Fast, Reliable Heat Pump & Mini Split Across West Hills
Heat pump and mini split installation in West Hills typically runs $3,800–$8,500 for a full system, with most repairs landing between $175–$765 and completed same day. We’re Crestview Heating & Air California, and our Heat Pump & Mini Split crew works the 91307 and 91308 zip codes weekly. Owner Marcus Feldman still manages jobs in the field, so when you call (844) 560-6978, you’re talking to someone who’ll actually show up — not a dispatch center reading from a script.
West Hills isn’t like other San Fernando Valley neighborhoods. The Simi Hills, Santa Susana Mountains, and Santa Monica Mountains converge here and block virtually all marine-layer cooling, so your system works harder than one in Canoga Park just to the east. We’ve spent 19 years learning what fails first in this heat trap and how to fix it without callbacks.
Why Crestview Heating & Air California Is West Hills’s Preferred Heat Pump & Mini Split Company
Our 4.8-star average across 250+ reviews didn’t come from coastal cities with mild summers. It came from jobs like the 1970 ranch house near Valley Circle and Kittridge, where our crew installed a multi-zone Daikin mini split system to cool a converted garage workshop. The homeowner had been running a window unit that couldn’t keep up with 108°F summer heat. We sealed the original attic ductwork from the central unit and added two wall-mounted heads, dropping the workshop temperature by 30°F and cutting the electric bill by $200/month. That’s the kind of result that gets a West Hills homeowner to leave a detailed review.
Marcus Feldman serves as both Owner and Service Manager, which means ownership-level accountability is built into daily operations. When we quote a mini split install for a hillside home off Roscoe Boulevard, he’s the one who sized the system, specified the line set length, and flagged the elevation change. No layers. No “let me check with the office.”
We carry factory-trained compatibility across nine major brands — Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard — so we’re never telling a West Hills customer “we don’t work on that.” Your system, our specialty.
From emergency calls to commercial buildouts, our range matches what West Hills actually needs: ranch homes with original 1960s ductwork, 1980s custom builds in the Santa Monica Mountain foothills, and detached workshops on acreage properties that need dedicated cooling zones.
Our Heat Pump & Mini Split Services in West Hills
Heat Pump Repair
West Hills heat pumps take a beating. Attic temperatures of 150–160°F degrade refrigerant line insulation and mastic seals on systems installed during the original Canoga Park–era construction. We see slow refrigerant leaks, failed capacitors, and compressor strain from oversized or undersized units that can’t handle 105–112°F peaks. Our repairs start with proper diagnostics — not guess-and-replace. Most heat pump repairs in West Hills fall between $175–$765.
Heat Pump Installation
Installing a heat pump in a 1960s–70s West Hills ranch almost always requires duct sealing or replacement to achieve rated efficiency. The original flex duct in these homes leaks at 25–35% on average, which means you’re paying to cool your attic. We size systems for West Hills’s actual peak loads, not textbook coastal numbers. A typical heat pump installation in West Hills runs $4,130–$8,850, including duct modifications when needed.
Mini Split Install
This is where we do our best work in West Hills. Ductless mini splits bypass failing attic ductwork entirely, and they’re ideal for converted garages, workshops, and additions where running new ducts is impractical. On acreage properties, we regularly run line sets over 100 feet to detached buildings — but we adjust refrigerant charge for elevation changes, a step missed by crews who don’t know the terrain. Multi-zone systems let you cool the workshop without cooling the whole house. Mini split installs in West Hills typically range $3,800–$7,200 depending on heads and line set complexity.
Mini Split Repair
West Hills mini splits fail differently than coastal units. The 150°F attic heat degrades line set connections over time, causing slow refrigerant leaks that show up as weak cooling or ice buildup. Oversized units short-cycle; undersized ones run continuously without catching up. We pressure-test every connection, verify charge against manufacturer specs, and check that your system was actually sized for 112°F, not 85°F. Most mini split repairs in West Hills run $175–$765.
Multi-Zone System
West Hills’s larger 1980s–1990s custom homes and acreage properties often have uneven cooling across zones due to elevation changes and solar exposure. A multi-zone mini split puts independent temperature control in each area — the main house, the guest suite, the workshop — without the energy waste of cooling empty rooms. We design these systems around how you actually live in the space, not how a floor plan looks on paper.
Ductless System
For West Hills homeowners with original ductwork that’s beyond practical repair, going ductless isn’t a compromise — it’s an upgrade. No attic heat gain through leaky ducts. No $400–$600 summer electric bills driven by cooling air that never reaches your living room. Just efficient, room-by-room comfort that matches how West Hills actually heats up.
