Fast, Reliable Heat Pump & Mini Split Across Florence-Graham
Heat pump and mini split installation in Florence-Graham typically runs $3,500–$7,500, with same-day repair service available for urgent breakdowns. Most Florence-Graham homes were built in the 1940s–1960s without ductwork, so ductless mini splits and multi-zone systems are often the smartest path to modern cooling and heating.
We know Florence-Graham. We know the ZIP 90001, the post-WWII stucco bungalows on Graham Avenue, and the county permit process that every HVAC job here must navigate. Redwood Heating & Air has served this unincorporated community and surrounding South LA basin for 13 years. When your window unit dies in July or your landlord’s aging PTAC finally quits, we respond fast. Call (844) 875-9451 for a free estimate.
Why Redwood Heating & Air San Diego Is Florence-Graham’s Preferred Heat Pump & Mini Split Company
Gregory Hahn founded this company and still leads every technical decision. That matters in Florence-Graham, where HVAC work isn’t straightforward. Our 428 verified reviews averaging 4.6 stars include plenty from this ZIP — homeowners who needed a master technician, not a dispatcher sending whoever’s available.
We’re certified across nine major brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. That brand fluency counts when we’re diagnosing a mismatched system in a 1950s rental or sourcing a specific mini-split condenser for a multi-zone retrofit on Firestone Boulevard.
Response time to Florence-Graham is typically same-day for repairs, next-day for non-urgent consultations. We understand the local landscape: unincorporated status, county inspections, the urban heat island pushing temperatures past what coastal San Diego sees. We’ve coordinated with LA County-permitted electricians for panel upgrades. We’ve routed line sets through cramped attics that haven’t been touched since the Truman administration.
From a single mini-split to a full commercial system, we diagnose right the first time. No repeat visits because someone guessed at the refrigerant charge or didn’t account for the electrical load.
Our Heat Pump & Mini Split Services in Florence-Graham
Heat Pump Repair
Summer in Florence-Graham hits harder than beach-adjacent neighborhoods. The concrete and asphalt density traps heat, and when your heat pump’s reversing valve fails or your compressor won’t start, you feel it fast. We repair all nine brands we service, and we carry common parts for Florence-Graham’s most installed systems. Most heat pump repairs run $150–$650 depending on whether we’re replacing a capacitor or a compressor.

Heat Pump Installation
New heat pump installation in a Florence-Graham home means confronting reality: many bungalows here never had central air, and their electrical panels weren’t designed for a 240V heat pump circuit. We assess your panel capacity, your insulation, and your square footage before recommending equipment. If ductwork is impossible — common in 1940s floor plans — we’ll steer you toward a ductless or mini-split solution rather than force a bad fit.

Mini Split Install
This is our most requested service in Florence-Graham, and for good reason. Mini splits need no ducts. One outdoor condenser feeds one or more wall-mounted indoor heads. We install single-zone systems for additions or converted garages, and multi-zone systems for whole-home coverage in bungalows where running ductwork would mean tearing open plaster walls. Our Heat Pump & Mini Split team has completed dozens of these retrofits in ZIP 90001.
We replaced a failing 1950s window unit in a stucco bungalow on Graham Avenue with a Daikin multi-zone mini split. The home had no existing ductwork and needed a panel upgrade, so we coordinated with a county-permitted electrician. The homeowner now has zoned cooling without tearing open walls.

Mini Split Repair
Florence-Graham’s older rental stock sometimes gets quick mini-split installs from landlords cutting corners. Improper line-set routing through uninsulated walls leads to refrigerant leaks. We find the leak, repair the flare connection or replace the damaged section, and recharge to factory spec. We also see failed electronics from units installed too close to heat-radiating flat roofs — a local condition we account for on every install.

Ductless System
Ductless isn’t just mini splits. We also install and service ductless heat pumps for whole-home heating and cooling in Florence-Graham properties where traditional forced air is impossible. These systems invert efficiently even on mild winter nights, and they filter air better than window units that’ve been recycling garage dust since the Clinton administration.

Multi-Zone System
A multi-zone mini split lets you cool the living room to 72 while the bedroom stays at 78. In Florence-Graham’s dense multi-family rentals, this means individual unit control without individual meters. For homeowners, it means no more fighting over the thermostat. We size each zone independently, matching BTU load to room orientation and insulation reality — not guesswork.

