Seasonal 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.
Fast, Reliable Heat Pump Installation Across South San Francisco
Heat pump installation in South San Francisco runs $4,130 to $8,850 for a full system with load calculation and SEER2-rated equipment, with most homes falling in the $5,500 to $7,200 range. That’s the honest number before anyone steps foot in your house. We’re Dalton Heating & Air, and we serve South San Francisco homes from the bayside flats off El Camino Real up through Westborough and Terrabay, so your crew already knows the housing stock, the fog patterns, and what a marine-layer morning does to HVAC equipment. If you need our AC Repair in South San Francisco, we handle that too. Call (361) 306-9515 for a free estimate with a written price before any work begins.
Why Dalton Heating & Air Is South San Francisco’s Preferred Heat Pump Installation Company
South San Francisco homeowners call us because we show up inside the stated window, put the price in writing before we touch anything, and stand behind the work for a full year. That’s The Garrison Standard, and it’s been company policy since 2003. Not an upgrade, not a pitch. Every job, every time.
Our technicians are background-checked, uniformed, and factory-trained on Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. When you schedule with us, you know who’s coming before they arrive. No mystery subcontractors, no “the guy will call you back.” A live person answers the phone 24/7 at (361) 306-9515.
We also know South San Francisco’s housing stock: 1950s ranches off West Orange Avenue, Eichler-inspired builds in Westborough, newer construction up the hill in Terrabay. Each one has different ductwork, different electrical panels, different sizing demands. Crews that treat every house the same get heat pumps wrong South San Francisco. We don’t. Our Heat Pump Installation team runs a Manual J load calculation on every install, not a guess based on square footage. That’s the difference between a system that holds 68°F on a foggy January morning and one that leans on aux heat all winter.
Mini Split Installation in South San Francisco
Mini Split Installation in South San Francisco is often the right move for homes with no existing ductwork, especially the many older ranch and split-level homes in the Westborough and Parkway Heights neighborhoods. A ductless mini split lets you heat and cool individual rooms or zones without tearing open walls to run ducts. We’ve installed them in garages converted to home offices, add-on bedrooms, and whole-house retrofits where ductwork was never part of the original build.
What you’ll pay depends on the number of indoor heads and the outdoor condenser size, but a single-zone mini split in South San Francisco typically lands in the $4,130 to $6,500 range installed with a load calculation and SEER2-rated equipment. Multi-zone systems run higher. The price includes the outdoor unit, indoor head, line set, electrical, and a written guarantee on the work.
When Ductless Makes Sense Here
South San Francisco’s fog belt means you don’t need aggressive cooling capacity, but you do need a system that heats efficiently on damp, 45°F mornings. A properly sized cold-climate mini split handles that without firing up resistance heat strips. We see too many oversized units in this city that short-cycle, never dehumidify properly, and wear out early. The fix is a load calculation, not a bigger nameplate.
Zoned Comfort Without Ducts
Mini splits give you room-by-room control, which matters in South San Francisco homes where one side of the house gets afternoon sun off the bay and the other stays shaded. You’re not heating or cooling empty rooms, and you’re not fighting thermostat wars. Each zone runs independently, which shows up directly on your PG&E bill.
Heat Pump Maintenance in South San Francisco
Heat Pump Maintenance in South San Francisco is a wet-weather discipline, not a spring-and-fall afterthought. Our marine layer pushes salt air and persistent damp against outdoor coils, and we find corrosion on condenser fins and evaporator coils in South San Francisco more than anywhere else on the Peninsula. A seasonal tune-up runs $95 to $235 and includes a refrigerant charge check, component testing, condensate drain clearing, and a written report of what we found.
Here’s what we see when we skip maintenance in this city: reversing valves that never fully switch because corrosion has eaten the contacts, defrost boards that fail on the first cold morning, and blower motors cycling constantly because a dirty coil forced the system to work harder. None of these announce themselves until you need heat. Then it’s a repair call instead of a tune-up.
What We Check During a Tune-Up
Every maintenance visit includes checking refrigerant charge against manufacturer spec, testing the reversing valve operation in both modes, inspecting and cleaning the outdoor coil, checking electrical connections for corrosion, and verifying the defrost cycle actually engages. If the unit is low on charge, we find the leak before we top it off. Adding refrigerant to a leaking system is throwing money away.
Why the Guarantee Matters
Every maintenance visit and every repair from Dalton Heating & Air includes a written guarantee for a full year. If the repair doesn’t hold or the system acts up again within 365 days, we return at no charge. That’s the 365-Day Done Right Promise, and it’s non-negotiable under The Garrison Code. You get it in writing, on every job, in South San Francisco.
Trusted Brands We Service in South San Francisco
We’re factory-trained on nine major residential HVAC brands, and in South San Francisco we most often install and service Trane, Lennox, and Rheem heat pumps. Parts availability matters when your heat goes out on a cold, foggy morning in the Westborough hills, so we keep common components stocked for these brands and can source others overnight from our Bay Area supply chain. You’ll never wait a week for a capacitor or a defrost board while the house gets cold. We also work on Goodman and most other brands already in your home, so if you have an aging unit and want a second opinion before replacing it, we’ll give you one without the sales pitch.
Common Heat Pump Installation Problems We See in South San Francisco Homes
- Oversized systems from inland design temps. A heat pump sized for San Jose or Livermore cooling loads short-cycles in South San Francisco’s 60-degree summers, never fully dehumidifies, and the compressor wears out early while the blower motor cycles constantly. The fix is a Manual J load calculation using South San Francisco’s actual climate data.
