*The Angi rating for Earthquake Retrofitting companies in Troutdale, OR is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Earthquake Retrofitting needs.
*The HomeAdvisor rating for Earthquake Retrofitting companies in Troutdale, OR is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Earthquake Retrofitting needs.
Last update on April 28, 2025
Thousands of NW homeowners have trusted TerraFirma Foundation Systems to keep their homes safe, dry and stable since 2005. Nearly half of our business comes from referrals or repeat customers. We can help you too! TerraFirma is the NW expert in home foundations, basement and crawl space waterproofing, concrete leveling, and wall stabilization.
"I hired TerraFirma Foundation Systems to level my home, expecting a professional job with clear communication, but the entire experience has been incredibly disappointing and costly. From the start, I hired the company to level the floors in my home, specifically to address a nearly 3-inch dip in my kitchen area, a 13x10 room. Yet after they “completed the job,” I still have a 1.5-inch dip in the center of the kitchen, and a corner of my home/kitchen that sits half an inch higher than it should be (above 0%), creating a full inch rise from the living room to the kitchen. Now they’re saying that leveling the kitchen wasn’t included in the original scope, blaming the remaining dip on my kitchen island and fridge being “too heavy” and lacking proper support—an issue they failed to identify in the initial assessment. To properly address this problem, they’re now asking for an additional $7,500, claiming this work was never part of the original job. This feels like a classic bait-and-switch tactic, and I can’t help but feel taken advantage of. To make matters worse, I discovered that they used an uncalibrated machine during the initial leveling when installing, which raised my house over an inch more than necessary, causing significant damage that wasn’t there before. Partway through the lift, they even asked me to sign a waiver to get my house closer to 0% level, effectively absolving them of any damage caused. The technician stopped mid-lift to show me the damage that was already occurring and warned that more would likely follow if we continued. I agreed to proceed, trusting their assurances and assuming their equipment was properly calibrated. I even pointed out to the technician at the time that it did not look level, and he assured me the machine was correct. Now, they refuse to take any responsibility for the resulting damage, dismissing it as “standard” and providing terms within the contract absolving them—despite them overcorrecting the home. There were also repeated measurement discrepancies, with reports showing one reading and verbal statements/emails suggesting different levels. When I sought clarification, I received vague responses and empty apologies. After all this, and nearly $30,000 invested, my floor remains unleveled. The only resolution TerraFirma Foundation Systems has offered is for me to pay additional money to level the kitchen and to wait for the overcorrected area to “settle naturally”—a process that, according to their technician, could take anywhere from two months to ten years. I hired TerraFirma Foundation Systems to fully level my home, not to leave me with an incomplete job, inconsistent results, and vague promises. If you’re considering foundation work, I strongly recommend looking elsewhere—this company has left me with extensive damage, unexpected costs, and a significant amount of frustration."
Chuck G on November 2024
Thousands of NW homeowners have trusted TerraFirma Foundation Systems to keep their homes safe, dry and stable since 2005. Nearly half of our business comes from referrals or repeat customers. We can help you too! TerraFirma is the NW expert in home foundations, basement and crawl space waterproofing, concrete leveling, and wall stabilization.
"I hired TerraFirma Foundation Systems to level my home, expecting a professional job with clear communication, but the entire experience has been incredibly disappointing and costly. From the start, I hired the company to level the floors in my home, specifically to address a nearly 3-inch dip in my kitchen area, a 13x10 room. Yet after they “completed the job,” I still have a 1.5-inch dip in the center of the kitchen, and a corner of my home/kitchen that sits half an inch higher than it should be (above 0%), creating a full inch rise from the living room to the kitchen. Now they’re saying that leveling the kitchen wasn’t included in the original scope, blaming the remaining dip on my kitchen island and fridge being “too heavy” and lacking proper support—an issue they failed to identify in the initial assessment. To properly address this problem, they’re now asking for an additional $7,500, claiming this work was never part of the original job. This feels like a classic bait-and-switch tactic, and I can’t help but feel taken advantage of. To make matters worse, I discovered that they used an uncalibrated machine during the initial leveling when installing, which raised my house over an inch more than necessary, causing significant damage that wasn’t there before. Partway through the lift, they even asked me to sign a waiver to get my house closer to 0% level, effectively absolving them of any damage caused. The technician stopped mid-lift to show me the damage that was already occurring and warned that more would likely follow if we continued. I agreed to proceed, trusting their assurances and assuming their equipment was properly calibrated. I even pointed out to the technician at the time that it did not look level, and he assured me the machine was correct. Now, they refuse to take any responsibility for the resulting damage, dismissing it as “standard” and providing terms within the contract absolving them—despite them overcorrecting the home. There were also repeated measurement discrepancies, with reports showing one reading and verbal statements/emails suggesting different levels. When I sought clarification, I received vague responses and empty apologies. After all this, and nearly $30,000 invested, my floor remains unleveled. The only resolution TerraFirma Foundation Systems has offered is for me to pay additional money to level the kitchen and to wait for the overcorrected area to “settle naturally”—a process that, according to their technician, could take anywhere from two months to ten years. I hired TerraFirma Foundation Systems to fully level my home, not to leave me with an incomplete job, inconsistent results, and vague promises. If you’re considering foundation work, I strongly recommend looking elsewhere—this company has left me with extensive damage, unexpected costs, and a significant amount of frustration."
