503 Builders LLC

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About

I have always had a passion for construction, design and increasing home values. From my personal bad experiences with sub par contractors that take on too many jobs or has a sloppy finish, I figured our team can do better than the industry "standard". Being Japanese in this industry, we focus on laser like precision and take pride in our finish carpentry. Fast, Good, Affordable, you get to pick all three.

Overview

Hired 54 times

Serves Troutdale, OR

Background checked

License verified

5 employees

5 years in business

Business hours

This pro hasn't listed their business hours.

Payment methods

This pro accepts payments via Cash, Check, Credit card, PayPal, and Venmo.

Social media

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Services offered

Install type

Property type

Residential

Commercial

Projects and media

173 photos

Projects and media

173 photos

Reviews

Customers rated this pro highly for work quality, responsiveness, and professionalism.

Exceptional 5.0

45 reviews

5

98%

4

2%

3

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Read reviews that mention:

Jacob h.

2 weeks ago

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Hired on Thumbtack

I had a small leak in my bathroom that caused some water damage to the floor trim, and this team handled everything quickly and professionally. They identified the problem right away, repaired the leak, and replaced the damaged trim so it looks brand new. The communication was great, they showed up when they said they would, and the quality of their work was top-notch. It’s such a relief to have the issue fully resolved and the space looking even better than before. I’d absolutely hire them again for any future home projects!

Details: Fix bathroom tiles or flooring • Fix water damage • Full bath • Home

Bathroom Remodel

Diane Z.

Jun 20, 2025

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Hired on Thumbtack

Details: I'm just starting • Kitchen • Living room • Bedroom • Bathroom • Dining or family room • Garage • Crawl space or attic • Replace parts of existing structure • Repair existing structure • 500 - 1,000 sq ft • Home

General Contracting

Josh S.

Sep 23, 2025

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Hired on Thumbtack

Kohei’s team did a great job. Attention to detail was on point throughout. They removed an old concrete patio and built a new deck with a finished awning. It looks amazing. They also built an extremely well-built fence on the backside of the yard. Kohei was great at communicating throughout any weather delays or other issues. Highly recommended. We will return as customers

Details: New deck or porch construction • No existing plans, but I know what I want • Residential

Deck or Porch Remodel or Addition

Chrissy T.

Aug 25, 2025

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Hired on Thumbtack

We needed a contractor to help us with a complete renovation down to the studs (in some of the rooms), new roof, windows, plumbing, electrical, paint, etc. Not only that, but we needed someone to help us with a complex renovation loan process with HUD. Kohei and his team were easy to work either way and also added valuable collaboration and ideas. He was there to save the day several times when we ran into unforeseen gotchas! Renovations can be stressful, but Kohei and his team were always a part of the solution and I always felt they had us! We will be using them again! Just need to find the next house that needs love 😜

Details: Sketches or a basic idea • Kitchen • Living room • Bedroom • Bathroom • Dining or family room • Garage • Whole home or building • Replace parts of existing structure • No load-bearing structures involved • More than 2,000 sq ft • Home

General Contracting

Angela m.

Aug 18, 2025

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Hired on Thumbtack

Kohei and his teams of contractors did a fantastic job on building the patio I’ve always dreamed about. Starting with a retaining wall and then the lanai with skylights and build in recessed lighting. I am very happy with the results and look forward to working with them on my next project.

Details: Complete renovation like replacing soil or hardscape services • Trim trees or shrubs • Patio • Back yard • I'm flexible • Home

Outdoor Landscaping and Design

Credentials

License

License type: Contractor – Residential General

License state: OR

License verified on 10/18/2025

Background Check

Kohei Takazawa