HVAC Services and Designs
Over 100 Years of Combined Experience | Discounts for New Customers | Warranties Available
Get Exceptional HVAC Services from Cal-Bay Service
Are you looking for reliable HVAC services? Look no further. Cal-Bay Service, Inc provides a full range of mechanical services including: commercial and residential air conditioning, heating, ventilation, air purification systems, wine cellar refrigeration, and much more. Backed by years of experience in HVAC services, designs, and installations, you can expect quality same-day service from our knowledgeable technicians. We service a wide area including Solano, Contra Costa, Napa, Sonoma, and Marin Counties to name a few. Contact our office today for more information or to book an appointment for your free estimate!
Air Conditioning Services
Are you interested in upgrading to or installing an energy-efficient AC unit for your house or office? Get in touch with Cal-Bay Service’s AC specialists today to discuss options for your home. Don’t forget to ask about what DISCOUNTS we offer on new installations!
Heating Services
Whether you’re looking for a repair on your existing heating system or to upgrade with a more energy-efficient one, Cal-Bay Service has you taken care of. Speak to our expert technicians now to learn about options for your home’s heating.
Water Heaters
Whether your existing water heater is on the fritz or you’re looking to install an energy-efficient model, turn to Cal-Bay Service for all your water heater sales, installation, and repair needs.
Air Purification, Filtration, and Humidifiers
Prevent dust buildup, keep your HVAC system clean, and live pet-dander free with a high-end air filtration system. Call us for a free estimate on replacements and new installations!
Duct Sealing and Replacement
Improve the overall air purification in your home with the duct sealing and replacement services that we offer. We received accreditation from California Contractors. Request a call back or contact us today!
Maintenance
Prevent dust buildup, keep your HVAC system clean, and live pet-dander free with a high-end air filtration system. Call us for a free estimate on replacements and new installations!
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They made it affordable as well. This is my second experience with Cal Bay – first… read more
Why Cal-Bay Service is the One You Should Choose
Same-Day Service
Family and Locally Owned
Warranties Available
Satisfaction Guaranteed
Discounts for New Customers
Discounts On New Installation
Same-Day Service
Family and Locally Owned
Warranties Available
Satisfaction Guaranteed
Discounts for New Customers
Discounts On New Installation
HVAC Installation Costs in 2025: Complete Pricing Guide
An HVAC system — short for heating, ventilation, and air conditioning — regulates temperature, humidity, and air quality to keep your home comfortable throughout the year. But how much should you expect to spend when installing one? On average, homeowners pay between $2,500 and $11,000 for a full HVAC installation, including equipment and labor. Prices vary depending on the system type, efficiency rating, home size, and whether new ductwork is required. This guide breaks down HVAC installation costs by region, system type, efficiency, and components, so you know exactly what to budget.
Cost by Home Size
The larger the home, the more power and ductwork required. On average, expect $3 to $7 per square foot.
Home Size | Average Cost |
800 sq. ft | $2,400 – $5,500 |
1,200 sq. ft | $3,600 – $8,500 |
1,500 sq. ft | $4,500 – $10,500 |
2,000 sq. ft | $6,000 – $14,000 |
Cost by Region
HVAC installation costs fluctuate depending on local labor rates and climate. Homes in areas with higher living costs or extreme weather conditions typically see higher prices.
Location | Average Cost (Labor + Materials) |
Northeast (NY, RI) | $2,300 – $13,500 |
Southeast (AL, GA) | $1,700 – $9,000 |
Midwest (IN, IL) | $2,400 – $12,500 |
Northwest (OR, WA) | $2,100 – $11,300 |
Southwest (NM, CA) | $2,000 – $11,000 |
Cost by Components
Component | Average Cost |
Thermostat | $120 – $270 |
Air Purifier | $400 – $4,500 |
Ductwork | $2,100 – $4,900 |
Dehumidifier | $2,800 – $3,400 |
Frequently Ask Questions
How much does an HVAC system cost to install?
Installing a new HVAC system costs $5,000–$12,000 depending on home size, efficiency, and brand. Central air with a furnace package costs more, while ductless split systems are lower. Professional installation ensures correct sizing and warranty coverage.
How long does an HVAC system last?
Most HVAC systems last 15–20 years with proper maintenance. Air conditioners and heat pumps last closer to 12–15 years, while furnaces may last up to 25. Annual tune-ups extend equipment life and prevent costly breakdowns.
Do air purification systems really work?
Yes. Whole-home air purification systems remove dust, allergens, bacteria, and VOCs from your air. They improve indoor air quality, reduce asthma triggers, and can even capture viruses. Effectiveness depends on filter type, maintenance, and system placement.
How often should air filters be replaced?
Most HVAC filters should be replaced every 1–3 months, depending on filter type, pets, and household dust levels. High-efficiency filters may last longer, but dirty filters reduce airflow and strain the system.
When should I repair or replace ductwork?
Replace or repair ducts if you notice leaks, uneven heating/cooling, high bills, or poor airflow. Ducts typically last 10–15 years. New, sealed ductwork improves efficiency, lowers utility costs, and increases comfort in every room.
How long do water heaters last?
Tank water heaters last 8–12 years, while tankless models last 15–20 years with maintenance. Warning signs include rusty water, strange noises, leaks, or inconsistent hot water. Timely replacement prevents costly water damage.
How much does A/C repair cost?
A/C repair costs range from $150–$600 for common fixes. Simple capacitor or thermostat repairs are inexpensive, while compressor or refrigerant issues may exceed $1,500. Annual maintenance helps avoid major breakdowns.
How long does A/C installation take?
Most A/C installations take one full day. Adding ductwork or replacing both A/C and furnace may take 2–3 days. Professional installation ensures proper wiring, refrigerant charging, and system performance.
How do I know if my A/C needs repair?
Signs include warm air blowing, weak airflow, unusual noises, frequent cycling, or high energy bills. Water leaks or refrigerant smells also point to problems. Early repair saves money and prevents system failure.
How often should HVAC systems be serviced?
HVAC systems should be serviced twice a year — once in spring for cooling and once in fall for heating. Regular tune-ups improve efficiency, prevent breakdowns, and keep warranties valid.
Can an HVAC system improve energy efficiency?
Yes. Modern HVAC systems with high SEER ratings, variable-speed motors, and smart thermostats reduce energy use by up to 30%. Proper duct sealing and insulation further increase efficiency and lower bills.
What size HVAC system do I need?
System size depends on square footage, insulation, window type, and climate. Oversized units waste energy, while undersized ones strain to keep up. HVAC professionals perform load calculations to recommend the right size.
How do I know if I need a new water heater?
You may need a new unit if you notice lukewarm water, rusty color, leaks, or frequent repairs. If the heater is older than 10 years, replacement is usually more cost-effective than repair.
Why is my A/C blowing warm air?
Warm air may mean low refrigerant, a clogged filter, blocked ducts, or a failing compressor. Check filters first, then call a professional if the issue persists. Prompt repairs prevent further damage.
Is your current HVAC system due for replacement? Or are you installing one for the first time? Either way, we can help you find the right unit for your home and budget.
➤ Schedule a free consultation today and get an expert estimate tailored to your home.
They made it affordable as well. This is my second experience with Cal Bay – first… read more