Chuck G on November 2024
We are a seasoned remodeling company joyfully serving Portland since 2004. We have 8-10 full time employees. We have all been working together for years. We only bring people that we know or who come highly recommended to the job site. We use a small group of very reliable licensed subs for plumbing, electrical and HVAC work. We stand behind our work and the work of all of our subs. We do all aspects of Residential Remodeling; Basement, Garage, and Attic Conversions, Additional Dwelling Units. Kitchen and Bathroom Remodels. Basement foundation wall/floor sealing. Decks and Porches, exterior painting, and fences. Flooring, tile, built-ins, stairs, drywall, etc. We also do handy man repairs/jobs...all aspects of home maintenance and repair. We have been a partner in the City of Portland's FIR program (Field Issued Remodeling Permits) for over a decade. CCB LICENSE #: 173347. Call today 5039577559. Website- http://www.sundogconstruction.com
"Excellent! The Sundogs, crew of 3, did a marvelous job of changing my wet and moist basement into a beautiful apartment. Floor was removed and a subcontractor hired to replace the floor after complicated drainage system and sump pumps were installed. Due to the small crew and the complicated problems, it took longer to finish, but I have now a beautiful apartment in my basement. They are dear and honest people who work hard. Thank you Sundogs!"
Margriet H on December 2024
We are a seasoned remodeling company joyfully serving Portland since 2004. We have 8-10 full time employees. We have all been working together for years. We only bring people that we know or who come highly recommended to the job site. We use a small group of very reliable licensed subs for plumbing, electrical and HVAC work. We stand behind our work and the work of all of our subs. We do all aspects of Residential Remodeling; Basement, Garage, and Attic Conversions, Additional Dwelling Units. Kitchen and Bathroom Remodels. Basement foundation wall/floor sealing. Decks and Porches, exterior painting, and fences. Flooring, tile, built-ins, stairs, drywall, etc. We also do handy man repairs/jobs...all aspects of home maintenance and repair. We have been a partner in the City of Portland's FIR program (Field Issued Remodeling Permits) for over a decade. CCB LICENSE #: 173347. Call today 5039577559. Website- http://www.sundogconstruction.com
"Excellent! The Sundogs, crew of 3, did a marvelous job of changing my wet and moist basement into a beautiful apartment. Floor was removed and a subcontractor hired to replace the floor after complicated drainage system and sump pumps were installed. Due to the small crew and the complicated problems, it took longer to finish, but I have now a beautiful apartment in my basement. They are dear and honest people who work hard. Thank you Sundogs!"
Margriet H on December 2024
Thousands of NW homeowners have trusted TerraFirma Foundation Systems to keep their homes safe, dry and stable since 2005. Nearly half of our business comes from referrals or repeat customers. We can help you too! TerraFirma is the NW expert in home foundations, basement and crawl space waterproofing, concrete leveling, and wall stabilization.
"We needed some posts in our basement replaced with proper footings. TerraFirma was quick to respond and quick to do the work. We are very happy with the result and would recommend."
Nicole C on December 2024
Thousands of NW homeowners have trusted TerraFirma Foundation Systems to keep their homes safe, dry and stable since 2005. Nearly half of our business comes from referrals or repeat customers. We can help you too! TerraFirma is the NW expert in home foundations, basement and crawl space waterproofing, concrete leveling, and wall stabilization.
"We needed some posts in our basement replaced with proper footings. TerraFirma was quick to respond and quick to do the work. We are very happy with the result and would recommend."
