How Long Does Installation Take?
Written by Cornwall Composite DoorsReviewed by Cornwall Composite Doors installersLast updated July 20264 minute read
Short answer
A single composite door installation typically takes 3-5 hours, including removing the old door, fitting and sealing the new frame, hanging the door, and fitting hardware. Complications such as damaged brickwork, non-standard openings, or stone reveals can extend this.
One of the most common questions before booking is simply how long you'll need to keep the day clear. The answer is usually straightforward, though a few factors can push the job longer than expected.
Typical timing for a single door
Most single composite door installations take between three and five hours from arrival to final handover. This covers removing the old door, preparing the opening, fitting the new frame, sealing it in, hanging the door, and fitting the hardware.
What can extend the job
Older properties with granite or solid stone reveals sometimes need extra time to prepare a true opening. Damaged brickwork discovered once the old frame is out, non-standard sizes, or porch structures that limit access can also add an hour or two.
- Stone or granite apertures needing extra preparation
- Damaged brickwork found during removal
- Bespoke or oversized door sizes
- Restricted access, such as narrow porches
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Multiple doors on the same visit
If you're having a front and back door replaced together, expect a full day rather than two half-days, since fitters can work efficiently once set up but each door still needs its own careful fitting and sealing.
Curing and drying time
The door is usable as soon as the fitters finish, but sealants and foam fully cure over the following 24 hours. Avoid pressure-washing or heavy weather testing the seal immediately after installation to let everything set properly.
Frequently asked questions
Can I use the door straight away?
Yes, the door is fully functional the moment installation is finished, including locking and operating normally. The main thing to avoid immediately after is jet-washing the frame while sealants are still curing.
Do I need to take the whole day off work?
For a single door it's rarely necessary to take a full day, but you do need to be available throughout the visit since exact start times can shift. Half a day is usually a safe estimate.
Why do some installers quote longer than others?
Timing estimates vary with how thorough a company is about preparation, sealing, and testing. A rushed job that skips careful packing and sealing may be quicker but risks draughts and misalignment later.
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More installation advice
- What Happens During Composite Door Installation?From dust sheets to final checks, here's what a professional composite door fitting actually involves.
- Can Composite Doors Be Installed in One Day?Most homeowners are surprised at how quickly a new composite door can be fitted.
- Preparing for Door InstallationA little preparation before the fitters arrive makes installation day quicker and smoother.
