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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

Current Top Pro

Hired 60 times

Serves Troutdale, OR

Background checked

License verified

5 employees

6 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

Instagram

Top Pro status

Top Pros are among the highest-rated, most popular professionals on Thumbtack.

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2025

Services offered
Softscaping
Work needed

Smaller landscape changes

Larger landscape changes

Complete renovation

Hardscaping

Retaining wall

Artificial turf

Driveway

Boulders or stones

Projects and media
Projects and media
Reviews

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

Excellent 4.9

51 reviews

5

96%

4

2%

3

0%

2

0%

1

2%

Read reviews that mention:


pro avatar
Diane Z.

Jun 20, 2025

Hired on Thumbtack

Kohei did indoor and outdoor work on a rental property of ours. Replacing exterior doors; draining the rainwater from the roof to a french drain; interior painting and redoing hardwood floors; plus several smaller projects in the kitchen and bathroom. He was excellent to work with! Great communication, good team, on time and work done well. He won't be your cheapest bid, but you'll get his full attention and a job well done. I highly recommend!

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
pro avatar
Samuel S.

Apr 15, 2025

Hired on Thumbtack

503 Builders LLC did an incredible job redoing my backyard. They were professional, efficient, and brought my vision to life with great attention to detail. The quality of work was top-notch, and the crew was respectful and clean. I couldn’t be happier with the results, I highly recommend them for any outdoor project

Details: Complete renovation like replacing soil or hardscape services • Lay grass or sod • Lay artificial turf • Plant trees or shrubs • Remove trees or shrubs • Apply mulch • Artificial turf • Back yard • Side yard • No, one-time project • Home

Outdoor Landscaping and Design
pro avatar
Terren W.

Feb 19, 2025

Hired on Thumbtack

We worked with 503 on three medium sized projects over the span of four months and are pleased with the end results. Our primary project was our main bathroom and the bid Kohei gave was more than fair given the amount of custom work we wanted. Kohei was a great thought partner, accommodating to complex design requirements, and responsive when challenges arose. In this price range, half of the day-to-day project management fell on us but we didn’t mind since we prefer to be involved. With gratitude, his crew is easy to work with and welcomed feedback throughout the process to ensure things are exact and that we’re happy. Since completion, we’ve had guests who were blown away by our new bathroom.

Details: Full remodel of bathroom • Update style

Bathroom Remodel
pro avatar
Amanda G.

4 weeks ago

Hired on Thumbtack

10/10 would recommend. Kohei and his team did an amazing job! Top quality, very professional, responsive, and helpful. I'm very detailed and picky, and this is perfect. If you're considering a remodel, Kohei is your guy.

Details: Sketches or a basic idea • Bathroom • Crawl space or attic • Complete renovation • New custom construction • No load-bearing structures involved • Less than 500 sq ft • Home

General Contracting
pro avatar
Richard S.

Dec 4, 2025

Hired on Thumbtack

Details: I'm just starting • Addition • Replace parts of existing structure • Repair existing structure • Yes, load-bearing structures are involved • Less than 500 sq ft • Home

General Contracting
Credentials
License

License type: Contractor – Residential General

License state: OR

License verified on 10/18/2025

Background Check

Kohei Takazawa

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