Nicole C on December 2024
Our happy and satisfied customers recommend us to their friends and family all the time. We are proud of our reputation and we feel it has been well earned. We are also happy that we can help you feel good knowing that you are working with a reputable company that stands behind its products and services.
"I hired Secure Seismic to do a retrofit of my single story ranch built in the 1970s. Though I'm in the southern Willamette Valley and a ways from Portland, Daryl came down to give me a free estimate. Secure Seismic came in below their competitors and Daryl discusssd the plan with me in depth. Based upon the quality of the reviews, I hired Secure Seismic. They scheduled out within a couple of weeks. Johny the foreman kept me on the loop while they were at my house. They completed the job within a day and left the site clean. Pieces of drywall cut for access in the garage were thoughtfully replaced and will take little effort to clean up. Thanks for great work! I already sleep a little better knowing that my house will likely be okay when the big one hits."
Michael S on April 2024
Our happy and satisfied customers recommend us to their friends and family all the time. We are proud of our reputation and we feel it has been well earned. We are also happy that we can help you feel good knowing that you are working with a reputable company that stands behind its products and services.
"I hired Secure Seismic to do a retrofit of my single story ranch built in the 1970s. Though I'm in the southern Willamette Valley and a ways from Portland, Daryl came down to give me a free estimate. Secure Seismic came in below their competitors and Daryl discusssd the plan with me in depth. Based upon the quality of the reviews, I hired Secure Seismic. They scheduled out within a couple of weeks. Johny the foreman kept me on the loop while they were at my house. They completed the job within a day and left the site clean. Pieces of drywall cut for access in the garage were thoughtfully replaced and will take little effort to clean up. Thanks for great work! I already sleep a little better knowing that my house will likely be okay when the big one hits."
Michael S on April 2024
Residential remodel/repair and handyman service. Interior and exterior work. Basement remodel are our specialty. Work both by quote or hourly. 100% referral, word of mouth
"Where to start, I hired Jim at Evolution to do an exterior home remodel. This was three years ago. This included windows, siding, doors, roof, and gutters. Two jobs (the house roof and the gutters) were done by two other companies that he hired. The gutters are leaking and not doing their job at this point. They are not blocked nor do they have debris in them. The seams are failing. There are three spots currently. Also they put a downspout in the middle of the gutter and not on the end. So there’s issues associated with that. Jim was to do the siding, windows, screen doors, basement door, and carport roof. His costs were the best out of several contractors and he was recommended by a friend. We were drawn to another company but we decided to go with Evolution and Jim. So I mentioned the carport, we needed to redo it. I am a novice when it comes to building but I figured I could build the carport and have Jim roof it (originally it was going to be the other subcontracted roofers doing it). So I constructed, after doing research, the carport. Jim arrives and says it’s too flat and that it’s not safe to shingle it. so he says we could but corrugated plastic up in its place. I agree to that as I am assuming he knows what he’s talking about. He proceeds to do the job. The carport roof, the siding, the windows. I recently installed a patio with pavers right before he started his work here. I with my neighbors help did the work. My neighbor then installed a concrete border around the patio. At one point Jim and his crew rent a scissor lift and proceed to drive it (I think the sticker said 2500 pounds on the side of the machine) onto the patio to instal a window upstairs. They cracked the new concrete border and cracked about 10 pavers. They decided not to mention it to me, but I noticed it. I waited till the end of the day when Jim was sitting in his vehicle to leave and I approached him. He said they would fix it. Their fix was flipping the pavers over and not addressing the cracked concrete border. Disappointing but ok. So back to the carport which is my ultimate complaint. Jim completes all the projects including the plastic on the carport. Within days there are multiple leaks on the carport. Jim sends a helper out to put some caulk on it. The next day it’s leaking all along where the plastic meets the newly shingled roof. I contact Jim about the situation and he says “I’m washing my hands clean of this problem”. I plead with him to help address it and he sends me a email saying I screwed up the carport and that if an inspector saw it they would make me take it down. So I drop it. Over the next three years we are to the point of replacing the roof, yet the carport structure is solid. The plastic has shattered on the south side where it wasn’t connected properly, no flashing was installed so the water has damaged all of his supports causing them to warp, it leaks everywhere rendering the carport useless. Since Jim refused to address it I contacted another contractor to see what they could do. They came out and determined Jim botched the carport roof in several ways. No flashing, un proper cross beam placement, un proper overlap of plastic, un proper attachment to my structure. My structure was sound with no issues. So I reach out to Jim again about the issue and asked him repeatedly to come back out to see what was happening, in hopes he would fix it. It has been three years at this point. He doubled down with what he said before. Got upset that I asked another contractor to look at it (even though he refused too). He repeatedly asked me if I wanted him to come out. Which I reply with yes, over and over again. He never came. To be blunt he was incredibly rude. I’ll happily post what he wrote of the need arises. The bottom line to me is this. If I built the structure poorly (as he claimed… even though I think he wanted to initially do it but cost prevented it) why would you cover something that was built poorly. I would of said I can’t legally cover that structure or maybe even it’s built in a way that I can’t insure a leak free roof (again it was a matter of days I reported leaks to him). Secondly after I paid over 50,000 dollars to him, why wouldn’t you try to fix the roof just to be helpful especially since I contacted him within days. Thirdly why be a rude and condescending. Overall it was a huge let down. The new carport roof will cost about 3000. All his supports and the plastic top. The patio damage and the lack of care in fixing his issues he created. I would never recommend Jim or Evolution."
