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TRUSTED BY HERCULES, CA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon1.3k+
    Verified boiler repairs reviews

Find Boiler repair pros in Hercules

Avatar for RG Construction

RG Construction

5.00(
4
)
Approved Pro

RG Construction

5.00(
4
)
Approved Pro
Free onsite estimate
Emergency services offered

We have been in the construction industry for over 10 years. From building ADUs, high-end kitchen remodels, bathroom remodels and home extensions, we have done just about everything under general construction. Our company prioritizes safety, quality and transparency.

"Me and my wife decided recently to get our kitchen remolded. After some time searching for the right guys to do the job we settled on RG Construction. Richard, who is the owner, is a great guy and super informative. He never left any question unanswered or left us uncertain about anything. His crew works quick, and they pay attention to the tiniest detail. They absolutely are worth every dollar and I would recommend RG Construction to any homeowner, and I for sure will be giving them a call back for any work I need done in the future. Me and my wife are absolutely in love with our remodel."

Jesse O on November 2025

We have been in the construction industry for over 10 years. From building ADUs, high-end kitchen remodels, bathroom remodels and home extensions, we have done just about everything under general construction. Our company prioritizes safety, quality and transparency.

"Me and my wife decided recently to get our kitchen remolded. After some time searching for the right guys to do the job we settled on RG Construction. Richard, who is the owner, is a great guy and super informative. He never left any question unanswered or left us uncertain about anything. His crew works quick, and they pay attention to the tiniest detail. They absolutely are worth every dollar and I would recommend RG Construction to any homeowner, and I for sure will be giving them a call back for any work I need done in the future. Me and my wife are absolutely in love with our remodel."

Jesse O on November 2025


Avatar for Caval Construction

Caval Construction

5.00(
7
)
Approved Pro

Caval Construction

5.00(
7
)
Approved Pro
Customers say: Quick response
7 years of experience
Free onsite estimate

Caval Construction 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.

"they are perfect and give them the highest rating possible."

Jason D on December 2024

Caval Construction 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.

"they are perfect and give them the highest rating possible."

Jason D on December 2024


Avatar for Ortega Plumbing & Rooter LLC

Ortega Plumbing & Rooter LLC

5.00(
3
)
Approved Pro

Ortega Plumbing & Rooter LLC

5.00(
3
)
Approved Pro
Super Service Award
3 years of experience
Free onsite estimate

Ortega Plumbing & Rooter LLC is a locally owned and owner operated plumbing business dedicated to serving residential and commercial customers in the Bay Area. With a focus on quality service and customer satisfaction, we offer a wide range of services including sewer and drain cleaning, hydro jetting, fixture replacement, and water heater replacement. Our experienced team is here to help you with any plumbing or drain emergencies, making the process as smooth as possible.

"Pedro handled a complicated water main repair/replacement. He and his team were very competent, calm, and professional. Pedro’s upbeat attitude, common sense and persistence were a perfect fit for our project. He gave a good price and kept at it until the job was done. I highly recommend Ortega Plumbing & Rooter!"

James O on April 2025

Ortega Plumbing & Rooter LLC is a locally owned and owner operated plumbing business dedicated to serving residential and commercial customers in the Bay Area. With a focus on quality service and customer satisfaction, we offer a wide range of services including sewer and drain cleaning, hydro jetting, fixture replacement, and water heater replacement. Our experienced team is here to help you with any plumbing or drain emergencies, making the process as smooth as possible.

"Pedro handled a complicated water main repair/replacement. He and his team were very competent, calm, and professional. Pedro’s upbeat attitude, common sense and persistence were a perfect fit for our project. He gave a good price and kept at it until the job was done. I highly recommend Ortega Plumbing & Rooter!"

James O on April 2025


Avatar for Tankless Plumbing Solutions

Tankless Plumbing Solutions

4.85(
31
)
Approved Pro

Tankless Plumbing Solutions

4.85(
31
)
Approved Pro
Super Service Award
Customers say: True professional
18 local quotes requested
2 years of experience

TANKLESS PLUMBING SOLUTIONS has over 25 years of plumbing experience and SPECIALIZES in tankless systems. Our comprehensive skillset includes piping water & gas lines, intake & exhaust ducting, GFCI protected electrical branch lines and sheetrock repair. Turnkey project completed to manufacturer's specifications and City code requirements. We recently partnered with Home Advisor to expand our business. We do a variety of plumbing projects and are committed to customer service with an attention to detail. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Tony and his crew were skilled, professional and did a wonderful job. When I listed the job on Angi, Tony responded within 20 minutes. He asked about the job, asked for some pictures and I had a solid quote within an hour. Our installation had some challenges and, instead of making these issues more complicated and jacking up the price like other contractors did, he quickly came up with sensible solutions at a fair price. The job was done in one day and our new tankless water heater is superb! I highly recommend Tony and Tankless Plumbing Solutions."

