FAQs

Discover answers to common window sash queries, call 020 8017 1632

Our frequently asked questions

We understand that you may have questions about your sash windows, and we’re here to help. Whether you’re considering repairs, replacements, or simply want to learn more about your beautiful windows, this FAQ section should provide the answers you need.

Reach out for tailored sash window solutions

Contact The London Sash Window Company today for bespoke solutions tailored to your needs. Dial 020 8017 1632, shoot us an email at office@londonsash.com or simply fill out our convenient contact form.

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What areas do you cover?

We extend our services across all London postcodes and occasionally beyond, ensuring that our expertise reaches you wherever you are.

I live in a period property / conservation area / listed building, are you able to help me?

Absolutely. With extensive experience navigating conservation areas and listed buildings, we’re adept at addressing the unique challenges and constraints they present. In particular we have detailed knowledge of working within the Crown Estate and the restrictions this imposes.

I have single glazed sash windows, can I replace these with double glazed sash windows?

Yes. It is often possible to change just the sashes from single glazed to double glazed without replacing the frame. Alternatively, the window can be fully replaced which would then be double glazed to comply with building regulations.

Can you explain the differences between different types of double glazing?

Not all double glazing is the same and some provide more thermal insulation than others. We will happily talk you through the various options and benefits of the different types.

Do you just provide sash windows?

While sash windows are our speciality, we also offer premium-quality casement wooden windows and French doors to cater to diverse tastes and requirements.

Are you FENSA regulated?

Yes, absolutely. If we replace your windows, you will receive a FENSA certificate at the end of the installation which you would need to provide when you sell your home.

Are your windows guaranteed?

Of course. Our comprehensive guarantee covers all aspects of your windows, providing you with assurance and protection backed by IWA who are underwritten by Lloyds of London.

Are your windows painted?

All our new windows are fully painted and decorated. The paint finish is a special microporous finish that allows the timber to breathe which will reduce the risk of rot. Unlike standard oil paints, the paint is less likely to blister and crack, bolstering durability and longevity.

What timber do you offer?

Choose from our meticulously sourced treated softwood like Accoya, as well as hardwood options, all sourced from responsibly managed forests to ensure sustainability and quality.

Do you offer any other types of glass?

Enhance security, safety, and insulation with our range of speciality glass options tailored to your specific needs, including frosted glass for added privacy.

How long does it take to completely replace my windows?

This will depend on the quantity and size of the window. When you speak with our experts, we will happily talk you through the whole process, bespoke to your property.

How much will it cost to replace my windows?

We are happy to provide you with a guide price over the telephone. If you would like to make an appointment for us to visit, we can provide a full, free survey with a written quote shortly afterwards.

Do you handle minor problems like broken glass and broken sash cords?

Our comprehensive service encompasses everything from overhauling to draught proofing, ensuring your windows are in optimal condition.

Can you advise on the impact of window replacement on my property value?

While it’s challenging to quantify the precise value increase, living in an area where sash windows are prevalent indicates a preference among residents, potentially positively impacting property value.

Do you undertake commercial work?

We provide both domestic and commercial services. For commercial work we are able to provide a full Health and Safety Policy, Method Statements, Risk, and Control of Substances Hazardous to Health (COSHH) assessments.

Are your carpenters employed or sub-contractors?

For all our domestic work we only use fully employed carpenters who are covered by employers’ liability insurance.

Do you have a question not answered here? Let’s chat!

Don’t hesitate to contact our friendly team, we’re here to help you every step of the way. Call us at 020 8017 1632 or email office@londonsash.com to schedule a complimentary consultation with our specialists.