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At Sian Property Improvements, we want to ensure that you’re 100% confident about your decision to appoint us as your glazing specialists. 86% of our business comes from our existing clients direct recommendations to friends, family and colleagues reinforcing our drive for delivering excellence through every stage of our process. We understand how important peace of mind is when embarking on any property renovation so would like to tell you about the following glazing accreditations we are members of.


Sian is a Fenestration Self-Assessment Scheme registered company, as window and door replacements have to comply with certain building regulations. FENSA sporadically check and monitor our work to ensure that we’re meeting all the necessary building requirements.

Deposit & Insurance Backing Scheme

When you choose Sian, you’ll benefit from an insurance backed warranty.

Established in 1985 with over 750 carefully selected quality companies nationwide, IWA is a market leader for Deposit and Guarantee Insurance within the Home Improvement Industry. IWA give you peace of mind by providing deposit protection and guarantee insurance for up to 10 years.

NVQ Level 2 Diploma For Carpentry & Joinery (all installers)

This course is designed to prepare people to enter the industry in a training environment using simulated conditions. The tests are based on the learner showing what they can do as an individual through the completion of all the requirements of the qualification. Although a lot of the requirements are based on the Carpentry and Joinery good building knowledge and site safety also appear throughout the course further enhancing our installers skills.