Handyman
Window Repair Cost Calculator
Prices window repair, where the lead paint rule applies to older houses.
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
Hours times crew times rate, plus parts and the call-out. Common window repairs are the sash balance or spring on a double hung, a failed lock or handle, worn weatherstripping, a cracked pane, a seized crank on a casement, and a rotten sill or sash on a timber window. Those are modest parts with reasonable access, and a repair is usually a fraction of a replacement window, which makes it worth doing on an otherwise sound frame.
What moves the number
- Whether the frame is sound, since repairing a rotten frame is temporary.
- Whether the building predates 1978, which brings lead-safe work requirements.
- Part availability on older or unusual window systems.
- Whether the glass needs to be safety glazing in that location.
Where this one goes wrong
In housing built before 1978, work that disturbs painted surfaces is subject to federal lead-safe requirements, including using a certified firm and specific work practices, and window work disturbs paint by its nature. That applies to repairs as well as replacement and it is not optional. On the technical side, probe the sill and lower sash before repairing a timber window, because repairing hardware on a frame that is rotting is money spent on something that will fail anyway. And check whether the location requires safety glazing before ordering glass, since tempered cannot be cut and has a lead time.
Before you quote
- Confirm lead-safe certification and practices on pre-1978 housing.
- Probe the sill and sash for rot before repairing hardware.
- Check whether the location requires safety glazing before ordering glass.
Where the rules come from
Questions
About this calculator
Is repairing a window cheaper than replacing it?
Usually much cheaper, where the frame is sound. Balances, locks, handles, weatherstripping, cranks and single panes are all modest parts. It stops being worthwhile when the frame itself is rotting, because the hardware will outlast what it is fixed to.
Does window work in an old house need special precautions?
In housing built before 1978, yes. Federal lead-safe rules apply to work disturbing painted surfaces, requiring a certified firm and specific containment and cleanup practices, and window work disturbs paint inherently. It applies to repairs as well as replacements.
My double hung window will not stay up. What is it?
The sash balance or spring has failed, which is a common and inexpensive repair. The sash is counterbalanced, and when that fails the window drops. Replacing the balance restores it without touching the glass or the frame, and it is a fraction of the cost of a new window.
The formula
total = hours x people x rate + parts + call-out, then sales tax
Put this calculator on your site
Free to embed. Paste this where you want it to appear. It stays up to date automatically because it loads from BDEVY.
Please keep the attribution line. It is the only thing we ask in return.
How to use this calculator
- Hours on site (h). Enter your own figure; the page starts at 3 h.
- People needed. Enter your own figure; the page starts at 1.
- Labour rate charged ($). Enter your own figure; the page starts at $85.
- Parts and materials ($). Enter your own figure; the page starts at $60.
- Call-out or diagnostic fee ($). 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 | 3 h |
| People needed | 1 |
| Labour rate charged | $85 |
| Parts and materials | $60 |
| Call-out or diagnostic fee | $95 |
| Sales tax | 0% |
What comes out
| Result | Value |
|---|---|
| Estimated total main result | $410 |
| Labour | $255 |
| Before tax | $410 |
| Sales tax | $0 |
About $410: $255 of labour, $60 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 |
|---|---|
| $43 | $284 |
| $64 | $347 |
| $85 example above | $410 |
| $128 | $539 |
| $170 | $665 |
Every other input is held at the example value while this one changes, which is not how a real job behaves. Treat it as a guide to which number matters most, not as five separate quotes.
What each figure means
- Hours on site (h)
- Measured in h, between 0 and 400, starting at 3 h.
- People needed
- A number, between 0 and 40, starting at 1.
- Labour rate charged ($)
- A money amount, starting at $85.
- Parts and materials ($)
- A money amount, starting at $60.
- Call-out or diagnostic fee ($)
- 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.