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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon90
    Verified heating oil services reviews

Find Heating oil pros in Williamsville

"Sierra did a great job. Ran new electric and installed our Govee lights. Even took the time to help us download app on phone so we can control the lights. "

Patty G on November 2025

Powering your world, building your future. Experts in electrical solutions and construction services.

"Sierra did a great job. Ran new electric and installed our Govee lights. Even took the time to help us download app on phone so we can control the lights. "

Patty G on November 2025


Avatar for T-Mark Plumbing, Heating, Cooling & Electric

T-Mark Plumbing, Heating, Cooling & Electric

4.72(
569
)
Approved Pro

T-Mark Plumbing, Heating, Cooling & Electric

4.72(
569
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
417 local quotes requested

T-Mark Plumbing, Heating, Cooling & Electric was founded over 25 years ago to provide friendly, efficient service to residents and businesses across Buffalo and Western New York. The largest family-owned and operated business in WNY that understands the challenge and frustrations that can occur with plumbing, HVAC, and electrical emergencies. Community voted the # 1 company in 716 and available 24 hours a day 7 days a week. Our day one focus has never changed: 100% customer satisfaction. We take the time, every time, to ensure our customers are left happy and satisfied with not only the quality of our work, but with the entire T-Mark experience.

"Friendly. Helpful. On time. Affordable. "

Ferdinand S on November 2025

T-Mark Plumbing, Heating, Cooling & Electric was founded over 25 years ago to provide friendly, efficient service to residents and businesses across Buffalo and Western New York. The largest family-owned and operated business in WNY that understands the challenge and frustrations that can occur with plumbing, HVAC, and electrical emergencies. Community voted the # 1 company in 716 and available 24 hours a day 7 days a week. Our day one focus has never changed: 100% customer satisfaction. We take the time, every time, to ensure our customers are left happy and satisfied with not only the quality of our work, but with the entire T-Mark experience.

"Friendly. Helpful. On time. Affordable. "

Ferdinand S on November 2025


THE COOL FACTORY HEATING & COOLING LLC

5.00(
12
)
Approved Pro

THE COOL FACTORY HEATING & COOLING LLC

5.00(
12
)
Approved Pro
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
4 years of experience

Welcome to THE COOL FACTORY HEATING & COOLING LLC! In business since 2021, we are a full service heating and cooling company who takes great pride in the quality of our work and guarantees customer satisfaction. We specialize in all services for both residential and commercial properties, and no job is too big or too small. Serving Amherst and its surrounding towns, be sure to give us a call today!

"Amazing job! Our gutters were thoroughly cleaned. The work was done quickly. We have already hired this company for another job on our house."

Robyn S on April 2024

Welcome to THE COOL FACTORY HEATING & COOLING LLC! In business since 2021, we are a full service heating and cooling company who takes great pride in the quality of our work and guarantees customer satisfaction. We specialize in all services for both residential and commercial properties, and no job is too big or too small. Serving Amherst and its surrounding towns, be sure to give us a call today!

"Amazing job! Our gutters were thoroughly cleaned. The work was done quickly. We have already hired this company for another job on our house."

Robyn S on April 2024


HVAC PROS

New on AngiNew on Angi
Approved Pro

HVAC PROS

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

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of HVAC services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of HVAC services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!


"Mike Nichols - the owner, did a top notch job from the time he came over to evaluate the leaking from my 28 yr old furnace, estimate repair cost and options to replace it, to doing the actual install yesterday with his associate Rick. Extremely professional, polite, personable, thorough, extremely detailed resulting in a very, very clean install. Mary from Mike’s office is also very friendly and efficient! Highly recommend Mike and Precision Heating & Cooling!! Adding to the review I did in December 2023 after the furnace install. Today (5/23/2024)Precision Heating & Cooling installed the new air conditioner as it needed to wait for the warner weather. Once again, Mike Nichols and his assistant did a top-notch job. Completed it within the estimated time window, very clean job from the furnace to the outside AC unit. Due to Mike's obsession with ensuring any wires, pipes etc he installs are very neatly tied down, he even tied down some long hanging cable wires I was just resting on the hanging ceiling. Now all tightly, neatly secured!! Highly recommend Mike Nichols and his company."

