Marin County, California
Home Services in Bolinas, CA
Bolinas sits at the edge of West Marin, where coastal weather and off-grid living put real demands on a home's systems. Ongaro & Sons keeps Bolinas comfortable with dependable HVAC, plumbing, electrical, and solar service.
Bolinas is a coastal job, and that changes everything
The single most common mistake in advice written for Marin is to treat the county as one climate. It is not. Bolinas sits between the lagoon and the Pacific, and summer here arrives as wind and fog rather than heat.
That inverts the usual priority list. Inland, cooling capacity is the load that sizes the equipment and drives the panel conversation. Here it is barely a factor. What a Bolinas house actually asks for is steady, efficient heating across a long cool season, air that moves without dragging damp through the building, and equipment that survives salt.
Salt is the part that gets underestimated. Marine air is corrosive in a way inland air is not, and it works on the parts of a system nobody looks at: condenser coils and fins, cabinet fasteners, disconnect enclosures, outdoor conduit and fittings, the terminations inside them. A condenser sited where prevailing wind carries spray will age visibly faster than the same unit two miles inland, and a panel or disconnect enclosure with a tired gasket takes on moisture that turns into resistance and heat. That is why we specify rinse intervals on coastal equipment and check terminations rather than assuming the enclosure did its job.
The second coastal factor is damp rather than salt. In a house that spends most of the year cool, moisture management is a heating and ventilation problem: adequate exhaust, condensate routed properly, and a system that runs long enough to move air rather than short-cycling itself. A correctly sized heat pump does that well here, because it spends nearly all of its running hours doing exactly the job the climate asks for.
On this page
In business in the North Bay since 1932, Ongaro & Sons now runs heating and cooling, plumbing, electrical and solar as one licensed company. The company is Diamond Certified, holds a BBB A+ Rating, and averages 4.8 stars on 2,745 Google reviews. On the coast that matters more than usual, because a job out here should not turn into three separate visits from three separate companies.
The permit is a county permit, and one route is faster than people expect
Bolinas is unincorporated, so the authority is Marin County's Community Development Agency rather than a city building department.
The part worth knowing is that the county runs two processes, and a great deal of ordinary house work falls into the quick one. For jobs that replace something already there, the county's online permit needs no plans at all: you apply online and receive the permit as fast as you can complete the application. The named categories cover the work homeowners schedule, including a water heater, gas piping, bath and kitchen fixtures, a mechanical appliance or HVAC changeout, ductwork, circuits and outlets, a service upgrade and an EV charging station.
That is genuinely useful out here, because it means a straightforward replacement does not carry a plan review cycle on top of the drive. Work that goes beyond replacing what exists takes the other route, with plans and review, and we tell you which one you are in before quoting rather than after.
Bolinas also sits inside the Coastal Zone, which adds a layer that a purely inland contractor will not have thought about. Some projects need coastal development review through the county unless they fall within an exclusion, and that is a question to settle at the design stage rather than at inspection. We raise it early because the cost of raising it late is measured in weeks.
Wells, septic and what they do to a plumbing call
A large share of coastal Marin property is on a private well, a septic system, or both, and that changes what a symptom means before anyone opens a fixture.
On a well, household pressure is manufactured on site by a pump and a pressure tank cycling between a cut-in and a cut-out point. There is no municipal regulator doing that job, so a complaint about weak or surging water usually starts with the tank's air charge and the pressure switch settings rather than with the fixtures. A pressure tank that has lost its charge makes the pump start and stop rapidly, which is the fastest way to destroy a pump motor, and it presents to a homeowner as "the water is acting weird."
On septic, slow drains at every fixture at once are as likely to be the tank or the dispersal field as anything inside the house. Cabling a building drain into a full tank buys a few days. The tells useful to know are gurgling across the house rather than at one fixture, odor outdoors, soggy or unusually green ground over the field, and symptoms that worsen after heavy use or a wet week. EPA's guidance is a reasonable baseline: a household system should be inspected at least every three years and tanks are typically pumped every three to five, with alternative systems carrying mechanical parts inspected roughly annually.
