Updated: Jul 11, 2026
Location and Projects
Address
3093 Marlow Rd, Santa Rosa, CA, 95403
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Ongaro & Sons, Inc Photos
Ongaro & Sons HVAC/Mechanical Contractor
Ongaro & Sons, Inc, 3093 Marlow Rd, Santa Rosa, CA (Employee: Ernest Paul Ongaro) holds a Plumbing, Boiler, Hot Water Heating And Steam Fitting, Warm Air Heating, Ventilating And Air Conditioning, Pipeline, Sanitation System, Sheet Metal, Fire Protection, Machinery And Pumps, Electrical, Welding, Roofing license and 2 other licenses according to the California license board.
Their BuildZoom score of 110 ranks in the top 4% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Ongaro & Sons, Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Ongaro & Sons, Inc Services
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Ongaro & Sons, Inc Contact Information
Phone Number: (888) 600-1614
Address: 3093 Marlow Rd, Santa Rosa, CA 95403
Ongaro & Sons, Inc Santa Rosa
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Ongaro & Sons, Inc has a BuildZoom score of 110, which places them above 96% of 336,931 contractors in California.
Activity
|
5 projects
|
2026 |
|
1479 projects
|
2025 |
|
1284 projects
|
2024 |
|
1161 projects
|
2023 |
Our building permit records indicate that Ongaro & Sons, Inc has worked on at least
3929.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
231 projects
|
Home Additions |
|
95 projects
|
New Constructions |
|
5 projects
|
Commercial Renovations |
|
2132 projects
|
HVAC projects |
|
1414 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Ongaro & Sons, Inc mostly works on
hvac project
and mechanical project
projects.
Pricing
|
1006 projects
|
< $5k |
|
832 projects
|
$5k-$20k |
|
93 projects
|
$20k-$50k |
|
7 projects
|
$50k-$100k |
|
6 projects
|
$100k-$250k |
|
2 projects
|
$250k-$500k |
|
1 project
|
$500k-$1mil |
The typical size of their permits is approximately $4,800. This graph shows the distribution of these job values.
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Pln21-0004; residential remodel and addition: 690 square foot first floor addition and 1 142 second story addition at an existing one-story single-family home.(5) bedroom (3)bath. (n) sump pump and french drain. (2) new service meters 2oo amp each one for main house other for adu (bldg/elec/mech/plump)
Valuation:
$930,000
Permit #:
CB24-0078
Status:
issued
Fee:
$29,898
Permit Type:
N/A
Building Type:
N/A
Convert existing unhabitable first floor into (9) studio apts units f-n addition separate electrical meter 100 amp each and water meter for ***no changes to existing upper floor units a-e*** (bldg/elec/mech/plumbing) **shared plans with adu24-006 and adu24-0007 b24-0021***unpermited work will be address on seperate permit ***
Valuation:
$90,000
Permit #:
CB24-0029
Status:
plancheck
Fee:
$21,549
Permit Type:
N/A
Building Type:
N/A
Revision to bpa#202412197142:replace (e) boiler with a (n) lochinvar 199k btu that will be heating a indirect 119 gallon domestic water tank for a 26 gal buffer storage tank for radiant heating system.install radiant 1/2 in pex tubing in the underfloor of all 5 levels
Valuation:
$31,000
Permit #:
202502100024
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Hvac permit: replace furnace with air handler and new heat pump. the existing unit shall be removed. the new unit shall be placed in the same location as the existing unit and shall not exceed the size of the existing unit by more than 25%. cf-1r-alt-hvac on file: carbon monoxide & smoke alarms required. reference crc sections r315 & r314
Valuation:
$16,000
Permit #:
RES-2510480
Status:
final
Fee:
$238
Permit Type:
N/A
Building Type:
Single family
Replace 4 clay upper sewer lateral via trenchless pipe bursting install a new clean out behind the home with a backflow prevention device reinstate wye connection the left side of the home for the bathroom and install a new clean out in the side in a christy box with a backflow prevention device
Valuation:
$7,000
Permit #:
PLMR-2025-0033
Status:
complete
Fee:
$558
Permit Type:
N/A
Building Type:
N/A
We will be replacing 150ft of the 4in clay lateral via trenchless pipe bursting using sdr-17. installing a clean out at the house with a backflow prevention device a 2way clean out at the bottom of the stairs and a public right of way clean out before the city main dirt with abackflow prevention device
Valuation:
$9,000
Permit #:
B40809
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential
New plumbing fixture(s) replace plumbing fixtures(s);
2025-06-23
Furnish and install a new navien pe240a2 tankless water heater remove and recycle two old water heaters in downstairs area. run a new section of 3/4” copper piping approximately 60ft. from back area to where tankless unit is to be mounted. tie to new hot and cold flush valve new gas flex line mount unit to interior mechanical closet wall. run a dedicated 3/4” gas line approximately 10... see more
Valuation:
$3,500
Permit #:
B42846
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential
Sfd-remove existing tankless ?furnish and install (1) professional grade navien 199 000 btu tankless in the same location like for like. the new tankless will be installed in the same location reusing the existing water gas and flue pipes. the existing pressure relief will also be reconnected to the existing drain setup
Valuation:
N/A
Permit #:
BLD25-3525
Status:
issued
Fee:
$364
Permit Type:
N/A
Building Type:
N/A
Install 60a dedicated circuit for 60a tesla ev charger located in garage *this is the homeowner's first billing cycle with the utility department i got confirmation that his name is on the account but it is still not showing up on this online portal. i was told to go ahead and request the permit and give you the new homeonwer's name: jose canete
Valuation:
$600
Permit #:
25-05-254
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
