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  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon148
    Verified heating oil services reviews

Find Heating oil pros in Guilford

Avatar for Agil General Construction LLC

Agil General Construction LLC

5.00(
3
)
Approved Pro

Agil General Construction LLC

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
216 local quotes requested

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business, we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"Highly recommend! They were extremely responsive, delivered outstanding work, and I will definitely look forward to working with them again."

Reggie L on February 2025

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business, we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"Highly recommend! They were extremely responsive, delivered outstanding work, and I will definitely look forward to working with them again."

Reggie L on February 2025


Avatar for The Guild

The Guild

5.00(
4
)
Approved Pro

The Guild

5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

The Guild 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 work smart, and it gets done right.

"Extremely professional and patient and above all else honest and knowledgeable! I would recommend this company to anyone you be a fool, not to go with them"

Jennifer F on June 2023

The Guild 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 work smart, and it gets done right.

"Extremely professional and patient and above all else honest and knowledgeable! I would recommend this company to anyone you be a fool, not to go with them"

Jennifer F on June 2023


Avatar for Scotti Mechanical Services

Scotti Mechanical Services

4.80(
58
)
Approved Pro

Scotti Mechanical Services

4.80(
58
)
Approved Pro
Customers say: Quality work
13 local quotes requested
5 years of experience

Here at Scotti Mechanical Services I have over 30 years of HVAC experience in oil heating (NO gas work) and air conditioning. I pride myself on my diligence and attention to detail, and make a dedicated effort to reduce repair/installation cost. There is no job too big or too small that I can't handle in a timely manner, please don't hesitate to call today. I look forward to earning your business. I do provide an after-hours emergency service.

"He didn't do any air side of furnace replaced ignitor we had loud bang noise it was because we needed the furnace to be cleaned and vacuumed I saw pics from real furnace guy it was full of rust and cresol flakes he never vacuumed anything terrible job never fixed problem"

Kenneth B on October 2024

Here at Scotti Mechanical Services I have over 30 years of HVAC experience in oil heating (NO gas work) and air conditioning. I pride myself on my diligence and attention to detail, and make a dedicated effort to reduce repair/installation cost. There is no job too big or too small that I can't handle in a timely manner, please don't hesitate to call today. I look forward to earning your business. I do provide an after-hours emergency service.

"He didn't do any air side of furnace replaced ignitor we had loud bang noise it was because we needed the furnace to be cleaned and vacuumed I saw pics from real furnace guy it was full of rust and cresol flakes he never vacuumed anything terrible job never fixed problem"

Kenneth B on October 2024


Avatar for Renz Heating and Air Conditioning, LLC

Renz Heating and Air Conditioning, LLC

5.00(
2
)
Approved Pro

Renz Heating and Air Conditioning, LLC

5.00(
2
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

We are a well established business with over 16 years of unmatched expertise. Customer preference and priorities are always first. We are very timely with our work and never lose attention to detail. Renz Heating & Air Conditioning, LLC, has built a reputation for quality work with each satisfied customer. Our sense of pride is apparent in every restoration we complete. Call Renz Heating & Air Conditioning, LLC, today and we will be there in your time of need.

"Perfect Heating installed new furnace, repairs installation of central air! Efficient, responsible, dependable and perfect work and great work Ethics s!"

Carol M on December 2019

We are a well established business with over 16 years of unmatched expertise. Customer preference and priorities are always first. We are very timely with our work and never lose attention to detail. Renz Heating & Air Conditioning, LLC, has built a reputation for quality work with each satisfied customer. Our sense of pride is apparent in every restoration we complete. Call Renz Heating & Air Conditioning, LLC, today and we will be there in your time of need.

"Perfect Heating installed new furnace, repairs installation of central air! Efficient, responsible, dependable and perfect work and great work Ethics s!"

Carol M on December 2019


Select Mechanical Services, Inc.

4.74(
53
)
Approved Pro

Select Mechanical Services, Inc.

4.74(
53
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
73 local quotes requested

With over 30 years of experience in the HVAC business, we are the experts you need to take care of your home or business. We handle everything from 24/7 emergency service to full installations and change outs. We will treat your home as we would treat our own. Give Select Mechanical Service a call today, we look forward to working with you!

