# Enviro Heating & Air Conditioning > Family-owned heating and air conditioning contractor based in Rohnert Park, California, serving the North Bay (Sonoma, Marin, and Napa counties) since 2008. CSLB-licensed (#928565), NATE-certified, and Diamond Certified. Tagline: "Seasons change. We don't." Phone: (707) 795-7219. ## Main Pages - [Home](https://enviroheatnair.com): Heating and air conditioning repair, installation, and maintenance for the North Bay — Rohnert Park, Santa Rosa, Petaluma, and surrounding Sonoma, Marin, and Napa county communities. - [Services](https://enviroheatnair.com/services): HVAC services — air conditioning and heating repair, system installation and replacement, and routine maintenance. - [Service Areas](https://enviroheatnair.com/service-areas): Communities served across Sonoma, Marin, and Napa counties — including Rohnert Park, Santa Rosa, Petaluma, and Marin towns from San Rafael and Mill Valley to Tiburon, Belvedere, and Sausalito. - [CARE Membership](https://enviroheatnair.com/plans): CARE — Enviro's maintenance membership: seasonal tune-ups, member discounts, and priority and same-day service to keep heating and cooling systems running efficiently year-round. - [Financing](https://enviroheatnair.com/financing): Financing options for new heating and air conditioning systems and major repairs. - [Promotions](https://enviroheatnair.com/promotions): Current seasonal specials and offers on HVAC service and equipment. ## Company - [About](https://enviroheatnair.com/about): Family-owned and operated by Chris and Lori Street since 2008; CSLB license #928565, NATE-certified technicians, Diamond Certified. - [Team](https://enviroheatnair.com/team): The people behind Enviro Heating & Air Conditioning. - [Reviews](https://enviroheatnair.com/review): Customer feedback and ratings for Enviro Heating & Air Conditioning. - [Careers](https://enviroheatnair.com/careers): Open positions and how to apply to join the team. ## Resources - [Resources](https://enviroheatnair.com/resources): Hub for guides, articles, and helpful HVAC information. - [Learning Center](https://enviroheatnair.com/learning-center): A library of 39 plain-English North Bay HVAC guides across eight topics — heating & cooling, heat pumps & mini-splits, air quality & dryer vent, brands & equipment, maintenance & seasonal, evaluate & compare, cost guides, and tools & references — tagged by intent (learn / compare / act). Full index in the Learning Center section below. - [HVAC Tools & Estimators](https://enviroheatnair.com/tools): Free interactive homeowner tools — which-system quiz, size estimator, repair-vs-replace and symptom diagnosers, honest cost ranges, heat-pump rebate estimator, financing payment estimator, maintenance-plan savings estimator, and live local comfort & air-quality conditions. - [Free 2nd Opinion](https://enviroheatnair.com/free-second-opinion): Get an honest, no-pressure review of an HVAC quote you received from another contractor. - [Blog](https://enviroheatnair.com/blog): Articles and updates on heating, cooling, and indoor comfort. - [FAQs](https://enviroheatnair.com/faqs): Answers to common questions about HVAC service, scheduling, and maintenance. ## Service Area Pages City-level HVAC service pages across Sonoma, Marin, and Napa Counties. **Sonoma County** - [Rohnert Park](https://enviroheatnair.com/service-areas/rohnert-park) - [Santa Rosa](https://enviroheatnair.com/service-areas/santa-rosa) - [Petaluma](https://enviroheatnair.com/service-areas/petaluma) - [Cotati](https://enviroheatnair.com/service-areas/cotati) - [Windsor](https://enviroheatnair.com/service-areas/windsor) - [Healdsburg](https://enviroheatnair.com/service-areas/healdsburg) - [Sebastopol](https://enviroheatnair.com/service-areas/sebastopol) - [Sonoma](https://enviroheatnair.com/service-areas/sonoma) **Marin County** - [Novato](https://enviroheatnair.com/service-areas/novato) - [San Rafael](https://enviroheatnair.com/service-areas/san-rafael) - [San Anselmo](https://enviroheatnair.com/service-areas/san-anselmo) - [Ross](https://enviroheatnair.com/service-areas/ross) - [Kentfield](https://enviroheatnair.com/service-areas/kentfield) - [Larkspur](https://enviroheatnair.com/service-areas/larkspur) - [Corte Madera](https://enviroheatnair.com/service-areas/corte-madera) - [Mill Valley](https://enviroheatnair.com/service-areas/mill-valley) - [Tiburon](https://enviroheatnair.com/service-areas/tiburon) - [Belvedere](https://enviroheatnair.com/service-areas/belvedere) - [Sausalito](https://enviroheatnair.com/service-areas/sausalito) ## Learning Center Plain-English