Timber Sliding Sash Windows in London

At Harrington Windows, we expertly combine traditional craftsmanship with modern performance to create timber windows that preserve the charm of your property while enhancing energy efficiency. Our windows are designed to meet both aesthetic and functional needs, ensuring a perfect blend of style and durability.

We provide a comprehensive installation service, managing every detail from survey to final fitting, ensuring a seamless, hassle free experience with a single point of contact. With decades of experience installing sash windows, we are committed to delivering exceptional quality and ensuring your satisfaction throughout the entire process, including a detailed quote prior to starting the work.

We specialise in installing timber sliding sash windows that perfectly suit your property's needs. Whether for Georgian period homes or modern builds, our windows blend the traditional elegance of Victorian styles with modern performance features. We offer double glazing options that enhance both energy efficiency and the aesthetic appeal of your home, making them ideal for period properties, listed buildings, conservation areas, new builds, renovations, house extensions, and commercial spaces like hotels and offices across the UK.

With over 25 years of experience and FENSA accreditation, we pride ourselves on exceptional craftsmanship and attention to detail in every project. Our team includes heritage conservation specialists who have worked on Grade I and Grade II listed buildings across London. Our energy efficient windows improve both the look and functionality of your home while helping you save money long-term. We ensure a seamless, stress-free experience from start to finish, with your satisfaction guaranteed. Partnering with accredited suppliers like Accoya and Slimlite, we deliver products that meet the highest industry standards for durability, safety, and performance.