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Window seal repair

gpt 5 mini

01/10/25, 12:14

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Scope of Works

 

• Inspect perimeter seals and sealed glazing units to identify failed seals, condensation or failed units

• Remove degraded external and internal sealant and prepare the joint for resealing

• Apply appropriate backing material and new sealant around the frame and glazing bead where required

• Check for failed sealed units and provide a separate quotation for unit replacement if condensation between panes is present

• Note and report any frame rot or structural issues and carry out minor repairs or recommend further work

• Clean up and remove small amounts of waste; tradesperson will wear PPE and take precautions for mould or contamination where found

 

Typical Cost

 

Charge Type

Low £

High £

Notes

Call-out / Minimum

£80

£120

First 30 min on site

Labour per hour

£45

£75

Per operative

Materials

£15

£80

Sealant, backer rod, glazing beads

Disposal

£0

£30

Small waste loads

Extras (e.g. scaffolding)

£0

£600

Scaffold, MEWP or high‑access work

TOTAL (most jobs come in here)

£140

£550

Most single‑window reseals; multiple windows or access work cost more

 

Time on Site

 

Most simple reseal jobs take 1–3 hours on site for a single or neighbouring windows; replacing a sealed unit or working at height typically takes 2–4 hours per window and longer if scaffold or bespoke glass is required.

 

Questions to Ask Your Tradie

 

• Do you think the sealed unit needs full replacement or will a reseal solve the issue?

• Can you provide examples or references for similar reseal work you have completed?

• Will you need scaffold or a cherry picker and how will that be charged or organised?

• What warranty do you offer on the seal and materials and for how long?

• Will you tidy up and remove old sealant, mouldy material or contaminated waste?

• Do you carry public liability insurance and can you provide an itemised written quote before starting?

 

How to Avoid Surprises

 

• Ensure clear external access and unlock any relevant windows or gates

• Reserve parking close to the property or tell the tradie about permit restrictions

• Advise the tradie of prior condensation, mould or previous repairs and any restricted access

• Expect additional time and cost for scaffold, permissions or if sealed units need ordering

• Secure pets and clear a workspace inside for ladders and tools

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