Earthquake Tech

Earthquake Tech

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Formed in 1999 originally as part of Gemmell Construction LLC, Earthquake Tech was founded on owner Steve Gemmell's desire to retrofit his own home.

Earthquake Tech has developed into a full service basement and foundation specialty contractor. Professional seismic retrofitting company specializing in bolting down / connecting Portland's homes to their foundations for earthquake preparedness. Brick, non re-enforced, and failing foundations are our specialty.

Photos from Earthquake Tech's post 09/24/2026

Putting in another emergency gas shut off valve in the West Hills here in sunny Portland Oregon

09/16/2026

Another beautiful day for a gas shut off valve install.
I’m checking for any leaks on the install here

Photos from Earthquake Tech's post 09/09/2026

This was a fun install !
Triple header !

Photos from Earthquake Tech's post 09/03/2026

Got the opportunity to install another emergency gas shut off valve next to these beautiful trees !
Cover all day - didn’t feel a drop of rain !

Photos from Earthquake Tech's post 08/27/2026

Beautiful day for an install !

Photos from Earthquake Tech's post 08/26/2026

Installed a triple header today ! Split lines always make for a nice puzzle to solve.

Photos from Earthquake Tech's post 08/19/2026

This one was a little funky to start - wasn't sure what was going on with the meter as it was cocked at an angle - these valves have to be plum or level to function correctly. Luckily the original pipe had been plumbed in a way that caused the meter to be pushed into this angle (weird !!!!) and I was able to dig the meter line out a little bit as well - and I got this think plumbed out just right !

Message us to get one of these handy little emergency gas shut off valves installed at your house !

Photos from Earthquake Tech's post 08/13/2026

Another great day installing emergency gas shut off valves

08/11/2026

How to reset the Pacific Seismic emergency gas shut off valve !
This is helpful for those with overzealous landscapers working around the valve !
It takes some force to trigger the valve ! Easy to reset should you need too

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2310 N Kerby Avenue
Portland, OR
97214

Opening Hours

Monday 7:30am - 5pm
Tuesday 7:30am - 5pm
Wednesday 7:30am - 5pm
Thursday 7:30am - 5pm
Friday 7:30am - 5pm