Get matched with top yard drainage pros in Portland, OR

"My decision to select G.M.G was based to some degree on their 5.0 star reviews- I can confidently recommend them- they live up to every one of these 5.0 star reviews- Gelacio and his partner delivered on their promises, worked efficiently and when the sprinkler issues turned into much more than we anticpated they got it done and the invoice still matched their estimate. Highly recommended and I have another project lined up for them. Thank you G.M.G!"

"Fantastic communication from start to finish. They helped guide the whole project with a pragmatic and cost efficient focus on our requirements. I will hire them again for any future landscaping projects."

"I couldn’t be happier with the service! The team came out to clean up my backyard and did an amazing job. They were fast, efficient, and paid attention to every detail. I especially love that they use organic methods, which makes me feel great about the safety of my garden and the environment. My backyard looks better than it has in years—clean, fresh, and ready to enjoy. Highly recommend this company to anyone looking for reliable and professional garden maintenance! 🌱🌿 Thank you Saudel and the rest of the team!"

"He was very up front and work was done well I have also had new lawn and sprinklers put in"

"Very responsive to changes. Only issue is lack of same day response to text messages or emails"

"These guys blew us away, far exceeding our expectations. They care about the quality of their work and are nice people. What a pleasure to find a service like this that pays attention to detail. Highly recommend."

"Daniel and his Father are both very knowledgeable about lawns. They have done an excellent job with our lawn and installed a new sprinkler system box. I would recommend them to anyone needing lawn maintenance. "

"They were great. They had a great communication. They exceeded our expectations."

"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."

"Israel and his team were great to work with and I am really happy with both of the projects they competed for me. They replaced an old, failing retaining wall with a beautiful stone retaining wall with a French drain behind it. I showed Israel pictures of what I wanted it to look like and his team did an amazing job making my vision a reality. They were careful with my existing plants and landscaping and went above and beyond by moving and repotting a shrub that I was unable to move by myself before the work began. They also replaced parts of my backyard that had been removed by neighbors and built a beautiful new fence and gate out of cedar. They did an amazing job matching the style of the existing fence and my yard looks so much better now. I am so happy with everything and I would work with GI Landscaping again anytime!"