundant. Each Liniar profile is designed to prevent condensation and maximises positive drainage.



We are a FENSA registered company offering a 10 year insurance backed guarantee. FENSA are a government authorised Competent Persons Scheme for the replacement of windows and doors. When you choose Averi, you are guaranteed excellent FENSA protection when buying your new double glazing in Kent and London.



We supply and fit our windows and doors with quality Yale locking systems. After your installation all you have to do is follow the simple steps on their website to be covered by their comprehensive 10 year guarantee for up to £1,000.



We are proud to work in accordance with Trustwave to provide industry leading managed security services. You can therefore be confident that your data and privacy is managed correctly at all times when dealing with Averi Windows and Building Services Ltd.

Trust Mark


TrustMark is a not for profit organisation, licensed by Government and supported by consumer protection groups designed for consumers to find local trusted companies with a reputation for being reliable and operating to Endorsed Standards.


CHAS Accredited

We are proud to be an accredited contractor for CHAS (Contractors Health and Safety Assessment Scheme) ensuring Averi Windows and Building Services Ltd meet the very highest standards.


Exor Accredited

Averi Windows and Building Services Ltd are an Exor Accredited company so you can be confident in our extensive range of expert building and construction services.


Construction Online

We are members of Constructionline, the UK’s leading procurement and supply chain management service that collects, assesses and monitors standard company information aligned to PAS 91, developed by BSI to reduce duplication within the construction industry.

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