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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon66
    Verified heating oil services reviews

Find Heating oil pros in University City

Michael McNeil

New on AngiNew on Angi
Approved Pro

Michael McNeil

New on AngiNew on Angi
Approved Pro
Free onsite estimate

As a homeowner and landlord for more than 20 years, I’ve gained hands-on experience across all aspects of home maintenance and improvement. With a background in the building trades and a degree from Vatterott College, I handle everything from simple fixes to smart home technology installations. I’m fully insured and dedicated to doing the job right.

As a homeowner and landlord for more than 20 years, I’ve gained hands-on experience across all aspects of home maintenance and improvement. With a background in the building trades and a degree from Vatterott College, I handle everything from simple fixes to smart home technology installations. I’m fully insured and dedicated to doing the job right.


Spencer's Heating and Cooling, LLC

New on AngiNew on Angi
Approved Pro

Spencer's Heating and Cooling, LLC

New on AngiNew on Angi
Approved Pro
2 years of experience
Free onsite estimate

Spencer's Heating and Cooling, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Spencer's Heating and Cooling, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.


American Airtemp LLC

New on AngiNew on Angi
Approved Pro

American Airtemp LLC

New on AngiNew on Angi
Approved Pro
17 years of experience

American Airtemp LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

American Airtemp LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.


McKenny Services

4.91(
37
)
Approved Pro

McKenny Services

4.91(
37
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
15 years of experience

McKenny Services has been around for almost a decade and I offer a wide variety of services for all my customers. The focus here is to offer comfortable and affordable heating and cooling solutions. With over 20 years of experience, I am an expert in the field and I am able to assist you with whatever issue you may have with your unit. Feel free to call me if you have any questions or schedule an online appointment as soon as possible!

"Very professional and knowledgeable. My Air is working great!! "

Derek H on May 2025

McKenny Services has been around for almost a decade and I offer a wide variety of services for all my customers. The focus here is to offer comfortable and affordable heating and cooling solutions. With over 20 years of experience, I am an expert in the field and I am able to assist you with whatever issue you may have with your unit. Feel free to call me if you have any questions or schedule an online appointment as soon as possible!

"Very professional and knowledgeable. My Air is working great!! "

Derek H on May 2025


Avatar for Dunn Plumbing, Heating and Air Conditioning / Dunn One Hour Heating and Air Cond

Dunn Plumbing, Heating and Air Conditioning / Dunn One Hour Heating and Air Cond

4.77(
247
)
Approved Pro

Dunn Plumbing, Heating and Air Conditioning / Dunn One Hour Heating and Air Cond

4.77(
247
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
443 local quotes requested

Now offering one hour service for heating and air conditioning service. We are factory authorized to service all major brands and we offer all the top products in the industry. Year to year we win numerous awards for customer service and technical skill. Our team is dedicated to providing you with the attention to detail and customer service that can create a whole new level of comfort and energy savings. Led by owner Brett Nejmanowski, our company provides expert sales, service and installation. We have a team of technicians that are fully qualified to help you select the comfort system that best fits your home and your budget. We serve the greater St Louis area, and are a no-nonsense, everything-on-the -table kind of heating and cooling company. Our written 100% satisfaction guarantee is behind all the work we do – if you’re not happy with our heating and cooling services for any reason, we’ll make it right or give your money back, no questions asked! No matter if it is a furnace or AC repair, furnace and AC installation, heat pump installation, or anything heating and air conditioning-related, you will have our guarantee. Along with the services we provide, we’re also passionate about our duty to protect the environment and our social responsibility to the community. In our daily practices, we utilize earth-friendly products and methods to ensure clean outdoor and safe indoor environments for the people we serve. We regularly give back to the community through volunteer work and financial donations. Among the charitable organizations we support are Safe Kids USA, National Multiple Sclerosis Society, Autism Speaks and the Sheriffs’ Association. Financing options available. Numerous rebate programs available. Government subsidized programs available to qualifying homes. Additional phone number (618) 717-0707 Also servicing clients from both 14248 F Manchester Rd, Ste. 190, Manchester MO, 63011 & 110 West Main St., Ste. A, Belleville IL, 62220!

"Timely and professional. Great work "

Jackie L on November 2025

Now offering one hour service for heating and air conditioning service. We are factory authorized to service all major brands and we offer all the top products in the industry. Year to year we win numerous awards for customer service and technical skill. Our team is dedicated to providing you with the attention to detail and customer service that can create a whole new level of comfort and energy savings. Led by owner Brett Nejmanowski, our company provides expert sales, service and installation. We have a team of technicians that are fully qualified to help you select the comfort system that best fits your home and your budget. We serve the greater St Louis area, and are a no-nonsense, everything-on-the -table kind of heating and cooling company. Our written 100% satisfaction guarantee is behind all the work we do – if you’re not happy with our heating and cooling services for any reason, we’ll make it right or give your money back, no questions asked! No matter if it is a furnace or AC repair, furnace and AC installation, heat pump installation, or anything heating and air conditioning-related, you will have our guarantee. Along with the services we provide, we’re also passionate about our duty to protect the environment and our social responsibility to the community. In our daily practices, we utilize earth-friendly products and methods to ensure clean outdoor and safe indoor environments for the people we serve. We regularly give back to the community through volunteer work and financial donations. Among the charitable organizations we support are Safe Kids USA, National Multiple Sclerosis Society, Autism Speaks and the Sheriffs’ Association. Financing options available. Numerous rebate programs available. Government subsidized programs available to qualifying homes. Additional phone number (618) 717-0707 Also servicing clients from both 14248 F Manchester Rd, Ste. 190, Manchester MO, 63011 & 110 West Main St., Ste. A, Belleville IL, 62220!

