Repairs and diagnostics
Describe the loss of heat, weak cooling, unusual sound, or control problem. We evaluate the system and explain the work needed to address the findings.
HVAC repair
Serving Occidental
Heating choices for a home in the western county
For a dependable heating and cooling service in Occidental residents trust Diamond HVAC Services Inc. We provide expert solutions to keep your home comfortable year-round, from summer heat to winter chill. Schedule your service with our expert team today!
Occidental lies along the Bohemian Highway between the Russian River area and Freestone. For a heating project, begin with the present equipment and the rooms it serves. If the goal is a quieter system, cooling in one room, or a full replacement, say so before comparing models.
Our team serves your property from Petaluma. Meet Diamond HVAC and learn about our approach to heating, cooling, and ongoing equipment care.
How we can help
HVAC services in Occidental
A heat pump may combine heating and cooling goals, while a ductless installation can focus on selected spaces. Either choice needs a review of distribution, electrical requirements, mounting, and drainage. We can explain how those details change the scope of the project.
Installation and replacement
Compare equipment with the rooms, distribution, placement, and supporting work included. Discuss both heating and cooling goals before settling on a system.
HVAC installationMaintenance and controls
Plan equipment care around the system and its instructions. Ask about filter care, thermostat use, and issues that need separate repair rather than routine maintenance.
HVAC maintenanceExplore options for your property
Request service in OccidentalPlanning a visit
Tell us about the equipment and access
Include directions and the equipment location for properties reached off the main road. If you are comparing estimates, bring the complete scopes so retained ducts, controls, and supporting work can be compared fairly.
We explain the proposed scope before work begins. If you are planning an upgrade, ask about FTL Finance options, applicable equipment warranties, and what the installation includes. Availability and terms depend on the project and provider.
For recurring care, our Diamond Thermostat membership plans provide another way to discuss heating and cooling maintenance with the team.
What should I compare in two heating replacement proposals?
Compare the equipment and the full installation scope: distribution, controls, electrical work, removal, and access. We can discuss which items are included for your Occidental property rather than comparing equipment prices alone.
How do I request heating or cooling service in Occidental?
Call (707) 762-7260 or use our contact form with the address, equipment type, and symptoms. Our Petaluma team will discuss the scope and confirm scheduling. A request does not automatically reserve an appointment.
More ways we can help
Air quality and specialty equipment
Our service range also includes the air distribution and specialty systems in your home. Identify the equipment and the concern when you request a visit so we can confirm the right scope.
- Air purifier installation
- Filter maintenance and replacement
- Duct cleaning
- Duct sanitizing
- Dryer vent cleaning
- Wine cooler maintenance and repair
- Sauna repairs and replacements
Browse our heating, furnace, and air conditioning services, or view the complete service directory.
Looking beyond Occidental? See Sonoma County coverage and all areas we serve. We also accept requests across the North Bay, Napa County, and San Francisco.
Repairs · New systems · MaintenanceNeed a repair?
Need a repair?
Planning a new system?
Tell us what’s happening with your heating or cooling. We’ll help you understand the next step and put together a clear estimate.