Zoned heating systems allow you to heat different rooms or areas independently, giving you maximum comfort and control while reducing energy costs.
Cronus Service installs, repairs, and upgrades zoned heating systems, including multi-zone furnaces, duct dampers, smart thermostats, and ductless mini split heat pumps. We provide fast diagnostics and same-day repair in most cases.

What We Offer and Deliver
Full diagnostic of zone dampers, thermostats, control boards, and duct layout
Inspection and testing of zoning motors, actuators, and airflow balancing
Repair or replacement of zone dampers, sensors, wiring, and control modules
Installation of multi-zone setups using duct dampers or ductless systems
Smart thermostat configuration and zone calibration
Performance testing of each zone for proper heating output
Stages
Browse by category and find the service you need:
Stage 1
We assess your current furnace, duct layout, dampers, and thermostat setup to design or diagnose your zoning system.
Book request
Stage 2
We install new zone dampers or repair existing ones to restore independent control of each zone.

Stage 3
Zoned systems rely on precise communication between thermostats, control panels, and dampers. We program and calibrate everything.

Stage 4
We measure static pressure, airflow, and temperature to ensure each zone receives the correct heat.

Stage 5
We verify all zones heat independently, explain system operation, and provide maintenance recommendations.

Tip
If you’re facing one or more of the following issues, repairing or upgrading your zoned heating system may be the most cost-effective solution.
.jpg)
Zoning eliminates cold spots in multi-level homes.

Perfect for spaces with varying heating needs.

Each zone can be customized separately.

Zoned heating reduces wasted energy dramatically.

Pro Tip:
Regular damper and control board checks keep the system efficient and prevent major failures.
Zoned Heating Systems Service Description
Zoned heating systems divide your home into multiple temperature-controlled areas, allowing customized comfort for each room or floor. Unlike traditional heating systems that treat the home as one zone, zoning uses motorized dampers and independent thermostats to direct heat only where it’s needed. This reduces energy waste and improves comfort dramatically.
Sacramento homes often have temperature differences between floors, sun-exposed rooms, or additions — making zoning highly beneficial for both comfort and energy efficiency.
Uneven temperatures, unresponsive zones, or cold rooms usually indicate damper motor failure or thermostat issues. If one or more zones never heat, the damper may be stuck closed or the wiring may be misconfigured. Loud airflow noise or furnace short cycling often means airflow restrictions from incorrect zone operation.
Smart thermostats displaying error messages or losing communication can also signal malfunctioning zone boards or thermostats.
• Zone dampers stuck open or closed
• Failed damper actuators
• Thermostat communication issues
• Faulty or outdated zone control boards
• Uneven heating or persistent cold rooms
• Incorrect or loose wiring connections
• Overheating furnaces due to closed dampers
• Low airflow or pressure imbalance
• Smart thermostat compatibility problems
• Duct obstructions affecting zone performance
Sacramento’s climate varies throughout the day — cold mornings, warm afternoons, cool evenings. Zoned heating accommodates these temperature swings by heating only the spaces in use. This is ideal for:
• Multi-story homes
• Homes with large master suites
• ADUs and additions
• Properties with long hallways or spread-out layouts
• Homes with family members who prefer different temperatures
By controlling each area independently, zoned heating cuts energy waste and improves comfort throughout the home.
Repair is the best choice when:
• Dampers, actuators, or thermostats fail
• Wiring needs correction
• The control board is modern and compatible
• Zones respond partially but not fully
Replacement makes sense when:
• Dampers are inaccessible or rusted
• The control board is outdated or discontinued
• A remodel changed the duct layout
• You want to add new zones
• A modern smart-zoning system offers better efficiency
Cronus Service technicians specialize in multi-zone systems, including diagnostics, damper replacement, smart thermostat compatibility, and control board programming. We balance airflow to ensure every zone receives proper heating. Most repairs are completed the same day in most cases, depending on part availability.
Whether you need zoning repair, new damper installation, or a complete zoning upgrade, Cronus Service delivers reliable solutions to improve comfort and efficiency.
Serving Sacramento, Roseville, Rocklin, Lincoln, Granite Bay, Folsom, El Dorado Hills, Elk Grove, and nearby areas.
Consultation
Send us a quick request — we’ll get back to you within 15 minutes.
You’ll receive a detailed cost estimate
We’ll help you choose the right equipment
We’ll answer all your questions
(!) No pressure. No hidden conditions. Just clear, professional service.
Top rated
Certified and recognized as a leader in quality and reliability.







Gallery
Real installations. Real homes. Real results
.jpg)

.jpg)


.jpg)

.jpg)
Reviews


FAQ
A single cold zone usually means a damper is stuck or the thermostat isn’t communicating with the zone control board. Sometimes wiring comes loose or an actuator motor burns out. In other cases, duct obstructions or collapsed duct sections block airflow. A technician will quickly identify the failure and restore heating to that zone.
Yes — zoning prevents waste by heating only the spaces you use. Most homes do not need the entire house heated at once. By reducing unnecessary heating, zoning lowers energy consumption and increases furnace lifespan. Many Sacramento homeowners see noticeable savings on winter energy bills.
Yes — in most cases. We carry common dampers, actuators, and control wiring needed for typical zoning systems. If your system uses a specialty damper size or discontinued components, parts may need to be ordered. While waiting, we stabilize your zoning system to keep heating consistent.
Yes — in most homes, zoning can be added by installing motorized dampers, a zone control board, and multiple thermostats. Some duct layouts may need modifications, and multi-story homes benefit the most. We evaluate your system to determine the best zoning configuration.
This usually happens when one or more dampers are stuck closed, causing poor airflow and forcing the furnace to run longer than normal. Another cause is a thermostat calling for heat continuously due to faulty wiring or a miscalibrated sensor. Continuous operation can damage your furnace if not corrected.
If dampers or actuators fail but the control board is modern, repair is usually the best option. If the system is outdated, incompatible with smart thermostats, or repeatedly malfunctioning, upgrading may be more cost-effective long-term. We provide clear recommendations based on your system's age and condition.
Contact US
Licensed, insured, and fully certified
We work with equipment from all major brands
In-house team — no subcontractors, no middlemen
Transparent estimates and fixed pricing before work begins
Keeping the best prices in the area, apply rebates
Ongoing service, repairs, and support after installation
Consultation
Send us a quick request — we’ll get back to you within 15 minutes.
You’ll receive a detailed cost estimate
We’ll help you choose the right equipment
We’ll answer all your questions
(!) No pressure. No hidden conditions. Just clear, professional service.
Our manager will contact you to advise you and answer all your questions.