Michael Z on May 2024

residential heating & cooling installation, commercial heating & cooling installation. We use Amana products, ask for details or visit their website at www.amana.com/heating-ac

"Mike Nichols - the owner, did a top notch job from the time he came over to evaluate the leaking from my 28 yr old furnace, estimate repair cost and options to replace it, to doing the actual install yesterday with his associate Rick. Extremely professional, polite, personable, thorough, extremely detailed resulting in a very, very clean install. Mary from Mike’s office is also very friendly and efficient! Highly recommend Mike and Precision Heating & Cooling!! Adding to the review I did in December 2023 after the furnace install. Today (5/23/2024)Precision Heating & Cooling installed the new air conditioner as it needed to wait for the warner weather. Once again, Mike Nichols and his assistant did a top-notch job. Completed it within the estimated time window, very clean job from the furnace to the outside AC unit. Due to Mike's obsession with ensuring any wires, pipes etc he installs are very neatly tied down, he even tied down some long hanging cable wires I was just resting on the hanging ceiling. Now all tightly, neatly secured!! Highly recommend Mike Nichols and his company."

Michael Z on May 2024


Avatar for Belknap Heating & Cooling Inc

Belknap Heating & Cooling Inc

4.77(
44
)
Approved Pro

Belknap Heating & Cooling Inc

4.77(
44
)
Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
138 local quotes requested

At Belknap, our staff makes the difference. For more than 45 years, people have turned to Belknap for prompt and courteous service, a knowledgeable sales staff, and an installation department that is second to none. Belknap began in Lockport, New York in 1967 and has had a strong association with Lennox Industries from the start. Lennox Industries has honored Belknap with its highest award, The Circle of Excellence, given to only 12 dealers on the East Coast. With customer satisfaction as the driving force, Belknap Heating & Cooling, Inc. prides itself on remaining abreast of industry trends while staying ahead of the competition. Belknap has an A+ rating with the Better Business Bureau and offers service and installation for furnaces, boilers, air conditioners, hot water tanks and generators. We offer many HVAC services including boiler & furnace repair. Belknap is in the comfort business – to provide comfort for the environment you’re in and carries several brands of systems. It’s only through a thorough evaluation of your home, business and personal comfort needs that recommendations will be made to help you determine which system is right for you. Emergency Service Phone: (716) 688-1728.

"Had a emergency and called their emergency number. A tech (Corey) called within 20 mins. We ended up scheduling for the next morning. Corey showed up on time and was able to get the boiler up and running. Both the young lady who answered the emergency line and Corey were polite and a pleasure to deal with. Will definitely use them again if the need arises."

Kevin H on November 2020

At Belknap, our staff makes the difference. For more than 45 years, people have turned to Belknap for prompt and courteous service, a knowledgeable sales staff, and an installation department that is second to none. Belknap began in Lockport, New York in 1967 and has had a strong association with Lennox Industries from the start. Lennox Industries has honored Belknap with its highest award, The Circle of Excellence, given to only 12 dealers on the East Coast. With customer satisfaction as the driving force, Belknap Heating & Cooling, Inc. prides itself on remaining abreast of industry trends while staying ahead of the competition. Belknap has an A+ rating with the Better Business Bureau and offers service and installation for furnaces, boilers, air conditioners, hot water tanks and generators. We offer many HVAC services including boiler & furnace repair. Belknap is in the comfort business – to provide comfort for the environment you’re in and carries several brands of systems. It’s only through a thorough evaluation of your home, business and personal comfort needs that recommendations will be made to help you determine which system is right for you. Emergency Service Phone: (716) 688-1728.

"Had a emergency and called their emergency number. A tech (Corey) called within 20 mins. We ended up scheduling for the next morning. Corey showed up on time and was able to get the boiler up and running. Both the young lady who answered the emergency line and Corey were polite and a pleasure to deal with. Will definitely use them again if the need arises."

Kevin H on November 2020


Avatar for Rick's Repair Work

Rick's Repair Work

5.00(
31
)
Approved Pro

Rick's Repair Work

5.00(
31
)
Approved Pro
Super Service Award
Customers say: Quick response
403 local quotes requested
4 years of experience

Owner/operator home repair business. 21 years experience. High-quality work and reliable professional service. Full service handyman. BBB Accredited Honest and respectful. I service large parts of Niagara and Erie countys. I do a little bit of most everything on homes from painting and drywall to minor electrical and plumbing work. I install floors, ceramic tile, woodwork, windows, and doors. Interior and exterior work, general maintenance, repairs, assembly, and much more. If you are unsure about something, just ask or schedule a day for me to come out and discuss options with you. I offer free estimates/price quotes. I am reliable and do high-quality work that is done right the first time. Hourly and Flat rates are available. I accept cash, check, or credit cards and have low affordable pricing. Schedule with me today and get your project done. Call or text. I can give general prices from pictures as well to make things easier. 7️⃣1️⃣6️⃣➖️3️⃣4️⃣4️⃣➖️5️⃣7️⃣7️⃣