North Bay HVAC guides for Sonoma, Marin, and Napa County homeowners, organized into eight topics and tagged by intent (learn / compare / act). Hub: https://enviroheatnair.com/learning-center · Glossary: https://enviroheatnair.com/learning-center/glossary **Heating & Cooling** - [How a Heat Pump Works](https://enviroheatnair.com/learning-center/how-a-heat-pump-works) - [Why Is My Furnace Blowing Cold Air?](https://enviroheatnair.com/learning-center/furnace-blowing-cold-air) - [Why Is My AC Blowing Warm Air?](https://enviroheatnair.com/learning-center/ac-blowing-warm-air) - [Why Is My AC Freezing Up?](https://enviroheatnair.com/learning-center/ac-freezing-up) - [Dual-Fuel Heating Explained](https://enviroheatnair.com/learning-center/dual-fuel-heating-explained) - [Thermostat Basics for North Bay Homes](https://enviroheatnair.com/learning-center/thermostat-basics) - [Whole-Home Zoning: Even Comfort, Room by Room](https://enviroheatnair.com/learning-center/whole-home-zoning-guide) - [Why Your Upstairs (or Bonus Room) Is Always Too Hot](https://enviroheatnair.com/learning-center/upstairs-too-hot-bonus-room) **Heat Pumps & Mini-Splits** - [AC vs. Heat Pump](https://enviroheatnair.com/learning-center/ac-vs-heat-pump) - [Mini-Split vs. Central HVAC](https://enviroheatnair.com/learning-center/mini-split-vs-central) - [Heating & Cooling a Garage Conversion or ADU](https://enviroheatnair.com/learning-center/garage-adu-conversion-comfort) - [Heating & Cooling a Sunroom That's Unusable Half the Year](https://enviroheatnair.com/learning-center/sunroom-heating-cooling) (See also the Blog for the canonical heat-pump cost, rebates, furnace-vs-heat-pump, sizing, and ductless-for-older-homes guides.) **Air Quality & Dryer Vent** - [Air Purifiers & HEPA: What Actually Cleans Your Air](https://enviroheatnair.com/learning-center/air-purifiers-hepa-hvac) - [Do You Need a Whole-House Dehumidifier?](https://enviroheatnair.com/learning-center/whole-house-dehumidifier) - [Signs of a Clogged Dryer Vent](https://enviroheatnair.com/learning-center/signs-of-clogged-dryer-vent) - [How Often to Clean a Dryer Vent](https://enviroheatnair.com/learning-center/how-often-clean-dryer-vent) - [Duct Sealing & HERS Testing in California](https://enviroheatnair.com/learning-center/duct-sealing-hers) **Brands & Equipment** - [The HVAC Brands Enviro Installs & Services (Trane & Mitsubishi Electric)](https://enviroheatnair.com/learning-center/hvac-brands-we-install) - [Trane HVAC Systems: What to Know Before You Buy](https://enviroheatnair.com/learning-center/trane-hvac-systems) - [Mitsubishi Electric Ductless Mini-Splits Explained](https://enviroheatnair.com/learning-center/mitsubishi-electric-ductless) - [Trane vs. Mitsubishi: Which Brand for a North Bay Home?](https://enviroheatnair.com/learning-center/trane-vs-mitsubishi-which-brand) - [What Is SEER2? (and HSPF2, AFUE)](https://enviroheatnair.com/learning-center/what-is-seer2) - [HVAC Warranties Explained](https://enviroheatnair.com/learning-center/hvac-warranties-explained) - [HVAC Efficiency Upgrades That Pay Off](https://enviroheatnair.com/learning-center/efficiency-upgrades-that-pay-off) - [How to Choose an HVAC Contractor](https://enviroheatnair.com/learning-center/how-to-choose-hvac-contractor) **Maintenance & Seasonal** - [How Often Should You Service Your HVAC?](https://enviroheatnair.com/learning-center/how-often-service-hvac) - [Fall Furnace Prep Checklist](https://enviroheatnair.com/learning-center/fall-furnace-prep-checklist) - [HVAC for Cabins, Rentals & Wine-Country Estates](https://enviroheatnair.com/learning-center/hvac-for-cabins-rentals) **Evaluate & Compare** - [Window AC vs. Mini-Split vs. Central](https://enviroheatnair.com/learning-center/window-vs-mini-split-vs-central) - [Financing vs. Paying Cash for HVAC](https://enviroheatnair.com/learning-center/financing-vs-paying-cash) - [The HVAC Second-Opinion Guide](https://enviroheatnair.com/learning-center/hvac-second-opinion-guide) - [New-Construction vs. Retrofit HVAC: What Changes](https://enviroheatnair.com/learning-center/new-construction-vs-retrofit-hvac) **Cost Guides** (honest industry ranges — a site visit produces the real number) - [AC Replacement Cost in the North Bay](https://enviroheatnair.com/learning-center/ac-replacement-cost) - [Furnace Replacement Cost in the North Bay](https://enviroheatnair.com/learning-center/furnace-replacement-cost) - [Mini-Split Installation Cost](https://enviroheatnair.com/learning-center/mini-split-installation-cost) - [Indoor Air Quality System Cost](https://enviroheatnair.com/learning-center/indoor-air-quality-system-cost) - [Dryer