8 questions you should ask window companies before contracting them

PVCu Sash Windows and window companies

Choosing the right company for your next home improvement project can be a minefield. So here are the top eight questions you need to ask before making any important decisions.

Do you have any accreditations?

Accreditations area fantastic way of checking a company is credible as well as regulated by an official authority. Here at Chase Windows, we’re an accredited member of the Double Glazing & Conservatory Ombudsman Scheme (DGCOS). Membership ensures that we are constantly vetted and also gives our customers free deposit protection insurance, a comprehensive warranty as well as access to an independent ombudsman.

Do you offer a window or door guarantee?

A guarantee ensures that you are covered if anything goes wrong with an installation. Hopefully you won’t need this but for peace of mind it’s good to check. As members of the DGCOS, all of our customers receive an insurance backed guarantee.

Timber DoorDo you have a showroom I can visit?

Sometimes seeing an image of a window or door is just not the same as seeing one up-close. With conservatories in a showroom, you can walk around one and visualise how it will fit into your home. They also give you the chance to ask any questions you may have. We have two showrooms; our main 6000 sq ft. Hoddesdon one and a smaller one in Enfield for our London customers. Our Hoddesdon showroom is open seven days a week so please come and visit us.

What if I don’t know what I want for my Hertfordshire home?

With so many options for your new windows, doors and conservatories, it can be difficult to decide what you want. Our designers are equipped to give you honest advice about the latest trends and what will suit your home.

How much experience does the double glazing installer have?

Modern glazed extensionEnsuring that a double glazing company has been around a while with many satisfied customers is a simple way to ensure you can rely on them. We’ve been serving London, Hertfordshire and Essex since 2002 with over 14,500 contracts completed. We have a long list of customers who have been very pleased with the work we’ve done for them.

How much does a window or door cost?

If you have a budget in mind, it’s helpful to find out a rough costing before going any further. We have an honest and transparent pricing policy. To help you find out an approximate cost first thing, use our instant online quote service. Simply enter your details to get access to our price guide. You can then contact one of our team for a free detailed proposal which is valid for 30 days.

How long will it take to install new windows or doors?

Depending on what you’re having done, you might want to find out how long it will take and how much disruption it can cause to your family. We will try and plan any work around your family to cause as little disruption as possible. Talk to us to find out how long your next project should take.

Are your products energy efficient?

Energy efficient products ensure that your home is comfortable, you don’t overspend on your heating bills and your home is environmentally conscious. We supply a wide variety of products that can improve your homes energy efficiency. All of our uPVC windows achieve an A + rating giving you the best protection against draughts and cold spots.

Are you environmentally friendly?Residence 9 Replacement Windows

Here at Chase Windows, we’re committed to reducing our impact on the environment. We offer energy efficient products and recycle where we can. We also try to work with suppliers who share our values. If you have any other questions or would like a quote, please get in touch today.


Over 11,000sq ft of space with of 6000 sq ft of purpose built showrooms, one of the largest home improvement showrooms in the North London, Hertfordshire and surrounding counties. With state of the art displays and kids area all under one roof.

Opening Hours: Monday – Friday 09:00 – 17:00 Saturday 10:00 – 16:00 Sunday 10:00 – 13:00


Smaller showroom with limited range available but good for client convenience.

Opening Hours: Monday – Friday 13:00 – 17:00 Saturday 10:00 – 16:00 Sunday By Appointment Only

Contact Us

Cobury House, Unit 1
11 Pindar Road
Hoddesdon, Herts
EN11 0BZ

189 Chase Side
Enfield, Middlesex

Tel: 0208 366 6500


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