- Reversing valve and defrost board failures. These only surface on South San Francisco’s cool, damp mornings when the system first demands real heat. Homeowners assume everything’s fine until January, then the outdoor coil ices up and the aux heat strips run nonstop. We catch these during fall maintenance before they strand you.
- Corroded coils from marine-layer moisture. Ducts and air handlers in unconditioned crawlspaces or garages see persistent dampness from the fog belt. Condenser and evaporator coil fins corrode, and efficiency drops below the rated SEER2. You’re paying for efficiency that’s no longer there.
- Mismatched outdoor and indoor units. Replacing just the outdoor unit and leaving a 15-year-old air handler in place destroys efficiency and can void warranties. We see this constantly in South San Francisco homes where a previous contractor cut corners. A matched system is the only way to hit the SEER2 numbers on the label.
Pricing for Heat Pump Installation in South San Francisco, CA
Here’s the honest cost breakdown for South San Francisco, CA. These are the numbers we quote, in writing, before any work starts:
| Service | Price Range |
|---|---|
| AC Repair (capacitor, refrigerant charge, electrical diagnostics) | $175 – $765 |
| Furnace Repair (heat exchanger, blower motor, thermostat calibration) | $175 – $825 |
| AC Installation (heat pump installation with load calculation, SEER2-rated equipment) | $4,130 – $8,850 |
| Tune-Up (seasonal heat pump maintenance, refrigerant charge check, component testing) | $95 – $235 |
What moves your install price within that range: whether you have existing ductwork or need a mini split, the size of the system your load calculation requires, the SEER2 rating you choose, and whether we’re replacing an old unit or installing from scratch. You get a free estimate with a written, fixed price. That price does not change at the door. Call (361) 306-9515 to schedule yours.
We Also Serve Cities Near South San Francisco
Our crews serve the entire upper Peninsula. In addition to South San Francisco, we handle heat pump installation in Brisbane, Daly City, San Bruno, and Millbrae. Same written pricing, same 365-day guarantee, same crews who know the bay weather patterns. If you’re in a neighboring city and need heat pump work, call (361) 306-9515.
Serving South San Francisco, CA - Our Local Coverage Area
We’re based in the South San Francisco 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 Heat Pump Installation in South San Francisco
Your heat pump ices up on cool South San Francisco mornings because the outdoor coil drops below freezing while pulling heat from damp, 45°F air, and either the defrost cycle isn’t engaging or the system is low on refrigerant. The marine layer here delivers exactly the conditions that expose weak reversing valves and failing defrost boards. A tune-up with a refrigerant charge check will identify the cause. Call (361) 306-9515 to schedule one, and we’ll write up exactly what we find.
Yes, a load calculation is mandatory for a heat pump in South San Francisco because the city’s heating-dominated coastal climate is different from inland design conditions that most contractors default to. Without one, you get an oversized system that short-cycles, never dehumidifies, and wears out early while your winter electric bill climbs. We run a Manual J on every single install, no exceptions. Call (361) 306-9515 for a free estimate that includes it.
SEER2 is the current federal efficiency rating for heat pumps, and in South San Francisco a higher SEER2 number means lower year-round electric bills because you’re heating more than cooling. A unit rated at 15 SEER2 versus 18 SEER2 can save a typical South San Francisco home $200 to $400 a year on PG&E, depending on your home’s insulation and duct condition. We’ll show you the numbers for your actual house before you decide. Call (361) 306-9515.
Schedule heat pump maintenance twice a year in South San Francisco’s marine layer: once in spring before the cooling season and once in fall before the heating season. The salt air and persistent damp corrode coils and electrical connections faster here than inland, so skipping a season is how you end up with a reversing valve failure on the first cold morning. A seasonal tune-up runs $95 to $235. Call (361) 306-9515 to get on the schedule.
Technically you can, but you shouldn’t. Replacing just the outdoor heat pump unit without a matching indoor air handler throws away most of the efficiency you’re paying for and can void the manufacturer’s warranty. We see mismatched systems in South San Francisco homes all the time, usually from a previous contractor trying to hit a lower price. A matched system is the only way to get the SEER2 performance on the label. For an honest repair-versus-replace assessment, call (361) 306-9515.
A Word on How We Work in South San Francisco
We were called to a 1950s ranch off West Orange Avenue in South San Francisco where a 2008 Carrier heat pump was icing up on cool mornings. Our tech found a weak capacitor, low refrigerant charge, and a reversing valve that never fully switched over. After running a load calculation, we installed a matched Daikin variable-speed heat pump sized for the home’s winter load, dialed in static pressure and airflow, and the homeowner saw their January electric bill drop while the house held steady at 68°F. That’s the standard we hold on every job in this city. Marco Benitez, our lead here, doesn’t sign off on anything less.
Call Dalton Heating & Air for Heat Pump Installation in South San Francisco
If you’re replacing an old heat pump in South San Francisco, or adding one to a home that’s never had proper heating, call (361) 306-9515. You’ll get a free estimate with a written price, a load calculation, and a straight answer about whether repair or replacement is the right call for your home. We show up inside the window, do the job by the book, leave the site clean, and stand behind the work for a full year. That’s The Garrison Standard, and it’s how we’ve done business since 2003.
Written by Marco Benitez, Owner at Dalton Heating & Air, serving South San Francisco and the upper Peninsula.







Before
After
Before
After
Before
After