One coastal-specific caution. EPA is direct that chemical drain openers do not belong in this system, and on septic that is not a preference: the tank runs on living organisms and a slug of caustic passes straight through to them. Mechanical clearing solves the blockage and lets us see the pipe's condition at the same time.
Power goes out here, and a well makes that a water problem
A Public Safety Power Shutoff is PG&E turning the power off on purpose when fire weather is bad enough. West Marin also loses power for ordinary reasons more often than the flatland does: one road in, wind off the ocean, and trees on the line.
For a household on a well that is not an inconvenience, it is a habitability question. The pump is an electrical appliance and the pressure tank holds minutes rather than days, so the taps stop when the lights do. A septic system with an effluent pump is in the same position, and flow into the house becomes a problem within a day rather than a week.
The design work happens at the panel. A generator interlock or transfer switch needs a home, a battery needs busbar capacity to backfeed into, and a critical loads subpanel carrying the well pump, the refrigerator and a few circuits is far cheaper to build while the panel is open than to retrofit later. Certified Generac Generator installer, C-10 licensed: the unit, the transfer switch and the panel are handled together. On a well property the pump usually sets the sizing, and its starting surge matters more than its running draw.
Heating in a house that is rarely hot
Bolinas housing runs from prewar cottages and farmhouses through mid-century construction, most of it modernized rather than replaced, and that history is written into the mechanical systems.
Older houses out here frequently have no usable duct path at all, or one added long after framing and never sized for the equipment eventually connected to it. That is where a project fails, and it fails quietly: high-efficiency equipment on undersized or leaky ducts delivers its rating on the label and nothing like it in the rooms. We measure static pressure before specifying rather than after.
Where the duct route is not there, ductless equipment is the answer rather than a compromise. A wall or ceiling head runs on a small refrigerant line set, so a plaster-walled cottage gets real heating without opening ceilings, and a room whose load looks nothing like the rest of the house gets its own control. We are a Mitsubishi Diamond Contractor Elite and a Trane Comfort Specialist, and we size each head against the room rather than a rule of thumb.
Two industry facts sit under any repair-or-replace decision. R-22 production and import in the United States ended in 2020, so a leak on pre-2010 equipment draws only on reclaimed or stockpiled refrigerant and becomes a replacement conversation. R-410A is separately being phased down under the AIM Act, with newly manufactured residential equipment moving under a 700 GWP limit. The system you already own is unaffected; the phasedown governs what is sold new.
Electrical work at the end of the road
All of Marin sits inside the Bay Area Air Quality Management District, so the district's zero-NOx appliance requirements reach this address. They govern what may be sold and installed from a future date rather than the unit already fitted, and the district says they apply only when current equipment burns out. Nobody is taking a working water heater away. What the rule does is push the eventual replacement toward electric equipment, and electric equipment wants a 240-volt circuit and the panel headroom to feed it.
So the load calculation is the step that decides most projects here, and it is the one most often skipped. On a coastal property the arithmetic is unusual: little or no cooling load, which helps, and a well pump with a starting inrush well above its running current, which does not. Add an outbuilding feeder, a shop, or a long run to a pump house and voltage drop over distance becomes a design constraint rather than an afterthought.
The other recurring finding is age. Prewar and mid-century wiring out here brings ungrounded two-wire circuits, cloth-jacketed cable gone brittle where it enters the panel, and subpanels in outbuildings with no separate grounding electrode. An ungrounded circuit has a code-recognized remedy short of a rewire, protecting it with a ground-fault device and labeling the receptacles, but that protects people rather than equipment, and it does not give a surge protector the reference it needs.
Solar and storage on the coast
Permitting is the easy half. Government Code 65850.5 obliges the county to run a streamlined process for small residential rooftop systems, to approve a complying application administratively rather than at its discretion, and to keep review inside health and safety. Your solar permit is a checklist exercise, not an argument.
The design question here is different from the inland one. Anyone whose interconnection application went in from April 2023 onward takes service on the Net Billing Tariff, which values an exported kilowatt hour at what it is worth to the grid in that hour rather than at the retail rate.
