Windows & doors
Patio Door Cost Calculator
Prices a patio door, where sliding and swinging are different jobs with different failure modes.
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 unit and the call-out. Patio doors are large, heavy and glazed, so the labour includes several people to handle and set them and careful work at the threshold. The type changes the job. A slider needs an accurately level track, because a sliding panel on an unlevel sill binds and eventually destroys its rollers. A hinged or French patio door needs the frame plumb like any swinging door, plus a threshold that seals against two leaves meeting in the middle. Both need a sill pan, since a wide low threshold is the most water exposed detail in a wall.
What moves the number
- Slider against hinged, which changes both the installation technique and what fails later.
- Size and weight, since a large glazed panel needs several people and sometimes lifting equipment.
- Threshold detailing, because a wide low threshold takes more water than any other opening.
- Whether the existing opening is level and square enough, which on a wide opening frequently it is not.
Where this one goes wrong
Level at the sill is the whole job on a slider, and a wide opening is where framing is least likely to be level. Setting a slider on an unlevel sill produces a door that is stiff, drops out of alignment and wears its rollers out, and no adjustment recovers it. Shim and check across the full width before fastening. On the water side, a patio threshold is low, wide and often at a deck or patio that can pond, so a sill pan and correct flashing matter more here than anywhere else, and sealant alone is not sufficient. The glass is required to be safety glazing, which large patio doors always are, so confirm any replacement panel matches.
Before you quote
- Check level across the full sill width and shim before fastening.
- Fit a sill pan and flash the threshold properly.
- Confirm the exterior grade or deck drains away from the threshold.
Where the rules come from
Questions
About this calculator
Why does my sliding patio door stick?
Most often because the sill is not level, so the panel binds and the rollers wear unevenly. It can also be dirt in the track or failed rollers, but if it has been stiff since installation the cause is usually the sill. Adjusting rollers masks an unlevel sill briefly rather than fixing it.
Sliding or hinged patio doors?
Sliders need no swing clearance and suit tight spaces, but depend on a level track and wear their rollers. Hinged doors seal better and are easier to adjust over time, but need room to open and a good threshold detail where the two leaves meet. Neither is simply better.
Why does water get in under a patio door?
Because the threshold is low, wide and frequently at a deck or patio that can hold water, which is the hardest combination in a wall to keep dry. A sill pan, correct flashing and grade that drains away are all needed. Sealant on its own will not hold it.
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.