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TRUSTED BY FENNVILLE, MI HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon58
    Verified heating oil services reviews

Verified Reviews for Heating Oil Service pros in Fennville, MI

*The Angi rating for Heating Oil Service companies in Fennville, MI 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 Fennville, MI 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 October 23, 2025

Find Heating oil pros in Fennville

Avatar for SULLIVAN Heating Cooling Plumbing

SULLIVAN Heating Cooling Plumbing

4101 40th Street SE, Suite 1
5.00(
3
)
•Approved Pro

SULLIVAN Heating Cooling Plumbing

4101 40th Street SE, Suite 1
5.00(
3
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
220 local quotes requested

SULLIVAN Heating Cooling Plumbing is West Michigan's most trusted provider for residential customers. We specialize in the installation, repair, maintenance, and emergency services of HVAC and plumbing systems, ensuring year-round comfort and energy efficiency. With a team of certified technicians, and a commitment to quality service, we deliver reliable solutions tailored to each client’s needs. Whether it’s keeping your home warm in those harsh Michigan winters or cool in the dog days of summer, we’re here to help. So remember, When Your Comfort's in Trouble, Call SULLY on the Double!

"Great every professional"

Ed P on August 2025

SULLIVAN Heating Cooling Plumbing is West Michigan's most trusted provider for residential customers. We specialize in the installation, repair, maintenance, and emergency services of HVAC and plumbing systems, ensuring year-round comfort and energy efficiency. With a team of certified technicians, and a commitment to quality service, we deliver reliable solutions tailored to each client’s needs. Whether it’s keeping your home warm in those harsh Michigan winters or cool in the dog days of summer, we’re here to help. So remember, When Your Comfort's in Trouble, Call SULLY on the Double!

"Great every professional"

Ed P on August 2025

Avatar for Petro Plumbing & Mech.

Petro Plumbing & Mech.

3111 Red Clover Road
4.71(
7
)

Petro Plumbing & Mech.

3111 Red Clover Road
4.71(
7
)
Customers say: Quality work
29 years of experience

Petro Plumbing is a family owned business with over 20 years of experience in residential, commercial, and industrial plumbing. From drain cleaning to bathroom remodeling to industrial builds, there's no project too big or too small.

"Petro Plumbing & Mechanical are the quintessential professionals."

Matthew W on February 2021

Petro Plumbing is a family owned business with over 20 years of experience in residential, commercial, and industrial plumbing. From drain cleaning to bathroom remodeling to industrial builds, there's no project too big or too small.

"Petro Plumbing & Mechanical are the quintessential professionals."

Matthew W on February 2021

Heating Oil questions, answered by experts

If a geothermal heat pump is installed correctly, then you shouldn’t have to worry about having a backup heat source such as a furnace or oil boiler. However, there are geothermal systems installed that include a backup in case the heat pump fails due to extreme cold. This is simply a backup heat pump you’ll likely never need and not an alternative heat source.

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.

Most HVAC companies charge a flat service call fee of between $75 and $150, which includes traveling to your home and inspecting your system to find the underlying problem. Keep in mind that these prices only include diagnostics and the actual repairs will usually be billed separately. If you’re calling for routine service, the service call will be included in your inspection and tune-up, with the total sitting around $150. Your prices could be a little higher if you have a very large home with multiple condensers and air handlers, as inspections and servicing take longer.

Costs depend on system age, type, labor, and whether part replacements are necessary.

Yes, geothermal heat pumps are worth the money. You can save about 70% on heating costs in the winter and around 50% on cooling costs in the summer with a geothermal heat pump compared to a traditional HVAC system. Over time, your savings on monthly utilities will pay for the cost of the geothermal heat pump installation. If you have an incredibly small yard, however, you may not have enough space for this type of system.

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