Approved Pro
TerraFirma Foundation Systems
Foundation Repair, Basement Waterproofing, Concrete Leveling,
About us
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.
Business highlights
Family owned & operated
20 years of experience
Services we offer
Foundation Repair, Basement Waterproofing, Crawl Space Encapsulation, Earthquake Retrofitting, Concrete Leveling
Services we don't offer
New Foundation Pour, Mobile Home Foundations, Insulation, Exterior Water Remediation, Tree Root Removal
Amenities
Eco Friendly Accreditations
Yes
Free Estimates
Yes
Warranties
Yes
Accepted Payment Methods
- American Express
- Financing Available
- Check
- Visa
- Discover
- MasterCard
Our recent projects
- 15
Assorted photos uploaded by TerraFirma Foundation Systems
Reviews
4.7164 Reviews
| Number of Stars | Image of Distribution | Number of Ratings |
|---|---|---|
| 85% | ||
| 9% | ||
| 3% | ||
| 2% | ||
| 2% |
Filter reviews by service
Showing 1-25 of 164 reviews
Chuck G.
Nov 2024
Foundation Repair
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.
Response from TerraFirma Foundation Systems
"[Member Name Removed]--we received your review and immediately reached out directly to better understand where we'd missed the mark or where there was any miscommunication. I believe you've spoken with our team and since this review and resolved the issue. We hope that if we didn't meet your expectations originally, our response to your review has improved your experience."
Gerald J.
Jul 2024
Earthquake Retrofitting
Before any work could be done, the entire duct system had to be removed. TerraFirma worked seamlessly with my HVAC contractor. There were no issues with the duct system installation after the retrofit and encapsulation.
Response from TerraFirma Foundation Systems
"Thank you for the review, [Member Name Removed]! We appreciate it!"
Traci H.
Aug 2023
Foundation Repair
I recently hired TerraFirma to raise my house several inches and level out my basement floor. Working with TerraFirma Foundations was a great experience, from start to finish. Everyone involved in the project was very friendly and professional. I was kept in the loop, as to what was happening, every step of the way. I would definitely recommend this group to anyone needing help with their foundation.
Response from TerraFirma Foundation Systems
"Thank you so much for the positive review! We appreciate it and love to hear this!"
Mike H.
Oct 2022
Concrete Repair
This is an update to my prior review. I'm unable to remove my prior review on 8/18/2022. At first I was not very happy with the last minute cancellation of the job after I had waited almost 2 months. I'm pleased to say that they came out to take another look at the job and we discussed their concerns. We came to a solution to wait for cooler days and test a few low risk areas with a different type of foam before deciding if we should attempt areas. When the team arrived to do the job they were very professional, methodical, and did a fantastic job on the whole project. I could not be more pleased with the results. Please know that despite my earlier impression I've come to know this local team as one that is willing work through challenges and genuinely seek 100% customer satisfaction. They can add me to their list as a very happy customer that will recommend them to others.
Response from TerraFirma Foundation Systems
"Thank you so much for both of your reviews, [Member Name Removed]. We appreciate the feedback and the opportunity to get this right for you!"
Karen E.
Sep 2022
Foundation Repair, Concrete Leveling + 1 more
They did a good job, and cleaned up. Still a messy project, but they did well and were very professional and answered all our questions.
Response from TerraFirma Foundation Systems
"Thank you for this review and rating!"
Carlos C.
Feb 2021
Radon Reduction, Radon Detection
They were very clean. They did the job and they were quick. They did what they said they gonna do.
Response from TerraFirma Foundation Systems
"Thank you for sharing your experience with us, [Member Name Removed]! We appreciate you!"
Gary L.
Jan 2021
Earthquake Retrofitting
Excellent to work with! They arrived on schedule and completed the work on schedule and on budget, even though they had to adjust their work to compensate for the lack of room in the crawl space. They are not cheap, but they did the job very well.
Response from TerraFirma Foundation Systems
"[Member Name Removed], thank you for the A rating! We are happy to have had the chance to work with you!"
Jill H.
Jan 2021
Concrete Repair
The work took 6 months when I was told it would take 2 weeks, some of the workers were downright intimidating, and they destroyed my newly paved driveway with saw cuts (although they did credit me for it). All in all it was a horrible experience that I'd never want to go through again. There are few companies in the area that do this sort of work and I recommend having an attorney on your side reviewing any contracts if you hire them.
Response from TerraFirma Foundation Systems
"[Member Name Removed], thank you for taking the time to provide this feedback. We are sorry that your experience didn't meet your expectations or our standards. We will use this information as a learning and training experience for our teams. With only your first name and last initial visible in this review, we have limited information to be able to take action. If you're willing, we'd like to discuss this further with you. If so, please email [email protected] with your contact information as we take seriously our commitment to your customer experience. Tracy"
Greg S.
