Installation Day: What to Expect When Replacing Your Windows & Doors

Posted by | November 6, 2025

Thinking about upgrading your windows and doors? It’s a fantastic investment for your home, improving comfort, security and energy efficiency. But if you’ve never gone through the process before, you might be wondering what actually happens on installation day.

This guide will walk you through everything you need to know about the replacing windows process in the UK, with a focus on what to expect from window installation in Scotland.

Preparing Your Home

A little preparation makes installation day go smoothly:

  • Clear the area: Move furniture, ornaments and curtains away from windows and doors.

  • Protect valuables: Installers will bring dust sheets, but it’s best to cover or remove anything delicate.

  • Access: Make sure driveways and paths are clear so the team can bring in frames and glass safely.

Tip: If you live in a tenement flat, check if scaffolding or extra access arrangements are required, your installer should handle permissions.

What Installers Do on the Day

Here’s a step-by-step overview of the process:

  1. Arrival & setup - The installation team arrives with tools, protective sheets, and your new windows/doors.

  2. Careful removal - Old frames are removed with as little disruption as possible.

  3. Fitting the new units - New windows/doors are securely fixed, levelled and sealed.

  4. Finishing touches - Trim, sealant and handles/locks are added.

  5. Testing - The installer checks that everything opens, closes and locks correctly.

Typical Timeframes

  • Single door: 2-3 hours

  • Single window: 1-2 hours

  • Full house (8-12 windows + doors): Usually 2-3 days

These times can vary depending on property type and weather. In Scotland, installers sometimes adjust schedules if storms or heavy rain are forecast.

Common Disruptions (and How to Handle Them)

  • Noise & dust: Expect some drilling and hammering, plus dust when old frames are removed.

  • Weather delays: Particularly relevant in Scotland, heavy rain or strong winds may cause pauses in work.

  • Unexpected issues: Older properties can reveal hidden rot or structural challenges, but a good installer will explain solutions clearly.

Clean-Up and Aftercare

Our professional teams won’t leave your home in a mess. After installation you can expect:

  • Rubbish and old frames taken away.

  • All rooms swept/vacuumed.

  • Windows cleaned and polished.

  • A full demonstration of how to use your new locks and handles.

Aftercare tips: Wipe frames occasionally, check seals seasonally and lubricate hinges/locks once or twice a year.

Scotland-Specific Considerations

  • Weather: Installers work year-round, but high winds and rain can cause rescheduling.

  • Building regulations: Windows must comply with Scotland’s stricter U-value requirements for energy efficiency.

  • Tenement flats: Some may need scaffolding or stair access agreements. Always use an installer experienced with these property types.

FAQs

Do I need to be at home during installation?
It’s recommended. You don’t need to however, but being there helps if installers need quick decisions.

Will there be a lot of mess?
Not really. Good installers use dust sheets and tidy up thoroughly. There may be a bit of noise and dust during removal.

How long does a full installation take?
Most whole-house projects take 2-3 days, depending on size and weather conditions.

What if it rains on installation day in Scotland?
Light rain usually isn’t a problem. For safety, work may pause during heavy rain or storms.

Ready to Book Your Installation?

Replacing your windows and doors doesn’t have to be stressful. With the right team, the process is smooth, efficient and leaves you with a warmer, quieter and more secure home.

At The UPVC Company, we’ve been helping homeowners across Scotland with expert window installation and door replacements for years.

Book your free survey or installation quote today and let’s get your project started.