Windows & doors
Glass Replacement Cost Calculator
Prices a broken pane, where what the glass has to be is set by where it is.
Result
A planning estimate, not a quote. Access, the age of the equipment, what is found once it is opened up and local labour rates all move the real figure, sometimes a long way.
Get a Free Business AuditHow the calculation works
Time, crew, the glass and the call-out, plus glazing materials. Glass is priced by area and by type, and the type is often not a choice. Annealed glass is the cheapest and is what breaks into sharp shards. Tempered is heat treated, several times stronger, and breaks into small blunt pieces, which is why it is mandated in hazardous locations. Laminated has an interlayer that holds the fragments in place, which suits security and sound as well as safety. The same opening in the same house can require different glass depending on how close it is to a door, a floor or a bathing area.
What moves the number
- Where the pane is, since that determines whether safety glazing is required.
- Glass type, because tempered and laminated cost more and are made to order rather than cut on site.
- Whether the opening needs boarding up while the glass is on order, which is a separate visit.
- Thickness, which rises with pane size and affects both cost and handling weight.
Where this one goes wrong
Replacing safety glazing with ordinary annealed glass because it is cheaper and immediately available is the serious error here. Safety glazing exists in those locations because people fall into it, and the failure mode of annealed glass in a door sidelight or a shower screen is severe injury. It is also a code violation that a later inspection or an insurance claim will find. Check the location against the adopted code and, where the original pane carries a tempering stamp in the corner, treat that as evidence of what has to go back. Two visits, one to board and one to glaze, is the honest answer when tempered glass has a lead time.
Before you quote
- Look for a tempering stamp in the corner of the original glass.
- Check the location against the safety glazing requirements in force locally.
- Quote boarding up separately if the glass has a lead time.
Where the rules come from
Questions
About this calculator
How do I know if a pane needs to be tempered?
Look for a stamp in a corner of the original glass, which tempered panes carry, and check the location against the adopted code. Glazing near doors, near baths and showers, adjacent to stairs, and large panes close to the floor generally require it. Where there is doubt, the safety glazing is the answer that is never wrong.
Can I use ordinary glass to save money?
Not in a location that requires safety glazing. Annealed glass breaks into sharp shards, which is precisely the hazard the requirement exists to prevent, and substituting it is both a code violation and a real injury risk. In locations with no requirement, ordinary glass is a legitimate cheaper choice.
Why can't the glass be cut on site?
Ordinary annealed glass usually can be. Tempered cannot, because the heat treatment is done after cutting and the finished piece will shatter if worked. Laminated needs specific equipment. So anything but plain glass is ordered to size, which is why a broken tempered pane means a wait and often a temporary board.
The formula
total = hours x people x rate + parts + call-out, then sales tax
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How to use this calculator
- Hours on site (h). Enter your own figure; the page starts at 16 h.
- People needed. Enter your own figure; the page starts at 1.
- Labour rate charged ($). Enter your own figure; the page starts at $92.
- Parts and materials ($). Enter your own figure; the page starts at $4,200.
- Call-out or diagnostic fee ($). Enter your own figure; the page starts at $95.
- Sales tax (%). Leave at zero if you are quoting before tax.
The result updates as you type, so you can try a figure, see what it does to estimated total, and change it back. Nothing you enter is sent anywhere or saved.
A worked example
These are the figures the calculator opens with. Every number in the results column below is produced by the same calculation the page runs, so you can follow it through before putting your own figures in.
What goes in
| Input | Value |
|---|---|
| Hours on site | 16 h |
| People needed | 1 |
| Labour rate charged | $92 |
| Parts and materials | $4,200 |
| Call-out or diagnostic fee | $95 |
| Sales tax | 0% |
What comes out
| Result | Value |
|---|---|
| Estimated total main result | $5,767 |
| Labour | $1,472 |
| Before tax | $5,767 |
| Sales tax | $0 |
About $5,767: $1,472 of labour, $4,200 of parts and a $95 call-out.
How sensitive the answer is
Holding everything else steady and changing only labour rate charged, this is what happens to estimated total. It is worth knowing which of your inputs the answer actually hinges on, and which barely move it.
| Labour rate charged ($) | Estimated total |
|---|---|
| $46 | $5,031 |
| $69 | $5,399 |
| $92 example above | $5,767 |
| $138 | $6,503 |
| $184 | $7,239 |
Every other input is held at the example value while this one changes, which is not how a real job behaves. Treat it as a guide to which number matters most, not as five separate quotes.
What each figure means
- Hours on site (h)
- Measured in h, between 0 and 400, starting at 16 h.
- People needed
- A number, between 0 and 40, starting at 1.
- Labour rate charged ($)
- A money amount, starting at $92.
- Parts and materials ($)
- A money amount, starting at $4,200.
- Call-out or diagnostic fee ($)
- A money amount, starting at $95.
- Sales tax (%)
- Leave at zero if you are quoting before tax.
What the results tell you
| Result | What it is |
|---|---|
| Estimated total | The headline result. A money figure. |
| Labour | A money figure. |
| Before tax | A money figure. |
| Sales tax | A money figure. |
Estimating is the easy part
The jobs you never hear about cost more than the ones you mis-measure. BDEVY builds the marketing, systems and automation that bring them in.