Earthquake Tech – Portland’s Authority in Seismic Retrofitting & Seismic Rehabilitation Since 1999

About Us

Since our very beginning the safety of you - our clients - has been our number one company priority. We are Oregon's premier seismic and foundation specialists, founded in 1999.

SEISMIC RETROFIT CONTRACTOR

We are licensed, bonded, and insured as such. Make sure anyone you work with is specifically licensed for this work.

AUTOMATIC GAS SHUT OFF VALVES

We professionally equip your home with American-made automatic gas shut-off technology, backed by a 30-year warranty and workmanship guarantee.

WE LISTEN & RESPOND

Service and communication are a pillar of our success. We are always available to alleviate any concerns you might have.

GENERAL CONTRACTOR

We are a General Contractor and can help you with additional improvements beyond your seismic retrofit.

Our Projects

Just a sampling of our latest projects.

Residential Retrofit

This is one of our most common residential

Basement Retrofit

This basement retrofit was extensive because of the

Kitchen Upgrade

Kitchen upgrade: expansion and updates including egress and

OUR CLIENTS

VIEW ALL TESTIMONIALS

I couldn’t have been more pleased with the quality of work done by Steve Gemmell and his dedicated and competent team. Earthquake Tech did a truly masterful job on one of the most complex residential seismic retrofits in Portland. They have an excellent reputation that is well-deserved. I would absolutely

Stephen

We’ve hired Earthquake Tech twice, for Gas Valve Shut-off Installation and full Earthquake Retrofitting. In both cases, and in all of our interactions with the Earthquake Tech team, they have exceeded expectations. The work has been outstanding: on time, on budget and very thorough. And the working relationship has been

Nick

Earthquake Tech retrofitted my home this summer and they did a great job. They were knowledgeable, professional and courteous. They charged a fair price and finished the work ahead of schedule. I would happily recommend them to any of my friends who are considering securing their homes.

Laurie

Steve anchored my SE Portland bungalow, built in 1925, to its foundation around eleven years ago and it hasn’t budged ever since. He did his work quickly and thoroughly and took the time to patiently answer any questions that I had. Hire him!

Nicholas

This company was great to work with. These guys know what they’re doing and do what they say they’re going to. I’m a contractor myself, doing mostly finish carpentry these days, and was pleasantly surprised to see such high-quality work done is such difficult conditions.

Joseph

Your crew did a great job. Everything looks good and I’m happy.

Ted

Hi Steve and Team, Just wanted to drop you a note to thank you for the great job your company did on my retrofit. I can’t say enough positive things about your team (Nick and company) and how they managed my project; they delivered above and beyond what one looks

Nancy

Architect

Why Choose Us

No matter the size job, we are 100% dedicated to you and your project. From residential homes to commercial and soft-story buildings, let us partner with you to protect your greatest assets.

PRODUCTS & MATERIALS

The products and materials we use in retrofitting are tested to rigid industry specifications.

NEED INSURANCE?

Don't let your own insurance claim be denied because a contractor isn't licensed as a "seismic retrofit contractor" like we are.

REFERENCES AVAILABLE

Don't just take our word for it. You can connect with previous clients about the level of work we perform.

HILTI CERTIFIED

All our crews are certified by Hilti to professionally and accurately install their anchors.

About Us

SEISMIC RETROFIT CONTRACTOR

AUTOMATIC GAS SHUT OFF VALVES

WE LISTEN & RESPOND

GENERAL CONTRACTOR

OUR SERVICES

Gas Valve Shut Off

Basement ADU Conversions

Inspection Services

Water Heater Strapping

Our Projects

Residential Retrofit

Tenant Improvements

New Roof!

Living Room Expansion