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    Allison Concrete Construction

    3.9 (16 reviews)
    Closed 7:00 am - 5:30 pm

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    Patio
    Don M.

    We needed a patio equal to ground level in our backyard so our special needs daughter could walk safely. They built it perfectly and we're easy to work with.

    Sergio created a beautiful step-down backyard patio space for us that we can't wait to use this summer. He's very responsive, and went the extra mile helping us with the details and taking care of things that came up during the process to make sure we were happy with the finished product. Both him and his team were easy to work with, and I'll definitely use Allison for future projects.

    In their website they state that they do residencial jobs. Very disappointed of this company.

    This what they sent me after a estimate request. I attached a picture of a patio for the estimate.

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    2 years ago

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    Sergio L.

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    3 years ago

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    Sergio L.

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    2 years ago

    Nice work. Pics up phone. He did what he said he was going to do at a fair price.

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    4 years ago

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    Sergio L.

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    2 years ago

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    4 years ago

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    Sergio L.

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    6 years ago

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    Sergio L.

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    5 years ago

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    Sergio L.

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    6 years ago

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    Sergio L.

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    4 years ago

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    Sergio L.

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    6 years ago

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    Sergio L.

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    5 years ago

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    Sergio L.

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    6 years ago

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    Sergio L.

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    13 years ago

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    Sergio L.

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    8 years ago

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    Sergio L.

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    10 years ago

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    Sergio L.

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    Review Highlights - Allison Concrete Construction

    We received Sergio's extremely reasonable bid within 48 hours and quickly hired him to get the job done.

    Mentioned in 11 reviews

    Read more highlights

    Neno And Son Sealcoating And Asphalt - Weeds growing through repair a month later

    Neno And Son Sealcoating And Asphalt

    (4 reviews)

    Neno and Son Seal Coating and Asphalt were going door to door in my neighborhood. I agreed to have…read morethem power wash, crack fill, gator patch and reseal my driveway. I called 3 references and talked to two, including the church mentioned in another review. All said their work was satisfactory. This business does not have an Oregon CCB license. When I asked about that I was told by Jacob that they were working on it. That should have been my first red flag. The price they quoted seemed reasonable based on a previous quote I had been given a few years before. When they came the next day they did a good job of power washing, although we had to expressly ask them to clean up the dirty overspray mess they made of our back porch. Neno made a lot of promises about how he would come back if there was something we were not satisfied with and they even wrote on the invoice that they were giving a 3 year warranty. At the time I questioned why the cracks didn't really look like they had been filled. They told me to wait until it dried and it would plump up. The next day I sent them a few pictures of areas that hadn't been sealcoated at all. I have given up on expecting the cracks to have been filled. They responded once saying they would call me when they finished the current job they were on. I never heard back from them. A few days later I called from a different phone and Neno answered. I explained that I was trying to reach them to have them sealcoat the areas they had missed. He set up an appointment for 11:00 am the next day. They never showed. I am sure their 3 year warranty isn't worth the paper it is printed on. In general, their work was substandard and their business practices were dishonest. I hope this review will save someone else from making the mistake of hiring Neno and Son Sealcoating and Asphalt 1738 SE 32nd Ave Hillsboro, OR 97123 Business Phone= 971-440-7682

    Terrible. Then he ghosts you. Seal coating either spread too thin or has been diluted. After one…read moremonth, coating has literally washed away.

    TerraFirma - Foundation repair in Portland, Oregon with EverBrace before and after photos.

    TerraFirma

    (118 reviews)

    Our house is built in the SW hills of Portland originally in 1938, with a 2003 addition. TerraFirma…read morewaterproofing product has been a significant update to a shoddy home remodel that the January ice storm exposed. After this unexpected remodel and damage was exposed we had a delay of several months to get on their schedule. When the project date arrived, they showed up on time, cleaned well after the demolition/addition of interior floors to allow drainage and a sump-pump. My original review (4 star due to not adjusting the cost when less product was used) they owned the mistake and recognized their communication gaps. I do appreciate that attention and feel more confident in the company. I look forward to many years of DRY basement/master bedroom living.

    Living in a 30-year-old home for the past two decades we've had several phases of upgrades, but one…read morething has always been absent from a 10x10 slab on our back porch: a hot tub. So, this summer, we decided to move forward with the plan to be "soakin' for the holidays" three months away. The only thing standing in the way of that dream: the slab and its neighbor had sunk a few extra degrees, roughly three inches, at the far edge. We were going to need to shore up and permanently stabilize this slab if our hopes of the (3-ton when filled) tub were going to materialize. I made a quick call to Terra Firma and they had an estimator out within a few days. The pricing was reasonable and had the standard 50% up front 50% when complete-type contract. Casey arrived spot-on at 8:00am yesterday morning and began doing his magic (the process involves boring 1/2" holes through the slab, then using high pressure and heat to inject a molten expanding foam under the slab.) The foam is rated to support about 5 tons (10,000 pounds) per pound of foam material, and....100 pounds later that whole slab is back to following the prescribed slope perfectly, raising almost three inches on the sunken side. He did a great job and was a great rep for the company, explaining what little was left to explain. He kept me up on the status of the (4-hour) job as he went along--because our slabs had previously cracked, he had to gently lift it up in small sections so as to not have the sections separate further. Perfect job. 24 hours later and the patched holes have dried to almost-invisible (see photos). Unless you know what you're looking for, you can't even really see that repairs were made. Now I just need to fill in the pre-existing cracks with concrete patching caulk and we're ready to schedule the hot tub delivery! Yippee! Thanks Terra Firma!

    Allison Concrete Construction - masonry_concrete - Updated June 2026

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