On a coastal property storage does a second job that matters more than the arithmetic: it keeps the well pump running when the line is down. A grid-tied array without storage shuts off during an outage by design, so it cannot backfeed a line a crew may be working on. Homeowners are consistently surprised by that. The panels are on the roof, the sky is bright, and the house is dark.
What drives the cost out here
Two variables dominate on this side of the hill, and neither of them is the appliance.
Access and distance come first, and both belong in the quote rather than in a surprise later. Bolinas is a real drive from anywhere with a supply house, the road is what it is, and a job that needs an unplanned second trip for a part costs more here than the same job in Novato. That is why we spend longer on the assessment: the aim is to arrive once with the right equipment rather than twice with the right attitude.
Then condition. Older coastal housing produces findings rather than surprises: corrosion at outdoor terminations, a disconnect enclosure that has been taking on water for years, a vent that was never right, a crawlspace that is tight. Those go in the estimate rather than in a change order, because discovering them halfway through a coastal job is expensive in a way it is not in town.
After that the usual levers apply. Whether the work stays inside one trade or pulls in a second. Whether a duct route exists. Whether the panel has headroom. Whether a trench has to cross ground that has to be put back. And the code-required items that every inspection checks and no homeowner budgets for: seismic strapping, an expansion tank where the system is closed, combustion air and venting, and the permit itself.
Maintenance that is worth the trip
On the coast the maintenance list is shorter than inland but the items are less optional.
Rinse outdoor coils and check outdoor enclosures, gaskets and terminations, because salt does its work slowly and invisibly and the first symptom is usually a failure. Flush a storage water heater annually and have the anode rod checked, since it is a consumable whose entire purpose is corroding so the tank does not. A well needs its pressure tank charge checked, its sediment filter changed, and its water analyzed occasionally. On septic, hold to a pumping interval instead of waiting for a symptom, and keep vehicles and roof runoff off the dispersal field.
Then the two-minute items: press the test buttons on ground-fault devices, exercise the main shutoff and the angle stops so they are not seized on the day you need them, and know where the pump and its breaker are. A maintenance plan puts the whole list on a schedule rather than on your memory, which matters more somewhere a contractor cannot drop by casually.
Where we work around Bolinas
We cover the mesa, the downtown streets near the lagoon, and the properties spread along the ridge and out toward the point, plus the surrounding unincorporated West Marin parcels where wells, septic systems and outbuildings are the norm rather than the exception.
Every job runs from our Petaluma headquarters, which is a real distance and worth planning around rather than pretending away. Work booked ahead gets the appointment window you want, and if the property needs more than one thing looked at, doing it on one visit is worth considerably more out here than it would be somewhere we pass through daily.
How to choose a contractor for coastal work
Ask what they intend to do about salt. A company that specifies the same outdoor equipment and the same siting here as it would in San Rafael has not thought about where your house is.
Ask whether they know which county permit route your job falls into. A replacement that qualifies for the county's online permit and one that needs plans are different projects on the calendar, and a contractor who cannot tell you which is which has not checked.
Ask what changes because you are on a well or a septic system. Listen for whether the answer is specific.
Ask for the load calculation in writing before you see a price on anything electric, and ask what happens if it comes back short.
Then confirm the license classification. Mechanical work is C-20, plumbing C-36, electrical C-10, and we hold all three, which matters the moment a water heater turns into a circuit or a pump turns into a panel conversation.
What North Bay homeowners say
Brandon did a great job for us. He did a complete system check using good software and hardware, and found a capacitor that was failing and replaced it before it caused an outage on our air conditioning system.
James R.
Always helpful and on time. They are my go to to anything heating related!
Mike S.
Home services across Bolinas and Marin County
One company, all four trades: heating and cooling across Marin County, plumbing across Marin County, electrical across Marin County, and solar across Marin County. Along the coast we also serve Stinson Beach, Olema, Point Reyes Station and Inverness. The Marin County service overview covers the whole county.
Book service in Bolinas
Tell us what the house is doing, whether you are on a well or septic, and roughly when it started, and we will bring the diagnostic tools that description calls for. Book online at a time that suits you. Scope, permit route and price are all confirmed before work begins.
Bolinas homeowner questions
Who is the best home services company in Bolinas?