"Great! Very nice guy and got the job done. "

Madeline S on December 2025

Owner/operator home repair business. 21 years experience. High-quality work and reliable professional service. Full service handyman. BBB Accredited Honest and respectful. I service large parts of Niagara and Erie countys. I do a little bit of most everything on homes from painting and drywall to minor electrical and plumbing work. I install floors, ceramic tile, woodwork, windows, and doors. Interior and exterior work, general maintenance, repairs, assembly, and much more. If you are unsure about something, just ask or schedule a day for me to come out and discuss options with you. I offer free estimates/price quotes. I am reliable and do high-quality work that is done right the first time. Hourly and Flat rates are available. I accept cash, check, or credit cards and have low affordable pricing. Schedule with me today and get your project done. Call or text. I can give general prices from pictures as well to make things easier. 7️⃣1️⃣6️⃣➖️3️⃣4️⃣4️⃣➖️5️⃣7️⃣7️⃣

"Great! Very nice guy and got the job done. "

Madeline S on December 2025


Avatar for Cellino Plumbing

Cellino Plumbing

4.35(
226
)
Approved Pro

Cellino Plumbing

4.35(
226
)
Approved Pro
Customers say: Super punctual
117 local quotes requested
29 years of experience

Cellino Plumbing, Heating, Cooling & Electric is a trusted home services company serving Western New York. With decades of experience, we specialize in residential plumbing, heating, air conditioning, and electrical work. Our locally owned and operated team is committed to delivering reliable service, upfront pricing, and top-notch customer care. Whether it’s a routine repair or a full system installation, Cellino’s licensed technicians bring comfort and peace of mind to every home we serve.

"Terrible, technician left and I still had a leaky sink. Said that I would have to make another appt. “Bullied” me into getting a $800.00 garbage disposal two months prior to avoid pipes clogging, two months later, same clogging !!! Technician went in my basement and told me I needed a new sump pump. Cellino is trying to get as much money from me as they can, without finishing their repair work. Never again. Horrible customer service and technicians have absolutely no idea what they are doing."

Cara C on May 2024

Cellino Plumbing, Heating, Cooling & Electric is a trusted home services company serving Western New York. With decades of experience, we specialize in residential plumbing, heating, air conditioning, and electrical work. Our locally owned and operated team is committed to delivering reliable service, upfront pricing, and top-notch customer care. Whether it’s a routine repair or a full system installation, Cellino’s licensed technicians bring comfort and peace of mind to every home we serve.

"Terrible, technician left and I still had a leaky sink. Said that I would have to make another appt. “Bullied” me into getting a $800.00 garbage disposal two months prior to avoid pipes clogging, two months later, same clogging !!! Technician went in my basement and told me I needed a new sump pump. Cellino is trying to get as much money from me as they can, without finishing their repair work. Never again. Horrible customer service and technicians have absolutely no idea what they are doing."

Cara C on May 2024


Thulin Enterprises

5.00(
1
)
Approved Pro

Thulin Enterprises

5.00(
1
)
Approved Pro
57 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!

"Switched the base out fast and was available to do it asap."

Jesse L on August 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!

"Switched the base out fast and was available to do it asap."

Jesse L on August 2025


G.B. Home Services

New on AngiNew on Angi
Approved Pro

G.B. Home Services

New on AngiNew on Angi
Approved Pro
29 local quotes requested
15 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

Showing 1-10 of 19
Heating Oil questions, answered by experts

Leaks, poor airflow, reduced efficiency, and loop blockages are common problems requiring service.

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

NATE-certified technicians may charge slightly higher service fees compared to non-certified technicians. This is because NATE certification signifies a higher level of expertise and professionalism, often leading to more efficient and effective HVAC repairs and installations. While the upfront cost may be marginally higher, NATE-certified technicians can potentially save you money in the long run by reducing energy consumption, preventing frequent breakdowns, and extending the life span of your HVAC system. When looking for a local HVAC company to hire, it never hurts to ask about NATE certifications.

There are three main types of heat pumps. An air-source heat pump system is the most common and has two parts—an indoor air handler unit and an outdoor heat pump unit. A ductless heat pump system functions similarly to an air-source heat pump system but doesn’t need ductwork to distribute the air. A geothermal heat pump system pulls heat from the ground to help heat your home.

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.

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.