Fast, Reliable Air Quality & Ventilation Across Calabasas
Whole-home air quality and ventilation in Calabasas runs $80 for a MERV 13 filter upgrade up to $7,500 for a full ERV/HRV system install, with most projects completed in one to two days. We serve homes throughout the 91302 and 91372 ZIP codes, from original 1980s builds in Mulwood to post-Woolsey rebuilds in The Oaks, and we know the specific venting rules that apply here and nowhere else in LA County. If you’re dealing with Santa Ana smoke infiltration, humidity imbalance in a vaulted great room, or a plan-check holdup on your new custom home, call us at (855) 467-1888 for a free estimate.
Why Stonegate Heating & Air California Is Calabasas’s Preferred Air Quality & Ventilation Company
We’ve spent 16 years building a 4.7-star reputation across nearly 500 verified reviews, and that accountability travels with us to every Calabasas job. Owner Jason Trent works as active Field Supervisor, not from a desk — he supervises installations personally, including the multi-zone systems that Calabasas’s 3,500–8,000 sq ft homes demand.
Calabasas homeowners aren’t looking for a rotating cast of subcontractors. They want the same crew who understands that a carriage-house garage in The Oaks has finished wood that can’t take a sloppy duct penetration, or that a Las Virgenes Road rebuild needs Chapter 7A ember-resistant vents that generic caps won’t satisfy. We’ve handled both.
Our response time to Calabasas typically runs same-day or next-day for standard calls, and we stock parts for nine major brands — Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard — so we’re not ordering filters or ERV cores while your permit clock runs.
Our Air Quality & Ventilation Services in Calabasas
Air Filtration
Calabasas sits in a primary Santa Ana wind corridor. During offshore events, wildfire smoke spikes while humidity drops into the single digits, and standard 1-inch fiberglass filters won’t stop the particulate that makes it through. We size MERV 13 or higher filtration to your system’s static pressure budget, with media cabinets that fit the extended plenum depths common in Calabasas’s larger air handlers. A typical MERV 13 filter upgrade in Calabasas runs $80–$200, including installation and airflow verification.
Dehumidifier Install
Those same Santa Ana winds can swing indoor relative humidity from 15% to 65% in a week, and Calabasas’s oversized great rooms make it worse — more volume, more thermal mass, more moisture load from landscaping irrigation that seeps through slab-on-grade construction. We install whole-home dehumidifiers tied to your central duct system, sized with proper Manual J load calculations that account for vaulted ceilings, not just square footage. Whole-home dehumidifier installation in Calabasas typically costs $150–$700.
ERV/HRV System
Every new or rebuilt custom home in Calabasas’s Very High Fire Hazard Severity Zone faces a dual burden: California Title 24 energy compliance and CBC Chapter 7A ember-resistant vent requirements. ERV and HRV systems recover energy from exhaust air while meeting fresh-air mandates, but the vent terminations must use listed, mesh-screened products that plan-check reviewers at LA County Building and Safety enforce strictly. We’ve seen techs from lower fire-hazard zones submit generic caps and stall permits for weeks. ERV/HRV system installation in Calabasas runs $3,500–$7,500 depending on home size and zoning complexity.
UV Air Purifier
Calabasas’s sheltered valley traps heat and organic particulate — pollen from the Santa Monica Mountains, dust from construction on ongoing rebuilds, mold spores in oversized HVAC systems that short-cycle. UV-C lamps mounted at the coil and in the return ductwork keep biological growth from colonizing wet evaporator surfaces, especially important in the high-static systems that serve multi-story Calabasas homes. We integrate UV systems with smart-home controls so you get lamp-life alerts, not guesswork.
What happens when you call
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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 Calabasas
We carry factory training and field experience across Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard — nine brands, one team, no “we don’t service that” dead ends. For Calabasas customers, that means we stock MERV 13 media, ERV cores, and UV lamp assemblies locally rather than ordering from a regional warehouse. We recently sourced a Bryant Preferred Series ERV core for a Las Flores-area job same-day, avoiding a two-week delay that would have pushed past the homeowner’s occupancy deadline. Whatever brand drives your system, we have the parts and the protocol to match it.
Common Air Quality & Ventilation Problems We See in Calabasas Homes
- Ember-resistant vents failing plan check. Contractors unfamiliar with Calabasas’s Very High Fire Hazard Severity Zone install standard vent caps on combustion-air intakes and exhaust terminations. LA County Building and Safety rejects them. The fix requires listed, mesh-screened products with proper documentation — a detail we verify before rough-in, not after the inspector flags it.