Single family
Upper sewer lateral replacement. replacement of approx 35ft from behind of the sidewalk all the way to the existing cleanout in front of home. also install new cleanout near the sidewalk. replacement of the upper sewer lateral not going in the sidewalk but going near the sidewalk
Valuation:
$4,800
Permit #:
PLMR-2025-0123
Status:
complete
Fee:
$227
Permit Type:
N/A
Building Type:
N/A
Single family dwelling install electric tankless water heater next to (e) radiant system in basement. **installation** we will not remove & dispose of old water heater since it its supplying radiant heat for the upstairs granny unit. we will only be disconnecting the hot & cold domestic lines and routing them to new tankless unit. ongaro and sons is not responsible for the electrical ... see more
Valuation:
N/A
Permit #:
BLD25-2094
Status:
issued
Fee:
$364
Permit Type:
N/A
Building Type:
N/A
Sfd- to service the main house - replace approx 180 lf of failed ducting with new ducting replace failed furnace and air conditioning with new furnace and air conditioning - ducting located in crawlspace and attic furnace located in garage and air conditioning located in back yard
Valuation:
N/A
Permit #:
BLD25-1473
Status:
final
Fee:
$364
Permit Type:
N/A
Building Type:
N/A
Single family dwelling - replace furnace and air conditioning with new air handler and heat pump single family dwelling - to service the main house - replace failed furnace and air conditioning with new air handler and heat pump - air handler located in garage and heat pump located in right side yard
Valuation:
N/A
Permit #:
BLD25-1261
Status:
final
Fee:
$364
Permit Type:
N/A
Building Type:
N/A
Replace (1) 40 gallon water heater in indoor closet - like for like. remove (1) 40 gallon water heater from laundry room and cap gas line. connect water lines from the removed water heater to the new water heater in the indoor closet to service the laudry room
Valuation:
N/A
Permit #:
B25-1309
Status:
final
Fee:
$235
Permit Type:
N/A
Building Type:
N/A
Replace and relocate tanked water heater with tankless water heater. run a polly propane line from tank to home approx 10ft once we came up at home we transitioned to 1inch galvy & ran that exterior of home to the tankless location which was approx 25ft that was then hooked up at tankless in 3/4 galvy
Valuation:
$2,500
Permit #:
B41206
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential
We will replace failed tankless water heater located in the indoor kitchen and install new tankless water heater in the same location. we ran a dedicated gas line from the meter to the tankless through the crawlspace. 1in galvy piping 50ft in length
Valuation:
$4,900
Permit #:
B41171
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential
Encroachment - sidewalk sewer water monitoring wells misc
2025-05-01
Replace 4 clay upper sewer lateral via trenchless pipe bursting install a new clean out behind the home with a backflow prevention device reinstate wye connection the left side of the home for the bathroom and install a new clean out in the side in a christy box with a backflow prevention device
Valuation:
N/A
Permit #:
PWEP-2025-0078
Status:
complete
Fee:
$471
Permit Type:
N/A
Building Type:
N/A
(need plans that have title page proper site plan sld and tech specs by 4/21 or void) install new generac 22kw generator on concrete slab with a 200 amp automatic transfer switch (ats) on right side of house. install a dedicated 3/4 galvanized gas line from pg&e meter to generator within 10ft
Valuation:
N/A
Permit #:
BLD25-0334
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove failed tank water heater located in outdoor closet and install a new tankless water heater in the same location. we will run a dedicated gas line 3/4 galvy from gas meter to tankless. 40ft is ran interior of garage. 100 ft is ran exterior of the carehome/home
Valuation:
N/A
Permit #:
B25-0349
Status:
final
Fee:
$235
Permit Type:
N/A
Building Type:
N/A
Sfd- we will be installing an 80 gallon american standard heat pump water heater in the location of the existing water heater located in the garage. - this heat pump water heater will need electrical ran to that location with a quick disconnect box as well as an electrical whip for us to hook up to this will need to be a 30 amp circuit. - the electrical is not included in the estimate... see more
Valuation:
N/A
Permit #:
BLD25-0061
Status:
final
Fee:
$364
Permit Type:
N/A
Building Type:
N/A
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Ongaro & Sons, Inc License info
Verified License
| License # | 215233 |
| Status | Active |
| State | California |
| Type | Plumbing, Boiler, Hot Water Heating And Steam Fitting, Warm Air Heating, Ventilating And Air Conditioning, Pipeline, Sanitation System, Sheet Metal, Fire Protection, Machinery And Pumps, Electrical, Welding, Roofing |
| Business Type | Corporation |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Ongaro & Sons, Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 581735 |
| Status | Inactive |
| State | California |
| Type | Plumbing |
| Business Type | Corporation |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Ongaro & Sons, Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 255963 |
| Status | Inactive |
| State | California |
| Type | Boiler, Hot Water Heating And Steam Fitting, Warm Air Heating, Ventilating And Air Conditioning, Pipeline, Plumbing, Sanitation System, Sheet Metal, Welding |
| Business Type | Corporation |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Ongaro & Sons, Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
Bonded
| Bonded Agent | Developers Insurance Company |
| Bond Value | $5,000 |
Insured
| Workers Comp Provider | Compwest Insurance Co |
9.9K
Permits
- Building permit records show that Ongaro & Sons, Inc has worked on 9927 permitted projects.
Ongaro & Sons, Inc Employees
EO
Ernest Paul Ongaro
Sole Owner