Vent Cleaning Cost](https://enviroheatnair.com/learning-center/dryer-vent-cleaning-cost) **Tools & References** - [Planning an HVAC Project: A North Bay Roadmap](https://enviroheatnair.com/learning-center/hvac-project-planner) - [Permits & HVAC Code in Sonoma County](https://enviroheatnair.com/learning-center/permits-and-hvac-code) - [HVAC Glossary](https://enviroheatnair.com/learning-center/glossary) - [HVAC Tools & Estimators](https://enviroheatnair.com/tools) ## Blog In-depth, regularly-updated North Bay HVAC guides — the canonical, full-length articles for these high-intent topics (each authored and reviewed by Chris Street, Co-Owner). Hub: https://enviroheatnair.com/blog - [How Much Does a Heat Pump Cost in Sonoma County?](https://enviroheatnair.com/blog/heat-pump-cost-sonoma-county): What drives a heat-pump install price in the North Bay — system type, sizing, ductwork, electrical panel — and how rebates lower your net cost. - [2026 Heat Pump Rebates & Incentives in Sonoma County](https://enviroheatnair.com/blog/heat-pump-rebates-incentives-sonoma-county-2026): How to stack Sonoma Clean Power, TECH Clean California / BayREN, and the federal 25C credit on a 2026 heat-pump project. - [Furnace vs. Heat Pump: Which Is Right for a Northern California Home?](https://enviroheatnair.com/blog/furnace-vs-heat-pump-northern-california): A practical comparison built around the mild North Bay climate, including dual-fuel. - [What Size HVAC System Do I Need? (Why Bigger Isn't Better)](https://enviroheatnair.com/blog/what-size-hvac-system-do-i-need): Why a Manual J load calculation — not square footage — sizes your system, and what oversizing costs you. - [Ductless Mini-Splits for Older Sonoma County Homes](https://enviroheatnair.com/blog/ductless-mini-splits-older-sonoma-county-homes): Why ductless is often the best comfort upgrade for older North Bay homes without usable ductwork. - [Protecting Your Indoor Air From Wildfire Smoke](https://enviroheatnair.com/blog/protect-indoor-air-wildfire-smoke): MERV filtration, purification, duct sealing, and recirculation to keep wildfire smoke out during North Bay fire season. - [Repair or Replace? When It's Time for a New Furnace or AC](https://enviroheatnair.com/blog/repair-or-replace-furnace-ac): The $5,000 rule, equipment age, R-22 refrigerant, and heat-exchanger safety — for both the AC and the furnace decision. - [The Annual AC Tune-Up Checklist: What a Pro Visit Covers](https://enviroheatnair.com/blog/annual-ac-tune-up-checklist): The full multi-point professional tune-up checklist plus the spring-prep steps a homeowner can do. - [Is My Electrical Panel Ready for a Heat Pump?](https://enviroheatnair.com/blog/is-electrical-panel-ready-for-heat-pump): How to tell if your panel can handle a heat pump, when a 200A upgrade is needed, and how to plan ahead. ## Commercial HVAC Light-commercial HVAC for North Bay businesses, tailored by building type — service scheduled around your hours, with preventive-maintenance agreements to avoid downtime. Hub: https://enviroheatnair.com/commercial-hvac - [Light Commercial HVAC](https://enviroheatnair.com/commercial-hvac/light-commercial-hvac): Rooftop and split-system service, repair, and installation for offices, retail, and small facilities. - [Office HVAC](https://enviroheatnair.com/commercial-hvac/office-hvac): Even comfort across a busy floorplate, after-hours service, and healthier air for productivity. - [Retail & Storefront HVAC](https://enviroheatnair.com/commercial-hvac/retail-storefront-hvac): A comfortable sales floor and entry, serviced around your busiest hours. - [Restaurant HVAC](https://enviroheatnair.com/commercial-hvac/restaurant-hvac): Kitchen heat, make-up air, and dining-room comfort kept in balance. - [Medical & Dental HVAC](https://enviroheatnair.com/commercial-hvac/medical-dental-hvac): Tight temperature, humidity, and air-quality control for patients and equipment. - [Property Management & Multi-Family HVAC](https://enviroheatnair.com/commercial-hvac/property-management-hvac): Many units, one responsive vendor, with planned maintenance across the portfolio. ## Contact - Phone: (707) 795-7219 - Address: 175 Cascade Court, Unit D, Rohnert Park, CA 94928 - Hours: Monday–Friday 7:00 AM – 4:00 PM; closed Saturday and Sunday ## Notes - This index covers the site's primary flat pages, the Learning Center library, the canonical Blog articles, and the city-level service-area pages listed above. Individual service-detail URLs are generated from the CMS and will be added here after that content is published.