About Us

Our Story

Since opening in 2005 as a family-owned, professionally managed window company, Sash Windows London has built an outstanding reputation for delivering exceptional customer service and satisfaction. We have grown through the trust and personal recommendations of local homeowners who share our values of honesty, reliability, and expertise. Sash Windows London offers a friendly approach backed by highly knowledgeable staff to guide you through every step of the process.

Our Products and Services

We specialise in designing products tailored to our customers’ unique needs – from replicating heritage designs for conservation areas to modern, contemporary styles for today’s market.

Our comprehensive range includes:

We are committed to ensuring that high quality remains consistent throughout our entire product range & installation process. We are a registered FENSA member who regulates our installations and issues a GGFI 10-year insurance-backed guarantee with every installation. We are also registered members of Check-a-Trade, in which our customers submit reports on the quality of their building to give an honest review of our service.

Guarantees & Warranties

On receipt of your final balance, we will register your installation with FENSA and send out our guarantees and all receipts. We stand behind our craftsmanship, offering:

  • 30 year guarantee on rot, fungal and decay
  • 10 year guarantee on a paint finish
  • 10 years on PVCU
  • 10 years on glazing
  • 10 years on Installation
  • 5 years on ironmongery

We also offer services like bespoke colour matching, acoustic and slim/vacuum glazing options, planning application assistance for listed buildings, and environmentally-friendly product recycling.

Our Commitment to Sustainability

Sustainable Timber Sourcing

As an FSC (Forest Stewardship Council) certified company, we ensure all our timber products come from responsibly managed forests that provide environmental, social, and economic benefits. FSC certification prohibits illegal logging and deforestation in certified areas.

Eco-Friendly Manufacturing

We have an environmentally-friendly manufacturing process and recycle all removed products during installations. At the end of their lifecycle, the timber, glass, aluminum and PVCu materials we use are 100% recyclable.

Energy-Efficient Products

Our high-performance, A-rated products deliver sustainable living solutions by reducing energy consumption and environmental impact. By installing energy-rated windows, the average UK household can cut carbon emissions by approximately 3/4 of a tonne per year.

Our Glazing Partner

Saint-Gobain supplies innovative EcoClear glazing, allowing free solar heat gain to improve home energy efficiency and reduce heating bills.

Work With Us on Your Next Project

For over 15 years, Sash Windows London has been the leading window installer in the London and Surrey areas through our commitment to superior products, expert service, and environmental sustainability. Thank you to everyone who has stood with us.