Ongaro & Sons, founded in 1932, serves Marin, Sonoma and Napa counties, is Diamond Certified, holds a BBB A+ Rating, and carries 4.8 stars over 2,745 Google reviews. On the coast the useful test is narrower than reputation: ask who will specify equipment for salt exposure, who knows which county permit route your job takes, and who can handle the electrical half when a well pump or a heat pump turns out to be the real job.
What kind of heating works best in a Bolinas house?
Something that runs long and steady rather than something powerful. Summers here arrive as fog and wind rather than heat, so cooling capacity barely enters the sizing, and the real requirement is efficient heating across a long cool season with enough air movement to keep damp down. A correctly sized heat pump suits that almost perfectly. Where an older cottage has no usable duct path, ductless heads are the answer rather than a compromise.
Do I need a permit, and does Bolinas being unincorporated change it?
Yes to the permit, and yes it changes where it comes from. There is no city hall to file with here, so every permit runs through Marin County's Community Development Agency. The useful part is that the county runs a quick online route for work that replaces something already there, with no plans required, covering water heaters, HVAC changeouts, circuits, service upgrades and EV charging among others. Anything beyond a replacement takes the longer route with plans.
What is different about being in the Coastal Zone?
It can add a review layer that inland projects never see. Some work needs coastal development review through the county unless it falls within an exclusion, and that is a question to settle while the project is still on paper. It rarely stops a straightforward mechanical or plumbing replacement, but it is the sort of thing that turns a two-week job into a two-month one if nobody raises it until the permit stage.
Does salt air really damage HVAC equipment?
Yes, and it does it where you are not looking. Marine air works on condenser coils and fins, cabinet fasteners, disconnect enclosures, outdoor conduit and the terminations inside them. Equipment sited where prevailing wind carries spray ages visibly faster than the same unit a couple of miles inland. Siting, rinse intervals and checking outdoor terminations for corrosion are ordinary coastal maintenance rather than an upsell.
My house is on a well. What should I be watching?
The pressure tank and the switch, before anything else. Household pressure on a well is made on site rather than delivered, so weak or surging water usually traces back to the tank's air charge or the switch settings rather than to a fixture. A tank that has lost its charge makes the pump start and stop rapidly, which is the quickest way to destroy a pump motor. Test the water on a schedule too, since quality on a private well is the owner's responsibility.
All my drains are slow at once. Is that a blockage?
On a septic property, often not. Everything slowing together, gurgling across the house, odor outdoors or soggy ground over the field points at the tank or the dispersal field rather than at any drain inside. Running a cable into a full tank achieves nothing. We establish which system you are on and where the problem sits before treating it, because the two answers cost very different amounts.
What happens to the water in Bolinas when the power goes out?
If you are on a well, it stops. The pump is electric and the pressure tank holds minutes rather than days, so the taps go with the lights. A septic system with an effluent pump has the same dependency. A gas tankless water heater will not fire without power for its controls, and a heat pump water heater does nothing at all, while an old atmospheric gas tank keeps whatever heat it already had. On a well property that belongs in the equipment conversation rather than a year afterwards.
Will I be forced to replace my gas water heater in Bolinas?
No. All of Marin is inside the Bay Area air district, so its zero-NOx standard does reach here, but it governs what may be sold and installed from a future date rather than what is already in your house, and the district says it applies only on burn-out of current equipment. The dates arrive appliance by appliance. What shifts over time is what a supplier stocks, which is a reason to know your panel's headroom early.
Are there rebates for a heat pump in Bolinas?
MCE is Marin's community choice provider and runs the relevant residential programs. The conditions decide your schedule more than the amounts do: ownership and occupancy for twelve months, a participating contractor filing the application, and no retroactive claims, so the paperwork goes in before the equipment does. Terms move, and we check the current ones against your specific equipment when the work is scoped rather than quoting from memory.
How quickly can you get to Bolinas?
Not the same afternoon, and we would rather say so. Every Bolinas job runs from our Petaluma headquarters and the drive is what it is. Booking ahead gets you the window you want, and we spend longer on the assessment so the truck arrives once with the right parts instead of turning a coastal job into two trips.