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How Long Does It Take to Install Replacement Windows?

(4 min read)

Installing replacement windows can be an exciting and rewarding project for your home, and, whilst installation isn’t quite as simple as some make it out to be, it doesn’t have to be a headache either.

As the years go by some of the windows in your home will likely need to be replaced. Naturally, windows are usually subject to damage and/or wear over time, through exposure to weather conditions and continuous use.

It’s likely the average homeowner doesn’t know how much time it takes to install replacement windows unless they’ve previously experienced the process. When considering how long window installation takes, you should keep in mind that this process depends on a variety of factors.

Quick FAQs

How long does it take to install a window?

For a regular uPVC window it typically takes a professional window installer between 60-120 minutes.

Can all the windows in a house be replaced in one day?

Yes. In many cases the all the windows can be replaced in a single day for an average sized family home.

Below, we will explain the factors that influence the time needed to install replacement windows.

If you have decided you want to replace your windows, please keep reading.

Timeline of a Window Installation

So, how long does it take to install replacement windows?

Quick Answer: The time needed to replace a standard window can be as little as 1 to 2 hours. When it comes to replacing a lot of big custom windows, one or two days may be required. Skilled window installers can typically replace between 4 to 6 windows per day.

However, this is not a cut-and-dried process. The timeline for a window replacement can be pretty long, even though the job is fairly simple.

Different types of windows will take a different amount of time to be installed. For example, custom windows take longer because they have to be specially ordered.

Normally, the timeline for the window replacement job can vary between four to fifteen weeks, after the initial evaluation of a window replacement contractor.

You don’t have to be discouraged by the timeline. Having a leaky window fixed and putting in insulation can cut your energy costs all year long. Your savings will last a lot longer than your wait in this case.

Factors Affecting the Timeline of a Window Installation

How fast do you expect your new windows to arrive? It is no secret that the length of the window installation process depends on the installer’s schedule.

As we mentioned before, a few factors can affect the total time it takes to replace your windows.

Here are the most important ones:

The manufacturer: The manufacturer has to deliver the windows to your installer. If the manufacturer cannot deliver them on time, the timeline from purchase to installation may be prolonged.

The complexity of the process: Sometimes, a homeowner needs to replace only one pane of broken glass. Other times, they’ll require the installation of a whole house’s worth of double-glazed windows. If the second scenario refers to your case, you should arm yourself with patience because installing more windows means a longer timeline.

Furthermore, the larger the windows, the more panes of glass, and the longer the job will take, especially if they are custom and have to be specially ordered.

The installer: The installer’s experience level and reputation are of keen importance.

Obstructions: They can be in front of the windows, around the window openings, or on the inside of the home, such as plants or heavy outdoor furniture.

Time of the year: Keep in mind that during the summer season window companies can get extremely busy. Moreover, installing one window at a time during the winter may minimize heat loss, but it might make the installation process much longer. You should also keep in mind that if the rain is falling particularly hard, it may result in moisture entering the house. Working in strong winds or thunderstorms is not safe.

Why Should I Replace My Windows?

With a little planning and effort, replacing your windows can be a great investment for your home. New windows are worth saving for. They will improve ventilation and provide better structural integrity than their older counterparts. They will also result in savings on your energy bill every month. New windows are worth the investment, so don’t wait too long to replace them.

But, how do you know if it’s time to replace your windows? Read our post: 5 Signs That It’s Time to Replace Your Windows, to get answers to your question.

How Much Does It Cost to Replace a Window?

For many replacing their home’s windows is a considerable investment. But the good news is that the benefits of replacing them will hopefully outweigh the cost burden.

Want to know how much the installation process will cost you?

Use our Instant Online Pricing tool to get an instant quote. Simply choose the type, size, and the number of units you require to get your instant quote.

Instant Online Double Glazing Quote

Choosing Your New Windows

In this article, we have provided information on how long it takes to install replacement windows. We hope this information was helpful and answered any questions you may have had. However, if you have further questions, please don’t hesitate to call us and one of the team will endeavour to help.

Ready to choose your new windows? Visit our showroom or get in touch with us. We will be glad to help you find the right replacement windows to fit your needs.

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David Bryant
David Bryant
Very happy with our new door . The support team kept us up to date on everything and the guys on the installation team were early , friendly and professional. Great value all round
Kate Hulbert
Kate Hulbert
Was looking for a new front door, to replace our tragically 80's monstrosity. The Three Counties website was great as i could see and design the door i wanted and then get a quote for it. The sales team was really quick to respond, and not at all pushy. A survey was easily arranged, to confirm sizes etc and the installer turned up precisely on time, was super friendly, efficient, neat and very tidy. Whole process took about 4 weeks, beginning to end, and I now have the door of my dreams! The only downside is my neighbors keep pestering me for details of who did the job. No hesitation in recommending Three Counties.
Nikki Wade
Nikki Wade
I'm very happy with my new conservatory - Mark and David did a brilliant job of the build and resolved any issues I had to make sure everything was finished to a really high standard.
Dominic Blood
Dominic Blood
This is the second time I have used Three Counties , a few years later and in a different house this time. It’s great to see the quality of the windows and workmanship have remained 5*. A stress free installation from start to finish, all windows installed have transformed how our 70s style house looks and now no worries of mould as a result of the old timber framed windows. The Installers who completed our job were amazing, and I mean amazing! Hard working, extremely skilful at their trade, polite and very tidy. Each day when they left they hovered up and left the place in the best condition they could. The whole process from the initial quote , measurements and dealing with the office team before and after the installation has been a true pleasure , if only all businesses were as efficient as this. Highly recommended for anyone considering new windows or any other products they provide and I won’t hesitate to use them again. Thank you Three counties!
Kim Stevens
Kim Stevens
I shopped around and three counties came in at the most reasonably priced, and I used the buy now pay later option. Really happy with my new door and window, which were both fitted in one afternoon. The customer service was very good throughout and everything went smoothly.
I had some windows fitted a few years ago and have recently had a problem with one of the locking mechanism failing. I called 3 Counties, who had a base call out charge, where a lovely lady took my details, refered to my file and we agreed a date when the fitter would come out and inspect the issue. Paul arrived bang on time and was very helpful. He checked the window, confirmsd the issue and promptly fixed it there and then with a replacement part he had on board his van. He was polite and knowledgable. Very efficient. Thank you 3 Counties.
samie dowling
samie dowling
I had new windows fitted and they look amazing, make such a difference. House is much warmer and soundproof! Staff were very professional, done the job so quickly and cleaned up after. Would definitely recommend.
Ywain Martin
Ywain Martin
Excellent service throughout the process. Very happy
Victoria Stone
Victoria Stone
Very happy with our new windows. Fitters were respectful and tidy. From start to finish. Thanks again.