Corona del Mar was built out mostly as a beach village, and for decades people here got by with an ocean breeze and a small gas heater. The marine layer still does a lot of the cooling for you in June. But late summer and early autumn bring warm, still afternoons, and many families now work from home in rooms that heat up by three o'clock. That is why so many of our calls in CdM start with the words “we have never had air conditioning”.
At the same time the older cottages are steadily being replaced by larger new homes, often two or three storeys on the same narrow lot. Those arrive with modern systems, but also with the problems that tall, glassy houses create: a hot top floor, several air handlers in tight closets, and condensers competing for space in a side yard a few feet wide.
So the work here splits into two very different jobs. For the older houses it is a retrofit, fitting heating and cooling into a structure that was never planned for ducts or a condenser. For the new builds it is commissioning and service, making sure a large, expensive system actually delivers even comfort. We do both, along with the everyday repairs, tune-ups and upgrades in between.
There is no single right answer, and anyone who quotes a retrofit without going into the attic is guessing. These are the options we lay out for CdM owners, and why each suits a different house.
The most familiar option and often the most economical per room, if the attic has enough height to run ducts and house an air handler. Many cottages have low, crowded attics, though, and a ducted system forced into one ends up with crushed runs and noisy registers. A ducted heat pump gives you heating and cooling from the same equipment and suits the mild climate well.
No ducts at all: a compact outdoor unit feeds one or more wall, ceiling or floor heads through a small refrigerant line. Each room gets its own control, and the outdoor unit is typically smaller and quieter than a conventional condenser, which matters on a tight lot. This is often the least disruptive way to add both heating and cooling to a Flower Streets cottage. Our ductless vs central comparison goes into the trade-offs.
A middle ground for owners who do not want heads on the walls and have no room for conventional ducts. Narrow insulated tubes snake through wall and ceiling cavities to small round outlets. They cost more than ductless and need careful planning, but they can preserve original plasterwork and trim in a house you are keen to keep looking original.
Whatever the option, we calculate the load room by room. A cottage near the water with good shade needs a lot less than a sunny room with a west-facing wall of glass, and an oversized system in a small house runs in short, noisy bursts that never quite dry the air.
Plenty of older CdM homes still run on the electrical service they were built with, sometimes 60 or 100 amps, sometimes a panel that has been added to over the years until every slot is taken. Adding air conditioning, a heat pump, an EV charger and perhaps an induction range all at once is a lot to ask of that. The fix is straightforward electrical work, and because we hold a C-10 electrical licence alongside the C-20, it is part of the same project and the same quote.
Routes we use, cheapest first: use spare capacity where the load calculation shows it; choose inverter equipment, which starts gently and needs a smaller breaker; add a subpanel to free up space; or upgrade the service to 200 amps, which also sets the house up for whatever comes next. Where a home still has old wiring in the walls, we can plan rewiring in stages alongside the HVAC work, so the walls are opened once.
New builds need attention too. Each condenser or heat pump needs its own dedicated circuit and a disconnect within sight of it, and a whole-home surge protector is cheap protection for the circuit boards inside modern variable-speed equipment.
It rarely gets properly cold here, but winter mornings on the bluff are damp and grey, and an older cottage with single glazing loses its heat fast. That is when the old wall and floor furnaces get switched on after a summer of sitting, and when we see pilot assemblies that will not hold, thermocouples at the end of their life and flues nobody has looked at in years. These heaters sit inside the living space, so we always test for carbon monoxide and check the venting before putting one back into service.
Newer homes usually have a forced-air furnace in the attic or a closet. The common cold-weather faults are a cracked hot-surface igniter, a flame sensor coated with residue that shuts the burners down seconds after they light, and an inducer motor that grinds before it quits. We also inspect the heat exchanger, because a crack there can let combustion gases into the airflow. A replacement furnace can be a standard unit or a 96% AFUE model; with heating needs this modest we will tell you honestly whether the higher efficiency is worth it for your house.
Heat pumps suit this climate. They handle the heating on cool mornings and the cooling on warm afternoons, and on the few genuinely cold nights an air handler fitted with heat strips covers the gap. A smart thermostat set up correctly makes sure those strips come on only when they are needed.
The alphabetical flower-named streets between Coast Highway and the ocean, plus the blocks around the village. Narrow lots, cottages being rebuilt, and some of the tightest equipment placement in the county. Ductless heads and compact outdoor units come up constantly.
Mid-century single-storey homes, many remodelled, several with low-pitched roofs and little attic space. That shapes where ducts can go, and ductless or carefully planned ducted retrofits tend to work best. Original electrical services are common in the homes that have not been fully renovated.
Bluff-top homes with big ocean views and big windows to match. Southwest-facing glass can overheat living rooms on a clear autumn afternoon even when the rest of the house is comfortable, and zoning or a dedicated ductless head for the main room fixes that without overworking the whole system. Associations here may have rules about exterior equipment.
Up the hill, larger homes from the seventies onward, mostly built with central heating and many with air conditioning from the start. Here the question is usually replacement timing: second-generation equipment nearing the end, original ducts in the attic, and a good moment to move to a heat pump or zoning for the two-storey plans.
