contractors.fyi
Sign in

Flow Masters Plumbing Inc

Heat pump installer based in Daly City. Licensed since 2011.

  • License active
  • Workers' comp on file

51 heat pump jobs on San Francisco permits, 2021 to 2026. 15th most heat pump permits of 217 contractors in San Francisco.

Get a quote from Flow Masters Plumbing IncCall (415) 751-1933Visit website Check license 966337

What the public records show

From the state's license records and the city's permits, one question at a time.

QuestionRecords showMark
Licensed?License 966337, active in the state's records on Sep 23, 2026Fire protection, heating and air, plumbingNo complaints or citations on the board's public record.Checks out
Workers' comp?Workers' comp policy on file with the stateThis covers their crew if someone is hurt. It is not insurance for your home.On file
In business?Licensed since 2011
Jobs on record51 heat pump jobs on San Francisco permits, 2021 to 2026Every permit we have for them is heat pump.They are based in Daly City. Work outside San Francisco is not in these records.15th most heat pump permits of 217 licensed contractors in San Francisco. That counts jobs, not quality.Our San Francisco permit records cover September 2021 to September 2026.Of their 51 heat pump permits, 1 mention ductless or mini-split units.

Records: the state license board and City of San Francisco permits.

State license board record

No complaints or citations on the board's public record.

Source: California Contractors State License Board, checked Oct 4, 2026. Look up license 966337 on CSLB

Cost and timing

Permit value (not a price)

Their typical permit lists $1,000 (half list more, half less)

That is the figure written on the permit form, which can be far from what you pay. What heat pump jobs cost in San Francisco.

Get 2 or 3 written quotes.

Permit timeline

Across San Francisco, a heat pump permit stays open about 45 days, 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 heat pump jobs take.

Track record

6 jobs in the last 12 months, about the same as 6 the year before

Q4 2021: 1 jobQ2 2023: 1 jobQ4 2023: 18 jobsQ1 2024: 16 jobsQ2 2024: 3 jobsQ4 2024: 3 jobsQ3 2025: 3 jobsQ4 2025: 1 jobQ1 2026: 2 jobsQ2 2026: 1 jobQ3 2026: 2 jobsBusiest: 18 jobsLatest: 2 jobs20222023202420252026
Each bar is 3 months of permits. The tallest is 18 jobs, October to December 2023. Across San Francisco, all contractors together had 17% more heat pump jobs in the last 12 months than in the 12 months before.

Where they work most

  • 9411015 jobs
  • 941079 jobs
  • 941315 jobs
  • 941125 jobs
  • 941174 jobs

Latest jobs

Permit values are what the contractor wrote on the permit form, not what the owner paid.

A row marked ×2 or more stands for that many similar jobs on one day in one ZIP code.

