AC repair
Furnace & heating
Heat pumps
Ductless mini splits
Carrier
Trane
GoodmanSeasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Get your free estimateFast, Reliable AC Repair Across Pleasant Hill
When your air conditioner quits during a Diablo Valley heat wave, you need a repair company that knows Pleasant Hill’s older housing stock and gets there fast. AC repair in Pleasant Hill typically runs $150 – $650, and most jobs are completed in a single visit. Our AC Repair team works on the ranch homes and split-levels that fill the neighborhoods east of I-680, where undersized ductwork and aging condensers create problems newer suburbs never see. Call (559) 245-8807 and a live person answers, day or night.
Why Brandt HVAC Co San Francisco Is Pleasant Hill’s Preferred AC Repair Company
We fix more than condensing units. We fix the duct pressure problems, slab-run condensation issues, and capacitor failures that show up repeatedly in 1950s and 60s ranch homes across Pleasant Hill. Devin Marlowe, our owner, built this company on a simple rule: every technician who walks through your door is background-checked, uniformed, and introduced to you by name and photo before arrival. That’s the Threshold Verified standard, and it matters when you’re opening your door to a stranger.
Pleasant Hill homeowners call us because we answer the phone with a real person, not a menu tree. We arrive with a written price before any work starts. No exceptions. Every repair includes a written guarantee, and if it fails within the guarantee period, we return at no charge under our 365-Day Done Right Promise. That’s how we’ve built our reputation in neighborhoods like Gregory Gardens, Poet’s Corner, and the streets around Pleasant Hill Middle School.
Dispatch for Pleasant Hill is coordinated from our San Francisco Bay Area office, with crews serving the city locally. When your AC dies on a 98°F afternoon in late August, you do not want to wait on a callback. You want a team that already knows your street, your home’s vintage, and the ductwork hiding in your crawlspace.
Styles & brands we work with
AC Service in Pleasant Hill
AC Service in Pleasant Hill means more than checking refrigerant and swapping a filter. On the 1950s-60s ranch homes that dominate this city, proper service work starts with measuring static pressure in original round metal ducts that were sized for heat only. When that pressure reads high, the evaporator coil freezes and the compressor works itself to death. We diagnose that on the first visit.
Most AC service calls in Pleasant Hill run $150 – $650, depending on what we find. A simple capacitor replacement sits at the low end. A compressor repair lands at the high end. Before we touch anything, you’ll have a written price in front of you so there are no surprises when the invoice arrives.
Refrigerant Recharge and Leak Checks
A refrigerant recharge means refilling the fluid that moves heat out of your home. In Pleasant Hill’s inland climate, where summer highs routinely sit in the 90s, a system low on refrigerant will run constantly and still leave your house warm. We do not just top off refrigerant blindly. We pressure-test the system to find where it leaked, because recharging a leaking system is just buying time.
Thermostat and Controls Repair
On older Pleasant Hill homes, thermostats are often original mercury-bulb models or early digital units that drift badly. We replace and recalibrate thermostats, and we check the control wiring between the thermostat, air handler, and condenser. A miswired thermostat in a 1960s split-level can cause the same symptoms as a failing compressor, and it costs a lot less to fix.
AC Unit Repair in Pleasant Hill
AC Unit Repair in Pleasant Hill frequently starts at the condenser but ends in the ducts. That is the reality of a city where most homes were built between 1950 and 1975 with heating-only round metal ductwork. We replace capacitors, fan motors, contactors, and compressors, but we always check what that unit is pushing against before calling the job done.
AC unit repair in Pleasant Hill runs $150 – $650. A weak capacitor on a condenser east of I-680 is one of the most common failures we see, often caused by dirty coils and poor airflow from dusty Diablo Valley lots. We fix the part and the cause.
Capacitor Replacement
A capacitor is a small cylinder that gives your compressor and fan motor the electrical kick they need to start. When it fails, the unit hums but won’t turn, or short-cycles. In Pleasant Hill’s dust-heavy summer air, capacitors fail faster than in coastal cities. We stock replacements for all major brands, so we usually finish this repair in one trip.
Compressor and Fan Motor Repair
When a compressor or condenser fan motor fails, you hear it. Loud buzzing, rattling, or a completely dead unit. On older Pleasant Hill systems, we weigh the cost of a compressor replacement against the age of the unit and the condition of the duct system before recommending repair or replacement. You get that recommendation in writing, with a price, before any work starts.