Real ranges from our current pricing. Retrofits vary more than replacements because every attic is different, so your figure comes from a free written estimate after a visit, not a phone call.
| Work | Range | What It Usually Means in CdM |
|---|---|---|
| Diagnostic / service call | $89 – $150 | Goes toward the repair |
| Furnace igniter or flame sensor | $200 – $450 | First damp morning of the season |
| Added return air duct | $650 – $1,800 | Warm top floors in three-storey rebuilds |
| Ductless mini-split, single zone | $3,500 – $5,500 | A sunny living room or a studio over the garage |
| Multi-zone mini-split (3 heads) | $9,000 – $15,000 | Whole-cottage heating and cooling, no ducts |
| Heat pump system (ducted) | $9,000 – $16,000 | Where the attic can take ducts |
| Two-zone retrofit | $2,800 – $5,200 | Splitting floors in the hillside two-storeys |
| Furnace replacement | $4,200 – $7,800 | Standard or 96% AFUE |
| Heat strip kit installed | $650 – $1,600 | Backup heat for a heat pump air handler |
| Dedicated HVAC circuit | $450 – $1,200 | Needed for almost every first-time install |
| Subpanel | $1,500 – $3,500 | Frees space in a full original panel |
| Panel upgrade to 200A | $3,000 – $6,500 | The usual route for older cottages adding a heat pump and EV |
We accept card, check, Zelle and cash, and offer 0% APR financing on approved credit. We do not service water heaters or tankless water heaters of any brand.
Because Corona del Mar sits inside the City of Newport Beach, HVAC and electrical permits are issued by Newport Beach. A new or replacement system is inspected, and under Title 24 most installs include a duct leakage test and verification of the refrigerant charge. First-time installs in older homes also bring the electrical work under inspection, which is one more reason to have the HVAC and electrical done by one licensed contractor who answers for both.
Homes here sell for a lot, and buyers look for a permit history on any system that was clearly added later. An unpermitted retrofit is a common escrow headache in older coastal neighbourhoods, and easy to avoid.
Aerosphere Electric is licensed by the Contractors State License Board as #1108650, holding both C-20 (HVAC) and C-10 (electrical), with EPA 608 certification for refrigerant handling. Please check that at cslb.ca.gov before booking anyone, including us. Our about page explains who we are and how we work.
Around twenty minutes from Fountain Valley in normal traffic, via the 405 and Jamboree or down Coast Highway, and longer on a summer weekend when the highway through the village slows to a walk. We give you a real arrival window rather than a hopeful one. Parking in the Flower Streets is tight, so it helps to know whether there is alley access or a driveway we can use for twenty minutes while we unload. We carry the common repair parts, so most service calls close on the first visit.
There are three, and the house usually picks for you. If the attic has room and the roof pitch allows it, conventional ducted central air or a ducted heat pump works well. If there is little or no attic, a ductless mini-split with one to three indoor heads avoids ducts entirely. In between sits a small-duct, high-velocity system, which runs narrow flexible tubes through walls and ceiling cavities to small round outlets, useful where you want to keep original plaster and trim. We look at the attic, the walls and the electrical service, then quote the option that fits rather than the one we would prefer to sell.
Usually a very good one. A heat pump does both heating and cooling, and the climate here is mild enough that a modern inverter unit will handle the cold mornings comfortably without backup heat most of the time. In a cottage that currently has an old wall or floor furnace and no cooling, a heat pump replaces the furnace and adds air conditioning in one project. On damp winter mornings you will occasionally see the outdoor unit steam as it defrosts; that is normal. We confirm the electrical side at the estimate so there are no surprises later.
No. It changes the order of the work, that is all. We start with a load calculation on your existing service. Sometimes there is enough spare capacity for a modern inverter system, which draws far less at startup than older equipment. If the panel is at its limit, the next step is an upgrade to 200 amps or a subpanel, and that is work we do ourselves under our C-10 licence, coordinated with the HVAC install so you are not managing two contractors. We can also phase it, electrical first and cooling in spring, if that suits your budget.
Rarely. Three-storey homes on narrow lots stack heat at the top, and the top floor usually has the most glass and a roof deck overhead. When we investigate, the usual culprits are a single thermostat on the middle floor, return air that cannot keep up with the upper rooms, or a zone damper that was never set up properly at commissioning. Rebalancing, adding a return, or correcting the zoning often fixes it for a fraction of the cost of adding capacity. We check static pressure and room temperatures before suggesting anything.
Turn it off until someone has looked at it. A wall or floor furnace that clicks and drops out is usually a thermocouple, pilot or flame sensor issue, which is a modest repair. But these heaters are often decades old, sit inside the living space, and vent through a flue that may have deteriorated. We check the flame, the venting and the heat exchanger for cracks, and test for carbon monoxide. If it is worth fixing, we fix it. If it is not, a heat pump or a ductless unit is usually the logical replacement.
Corona del Mar is part of the City of Newport Beach, so permits for HVAC and electrical work go through Newport Beach. Replacing or adding heating and cooling equipment, or upgrading a panel, needs a permit and an inspection, and California Title 24 adds duct leakage testing and refrigerant verification on most HVAC installs. We apply under our own licence and meet the inspector. In gated communities such as Cameo Shores, the association may have its own rules on where outdoor equipment can sit, and we check those at the estimate stage.
We repair, maintain and install the major lines, including the ductless ranges that suit CdM retrofits: Mitsubishi Electric · Daikin · Carrier · Trane · Lennox · Bosch · Bryant · American Standard · Rheem · York · Goodman · Amana · brand overview
Also: mini-split installation · inverter heat pumps · heating repair · attic insulation · tune-ups. Close by: Newport Beach · Laguna Beach · Irvine · Costa Mesa.