- Oversized ERV/HRV units short-cycling in vaulted great rooms. A unit rated for 4,000 sq ft won’t dehumidify a 3,500 sq ft home with 20-foot ceilings and a two-story open stairwell. We see this in original 1990s builds near Mulwood and in newer construction above the 101. Proper Manual J load calculations account for volume, not just floor area.
- Smoke infiltration during Santa Ana events. Standard ventilation intakes without fire-rated dampers or MERV 13 filtration pull outdoor particulate straight into living spaces. We’ve tracked PM2.5 spikes inside Calabasas homes at triple outdoor levels because the intake location and filtration were never engineered for fire-season conditions.
- Humidity stratification in multi-zone systems. Calabasas’s custom homes often run three or four HVAC zones with independent humidistats. Without central coordination, the master suite dehumidifier fights the living room humidifier, and energy bills climb while comfort drops. We integrate zone control with whole-home dehumidification for single-point management.
Pricing for Air Quality & Ventilation in Calabasas, CA
Calabasas’s high-end housing stock and dual regulatory burden affect what you’ll pay for air quality work. Custom finishes, extended duct runs, and Chapter 7A venting requirements add material and labor compared to standard tract construction in Woodland Hills or West Hills. Here’s what we typically see:
| Service | Typical Range in Calabasas |
|---|---|
| Air Filtration (MERV 13 filter upgrade) | $80–$200 |
| Dehumidifier Install (whole-home) | $150–$700 |
| ERV/HRV System Install | $3,500–$7,500 |
Factors that move you within these ranges: home size and zone count, existing ductwork condition, smart-home integration requirements, and whether Chapter 7A venting needs retrofit or is already specified in new construction plans. We don’t quote over a vague description — every estimate is free, on-site, and itemized. Call (855) 467-1888 to schedule.
We Also Serve Cities Near Calabasas
Our Air Quality & Ventilation team covers Woodland Hills, West Hills, Las Flores, and Topanga with the same owner-supervised service. Each area has its own building department quirks and climate patterns — Woodland Hills shares Calabasas’s heat but not its fire-zone venting rules; Topanga’s coastal influence changes humidity calculations entirely. We adjust for each.
Serving Calabasas, CA — Our Local Coverage Area
We’re based in the Calabasas 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 — Air Quality & Ventilation in Calabasas
Calabasas sits entirely within a Very High Fire Hazard Severity Zone, so CBC Chapter 7A requires listed, mesh-screened ember-resistant vents on all combustion-air intakes and exhaust terminations. Standard vent caps don’t carry the required listing and will fail inspection. We specify compliant products on every Calabasas submittal to avoid permit delays. Call (855) 467-1888 and we’ll review your plans before rough-in.
A MERV 13 media cabinet paired with a UV-C lamp at the coil handles both particulate and biological growth, which is critical during Santa Ana wind events when smoke and pollen load spikes simultaneously. For homes with smart-home integration, we recommend a Carrier Infinity or Bryant Evolution control system that reports filter life and air quality metrics to your phone. We sized exactly this setup for a 5,500 sq ft post-Woolsey rebuild in The Oaks, threading ductwork through the custom carriage-house garage to protect the wood finishes and pairing it with voice-controlled thermostat integration.
Yes, but it requires proper Manual J load calculations that account for air volume, not just square footage, and a dehumidifier or ERV sized to that actual load. We specify variable-speed blowers and insulated ductwork to keep operation below 55 dB — critical in homes where the great room opens directly to sleeping quarters. Call for a free assessment of your specific layout.
California Title 24 requires mechanical fresh-air ventilation in new construction, and Calabasas’s climate favors ERVs — they transfer both heat and moisture between incoming and outgoing air streams, which helps during hot, dry Santa Ana events and cooler winter nights. HRVs only transfer heat and can over-dry indoor air in Calabasas’s low-humidity conditions. We run the load calculations to confirm, but ERV is typically the right starting point for this valley.
We route ductwork through adjacent wall cavities or soffits rather than penetrating the door itself, preserving the finish and hardware warranty. In The Oaks rebuild we referenced, the homeowner’s carriage-house doors had custom wood panels and heavy iron hardware that couldn’t take a standard wall penetration. Our crew ran ERV supply and return through the side-wall framing, insulated for sound, and terminated at ceiling diffusers that matched the home’s architectural details. Every integration is custom to the door and the home.
Written by Jason Trent, Owner and Field Supervisor at Stonegate Heating & Air California, serving Calabasas and surrounding communities since 2008.