William N on October 2025

TANKLESS PLUMBING SOLUTIONS has over 25 years of plumbing experience and SPECIALIZES in tankless systems. Our comprehensive skillset includes piping water & gas lines, intake & exhaust ducting, GFCI protected electrical branch lines and sheetrock repair. Turnkey project completed to manufacturer's specifications and City code requirements. We recently partnered with Home Advisor to expand our business. We do a variety of plumbing projects and are committed to customer service with an attention to detail. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Tony and his crew were skilled, professional and did a wonderful job. When I listed the job on Angi, Tony responded within 20 minutes. He asked about the job, asked for some pictures and I had a solid quote within an hour. Our installation had some challenges and, instead of making these issues more complicated and jacking up the price like other contractors did, he quickly came up with sensible solutions at a fair price. The job was done in one day and our new tankless water heater is superb! I highly recommend Tony and Tankless Plumbing Solutions."

William N on October 2025


Harry Construction-Unlicensed Contractor

New on AngiNew on Angi
Approved Pro

Harry Construction-Unlicensed Contractor

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

Welcome to Harry Construction, proudly servicing Johnston, Iowa the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. Call us today! You will not be disappointed!

Welcome to Harry Construction, proudly servicing Johnston, Iowa the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. Call us today! You will not be disappointed!


Avatar for LB Plumbing Services - Unlicensed Contractor

LB Plumbing Services - Unlicensed Contractor

5.00(
3
)
Approved Pro

LB Plumbing Services - Unlicensed Contractor

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

LB Plumbing Services has built an excellent reputation for customer satisfaction by providing quick estimates, great attention to detail, and competitive pricing. We service both residential and commercial properties. We give you the peace of mind you need to give your home the attention it deserves. Call us today and let's get started!

"El servicio y el precio fueron excelentes y sobre todo fueron muy puntuales"

Sonia M on August 2023

LB Plumbing Services has built an excellent reputation for customer satisfaction by providing quick estimates, great attention to detail, and competitive pricing. We service both residential and commercial properties. We give you the peace of mind you need to give your home the attention it deserves. Call us today and let's get started!

"El servicio y el precio fueron excelentes y sobre todo fueron muy puntuales"

Sonia M on August 2023


Pedro Galvan Plumbing, Inc.

4.85(
17
)
Approved Pro

Pedro Galvan Plumbing, Inc.

4.85(
17
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
21 years of experience

Pedro Galvan Ramirez Plumbing, Inc., is the premier plumbing contractor in the Richmond Area. We finish every job to the customer's standards. Call today for a free quote!

"We are incredibly grateful to Pedro Galvan and his team for stepping in during a moment of urgent need. When our hot water system suddenly failed, leaving us without hot water for daily essentials, Pedro responded with a level of professionalism, clarity, and compassion that is truly rare. From the very first call, Pedro was attentive, transparent about pricing, and committed to solving the problem quickly. He provided us with the most cost-effective and honest quote out of several we obtained—and, even more importantly, was able to come almost immediately when others could not. His workmanship was precise, efficient, and tidy. It was clear we were in the hands of someone who genuinely takes pride in his craft. In a world where so many service professionals overpromise and underdeliver, Pedro Galvan delivers exactly what he promises—and does so with warmth, integrity, and a deep respect for his clients. We recommend him without hesitation to anyone needing plumbing services."

Nicola S on July 2025

Pedro Galvan Ramirez Plumbing, Inc., is the premier plumbing contractor in the Richmond Area. We finish every job to the customer's standards. Call today for a free quote!

"We are incredibly grateful to Pedro Galvan and his team for stepping in during a moment of urgent need. When our hot water system suddenly failed, leaving us without hot water for daily essentials, Pedro responded with a level of professionalism, clarity, and compassion that is truly rare. From the very first call, Pedro was attentive, transparent about pricing, and committed to solving the problem quickly. He provided us with the most cost-effective and honest quote out of several we obtained—and, even more importantly, was able to come almost immediately when others could not. His workmanship was precise, efficient, and tidy. It was clear we were in the hands of someone who genuinely takes pride in his craft. In a world where so many service professionals overpromise and underdeliver, Pedro Galvan delivers exactly what he promises—and does so with warmth, integrity, and a deep respect for his clients. We recommend him without hesitation to anyone needing plumbing services."