Rolf G on June 2023
Residential remodel/repair and handyman service. Interior and exterior work. Basement remodel are our specialty. Work both by quote or hourly. 100% referral, word of mouth
"Where to start, I hired Jim at Evolution to do an exterior home remodel. This was three years ago. This included windows, siding, doors, roof, and gutters. Two jobs (the house roof and the gutters) were done by two other companies that he hired. The gutters are leaking and not doing their job at this point. They are not blocked nor do they have debris in them. The seams are failing. There are three spots currently. Also they put a downspout in the middle of the gutter and not on the end. So there’s issues associated with that. Jim was to do the siding, windows, screen doors, basement door, and carport roof. His costs were the best out of several contractors and he was recommended by a friend. We were drawn to another company but we decided to go with Evolution and Jim. So I mentioned the carport, we needed to redo it. I am a novice when it comes to building but I figured I could build the carport and have Jim roof it (originally it was going to be the other subcontracted roofers doing it). So I constructed, after doing research, the carport. Jim arrives and says it’s too flat and that it’s not safe to shingle it. so he says we could but corrugated plastic up in its place. I agree to that as I am assuming he knows what he’s talking about. He proceeds to do the job. The carport roof, the siding, the windows. I recently installed a patio with pavers right before he started his work here. I with my neighbors help did the work. My neighbor then installed a concrete border around the patio. At one point Jim and his crew rent a scissor lift and proceed to drive it (I think the sticker said 2500 pounds on the side of the machine) onto the patio to instal a window upstairs. They cracked the new concrete border and cracked about 10 pavers. They decided not to mention it to me, but I noticed it. I waited till the end of the day when Jim was sitting in his vehicle to leave and I approached him. He said they would fix it. Their fix was flipping the pavers over and not addressing the cracked concrete border. Disappointing but ok. So back to the carport which is my ultimate complaint. Jim completes all the projects including the plastic on the carport. Within days there are multiple leaks on the carport. Jim sends a helper out to put some caulk on it. The next day it’s leaking all along where the plastic meets the newly shingled roof. I contact Jim about the situation and he says “I’m washing my hands clean of this problem”. I plead with him to help address it and he sends me a email saying I screwed up the carport and that if an inspector saw it they would make me take it down. So I drop it. Over the next three years we are to the point of replacing the roof, yet the carport structure is solid. The plastic has shattered on the south side where it wasn’t connected properly, no flashing was installed so the water has damaged all of his supports causing them to warp, it leaks everywhere rendering the carport useless. Since Jim refused to address it I contacted another contractor to see what they could do. They came out and determined Jim botched the carport roof in several ways. No flashing, un proper cross beam placement, un proper overlap of plastic, un proper attachment to my structure. My structure was sound with no issues. So I reach out to Jim again about the issue and asked him repeatedly to come back out to see what was happening, in hopes he would fix it. It has been three years at this point. He doubled down with what he said before. Got upset that I asked another contractor to look at it (even though he refused too). He repeatedly asked me if I wanted him to come out. Which I reply with yes, over and over again. He never came. To be blunt he was incredibly rude. I’ll happily post what he wrote of the need arises. The bottom line to me is this. If I built the structure poorly (as he claimed… even though I think he wanted to initially do it but cost prevented it) why would you cover something that was built poorly. I would of said I can’t legally cover that structure or maybe even it’s built in a way that I can’t insure a leak free roof (again it was a matter of days I reported leaks to him). Secondly after I paid over 50,000 dollars to him, why wouldn’t you try to fix the roof just to be helpful especially since I contacted him within days. Thirdly why be a rude and condescending. Overall it was a huge let down. The new carport roof will cost about 3000. All his supports and the plastic top. The patio damage and the lack of care in fixing his issues he created. I would never recommend Jim or Evolution."