"Fast and reliable"

Billy B on September 2024

With over 30 years of experience in the HVAC business, we are the experts you need to take care of your home or business. We handle everything from 24/7 emergency service to full installations and change outs. We will treat your home as we would treat our own. Give Select Mechanical Service a call today, we look forward to working with you!

"Fast and reliable"

Billy B on September 2024


Avatar for M & R Mechanical Services

M & R Mechanical Services

4.96(
12
)
Approved Pro

M & R Mechanical Services

4.96(
12
)
Approved Pro
Customers say: True professional
15 local quotes requested
66 years of experience

M & R Mechanical Services is a leader in providing the absolute best mechanical services by creating a successful alliance with customers through the delivery and execution of our high quality services, solutions and installations. Our goal is to be the company that will meet all of your mechanical needs. Our promise is to build a long lasting partnership through our responsiveness and technical expertise. Customer satisfaction is priority number 1. Through our growth, we hire and train quality employees who will provide the highest level of professionalism and customer satisfaction. As we grow, we will continue to give back to the community.

"Recently, during the cold spell, our boiler began acting up, turning on intermittently with just a little nudge each day. After reaching out to several companies for estimates, we chose M&R to replace our 50-year-old boiler. Tom was the first to arrive to assess the situation and provide an estimate. Once we decided to move forward, M&R was responsive and punctual with their appointments. The team handling the installation consisted of Dex, Jake, Josh, and Tony. They were professional, respectful of our property, and made sure to clean up the area around the boiler. The installation was completed in one day. Tony also stopped by twice to check on the progress and made adjustments to sync up our zones. We are very happy with the work and professionalism of the entire team and are glad to recommend M&R to anyone in need of heating repair or replacement. "

Art T on February 2025

M & R Mechanical Services is a leader in providing the absolute best mechanical services by creating a successful alliance with customers through the delivery and execution of our high quality services, solutions and installations. Our goal is to be the company that will meet all of your mechanical needs. Our promise is to build a long lasting partnership through our responsiveness and technical expertise. Customer satisfaction is priority number 1. Through our growth, we hire and train quality employees who will provide the highest level of professionalism and customer satisfaction. As we grow, we will continue to give back to the community.

"Recently, during the cold spell, our boiler began acting up, turning on intermittently with just a little nudge each day. After reaching out to several companies for estimates, we chose M&R to replace our 50-year-old boiler. Tom was the first to arrive to assess the situation and provide an estimate. Once we decided to move forward, M&R was responsive and punctual with their appointments. The team handling the installation consisted of Dex, Jake, Josh, and Tony. They were professional, respectful of our property, and made sure to clean up the area around the boiler. The installation was completed in one day. Tony also stopped by twice to check on the progress and made adjustments to sync up our zones. We are very happy with the work and professionalism of the entire team and are glad to recommend M&R to anyone in need of heating repair or replacement. "

Art T on February 2025


Avatar for East Coast Mechanical Inc

East Coast Mechanical Inc

4.74(
81
)
Approved Pro

East Coast Mechanical Inc

4.74(
81
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
123 local quotes requested

Formed in 1994 by Norm Wium, East Coast Mechanical Inc. has become one of the preeminent Trane Comfort Specialist Dealers in the area. We specialize in residential renovation and replacements along with residential/light commercial construction and service. Located at 1187 Highland Avenue in Cheshire, we have a complete fabrication shop, office and service parts inventory on site. We offer 24-hour service, maintenance agreements and, of course, free evaluations and heat loss calculations for comfort system installations. Additional email - [email protected].

"Perfect as I expected and more. East Coast installed a central air system and a ductless heating and calling system in my house. They were much affordable than their competitor."

Halim E on August 2023

Formed in 1994 by Norm Wium, East Coast Mechanical Inc. has become one of the preeminent Trane Comfort Specialist Dealers in the area. We specialize in residential renovation and replacements along with residential/light commercial construction and service. Located at 1187 Highland Avenue in Cheshire, we have a complete fabrication shop, office and service parts inventory on site. We offer 24-hour service, maintenance agreements and, of course, free evaluations and heat loss calculations for comfort system installations. Additional email - [email protected].

"Perfect as I expected and more. East Coast installed a central air system and a ductless heating and calling system in my house. They were much affordable than their competitor."

