Yk Mason & Sons Inc
Remodeling contractor based in San Francisco. Licensed since 2015.
- License active
14 jobs on San Francisco permits, 2021 to 2026: 6 remodels, 4 panel upgrades, 1 solar installation, 1 heat pump installation, 1 ADU, 1 seismic retrofit. 579th most remodel permits of 1,150 contractors in San Francisco.
What the public records show
From the state's license records and the city's permits, one question at a time.
| Question | Records show | Mark |
|---|---|---|
| Licensed? | License 1001324, active in the state's records on Sep 23, 2026General building, D39No complaints or citations on the board's public record. | Checks out |
| In business? | Licensed since 2015 | |
| Jobs on record | 14 jobs on San Francisco permits, 2021 to 2026: 6 remodels, 4 panel upgrades, 1 solar installation, 1 heat pump installation, 1 ADU, 1 seismic retrofitTheir permits mention 4 bathrooms, 3 kitchens.579th most remodel permits of 1,150 licensed contractors in San Francisco. That counts jobs, not quality.Our San Francisco permit records cover September 2021 to September 2026. |
Records: the state license board and City of San Francisco permits.
State license board record
Last checked Oct 4, 2026. This may have changed. Check it on CSLB.
No complaints or citations on the board's public record.
Source: California Contractors State License Board, checked Oct 4, 2026. Look up license 1001324 on CSLB
Cost and timing
All remodel jobs in San Francisco: $20,000 to $78,000
Half of 14,013 city permits list an amount in this range. Permit amounts are often lower than what you pay.
- Kitchen remodels in San Francisco: $25,000 to $89,000 (8,666 permits)
- Bathroom remodels in San Francisco: $20,000 to $80,000 (10,979 permits)
- Basement remodels in San Francisco: $50,000 to $290,000 (316 permits)
How to read this range
Contractors write a job value on the permit form, and the city uses it to set the permit fee. It is not the contract price, and it is often lower than what you pay. A quarter of the permits list less than this range, and a quarter list more. Use it to see if a quote is in the normal range.
Permit value (not a price)
Their typical permit lists $17,500 (half list more, half less)
That is the figure written on the permit form, which can be far from what you pay. What remodel jobs cost in San Francisco.
Get 2 or 3 written quotes.
Permit timeline
Across San Francisco, a remodel permit stays open about about 6 months, from permit to final inspection
This is not how long the crew works at your home: most of it is waiting for the inspection. Ask them how many days the work takes. The permit itself is usually issued the same day. How long remodel jobs take.
Track record
3 jobs in the last 12 months, about the same as 3 the year before
Where they work most
- 941183 jobs
- 941222 jobs
- 941162 jobs
- 941342 jobs
- 941312 jobs
Jobs by kind of work
Latest jobs
Permit values are what the contractor wrote on the permit form, not what the owner paid.
| Date | Work | ZIP | On the permit form |
|---|---|---|---|
| Jul 23, 2026 | Panel upgradeKitchen and bath remodel | 94122 | not stated |
| Jul 13, 2026 | RemodelBathroom remodel, changing tub to shower pan, plumbing and electrical updates as needed | 94127 | $20,000 |
| May 13, 2026 | RemodelUnit 234 1/2: kitchen remodel, install new circuit breaker to lower unit, adding receptacles to… | 94118 | $7,000 |
| Jun 30, 2025 | RemodelBathroom remodel on 2nd floor | 94122 | $15,000 |
| Mar 5, 2025 | Remodel(rear unit) kitchen remodel with updating kitchen cabinet & countertop | 94118 | $20,000 |
| Mar 5, 2025 | Panel upgradeInstall new 50 amp sub panel for the kitchen remodel.install garbage disposal,dishwasher and… | 94118 | not stated |
| Feb 1, 2024 | Solar1st fl:convert e bathroom and storage into bedrm suite (390 sf). update e interior stairs rise and… | 94107 | $40,000 |
| Jan 11, 2024 | Panel upgradeInstall new electrical for upstair bathroom, isntall subpanel for downstair adu unit kitchen | 94116 | not stated |
| Jan 11, 2024 | Heat pumpInstall mini split unit for downstair adu | 94116 | not stated |
| Aug 30, 2023 | Panel upgradeInstall subpanel to the new adu unit | 94134 | not stated |
| Jul 27, 2023 | ADUNew adu at the 1st floor w/ one new kitchen, living area and 2 bedrooms | 94134 | $100,000 |
| Jun 3, 2022 | RemodelTo comply with nov 202184086. fire and water damage repair | 94131 | $130,000 |
| Feb 4, 2022 | Seismic retrofitSoft story retrofit per sfebc chapter 4d, asce 41-06 | 94133 | $100,000 |
| Oct 28, 2021 | RemodelFirst floor one bathroom remodel | 94131 | $15,000 |
What to ask before you hire
About Yk Mason & Sons Inc
- Ask what the warranty covers and for how long, in writing.
Worth asking any remodeling contractor
- Can you show me proof of liability insurance and your bond?
- What is in the price, and how do you price changes once work starts?
- Who will run the job day to day, and who are the subcontractors?
- Who pulls the permits, and what is the payment schedule?
Get a quote from Yk Mason & Sons Inc
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