Arched Window Installation Guide - Arched Windows | Quickslide

Arched Window Installation Guide

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Due to the shape of arched windows, it is important that you are extremely careful when it comes to the installation. Arched windows come in all shapes and sizes, and we want to help you carry out a successful installation. Please always liaise with your manufacturer and ask for any technical data and resources for your arched windows.

Installing windows, especially arched windows, is a complex job. You may want to outsource your work to a professional, or if you want to do it yourself, here is our handy guide. If you are installing a window into a new build, this will take considerably less time than replacing a window. If you have any questions about this guide, please get in touch with us.

how to install arched windows

Measuring Arched Windows

If you have an opening for an arched window, you should leave the measuring to an expert. It’s of outmost importance that the shape of the arch in the masonry and the arch of the window match exactly. If the arched opening is a true arch in a new build, we may not require a template as the curve will be even across both sides. However, for any bespoke or unique arches, we will require a template to ensure your new window will fit into the opening. Get in touch through our online contact form to find out more.

Equipment Needed

We advise you to be as well prepared as possible when installing arched windows. Please check that you have the following equipment and PPE before carrying out your installation:

  • Cut Resistant Gloves
  • Steel Toe Footwear
  • Tape measure
  • Level
  • Silicone gun with silicone to match the external frame
  • Foam gun
  • Fixing screws
  • Hammer
  • Screwdriver
  • Chisel
  • Hand or electric saw

Installation Process

Step 1 – Assessment

You must assess the property and area that you are working on. Take note of any places that may need extra assistance and ensure no concerns within the property itself.

You will also need to check that you have the correct measurements before you begin the installation.

Step 2 – Remove Existing Windows

You must assess the property and area that you are working on. Take note of any places that may need extra assistance and ensure no concerns within the property itself.

You will also need to check that you have the correct measurements before you begin the installation.

arched window installation

Step 3 – Check Opening

You may need to further cut the opening into the wall to ensure that it is the perfect size for the new arched windows. Please consider the tight sizes, which will become handy for tolerances. 

We advise you to check the property before any existing structural elements, such as plumbing, which may affect the installation. If you are an installer, work with the homeowner to discuss the arched aperture beforehand.

Step 4 – Placing Window

Firstly, you will need to place the arched windows outside into the opening. Ensure throughout the installation that the window is level. To hold the arched window in place, place fixing screws or packers in place. 

You can set the window against the stone sill (if applicable) and push the top up towards the frame from the inside. Once you are happy that the arched windows are level, you can screw them in place. 

Step 5 – Final Touches

There may be specific parts that you need for your arched windows. We recommend getting in touch with your manufacturer. They will have technical data sheets to help you fit the additional features. 

Once the frame and sashes have been inserted into the opening, you will want to check that the windows post no obstructions. You will want to add a sealant around parts of the window, which will help to retain its look and protect the property. Test that the window operates as it should.

If you are installing on someone else’s property, it is good practice to tidy up. You want to leave the property as clean as when you arrived. Ensure that the property is structurally intact and that the window is in place.

Arched Window Installation Advice

We understand that you may have questions about our arched windows. We have built up years of experience and know arched windows inside out. Send us your questions through our online contact form, and a member of our team will get back to you as soon as possible. Alternatively, you can also give us a ring on 03332 412 240.

Here at Quickslide, we work with excellent professionals, including FENSA approved installers. If you are a homeowner, find your local installer today. Simply enter your postcode and find your nearest fitter. Soon enough, you will be designing your new windows, and before you know it, it’s installation day.

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