How to Choose a Reliable Glazier: 7 Things to Check

1. A clear written quote, before any work

A reputable glazier assesses the job and gives you a written price before starting — not a vague verbal estimate that creeps up later. The written quote should set out the work, the glass specification, and the total cost, so there are no surprises on the final invoice.

Be wary of anyone reluctant to put a price in writing, or who quotes a fixed figure without seeing the actual window.

2. No call-out fee to attend and quote

You should not have to pay just to have someone come and look at the problem. A glazier confident in their pricing will attend, assess, and quote without a call-out charge, leaving you free to decide whether to proceed.

3. Full insurance — and proof of it

Glazing involves working at height, with heavy glass, often on someone else's property. A professional glazier carries public liability insurance and can provide proof on request. If they cannot, walk away.

4. A genuine workmanship guarantee

Good glaziers stand behind their work. Ask whether installations and repairs are backed by a workmanship guarantee — and what that covers. A firm that guarantees its work is far more likely to do it properly the first time.

5. Real availability for emergencies

If you might need them out of hours, check that '24/7' actually means a real person answers and a glazier is dispatched — not an answerphone that calls back the next morning. In an emergency, response time matters as much as price.

6. Honesty about repair vs replacement

A trustworthy glazier will tell you when a repair will do, rather than pushing a more expensive full replacement. If only the glass has failed, replacing the unit while keeping your frame is usually far cheaper — and an honest tradesperson will say so.

7. Clear contact details and local coverage

A real business has a proper phone number, covers a defined area, and is easy to reach. Check they genuinely serve your location and that you can get hold of them easily before, during, and after the job.

Tick these seven boxes and you will avoid the vast majority of glazing horror stories — and end up with work that lasts.