Jan 2021
Concrete Repair
I had a crawlspace where I wanted a slab poured. Terra Firma was professional, clear and helpful. The got the job done as bid. I would hire them again.
Response from TerraFirma Foundation Systems
"[Member Name Removed], thank you so much for your positive feedback. We appreciate you and your business!"
Mary D.
Jan 2021
Foundation Repair, Concrete Repair
Very professional. Great problem solvers. Amazing crew.
Response from TerraFirma Foundation Systems
"[Member Name Removed], thank you for taking the time to write us a review. It was a pleasure to work with you, and we are thrilled that you enjoyed your experience with our crew."
Devon P.
Nov 2020
Foundation Repair, Basement Waterproofing
I had contacted TerraFirma for a quote to repair a foundation crack, after seeing such positive reviews of their work on Angie's List. The rep came out to evaluate the repair then proceeded to tell me that not only was there the foundation crack, but that the main wall of my home was "just hanging", with no support underneath. That there was so much moisture / water under the house, that the roots from the maple trees along our fence line were running under my home because there was all the water they needed right there. After telling me that the back 1/3 of my home was nearly an inch below the level of the front of the house, they said that the fireplace was separating from the side of the house and needed shored up. When all was said & done, the proposal they sent to me to "keep crawlspace dry / mold-free, stabilize floors & foundation", for a grand total of over $52,000. Luckily, I had 3 other companies come out to give bids, with the highest being $2,000, which was right where I thought it would cost for one foundation crack. The home is 30 yrs old, but I had it verified that it is very sound, that there is NO problem with my fireplace / chimney and the main wall is most certainly not hanging w/o support underneath. I would most assuredly NEVER use TerraFirma's services ever and I am so very happy that I had two highly regarded companies still to choose from, that were able to provide proof that my home is as sound as I had thought it to be and to put my mind at ease.
Jack S.
Oct 2020
Concrete Leveling, Concrete Repair
Very well.
Response from TerraFirma Foundation Systems
"Thank you for the positive feedback, [Member Name Removed]! We appreciate you and your business!"
Kamran A.
Jun 2020
Basement Waterproofing, Insulation
Very well it was very hard job in the wintertime
Response from TerraFirma Foundation Systems
"Hi [Member Name Removed]! Thank you for taking the time to write us a review. We are thrilled to hear that you had an incredible experience with our team."
Michael S.
Jun 2020
Concrete Leveling
Austin come out to give us an estimate. He responded quickly and was punctual. We did not accept the bid because I felt it was very high. I completed the work myself using a different technique.
Response from TerraFirma Foundation Systems
"Thank you for taking the time to review us! We appreciate the feedback and opportunity to serve you."
Gary L.
Apr 2020
Earthquake Retrofitting
Crew arrived on time. Very professional; explained what they were doing. Had to revise the project due to crawl space issues, which required them to cut notches out of the bottom lap of our siding to install their plates. They sent a carpenter the next day to glue the notches back in place.
Response from TerraFirma Foundation Systems
"Thank you for the kind words, [Member Name Removed]! We will share your note with the crew. Thank you for trusting TerraFirma with your home project---If we can ever be of service again, we're here!"
Janet S.
Feb 2020
Foundation Repair
It was good. They are very responsive, very good, its just that it cost $50,000 worth of work.
Marc E.
Jul 2019
Foundation Repair
Chad was extremely knowledgeable and created a detailed plan based on his extensive evaluation. He took the time to answer all of my questions and I came away very confident in his assessment. All my interactions with TerraFirma were professional and I highly recommend them.
Response from TerraFirma Foundation Systems
"Hi [Member Name Removed]! Thank you so much for taking the time to write us a kind review! We are so happy to hear that you had such a great experience with Chad and the rest of our team! We will be sure to pass on your kind words to the crew!"
James P.
Apr 2019
Basement Waterproofing, Concrete Leveling
Two jobs completed at separate times; three days altogether for both. TerraFirma quickly completed both jobs and the basement environment is significantly improved. We immediately noticed a difference in the air quality in the basement. The crawl space looks great and is now a clean environment. The concrete patio is now even and water no longer flows towards the house foundation. Issues : Crawlspace - 1. The invoice I was presented at the completion of the job was $900 more than the agreed upon price. After an hour, and me needing to make several phone calls, the situation was resolved. 2. The dehumidifier was not placed in the designated position described by the salesperson and noted in the plans. The dehumidifier was to be placed in an open spot in our basement adjacent to our utility sink. The foreman on the day of installation said that was not standard, pointed out how it was not possible to place it in the basement and installed it in the crawl space. The foreman and I tried to contact the salesperson for clarification but we were not able to get ahold of him. The foreman said this was typical. The salesperson did call me back at the end of the day but by then decisions had been made and work completed. 3. The dehumidifier was placed in such a way that the programming screen is not visible from the crawl space opening. If the unit throws a code there is no way to tell other than entering the crawlspace. 4. The salesperson said we would be provided with “decorative screens” to cover the crawlspace openings in the basement. What we received was wire mesh glued on to the cement walls. 5. We needed to make further arrangements with an electrician to accommodate the unplanned crawlspace placement of the dehumidifier. Patio polylevel – One of the two-man service crew brought his family (friends?) onto my property and worksite without consulting me and entertained them in my backyard for about a half an hour, mid-afternoon. Besides being a serious liability issue, I have to say that it is one of the oddest things I’ve ever seen a service person do; and I’ve seen some odd stuff.
