1. No results to show.

certafix

Top Pro

Licensed
Licensed
This pro is currently not available for Sink or Faucet Installation or Replacement
This pro is currently not available for Sink or Faucet Installation or Replacement

We know others who are. Tell us about your job and we’ll help you find the right pro.

We know others who are. Tell us about your job and we’ll help you find the right pro.

About
Certafix provides a range of repair, maintenance, and improvement services for homes and businesses, tackling tasks like plumbing, electrical work, carpentry, painting, and installations, focuses on smaller projects and quick solutions. We know that Certafix is being licensed, bonded, insured, has background-checked and trained technicians, highly customer rated and competitively priced (as we are listed on the most competitive app markets) would only make us one of the better choices in Thumbtack, but you know what - the SURVEY SAYS what really customers want is ultimately just their peace of mind for making the issue go away and not back-firing again in a foreseeable future - so this is where Certafix differentiates from the crowd. Our Warranty: "All Works We've Done, Including All Materials We Supplied Comes to You with 1-Year Full Warranty. If the job is not done right, we promise to make it right within 3 days. We stand behind our workmanship with both feet in for you until this day next year." Our services: General Repairs: Fixing leaky faucets, repairing holes in walls, replacing broken fence/gates. Plumbing: Minor plumbing repairs, faucet and sink repairs, and water leak repairs. Electrical: Installing light fixtures and bathroom fans, upgrading smoke detectors, and installing home security cameras. Carpentry: Building decks and railings, fence repair, and installing crown molding. Painting: Interior and exterior painting. Installation: Installing appliances, fixtures, doors/windows and furniture. Maintenance: General property maintenance, including buyer inspection list items, move out inspection/repairs, etc. Our Service Area: N. Seattle * Shoreline * Bothell * Lynnwood * Kirkland * Kenmore * Woodinville * Millcreek * Edmonds * Mukilteo * Everett * Snohomish County. Our new website is coming soon with many instantly self-bookable pre-priced frequently requested services, seasonal promos, first-time customer discounts, new referral program points for homeowners, businessowners, RE agents, landlords, property managers etc., - stay tuned!
Overview

Current Top Pro

Hired 180 times

Background checked

License verified

5 employees

8 years in business

Business hours

Sun10:00 am - 7:00 pmMon7:00 am - 7:00 pm

Payment methods

This pro accepts payments via Apple Pay, Cash, Check, Credit card, Venmo, and Zelle.

Top Pro status

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

Top Pro Icon

2025

Top Pro Icon

2024

Credentials

License verified

Speciality Contractor - Handyman

License state: WA

Background checked

Passed by Davaadorj Damdinsuren on Sep 3, 2023.

Services offered
Sink replacement needed

Sink installation or replacement

Faucet installation or replacement

Sink type

Vessel sink

Pedestal sink

Undermounted sink

Dropin sink

Projects and media
Projects and media
Reviews

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

Great 4.8

77 reviews

5

94%

4

1%

3

1%

2

1%

1

3%

Read reviews that mention:


pro avatar
Jerome H.

Jan 5, 2026

Hired on Thumbtack

Dave did an amazing job upgrading our Google Nest to the latest version. He did an awesome job installing, mounting, making sure we had the secondary sensor mounted and testing heating and AC when everything was done to make sure we were good to go. Great work and highly recommend!

Details: Replacement • Central heating or cooling • House • Homeowner

Thermostat Installation or Repair
pro avatar
Jinny J.

Jul 9, 2025

Hired on Thumbtack

Dave was very prompt and professional. Came for a quick assessment for an old loose outlet, and gave me a reasonable quote upfront. Replaced old outlets less than an hour, and all issues are resolved. $0 service charge is also such a perk in these days. Thanks Dave!

Details: Yes, there is existing wiring • Install switch or outlet • 2 switches or outlets • Rooms without water access, like a bedroom • Drywall • Condo or apartment

Switch and Outlet Installation
pro avatar
Shailly S.

Apr 30, 2025

Hired on Thumbtack

He came down to check the issue free of cost which was great since we had already spent paying other people to fix our electrical issue who could not fix it. He is really skilled in understanding the root cause of the issue and took the time to completely fix it. He took care of the safety issues as well and made sure the job is fully done. We also got our sink and some plumbing work done by him and he was successful in fixing those as well. Really appreciate the work and will definitely reach out again if any issues come up.

Details: Upgrade wiring, fixture, or equipment • Wiring • 8 - 10 feet (standard ceiling) • House

Electrical and Wiring Repair
pro avatar
Antonio S.

Apr 8, 2025

Hired on Thumbtack

Installed a 50amp NEMA 14-50 for me for my new EV. Very professional. They provided an itemized quote which included material pricing as well as labor costs. Dave was very communicative and provided updates on his arrival time. While here, he asked to see my charger cable so that he could properly align the plug. He cleaned up after himself, labeled the fuse box, and made sure that my EV was drawing the proper amperage. I would definitely recommend him if you’re looking for a fairly priced installation!

Details: No, there is no existing wiring • Install EV charger • 1 switch or outlet • Garage • Drywall • House

Switch and Outlet Installation
pro avatar
Eric A.

Feb 14, 2025

Hired on Thumbtack

Dave was one of the first to respond to my inquiry on Thumbtack for heater repair in a townhouse where my tenants had only one working baseboard heater. Dave replaced five baseboard heaters and two thermostats, and added a circuit breaker and rewired one heater which was causing a circuit to trip. He diagnosed the problems quickly for $90, he came up with a good solution for the heater that was tripping. He was then able to get me an estimate the same night for $2500. He scheduled the repair for 3 days later, and the repair took most of a day for a total cost of $3000. The extra cost was due to higher material cost, adding thermostats, and sales tax (which had not been included in the initial estimate). He was very good at communicating, he is very friendly, efficient, and I appreciated that he was professional, including wearing his electrical license badge. I plan to use him for other projects.

Details: Electrical not functioning normally • Lights • Wiring • Circuit breaker panel or fuse box • Under 8 feet (low ceiling) • Townhouse

Electrical and Wiring Repair