Window repairs?

I am having my 23 yo house stained.
He pointed out that several windows had damage to the bottom molding that holds the glass in, and to the sill below it. The moldings has finger joints that are falling apart. The sills are flat when they should be angles, and so they have held water and become water damaged. He wants to grind them down to a proper angle and put wood hardener on them. When he gave me the price he saw 6 like that and included repairs in the price. Now he says another 12 are bad and should done, at about 90 minutes each.
I know absolutely nothing about home construction. Does this make sense? Is 90 minutes to replace the molding and repair the sill reasonable. It sounds high, but never having done it...
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toller wrote:

He charges by the minute?
That sort of repair is tough to guess at, and from a sketchy description and no knowledge of the quality and experience of your guy, who knows?
R
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I would question the repair, grinding an angle could be ok, but rot must be removed and bleach will kill it. Wood puty or Bondo may or may not last 10 yrs. Durhams will last 2-6 yrs. If you have the money new windows Argon lowE would be best . 90 minutes is not much time to fix a window, but who here can say how bad it is, nobody.
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As an average time it might be right. I don't have enough experience doing it nor can I see your windows.
The last time I did it involved four windows. Two of them just got scaped and coated with hardner (30m each). One required almost a quart of bondo to repair the sill. One had a few minor repairs to the sill and hardner (60-90m). The 4 of them would up taking an entire day to do. One other window where I had to cut and fit a new lower sash board for the upper window (old old double hung windows converted to single hung) took almost an entire day by the time I made the part installed and primed it.
Colbyt
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