What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
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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 West Hills
We stock parts and maintain factory training for nine major brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. For West Hills customers, that means faster turnaround when your Goodman heat pump fails on a 110°F Saturday or your Trane mini split needs a warranty compressor. We don’t special-order basic components from a warehouse two counties away. Marcus keeps common Rheem and Lennox heat pump parts on the truck because he’s seen what fails in 91307 attics and doesn’t waste a trip.
Common Heat Pump & Mini Split Problems We See in West Hills Homes
- Refrigerant line degradation from extreme attic heat. Mini split line sets routed through 150–160°F attic cavities develop slow leaks at flare connections and insulation breakdown. We pressure-test every installation and use high-temp rated insulation on West Hills jobs.
- Wrong-sized capacity for peak loads. A mini split rated for mild climates will short-cycle or fail to cool when West Hills hits 112°F. We size for actual peak demand, not average conditions, using Manual J calculations adjusted for local solar gain.
- Long line sets without proper charge adjustment. Acreage properties with detached workshops often need 100+ foot refrigerant runs. Without elevation and pressure-drop compensation, the system underperforms and the compressor fails prematurely. We calculate and weigh charge precisely for each West Hills installation.
- Original ductwork leaking 25–35% into the attic. Pre-1985 systems in West Hills ranch homes lose more cooled air through duct seams than they deliver to rooms. Before any heat pump replacement, we test and seal — or recommend going ductless if the damage is too extensive.
Pricing for Heat Pump & Mini Split in West Hills, CA
| Service | Typical Range in West Hills |
|---|---|
| Heat Pump / Mini Split Repair | $175 – $765 |
| Heat Pump Installation | $4,130 – $8,850 |
| Mini Split Install (single zone) | $3,800 – $5,400 |
| Mini Split Install (multi-zone) | $5,200 – $7,200 |
| System Tune-Up | $95 – $235 |
What moves you within these ranges? Duct condition is the big one for heat pumps — sealing or replacing 1960s flex adds labor but saves more on bills than the upgrade cost. For mini splits, line set length and number of indoor heads drive material costs. Elevation changes on hillside properties near the Santa Monica Mountain foothills can require additional refrigerant and pump-down considerations.
We don’t quote over the phone without seeing your setup. Every West Hills home has different attic conditions, electrical capacity, and cooling load. Call (844) 560-6978 for a free, on-site estimate — no obligation, no pressure.
We Also Serve Cities Near West Hills
Our service radius covers the full western San Fernando Valley and surrounding communities. We regularly run calls to Canoga Park for older tract homes with similar duct issues, Woodland Hills for mixed-era residential and light commercial, Calabasas for larger hillside properties with zoning challenges, and Chatsworth for industrial and acreage HVAC needs. Same owner-managed service, same 19 years of experience, same day response when possible.
Serving West Hills, CA — Our Local Coverage Area
We’re based in the West Hills 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 West Hills
No — not if you want rated efficiency. The original flex duct in 1960s–70s West Hills ranches leaks 25–35% on average, and 150–160°F attic heat has degraded seals and insulation for decades. We always test duct integrity first. Sometimes sealing restores enough efficiency; often partial replacement is worth more than the equipment upgrade itself. Call (844) 560-6978 and we’ll show you the actual leakage numbers from your system.
Acreage properties and detached workshops are more common here. We regularly run line sets 100+ feet to outbuildings that coastal cities don’t have. Longer runs require precise refrigerant charge adjustment and sometimes pump-up or pump-down configurations for elevation changes. It’s standard work for us, but not for crews who only see compact suburban lots.
Yes, if you’re running a window unit or portable AC that can’t keep up with 108°F+ days. A dedicated zone with proper sizing and line set engineering will drop temperatures 25–30°F and typically cut electric costs $150–$300 monthly versus inefficient alternatives. We size the compressor for your actual peak load, not a mild-climate chart.
Low refrigerant charge from a slow leak is the most common cause. West Hills’s extreme attic heat degrades line set connections and insulation, causing leaks that reduce pressure and trigger ice buildup on the coil. Restricted airflow from clogged filters — accelerated by Santa Ana wind events funneling particulates through the Santa Susana Pass — is another frequent culprit. We’ll pressure-test, verify charge, and check your filter schedule against actual local conditions.
Yes. West Hills is within Los Angeles city limits, so LADBS permit requirements apply to most heat pump and mini split installations. We handle permit submission and inspection scheduling as part of our install package. The process adds a few days but ensures your system meets current energy code and doesn’t create issues at resale. We’ve worked with LADBS inspectors on West Hills jobs for years and know what they flag.
Ready to fix the cooling in your West Hills home or workshop? Call Crestview Heating & Air California at (844) 560-6978 for a free estimate. Marcus Feldman or a member of our owner-managed crew will come out, assess your attic conditions or line set path, and give you real numbers — not a sales pitch.
Written by Marcus Feldman, Owner at Crestview Heating & Air California, serving West Hills and the San Fernando Valley since 2006.