What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Florence-Graham
We service your brand. That’s not a slogan; it’s a technical capability. Gregory Hahn built this company on master-technician-level diagnosis across Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. For Florence-Graham customers, this means we stock common parts locally for Lennox and Goodman mini splits, and we can source Trane and Rheem heat pump components with next-day turnaround. We’re not married to one manufacturer’s profit margins. We’re married to fixing your system correctly.
Common Heat Pump & Mini Split Problems We See in Florence-Graham Homes
- Undersized electrical panels. Original post-WWII stucco bungalows often have 60-amp or 100-amp panels with no spare breaker slots. A modern heat pump needs 240V and dedicated amperage. We see this on Graham Avenue and Firestone Boulevard regularly. The panel upgrade must happen first, and it must be permitted through LA County.
- Improper line-set routing in cramped attics. Ductless mini splits are the only viable retrofit in many 1940s–1960s homes, but running refrigerant lines through 18-inch attics with knob-and-tube wiring still present takes skill. Kinked lines leak. Leaks destroy compressors. We’ve replaced too many compressors that failed because the original installer treated a Florence-Graham attic like a Rancho Cucamonga new build.
- Emergency failures of legacy window units during heat waves. Old window units and PTACs sometimes remain because landlords avoid the county permit process. When the Santa Ana pressure builds and temperatures push past 95, these units fail catastrophically. We get the call at 6 PM on a Saturday. The tenant is desperate. The landlord is out of state. We install a proper mini split because it’s the only humane solution.
- Heat pump short-cycling from oversizing. A contractor unfamiliar with Florence-Graham’s small floor plans installs a 3-ton system in a 900-square-foot bungalow. The unit blasts cold air, shuts off, starts again, and dies in three years from compressor fatigue. We size to Manual J standards, not rule-of-thumb laziness.
Pricing for Heat Pump & Mini Split in Florence-Graham, CA
We’re upfront about numbers because you’ve already been burned by vague estimates.
| Service | Price Range in Florence-Graham |
|---|---|
| AC / Heat Pump Repair | $150–$650 |
| AC / Heat Pump Installation | $3,500–$7,500 |
| Tune-Up / Maintenance | $80–$200 |
| Mini Split Install (single-zone) | $3,500–$5,500 |
| Multi-Zone Mini Split Install | $5,500–$7,500 |
| Electrical Panel Upgrade (coordinated) | $1,200–$2,800 |
What moves you within these ranges? Single-zone versus multi-zone. Brand selection — Daikin and Mitsubishi tend toward the higher end, Goodman and Rheem toward the lower. Whether your Florence-Graham bungalow needs that panel upgrade. Whether we’re routing through an accessible crawl space or fishing lines through a plaster wall with no access.
County permit fees in unincorporated Florence-Graham run higher than in incorporated South Gate or Huntington Park, and the LA County Department of Building and Safety inspection schedule adds lead time we build into our project timeline. We handle the permit paperwork. You don’t chase county clerks.
Every estimate is free. No obligation. Call (844) 875-9451.
We Also Serve Cities Near Florence-Graham
Our service radius covers Huntington Park, Walnut Park, Willowbrook, and South Gate. If you’re near the border — say, a commercial property on Florence Avenue that technically maps to Huntington Park — we know the jurisdictional difference and permit accordingly. Same master-technician response, same 13-year track record.
Serving Florence-Graham, CA — Our Local Coverage Area
We’re based in the Florence-Graham 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 — Heat Pump & Mini Split in Florence-Graham
Florence-Graham is unincorporated, so LA County governs all building and safety permits. South Gate incorporated in 1923 and runs its own municipal permitting office with different fee schedules and typically faster turnaround. Your heat pump install in ZIP 90001 must go through the LA County Department of Building and Safety, and only county inspectors can sign off. We file this paperwork as part of our standard project management. Call (844) 875-9451 if you want us to walk you through the timeline.
Yes, and a ductless mini split is usually the best path. These systems need only a three-inch hole in the wall for refrigerant lines and power. No ducts. No tearing open your plaster. We’ve installed dozens in Florence-Graham bungalows where central air was never an option. The key is proper load calculation and clean line-set routing. Call (844) 875-9451 for a free assessment of your specific floor plan.
Often yes, in Florence-Graham’s older housing stock. Many post-WWII homes still have 60-amp or 100-amp panels with fused disconnects or no spare breakers. A heat pump requires 240V and dedicated circuit capacity. We assess your panel during our free estimate and coordinate the upgrade with a county-permitted electrician if needed. The alternative — overloading an existing panel — creates fire risk and voids equipment warranties. Call (844) 875-9451 and we’ll check your amperage.
We install and service Daikin, Goodman, Rheem, Lennox, and Trane mini splits, with Daikin and Goodman being most common for Florence-Graham residential jobs. Daikin excels at multi-zone inverter systems with quiet operation. Goodman offers strong value for single-zone cooling in rental properties. We don’t push one brand. We match equipment to your budget, your electrical capacity, and your noise tolerance. Call (844) 875-9451 to discuss options.
LA County Building and Safety typically schedules inspections within 5–10 business days for residential HVAC in unincorporated areas like Florence-Graham, compared to 2–3 days in incorporated cities with their own departments. We submit complete plans upfront to avoid revision delays. Total project timeline from signed contract to final inspection is usually 2–3 weeks for a standard mini split, including the permit wait. Call (844) 875-9451 and we’ll give you a realistic schedule for your specific job.
Ready to get out of the window-unit cycle? Call Redwood Heating & Air at (844) 875-9451 for your free Florence-Graham estimate. Gregory Hahn or one of our master-certified technicians will assess your home, explain your options, and quote honest numbers — no games, no upsell.
Written by Gregory Hahn, Owner at Redwood Heating & Air, serving Florence-Graham and the San Diego region since 2011.