Fast, Reliable Air Quality & Ventilation Across Ukiah
Whole-house ventilation and air quality upgrades in Ukiah typically run $150–$700 for ERV/HRV labor and $150–$650 for bathroom exhaust fan replacements, with most projects completed in one to two days. We’re Crestview Heating & Air California, and our Air Quality & Ventilation team makes the drive up Highway 101 from San Jose to serve Ukiah homeowners who’ve been told their older homes can’t accommodate modern air systems. Call (844) 560-6978 for a free estimate — we’ll look at your actual house, not make guesses over the phone.
Ukiah’s a different market than the Bay Area. The valley heat, the propane heating setups, the 1920s bungalows with no attic space — we’ve worked through all of it. Marcus Feldman, our owner and Service Manager, has spent 19 years in HVAC and still specs jobs personally when the house has real constraints.
Why Crestview Heating & Air California Is Ukiah’s Preferred Air Quality & Ventilation Company
Our 4.8-star average across 250+ reviews didn’t come from easy jobs in new construction. It came from figuring out ventilation for houses that were never designed for it. Ukiah customers specifically mention our willingness to crawl through tight attics and work around existing propane systems — the kind of project that bigger shops in Santa Rosa turn down.
Response time to Ukiah runs same-day to next-day depending on season. Summer heat waves stack the schedule, but we prioritize ERV and ventilation calls when indoor air quality becomes a health issue, especially for families with respiratory conditions.
What separates us from franchise outfits is simple: owner-managed, not outsourced. Marcus Feldman reviews every Ukiah quote before it goes out. When your 1940s ranch on South State Street needs an ERV retrofitted around a propane furnace, he’s the one making sure the combustion air math works.
Our Air Quality & Ventilation Services in Ukiah
ERV/HRV System Installation
In Ukiah, where older homes commonly lack ductwork, whole-house ventilation upgrades often must coexist with propane-fired heating systems — requiring ERV/HRV installs that are compatible with propane combustion venting, a scenario rarely encountered by HVAC techs in PG&E-gas-dominated markets like Santa Rosa. We size these systems for Ukiah’s thermal basin climate, where summer highs crack 100°F and winter lows hit genuine freeze. A properly balanced ERV recovers heat while exchanging stale indoor air, critical in tight older homes that were never meant to be sealed up tight.
We recently retrofitted an ERV system into a 1920s Craftsman bungalow on Oak Street, where the homeowner’s propane furnace was the only heat source. Our crew had to route fresh-air intake away from the furnace exhaust vent and install a dedicated 120V circuit for the unit — all while working in a cramped attic with 30-inch rafters. That job took two days. Most ERV installs in Ukiah run $150–$700 in labor, equipment separate.

Ventilation Installation & Upgrades
Ukiah’s housing stock — Craftsman bungalows downtown, post-war ranches on the valley floor, Victorians near the courthouse — presents real challenges for adding ventilation. Original plaster-and-lath walls prevent easy duct runs. Attics in pre-1950 homes often have clearances too tight for standard flex duct. We’ve developed methods for routing ventilation through closets, bulkheads, and exterior soffits when the direct path doesn’t exist.
Bathroom exhaust fan replacement, a common call in Ukiah’s older homes, runs $150–$650 depending on whether we can use the existing electrical and duct path or need to cut new holes.

Air Filtration Systems
The Ukiah Valley’s wildfire exposure has changed how we think about filtration. PG&E’s PSPS shutoffs push people to generators and propane heat, both of which affect indoor particulate loads. We install MERV 13+ whole-house filters on existing forced-air systems, and standalone HEPA units for homes without ductwork. For Ukiah’s smoke season, filtration isn’t optional — it’s the difference between staying inside comfortably and evacuating to a hotel.

UV Air Purifier Installation
UV-C systems mount inside ductwork or work as standalone units to neutralize mold, bacteria, and viruses. In Ukiah’s older homes with chronic humidity issues — common in unvented bathrooms and kitchens with plaster walls — UV helps control what’s growing in the air. During wildfire season, UV doesn’t remove smoke particles (that’s filtration), but it does address the microbial load that spikes when windows stay shut for days.

Humidifier & Dehumidifier Installation
Ukiah’s 40-degree summer day-night temperature swings create condensation problems in poorly ventilated homes. Winter rains add moisture to already-tight houses. We install whole-house dehumidifiers tied to existing ductwork, or standalone units for homes without central air. Proper sizing matters: an 1,800 square foot Ukiah ranch with a crawl space needs different capacity than the same footprint on a slab.