"Timely and professional. Great work "

Jackie L on November 2025


"My central heating system wasn't working and the previous company that installed my ac system did a poor job. Josh and Eric came and corrected the wiring. My heart works and the wiring is correct now. They were very nice and professional. I would highly recommend this company. If I have any other ac or heating issues I will hire them again."

Caitlyn R on November 2025

We offer quality and affordable HVAC services. All of our work is done with integrity and attention to detail.

"My central heating system wasn't working and the previous company that installed my ac system did a poor job. Josh and Eric came and corrected the wiring. My heart works and the wiring is correct now. They were very nice and professional. I would highly recommend this company. If I have any other ac or heating issues I will hire them again."

Caitlyn R on November 2025


Avatar for Hoffmann Brothers

Hoffmann Brothers

4.72(
38
)
Approved Pro

Hoffmann Brothers

4.72(
38
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
25 years of experience

The Heating and Air Conditioning Contractors at Hoffmann Brothers have provided the greater St. Louis area with reliable and professional services for more than 40 years. When you are in need of heating, ventilation, and air conditioning (HVAC) contractors for any of your heating or air conditioning repair or replacement service needs, call upon us at (314) 664-3011 or contact our team online.

"Good"

Andrew W on August 2024

The Heating and Air Conditioning Contractors at Hoffmann Brothers have provided the greater St. Louis area with reliable and professional services for more than 40 years. When you are in need of heating, ventilation, and air conditioning (HVAC) contractors for any of your heating or air conditioning repair or replacement service needs, call upon us at (314) 664-3011 or contact our team online.

"Good"

Andrew W on August 2024


Avatar for Anton's Plumbing, Heating/Cooling Energy Experts

Anton's Plumbing, Heating/Cooling Energy Experts

4.88(
68
)
Approved Pro

Anton's Plumbing, Heating/Cooling Energy Experts

4.88(
68
)
Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
43 local quotes requested

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Both the estimator Kevin the two installers who visited my home were very professional and kind. They answered all my questions and provided a very reasonable price for the installation of the attic insulation. I feel I was very informed on the federal rebate that was available for this installation, as well as on the recommendations of quantity of insulation I needed per residential standards and codes. I would recommend Anton and will use them in the future for my HVAC needs!"

Haley D on November 2024

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Both the estimator Kevin the two installers who visited my home were very professional and kind. They answered all my questions and provided a very reasonable price for the installation of the attic insulation. I feel I was very informed on the federal rebate that was available for this installation, as well as on the recommendations of quantity of insulation I needed per residential standards and codes. I would recommend Anton and will use them in the future for my HVAC needs!"

Haley D on November 2024


Local Air Duct Pros

5.00(
2
)
Approved Pro

Local Air Duct Pros

5.00(
2
)
Approved Pro
342 local quotes requested
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"They was very professional and clean "

Richard E on June 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"They was very professional and clean "

Richard E on June 2025


Avatar for SmartHouse Heating & Cooling

SmartHouse Heating & Cooling

4.79(
512
)
Approved Pro

SmartHouse Heating & Cooling

4.79(
512
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
78 local quotes requested

***For EMERGENCY requests, please CALL our office for immediate assistance*** SmartHouse is a leading provider of HVAC and home performance services throughout the St. Louis area specializing in: • Installation, maintenance, and repair of heating & cooling systems (traditional and geothermal) • Indoor air quality (IAQ) solutions • Energy efficiency upgrades • Solving comfort issues Our focus on exceptional service, quality craftsmanship and bulletproof integrity has been recognized by the Better Business Bureau with their TORCH AWARD FOR ETHICS AND INTEGRITY. If you’ve been looking for a trustworthy heating and cooling contractor that provides best-practice craftmanship with integrity, we hope you will consider choosing SmartHouse!

"Updated 4/25/2025 review: would be delighted to change this back to 5 star, but no way at this time. 1 reply since 4/14. No followup; can't coordinate with roofer to actually install A/C unit to my home (each says they will, but neither does), months after it was craned to the roof. Only half the house has A/C, and the single unit working cannot cool the whole thing below 76°. Horrible in 80+° heat. Need relief, and very much not getting it here. Very unprofessional and unethical."

Donna Z on April 2025

***For EMERGENCY requests, please CALL our office for immediate assistance*** SmartHouse is a leading provider of HVAC and home performance services throughout the St. Louis area specializing in: • Installation, maintenance, and repair of heating & cooling systems (traditional and geothermal) • Indoor air quality (IAQ) solutions • Energy efficiency upgrades • Solving comfort issues Our focus on exceptional service, quality craftsmanship and bulletproof integrity has been recognized by the Better Business Bureau with their TORCH AWARD FOR ETHICS AND INTEGRITY. If you’ve been looking for a trustworthy heating and cooling contractor that provides best-practice craftmanship with integrity, we hope you will consider choosing SmartHouse!

"Updated 4/25/2025 review: would be delighted to change this back to 5 star, but no way at this time. 1 reply since 4/14. No followup; can't coordinate with roofer to actually install A/C unit to my home (each says they will, but neither does), months after it was craned to the roof. Only half the house has A/C, and the single unit working cannot cool the whole thing below 76°. Horrible in 80+° heat. Need relief, and very much not getting it here. Very unprofessional and unethical."

Donna Z on April 2025

Showing 1-10 of 17
Heating Oil questions, answered by experts

Most maintenance checks take 2-5 hours, though extensive repairs may take longer.

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

For most systems, an annual HVAC system service is more than enough. Some homeowners prefer a twice-a-year visit to ensure the system is ready for the upcoming summer and winter seasons. If you need to call an HVAC pro more often than this, it may be time to check if your system is getting old enough for a replacement.

DIY maintenance like filter cleaning is possible, but professional servicing ensures proper pressure, refrigerant levels, and loop performance.

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

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.