Halim E on August 2023


Avatar for Tyler Heating, Air Conditioning and Refrigeration LLC

Tyler Heating, Air Conditioning and Refrigeration LLC

4.72(
119
)
Approved Pro

Tyler Heating, Air Conditioning and Refrigeration LLC

4.72(
119
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
74 local quotes requested

To a home or business owner in Connecticut, having an effective, efficient, and reliable HVAC system in place is vital. Our summers are hot, and the winters get plenty cold, and that means your equipment needs to be able to keep up if you intend to remain comfortable. That requires the attention and care of heating and cooling contractors that are a cut above. We strive to be absolutely exceptional in all regards! In order to do so, we offer Carrier® products as well as a customized and customer-focused approach to our services. We deliver a team that is knowledgeable, professional, friendly, and above all, one that puts you first. For complete HVAC repair, installation, and maintenance services call or message Tyler Heating, Air Conditioning, Refrigeration LLC!

"Arrived the same day, replaced leaking unit. Very professional and neat."

Paul H on September 2022

To a home or business owner in Connecticut, having an effective, efficient, and reliable HVAC system in place is vital. Our summers are hot, and the winters get plenty cold, and that means your equipment needs to be able to keep up if you intend to remain comfortable. That requires the attention and care of heating and cooling contractors that are a cut above. We strive to be absolutely exceptional in all regards! In order to do so, we offer Carrier® products as well as a customized and customer-focused approach to our services. We deliver a team that is knowledgeable, professional, friendly, and above all, one that puts you first. For complete HVAC repair, installation, and maintenance services call or message Tyler Heating, Air Conditioning, Refrigeration LLC!

"Arrived the same day, replaced leaking unit. Very professional and neat."

Paul H on September 2022


AIR, Inc.

4.40(
293
)
Approved Pro

AIR, Inc.

4.40(
293
)
Approved Pro
Customers say: Quick response
78 local quotes requested
34 years of experience

Since 1991 AIR, Inc. has been installing heating and Air Conditioning systems for thousands of satisfied clients. Our Ratings and Reviews prove why most people choose AIR, Inc. We offer our services to residential homeowners, if you own a home and need help call us today!

"job not done yet"

Carl P on October 2025

Since 1991 AIR, Inc. has been installing heating and Air Conditioning systems for thousands of satisfied clients. Our Ratings and Reviews prove why most people choose AIR, Inc. We offer our services to residential homeowners, if you own a home and need help call us today!

"job not done yet"

Carl P on October 2025


Avatar for Precise HVAC Home Services

Precise HVAC Home Services

5.00(
2
)
Approved Pro

Precise HVAC Home Services

5.00(
2
)
Approved Pro
Customers say: Quick response
270 local quotes requested
17 years of experience

We take great pride in offering the best possible experience with our expertise, quality, and customer service. In order to understand the needs and expectations of our clients, we make every effort to work and communicate with everyone in a professional manner. It is our mission to exceed our clients expectations by providing excellent workmanship and complete customer satisfaction, from the start of each project to its completion. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"My AC was not working Precise came out and fixed the problem . I was very pleased with the service and professionalism. I will be using for all my maintenance and repair needs."

Anna S on August 2024

We take great pride in offering the best possible experience with our expertise, quality, and customer service. In order to understand the needs and expectations of our clients, we make every effort to work and communicate with everyone in a professional manner. It is our mission to exceed our clients expectations by providing excellent workmanship and complete customer satisfaction, from the start of each project to its completion. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"My AC was not working Precise came out and fixed the problem . I was very pleased with the service and professionalism. I will be using for all my maintenance and repair needs."

Anna S on August 2024

Showing 1-10 of 36
Heating Oil questions, answered by experts

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.

There are several common types of HVAC systems that you may have, including split systems, hybrid HVAC, duct-free systems, packaged heating and air, geothermal heating, or even portable units for heating or cooling. If you aren’t sure which type is in your home or are looking to install something different, you should consult an HVAC pro to determine which option is right for your heating and cooling needs.

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

Regular inspections, loop flushing, and checking heat exchangers help extend system lifespan.

Yes, technicians check refrigerant levels, loop performance, and system calibration for peak efficiency.

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.