Response from TerraFirma Foundation Systems
"We want to help relieve your concerns and make your experience with us exceptional. Your Customer Experience Advocate, Pua Wilmes has been trying to contact you the last few weeks to schedule a time for us to go back out to your home and improve our work to your liking, free of charge. At your earliest convenience, please feel free to reach back out to us with the contact info we've provided you."
Mark B.
Nov 2018
Foundation Repair
Went well, on time and personable well dressed staff.
Daniel M.
Oct 2018
Foundation Repair
The sales rep was super professional, courteous, punctual, and knowledgeable. His advice was very practical. I could tell his main concern was doing what was best for our needs, not simply doing what he could to make a sale. We feel very comfortable with his recommendations and look forward to working with them in the future. I highly recommend this company!
Response from TerraFirma Foundation Systems
"Thank you, [Member Name Removed]! We're so happy to have your strong reccomendation! Let us know if you need anything else from us."
Pat M.
Oct 2018
Foundation Repair, Concrete Leveling
Job done well.
Response from TerraFirma Foundation Systems
"Thank you for your review! Let us know if you need anything else from us."
Phillip H.
Sep 2018
Foundation Repair, Basement Waterproofing
It went well. They gave us a work schedule and communicated with us if there would be any time changes or any other concerns. They were not only timely but tidy about their work. They also were available to address any of our concerns.
Response from TerraFirma Foundation Systems
"Thank you for your great reccomendation! If there's anything else you need from us, please don't hesitate to reach out!"
Debi B.
Aug 2018
Foundation Repair, Water or Storm Damage Restoration + 2 more
They got right back to me to tell me this service is not what they do and gave me contacts of three other firms that would/could help.
Response from TerraFirma Foundation Systems
"We're sorry that we weren't able to help you with your home, but we're happy that we were able to reccomend someone to you! We wish you the best!"
Alicia H.
Apr 2018
Foundation Repair, Basement Waterproofing + 1 more
I used TerraFirma to install a sump pump in my leaking basement. The team that worked on installation were great to work with. I was very pleased with the quality of work, the communication throughout the process, and their respect for my home.
Response from TerraFirma Foundation Systems
"Thank you for your review, [Member Name Removed]! I'll be sure to let the crew that worked on your home know that you were extremely satisfied with their job."
Alicia H.
Apr 2018
Foundation Repair, Basement Waterproofing + 1 more
I used TerraFirma to install a sump pump in my leaking basement. The team that worked on installation were great to work with. I was very pleased with the quality of work, the communication throughout the process, and their respect for my home.
Response from TerraFirma Foundation Systems
"Thank you for your review, [Member Name Removed]! I'll be sure to let the crew that worked on your home know that you were extremely satisfied with their job."
Licensing
Bonded
Insured
Licensed*
Trade License Number
TERRAFR931LH
Trade License Locale
Washington
Trade License Authority
Washington: Contractors
Trade License Expiration
06/16/2027
State Contractor License Requirements
All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.
*Contact business to see additional licenses.
FAQ
TerraFirma Foundation Systems is currently rated 4.7 overall out of 5.
Monday: 8:00 AM - 5:00 PM
Tuesday: 8:00 AM - 5:00 PM
Wednesday: 8:00 AM - 5:00 PM
Thursday: 8:00 AM - 5:00 PM
Friday: 8:00 AM - 5:00 PM
Saturday: Closed
Sunday: Closed
TerraFirma Foundation Systems accepts the following forms of payment: American Express, Financing Available, Check, Visa, Discover, MasterCard
Yes, TerraFirma Foundation Systems offers free project estimates.
Yes, TerraFirma Foundation Systems offers eco-friendly accreditations.
No, TerraFirma Foundation Systems does not offer a senior discount.
No, TerraFirma Foundation Systems does not offer emergency services.
Yes, TerraFirma Foundation Systems offers warranties.
TerraFirma Foundation Systems offers the following services: Foundation Repair, Basement Waterproofing, Crawl Space Encapsulation, Earthquake Retrofitting, Concrete Leveling
New Foundation Pour, Mobile Home Foundations, Insulation, Exterior Water Remediation, Tree Root Removal