Free HVAC Replacement Estimate
Book your free in-home HVAC replacement estimate.
Tell us what your home needs and choose the right next step for replacement or repair.
No cost · No obligation · Takes about 2 minutes
Local Sonoma + Marin service
Licensed contractor · CSLB #1131183
Replacement estimates
Repair appointments available
Why Start Here
A clearer path to home comfort.
Replacement or repair?
We route you to the right appointment based on what your home needs.
Clear next steps
Understand whether replacement, installation, or repair is the best fit.
Local availability
Choose from available appointment times for Sonoma and Marin homes.
No cost, no obligation
Replacement estimates are free, with no pressure to buy.
How It Works
Your appointment in three simple steps.
Answer a few questions, choose a time, and Green Core handles the rest.
Tell us what you need
Share your address, homeowner status, and whether you need replacement or repair.
Choose an available time
See the appointment options that match your request.
Meet Green Core
Get clear, local guidance without pressure or obligation.
Common HVAC Needs
Is your home dealing with any of these?
Green Core helps homeowners understand the right next step for common heating and cooling problems.
Old or unreliable system
Uneven temperatures
Rising energy bills
Frequent breakdowns
No cooling or heat
Not sure what you need
Why Green Core
Replacement guidance without the pressure.
Local service
Serving homeowners across Sonoma and Marin.
Licensed contractor
California HVAC contractor · CSLB #1131183.
Replacement focused
Clear in-home estimates for new heating and cooling systems.
Repair help
Repair appointments are available when replacement is not the right path.
Honest guidance
Straightforward answers with no pressure to buy.
Local Home Comfort
Real HVAC work. Clear recommendations.
Replacement-first guidance backed by local service and honest communication.
HOMEOWNER REVIEW
“The consistency, integrity, and quality they deliver is unmatched. They are incredibly knowledgeable, honest to the core.”
— Wendy Lear · Google Review
LOCAL SERVICE
Serving Sonoma and Marin homeowners with replacement estimates and repair appointments.
— Green Core Heating & Air
Why Choose Us
Care you can feel confident in.
Licensed HVAC Contractor
California contractor · CSLB #1131183.
Local Sonoma + Marin Service
Appointments focused on the communities Green Core serves.
Replacement Estimates
Free, no-obligation in-home estimates for new systems.
Repair Appointments
A secondary path when repair is the better next step.
Simple Scheduling
Choose an available time that fits your schedule.
Clear, Honest Guidance
Straightforward answers with no pressure.
Homeowner Reviews
Honest work homeowners recommend.
FAQ
Questions, answered.
Is the replacement estimate really free?
Yes. Green Core’s in-home replacement estimate is free and comes with no obligation to buy.
What happens after I submit?
Your answers route you to the right next step. Replacement requests can choose an estimate time, while repair requests follow the repair path.
Do you offer repair appointments?
Yes. Repair appointments are available when repair is the better fit for your home.
Which areas do you serve?
Green Core serves approved locations across Sonoma and Marin counties. Your address is checked during qualification.
How long does the appointment take?
Plan for about one hour. Green Core will confirm the appointment details with you.
Will I be pressured to buy?
No. The goal is to give you clear information and options so you can make the right decision for your home.
What if I am not sure what I need?
Choose “Not sure.” Green Core will clarify what is happening before sending you to the right appointment path.
Get Started Today
Ready to take the next step?
Check availability for a free in-home replacement estimate — no cost, no obligation.
Local Sonoma + Marin service · CSLB #1131183
Appointment requests are subject to service-area qualification and Green Core confirmation. Repair appointments may include fees that Green Core will explain directly.
Local heating and cooling service for homeowners across Sonoma and Marin.
© 2026 Green Core Heating & Air. All Rights Reserved.
Privacy Policy · Terms · Accessibility