DateWorkZIPOn the permit form
Jul 28, 2026Heat pumpWork category: 1p; central heat heat pump like for like94131not stated
Jul 8, 2026Heat pumpWork category: 1m; mini split heat pump replacement on back deck94131$1,000
Apr 16, 2026Heat pumpWork category: 1p; replace 50 gal gas water geater with 80 gal heat pump water heater in the same…94131not stated
Mar 19, 2026Heat pump94110not stated
Feb 6, 2026Heat pump94110not stated
Dec 5, 2025Heat pump94123not stated
Sep 3, 2025Heat pumpWork category: 1p; replaced tankless water heater with a heat pump water heater in same location94110not stated
Sep 3, 2025Heat pumpWork category: 1p; replace 60 water heater and replace with a 80 gal heat pump water heater in…94110not stated
Sep 2, 2025Heat pumpWork category: 1p; remove 6 existing water heaters and replace them with new central heat pump dhw…94109not stated
Dec 24, 2024Heat pumpWork category: 1p; replace water heater with heat pump water heater94110not stated
Oct 28, 2024Heat pumpWork category: 1p; replace existing gas water heater with new heat pump water heater94110not stated
Oct 9, 2024Heat pump94107not stated
Jun 20, 2024Heat pumpWork category: 1p; replacing tank water heater with a heat pump water heater94110not stated
Apr 25, 2024Heat pumpWork category: 1p; replacing water heater with a heat pump water heater94117not stated
Apr 10, 2024Heat pumpWork category: 1p; replace gas tank water heater with a heat pump water heater94121not stated
Feb 26, 2024Heat pumpWork category: 1p; replacing a 50 gal gas water heater with a heat pump water heater ( 80 gal ) in…94107not stated
Feb 5, 2024Heat pumpWork category: 1p; replacing 50 gal water heater with a heat pump state 66 gal in garage94110not stated
Feb 5, 2024Heat pumpWork category: 1p; replacing water heater with a heat pump water heater in same location94117not stated
Jan 31, 2024Heat pumpWork category: 1p; replacing gas tank water heater for a heat pump water heater94107not stated
Jan 29, 2024Heat pump, 2.5 kWWork category: 1p; install heat pump water heater - 15amp 208-240 vac 2.5 kw94114not stated
Jan 24, 2024Heat pumpWork category: 1p; remove existing gas water heater and install heat pump water heater94107not stated
Jan 22, 2024Heat pump (×2, same day)Work category: 1p; install new heat pump water heater - 120v shared circuit 15amp plug in - dispose…94107not stated
Jan 22, 2024Heat pump, 2.5 kWWork category: 1p; install heat pump water heater - heat pump wh 15amp 208-240 vac 2.5 kw - dispose…94114not stated
Jan 15, 2024Heat pumpWork category: 1p; replace 40 gallon standard gas water heater with new heat pump water heater94112not stated
Jan 15, 2024Heat pumpWork category: 1p; - supply and install heat pump wh94117not stated
Jan 12, 2024Heat pumpWork category: 1p; replace 40 gallon standard gas water heater with new heat pump water heater94112not stated
Jan 5, 2024Heat pump (×3, same day)94110not stated
Jan 3, 2024Heat pump94127not stated
Dec 29, 2023Heat pump94117not stated
Dec 29, 2023Heat pump94116not stated
Dec 21, 2023Heat pump94122not stated
Dec 14, 2023Heat pumpWork category: 1p; removed gas water heater and install new heat pump water heater94112not stated
Dec 14, 2023Heat pump94110not stated
Dec 14, 2023Heat pump94109not stated
Dec 14, 2023Heat pump94110not stated
Dec 7, 2023Heat pump94127not stated
Dec 7, 2023Heat pump94131not stated
Nov 29, 2023Heat pump94110not stated
Nov 28, 2023Heat pumpWork category: 1p; removed old gas water heater and install new heat pump water heater94110not stated
Nov 27, 2023Heat pump94114not stated

What to ask before you hire

About Flow Masters Plumbing Inc

  • Ask what the warranty covers and for how long, in writing.

Worth asking any heat pump installer

  • Can you show me proof of liability insurance and your bond?
  • What size unit, and did you measure the house to choose it?
  • Do my ducts or my electrical panel need work first?
  • Who pulls the permit, and what rebates apply?

Get a quote from Flow Masters Plumbing Inc

Five quick questions. We pass your request to Flow Masters Plumbing Inc.

You decide who to hire. Your details go only to the contractors you pick. How we use your details

1. Where is the job?

We match contractors who work near it. We never ask for your street address.

2. What do you need?

Pick any that fit.

3. When do you want to start?
4. What is your rough budget?

A range is fine. It helps contractors reply with a real number.

5. Where should we send it?

Your contact details go only to who you pick here.

Sent. We have your request.

We pass it to Flow Masters Plumbing Inc. Replies usually come within a few days.

Your job room keeps the request, your photos and every reply in one place, with an assistant that checks prices against city permits. Keep its link: it is the key to your job.

Open your job room

More heat pump installers near 94110 and 94107

See all 217 heat pump installers in San Francisco, ranked by jobs

Run this business? Claim this page to get requests by email and reply to homeowners here.

Is this your business? Correct a record or add your warranty terms. It is free.

We check every change before it goes on the page, usually within a week, and may call to confirm you run the business.