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 Ukiah
We service and install equipment from Trane, Lennox, Goodman, and Rheem — plus five other major brands — so Ukiah homeowners aren’t stuck when their existing system needs a ventilation add-on. We stock common ERV cores, bath fan motors, and UV lamps, which means faster turnaround on repairs. For specialty propane-compatible equipment common in outlying Mendocino County, we source through our distributor network with typical lead times of 3–5 business days. Your system, our specialty — that’s not a slogan, it’s why we carry the parts.
Common Air Quality & Ventilation Problems We See in Ukiah Homes
- Plaster walls block duct runs. In Ukiah’s older Victorian homes, original plaster-and-lath walls prevent easy duct runs for ventilation upgrades, leading to indoor humidity buildup and mold in unvented bathrooms and kitchens. We solve this with surface-mounted duct systems, energy recovery ventilators with dedicated wall penetrations, or targeted dehumidification.
- Propane furnace backdraft risk. Propane-fired furnaces in outlying Mendocino County homes often lack combustion air intakes, and adding an ERV without proper balancing can back-draft exhaust gases into living spaces. Our techs test combustion appliance zones before and after any ventilation install — this isn’t optional, it’s safety-critical work that requires training most general handymen don’t have.
- PSPS shutoff air quality collapse. During PG&E PSPS shutoffs, battery-backup ERV systems without proper integration can fail to cycle stale air, causing CO buildup from backup generators. We spec generator-compatible ventilation and CO detection as part of any backup-power consultation.
- No existing ductwork for whole-house solutions. The large share of Ukiah housing built without central AC means we’re often starting from scratch. Mini-split ductless systems with built-in air filtration, or dedicated ventilation duct runs separate from heating/cooling, are typical paths we recommend.
Pricing for Air Quality & Ventilation in Ukiah, CA
| Service | Typical Range in Ukiah |
|---|---|
| ERV/HRV install labor only (no equipment) | $150–$700 |
| Ventilation fan replacement (bathroom exhaust) | $150–$650 |
| Whole-house air filtration system | $450–$1,850 |
| UV air purifier installation | $380–$1,200 |
| Standalone dehumidifier (installed) | $650–$1,450 |
| Humidifier add-on to existing furnace | $320–$890 |
What moves these numbers? Attic access, electrical upgrades, and whether your home runs propane or electric. A straightforward bath fan swap in a 1970s ranch with good attic clearance hits the low end. An ERV in a 1920s Craftsman with knob-and-tube wiring and a propane furnace — that’s more. We quote upfront after seeing the job, not before. Estimates are free. Call (844) 560-6978.
We Also Serve Cities Near Ukiah
Our service radius up Highway 101 and across Mendocino County includes Cloverdale, Clearlake, Healdsburg, and Hidden Valley Lake. Same owner oversight, same brand coverage, same willingness to work with propane systems and older housing stock that defines our Ukiah work. If you’re in these communities and need ventilation that fits your actual house, not a textbook install, we make the trip.
Serving Ukiah, CA — Our Local Coverage Area
We’re based in the Ukiah 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 Ukiah
Yes. We route through closets, bulkheads, exterior soffits, or use wall-penetrating ERV units designed for tight spaces. We recently retrofitted an ERV system into a 1920s Craftsman bungalow on Oak Street with 30-inch rafters. Call (844) 560-6978 and we’ll survey your specific layout — estimates are free.
Only if installed without combustion zone testing. We test before and after to prevent back-drafting, and spec ERVs compatible with propane venting configurations. This is specialized work that most Santa Rosa contractors rarely encounter. Our 19 years includes extensive propane system experience in Mendocino County’s rural fringe.
For Ukiah’s climate and typical 1,800 sq ft ranch with crawl space, we recommend 50–70 pint capacity, or 90+ pints if the home has chronic moisture intrusion from winter rains. Slab-on-grade homes need less capacity than crawl space construction. We size precisely after moisture mapping during our free estimate.
UV purifiers neutralize microbes but do not remove smoke particulates. For Ukiah’s wildfire season, we recommend MERV 13+ filtration first, UV as secondary treatment for the closed-window microbial load. Combined systems address both problems. We can retrofit filtration onto most existing ductwork or recommend standalone units for homes without central air.
Ducted central air is usually impractical in homes without existing infrastructure. We typically recommend ductless mini-splits with built-in air filtration, which cool effectively and avoid destructive wall demolition. Some Ukiah homeowners pair mini-splits with standalone ERV units for ventilation. We’ll walk both options during your free estimate — call (844) 560-6978.
Ready to fix the air quality in your Ukiah home? Whether it’s a propane-compatible ERV, ventilation for a house with no attic, or filtration for wildfire season, we’ll spec it honestly and install it right. Call Crestview Heating & Air California at (844) 560-6978 for your free estimate. Marcus Feldman reviews every Ukiah job personally.
Written by Marcus Feldman, Owner at Crestview Heating & Air California, serving Ukiah and the greater Bay Area since 2005.