We Cover 60 Miles around King County, WA
We Have 10 Years of Experience
Location
1718 Kirkland Ave NE,
Renton, Washington, 98056
Opening
Mon - Sat: 8:00 am to 5:00 pm
1718 Kirkland Ave NE,
Renton, Washington, 98056
Mon - Sat: 8:00 am to 5:00 pm
LARRY W STANLEY in Renton - 5.0
Date: 2026-09-04
Project: Roof Replacement
Margarito and his crew are extremely hard working, professional, reliable and friendly. They did and excellent job and finished in the timeline quoted. We had them also replace our gutters, fascia boards that needed replacement (and painted) and other architectural features that had weathered. Fair priced as we had several estimates. If ever we need repair work done on our home, inside or outside, we will not hesitate to contact Bertha Construction and skip getting other estimates. They are that good!
Tiana Dema in Renton - 5.0
Date: 2026-05-02
Project: Master Bathroom
Margarito and his crew made my bathroom dreams come true! They did fast and quality work. I will definitely be using them for our next project.
Eileen Cree in Snoqualmie - 5.0
Date: 2025-07-31
Project: New paint and flooring
Margarito, from Bertha Construction was fabulous! We own a small rental property in downtown Snoqualmie that was in desperate need of a cleanup. Our previous tenant left the place in ruins!! The odor from his pets using the carpet as a potty pad was beyond horrible. Bertha construction was recommended to me for painting along with installing new flooring. I couldn’t be happier with the results… the place has never looked better! Margarito was professional, provided great communication, the project was reasonably priced and finished on time. I can’t thank him and his crew enough for the excellent work!
Brian Tuft in North Bend - 5.0
Date: 2025-05-02
Project: Siding and soffits
When one finds a great reliable, honest contractor you hestitate to tell anybody because you want them to be available for your next project. Margarito and his team at Bertha are the one you've been looking for. Not the cheapest, not the most expensive but fair prices for excellent work. And they can do almost any construction project that you may need. Hard to find this kind of contractor. Please don't hog him!
Eve in Seattle - 5.0
Date: 2024-12-30
Project: Roofing, drywall, painting, consultation
Margarito’s team does a great job for good prices and is reliable, friendly, and committed to their good work. We have had him back many times and will call him first for anything.
Laura P in Seattle - 5.0
Date: 2024-10-27
Project: Home upgrades and repairs
Wow, it is hard to find enough praise for Margarito and his crew (gracias Adrian y Victor). They helped repair and upgrade our house inside and out, before sale (just sold it fast and for a great price). Their work ethic and work quality was superb on every level, and affordable too! AND, they are lovely people of the highest integrity; it was a true pleasure to have Margarito and his crew around. It's easy to say I am definitely a client for life!
Adler Rodrigues in Edmonds - 5.0
Date: 2024-05-29
Project: ADU construction
Margarito and his crew did a superb job in completing the construction on our ADU. I plan on having his company remodel our entire house in the next few months if his business slows down. Great quality of work and attention to detail. Margarito and his crew are atypical construction folks in that they are very personable and did not once deny my request in terms of work around the house. Bravo Margarito!! Muchas Gracias!
Karen T in Seattle - 5.0
Date: 2024-03-11
Project: Condo
Margarito and crew did an outstanding job with updates to my condo, from installing appliances, to plumbing upgrades and even some minor fix-its that I couldn't manage myself. Good work done in a timely fashion, and at a reasonable rate. Highly recommend!
Skip Johanson in Seattle - 5.0
Date: 2024-01-29
Project: Water damage repair
I was very, very impressed by the quality of work and attention to detail. Could not be happier with everything. They were prompt, thorough and were at the job site everyday until complete.
Judy and Marty Ridgway in Everett and Sultan - 5.0
Date: 2023-04-22
Project: Master show remodel and backyard landscaping
Margarito and his crew are hard working, humble, and a group of gentlemen of immense integrity. His work is not only top notch quality, his prices are reasonable for the outstanding work you get in return. We are completely satisfied with the finished products and will only have Margarito and his crew work on our projects. He is superb at his craftsmanship and the nicest person to top it off. We are so happy to have him as our contractor. Thank you Margarito!!!