Nicola S on July 2025


Avatar for Quality Pump Service

Quality Pump Service

4.51(
47
)
Approved Pro

Quality Pump Service

4.51(
47
)
Approved Pro
Customers say: Quick response
22 local quotes requested
15 years of experience

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.

"Promptness in responses. Professional and courteous and did quality work! "

Jayson T on July 2025

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.

"Promptness in responses. Professional and courteous and did quality work! "

Jayson T on July 2025


Avatar for Ease HVAC

Ease HVAC

4.83(
23
)
Approved Pro

Ease HVAC

4.83(
23
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
16 years of experience

We are a small business with low overhead so we can pass the savings on to our homeowners. We work diligently to complete all service calls by offering evening hours throughout the week to fit your scheduling needs. With our many years of experience, you can feel comfortable that your heating and air needs are in good hands. Call us today to get your estimate on your next project!

"Amr was most professional & knowledgeable. He should be rewarded financially & considered to become a CEO for your company! He'd be excellent because he has started from the bottom. He has earned his way to the top! Millicent Mc Cormack 81 David Drive Moraga, CA 94556"

Millicent M on January 2021

We are a small business with low overhead so we can pass the savings on to our homeowners. We work diligently to complete all service calls by offering evening hours throughout the week to fit your scheduling needs. With our many years of experience, you can feel comfortable that your heating and air needs are in good hands. Call us today to get your estimate on your next project!

"Amr was most professional & knowledgeable. He should be rewarded financially & considered to become a CEO for your company! He'd be excellent because he has started from the bottom. He has earned his way to the top! Millicent Mc Cormack 81 David Drive Moraga, CA 94556"

Millicent M on January 2021


Avatar for Global Comfort Heating and Air

Global Comfort Heating and Air

4.85(
47
)
Approved Pro

Global Comfort Heating and Air

4.85(
47
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
16 years of experience

We are a family owned full service heating and air conditioning company. We pride ourselves on delivering professional service to our clients. We are experts in all areas of heating and cooling installation and repair. There is no job to big or to small so please give us a call!

"We chose repair of a very old air conditioning unit due to the cost of a new unit. It is working now but we have no guarantee of for how long. Global responded quickly and repaired the unit within hours."

Wayne B on July 2025

We are a family owned full service heating and air conditioning company. We pride ourselves on delivering professional service to our clients. We are experts in all areas of heating and cooling installation and repair. There is no job to big or to small so please give us a call!

"We chose repair of a very old air conditioning unit due to the cost of a new unit. It is working now but we have no guarantee of for how long. Global responded quickly and repaired the unit within hours."

Wayne B on July 2025

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Boiler Repair questions, answered by experts

Radiators are a popular home heating choice in older homes, but they are becoming less common in new-construction homes. According to a 2022 report by Elements Visual Capitalist, only around 1.3% of new single-family homes have radiators and similar heating systems, such as baseboard heating.

While they may not be as popular as they once were, radiators today come with more energy-efficient features that can make them practical for modern homeowners.

In general, it’s a good idea to bleed air from your heaters at the start of every cold season, before you move your boiler system back into active mode. Early fall is a common time for this task. However, some heating systems don’t need much manual bleeding because of automatic bleed vents and other components.

The best way to save money on home heating oil is to get large deliveries in the summer months when the prices are lowest. However, this method will only work if you have a separate storage tank or an unusually large primary tank. You can sometimes save money by opting into a delivery contract, as some companies offer set prices that they believe will sit at the average cost over the contract term. If the price of oil rises, you could enjoy some savings, but keep in mind that you might also pay a bit more if the price decreases.

After you receive your audit and report, review the findings and determine which of the prescribed changes you want to make to improve your home’s energy efficiency. Start by contacting the type of professionals recommended by the auditor who can help you remedy the issues discovered during the audit. Prioritize the projects by urgency, importance, and budget. Then, gather estimates from several professionals, remembering to verify any necessary licensing and experience information.

Common problems include leaks, low pressure, and inefficient heating. Regular maintenance prevents many issues.

The Hercules, CA homeowners’ guide to boiler repairs

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