Top-rated heating oil pros.

Get matched with top heating oil pros in Millville, CA

Enter your ZIP and get matched with up to 5 pros

TRUSTED BY MILLVILLE, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon32
    Verified heating oil services reviews

Verified Reviews for Heating Oil Service pros in Millville, CA

*The Angi rating for Heating Oil Service companies in Millville, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating Oil Service needs.

*The HomeAdvisor rating for Heating Oil Service companies in Millville, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating Oil Service needs.

Last update on December 02, 2025

Find Heating oil pros in Millville

Avatar for Gallaghers Plumbing, Heating & Air Inc.

Gallaghers Plumbing, Heating & Air Inc.

3.26(
84
)
•Approved Pro

Gallaghers Plumbing, Heating & Air Inc.

3.26(
84
)
•Approved Pro
36 years of experience
Free onsite estimate

Welcome to Gallagher's Heating, Air Conditioning & Plumbing, where your family's comfort and safety are our top priorities. Whether you need air conditioning service, heating repairs, plumbing solutions, or indoor air quality improvements, you'll be served by one of our "Stand Up Guys" - highly trained professionals you can trust. Every member of our team has completed rigorous technical training, passed comprehensive background checks, and regular drug screening. We take pride in sending only the most qualified, courteous, and reliable technicians to your home. When you choose Gallagher's, you're choosing peace of mind and exceptional service from professionals who treat your home as if it were their own.

Welcome to Gallagher's Heating, Air Conditioning & Plumbing, where your family's comfort and safety are our top priorities. Whether you need air conditioning service, heating repairs, plumbing solutions, or indoor air quality improvements, you'll be served by one of our "Stand Up Guys" - highly trained professionals you can trust. Every member of our team has completed rigorous technical training, passed comprehensive background checks, and regular drug screening. We take pride in sending only the most qualified, courteous, and reliable technicians to your home. When you choose Gallagher's, you're choosing peace of mind and exceptional service from professionals who treat your home as if it were their own.

Avatar for Golden State Comfort

Golden State Comfort

5.00(
7
)

Golden State Comfort

5.00(
7
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Golden State Comfort is your comfort & energy specialist! In business since 2006, Golden State Comfort is dedicated to serving the North State with all HVAC, Ventilation, Energy and Comfort Needs. We take pride in our trade. Before we do any repairs we will give you a written estimate with options that will best suit your financial and comfort needs to give you the best return on your investment. Call us today with your HVAC and Energy Questions!

Golden State Comfort is your comfort & energy specialist! In business since 2006, Golden State Comfort is dedicated to serving the North State with all HVAC, Ventilation, Energy and Comfort Needs. We take pride in our trade. Before we do any repairs we will give you a written estimate with options that will best suit your financial and comfort needs to give you the best return on your investment. Call us today with your HVAC and Energy Questions!

Heating Oil questions, answered by experts

It’s a better use of energy (and your money) NOT to run an ERV system all the time. Most experts recommend that you cycle your ERV system on and off throughout the year. However, the recommended advice could change based on your climate, the number of people in your home, the size and style of your home, and your heating and cooling system. Contact a local pro for more specific advice.

Service costs range from $200 to $1,500, depending on maintenance needs, system age, and labor.

You need to service an HVAC system about twice per year, with a service including an inspection and basic maintenance. It’s best to schedule maintenance in the spring (after the furnace has been running and before the AC kicks on) and in the fall (after the AC worked hard all summer and before winter’s first chill arrives). 

Regular HVAC services will keep the system working as efficiently as possible, saving you money on utilities and larger repairs. HVAC maintenance costs around $250 per visit, while bigger repairs from forgotten upkeep could cost thousands.

Geothermal systems provide energy efficiency, lower utility bills, and long-term sustainability with minimal environmental impact.

The most obvious downside is the high upfront cost of buying and installing one of these systems. Additionally, sometimes the system can take a longer time to heat than alternatives like a boiler. Also, if something goes wrong with the geothermal pump, repairs are often significantly more expensive than repairing traditional, above-ground heat pumps.

The homeowners guide to home care is here

From average costs to expert advice, get all the answers you need to get your job done.

See all articles