replacing outside spigot (plumber, cement, pressure, mount)

[duongz]

is it necessary to shut off the valve at the street? or can i just shut off the main valve inside my house

[Brian_M]

So long as water is off where you need to make the replacement, it doesn't matter what you shut it off.

[reed303]

Many outside spigots have their own shutoff valve inside near the spigot.

Unless maybe it's the "freezeproof" type, or doesn't get freezing temps.

In any case, the house main shutoff is OK.

[K'ledgeBldr]

Depending on the age of the house, and the hose bib location, you may need to turn the main at the street. Some plumbers used to plumb the front hose bib BEFORE the PRV/main shut off so you could have full pressure at that hose bib. Then others were a bit smarter and plumbed it AFTER the shut off- but BEFORE the PRV.

[turf3]

When you do replace it (are you finished already?) I recommend that you solder a threaded fitting and use a replacement hose bib with threaded mount rather than a solder fitting. Now any subsequent replacements can be done with a wrench.