Rolf G on June 2023
We make homes more secure, proving earthquake retrofitting services from start to finish. We visit your home, draw up plans, get them approved by the city, complete the work, and make sure that they pass inspection. We are licensed, bonded, and insured, Oregon CCB License #211369.
We make homes more secure, proving earthquake retrofitting services from start to finish. We visit your home, draw up plans, get them approved by the city, complete the work, and make sure that they pass inspection. We are licensed, bonded, and insured, Oregon CCB License #211369.
Dad's PDX offers a variety of services to our clients. We are there to take care of the jobs that you need done. We are at heart a Handy Man service.
Dad's PDX offers a variety of services to our clients. We are there to take care of the jobs that you need done. We are at heart a Handy Man service.
GNC Construction has a combined total of 40 plus years of experience. We specialize in residential and commercial building. Our staff is experienced in many different trades and we take pride in our craftsmanship and detail. With backgrounds in drywall, steel and wood framing GNC Construction has expanded out to numerous trades. We are certified in steel work, siding, all building trades, painting, plumbing, electrical.
GNC Construction has a combined total of 40 plus years of experience. We specialize in residential and commercial building. Our staff is experienced in many different trades and we take pride in our craftsmanship and detail. With backgrounds in drywall, steel and wood framing GNC Construction has expanded out to numerous trades. We are certified in steel work, siding, all building trades, painting, plumbing, electrical.
Bacharach Construction LLC is a licensed, bonded and insured General Contractor. Major projects include new construction, remodeling, etc.
"We had a series of problems but the final straw is the brand new front door to our studio hanging off the hinges after less than a year and the owner will not stand behind his work. We have opened a complaint with the BBB and we had to hire another contractor of Angi to fix their incompetent hung door installation."
William S on December 2022
Bacharach Construction LLC is a licensed, bonded and insured General Contractor. Major projects include new construction, remodeling, etc.
"We had a series of problems but the final straw is the brand new front door to our studio hanging off the hinges after less than a year and the owner will not stand behind his work. We have opened a complaint with the BBB and we had to hire another contractor of Angi to fix their incompetent hung door installation."
William S on December 2022
Primary service is the re-leveling of Mobile Homes and the repair and refurbishing of Mobile Home foundations. Since Angies list doesn't offer this business category as an option I had to list other categories that got close.
Primary service is the re-leveling of Mobile Homes and the repair and refurbishing of Mobile Home foundations. Since Angies list doesn't offer this business category as an option I had to list other categories that got close.
Most earthquake retrofitting jobs take one week to 10 business days to complete. However, your professional retrofitting expert will be able to give you a more accurate timeline for your home once you complete an initial consultation. The total time may be longer for projects requiring more extensive work or homes with structural damage due to a prior earthquake.
You can expect to pay between $3,370 and $8,610 in earthquake retrofit costs, ranging from $500 to $15,000 or more, depending on your type of home and foundation and retrofitting method.
If you have a slab foundation, you can expect to pay on the lower end, between $500 and $3,000. If you have a wooden foundation, that cost jumps to $5,000 to $10,000. A hillside home, not as vulnerable to earthquake damage, typically costs between $5,000 to $10,000 to retrofit while a soft-story home ranges from $10,000 to $80,000.
It is not advisable to try to retrofit your home without the expertise of a professional. These projects usually require a consultation with a structural engineer and a plumber for any gas-related adjustments. Working with a professional earthquake retrofitting contractor is the best way to ensure that any structural work done to your home will help protect you and your family.
First, you can expect the project to be loud. If you have pets, you might want to take them to a friend's house during the day so they are not disturbed by any of the loud noises. In addition, you’ll need to provide the retrofit team access to areas of the house that will need to be worked on, meaning you’ll need to relocate personal items, clear clutter, and make pathways for the crew. Once the project is complete, a local building inspector will conduct a final inspection to ensure that the retrofitting is up to code.
Earthquake retrofitting can increase your home value, making it a great return on investment. This feature is especially valuable in areas prone to earthquakes. Besides the increased safety value (not only for your family but for the next family who moves in), earthquake retrofitting also helps lower homeowners insurance rates. In addition, having your home earthquake retrofitted can make it easier to get a home loan since they are considered lower risk.