Trusted Brands We Service in Pleasant Hill
We service and repair Trane, Lennox, Goodman, and Rheem systems, along with the other major residential brands found in Pleasant Hill homes. Because so many homes here still run the original builder-grade Goodman or Rheem condensers installed during the first AC retrofit wave, we keep common capacitors, contactors, and fan motor assemblies stocked for fast turnaround. You won’t wait three days for a part that a warehouse across the Bay has to ship. That matters when it’s 95°F outside and your family is sleeping in the living room.
See the difference
Before
After
Before
After
Before
AfterCommon AC Repair Problems We See in Pleasant Hill Homes
- Frozen evaporator coils on retrofitted ranches. Homes east of I-680 with original 14-inch round ducts often show high static pressure, which drops coil temperature below freezing. The fix is duct correction, not just more refrigerant.
- Rusted blower motors from slab-duct condensation. Pleasant Hill’s fog-free summer heat waves force AC systems to run hard, and original slab-duct runs hold moisture against the blower assembly. We see motor failures that look like age but are actually rust.
- Dust-loaded condenser coils on exposed Diablo Valley lots. Homes with no wind shelter, especially those on open lots near Paso Nogal Park or along Taylor Boulevard, collect dust and cottonwood in condenser fins. That chokes airflow and kills capacitors fast.
- Short-cycling compressors on undersized duct systems. When a newer 2.5-ton unit is bolted onto ductwork built for a 1962 gravity furnace, the compressor trips its high-limit repeatedly. The unit isn’t defective. The duct system is asking for more than it can deliver.
Pricing for AC Repair in Pleasant Hill, CA
Here’s what AC repair actually costs in Pleasant Hill, based on the work we do most often in this city:
| Service | Price Range |
|---|---|
| AC Repair diagnostic | $150 – $650 |
| AC Unit Repair | $150 – $650 |
What moves the price is the part and the labor required. A capacitor replacement at the low end. A compressor at the high end. Duct pressure correction, common on Pleasant Hill ranches, adds work but stops the freeze-and-fail cycle that keeps costing you money. Every quote is written, and you approve it before we start. Call (559) 245-8807 for a free estimate.
We Also Serve Cities Near Pleasant Hill
Our crews work throughout central Contra Costa County. In addition to AC Repair in Pleasant Hill, we serve homeowners in Martinez, Walnut Creek, Danville, and Berkeley. If you live in a neighboring city and your AC is down, call us at (559) 245-8807. We’ll get a tech out to you just as fast.
Serving Pleasant Hill, CA - Our Local Coverage Area
We’re based in the Pleasant Hill area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About AC Repair in Pleasant Hill
Because the problem is usually static pressure, not refrigerant. Original round metal ducts from the 1950s-60s were sized for heating only, and when a modern AC unit pushes air through them, the pressure climbs high enough to freeze the evaporator coil. We measure static pressure on every service call and correct duct restrictions before recommending anything else. Call (559) 245-8807 and we’ll check yours.
Yes, but Pleasant Hill’s building permit process will require you to bring the entire duct system up to current Title 24 energy code before the city signs off. That means the old asbestos-wrapped gravity ducts come out, and properly sized insulated ducts go in. It’s a bigger job than a simple condenser swap, but it’s the only way to get a permit and a system that actually cools. We walk you through the whole scope before anything starts.
Once a year, ideally in spring before the summer heat hits. Pleasant Hill’s inland Diablo Valley location means hot, dust-heavy summers with no coastal fog to wash condenser coils clean. Annual service keeps coils clear, checks capacitor health, and catches wiring issues before they become a July breakdown. A tune-up runs $80 – $200, which is a lot less than an emergency repair.
That depends on square footage, insulation, window exposure, and duct condition, but most 1960s split-levels in Pleasant Hill need between 2.5 and 3.5 tons for cooling. Heat pump sizing matters even more, since those units handle heating too. We do a proper load calculation, not a rule-of-thumb guess, because an oversized unit short-cycles and an undersized one never cools the upstairs. Call (559) 245-8807 for an honest sizing visit.
Because a new high-efficiency unit cannot overcome old undersized ductwork, a weak return air path, or a leaking slab-duct run. We see this all the time on 1950s ranches where the new condenser was sized correctly but the duct system was never touched. The unit runs nonstop trying to push air through a straw. The fix is duct correction, not a bigger unit. Schedule a diagnostic and we’ll show you the static pressure numbers with our gauges.
Call (559) 245-8807 and a live person answers, 24 hours a day, 7 days a week. You’ll get a written price before any work starts, a background-checked technician introduced to you by name before arrival, and a repair guaranteed in writing. If it fails within the guarantee period, we come back free under our 365-Day Done Right Promise. That’s how we work in Pleasant Hill.
Written by Devin Marlowe, Owner at Brandt HVAC Co San Francisco, serving Pleasant Hill and the surrounding Diablo Valley.