HVAC Contractor
Repair, installation, maintenance, and the airflow and specialty services that keep a complete comfort system working together.
Meet your HVAC contractorFind your service
What can we help you with?
Start with the kind of system or project you need. Each category brings the relevant services together, with room for repair, maintenance, and future planning.
Heating Contractor
Heating repair, installation, and maintenance, with furnace, heat pump, and electric heating options tailored to your property.
Explore heating contractorFurnace Repair Service
Furnace diagnosis, maintenance, and replacement planning. Find the right next step for a gas or electric heating system.
Explore furnace repair serviceAir Conditioning Contractor
Central air and ductless cooling services, from a focused repair to a carefully planned new installation.
Explore air conditioning contractorHVAC Contractor
Whole-system care & specialty services
Whole-system concerns often involve more than the heating or cooling unit. Start here for general equipment care, commercial work, ducts, controls, filtration, and specialty systems.
Meet your HVAC contractor- HVAC Repair
- HVAC Installation
- HVAC Maintenance
- HVAC Replacement
- Commercial HVAC Services
- Duct & Vent Installation
- Duct & Vent Repair
- Duct Cleaning
- Duct Sanitizing Consultation
- Thermostat Installation
- Thermostat Repair
- Indoor Air Quality Services
- Air Purifier Installation
- Filter Maintenance & Replacement
- Dryer Vent Cleaning
- Wine Cooler Maintenance & Repair
- Sauna Repair & Maintenance
- VRF HVAC Systems
- Emergency HVAC Repair
- In-Home HVAC Evaluation
- HVAC Filtration Upgrades
For planned heating and cooling care, explore our Diamond Thermostat membership plans.
Heating Contractor
Heating & heat pumps
Find diagnosis for lost heat, planned seasonal care, or installation options for a different heating setup. Heat pump services consider both heating and cooling operation.
Explore the heating categoryFurnace Repair Service
Furnace services
Choose gas or electric furnace repair when the equipment needs diagnosis, or explore maintenance, installation, and replacement as distinct service decisions.
Explore the furnace categoryAir Conditioning Contractor
Air conditioning & ductless systems
Restore cooling, plan a new central system, or bring individual control to specific rooms. The cooling category also connects to heat pumps and the airflow and control work that supports them.
Explore the air conditioning categoryNot sure which service to choose?
You do not need to diagnose the system before calling. Our answers to common HVAC questions can help you prepare for a service visit. Tell us what changed, which rooms are affected, and the equipment type if you know it. We will help you choose a useful first step.
Talk with Diamond HVACBased in Petaluma and serving Sonoma County, the North Bay, Marin County, 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.