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TRUSTED BY SIMI VALLEY, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.1k+
    Verified boiler installation services reviews

Verified Reviews for Boiler Installation pros in Simi Valley, CA

*The Angi rating for Boiler Installation companies in Simi Valley, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.

*The HomeAdvisor rating for Boiler Installation companies in Simi Valley, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.

Last update on October 30, 2025

Find Boiler installation pros in Simi Valley

Avatar for Payless Water Heaters & Plumbing Inc

Payless Water Heaters & Plumbing Inc

27919 Smyth Dr
4.43(
110
)
•Approved Pro

Payless Water Heaters & Plumbing Inc

27919 Smyth Dr
4.43(
110
)
•Approved Pro
Customers say: Super punctual
21 years of experience
Free onsite estimate

Payless Water Heaters provides Same day water heater Installation & Repair services. We also can install a New Tankless Water Heater the same day. We understand how important hot water is to your daily routine - Our team has over 30 years of combined industry-leading experience, which gives us greater insight into locating root problems and providing customized solutions. Unlike some technicians, we carefully survey the unit before starting any repairs. This allows us to accurately address the issue and create lasting solutions. As a Family owned and Locally operated business, we have deep roots in the community. Our mission is simple - provide the ultimate customer experience. This means always being on time, being professional, and being available, With upfront, honest pricing, and no extra charge for nights or weekends - If you're ready to get started, call (888)461-8249 if you need some help.

"Better than excellent. David was great. He explained all options, answered questions, completed the job faster than expected, and when it is time to replace my heater I will call on David and only David."

Georgia T on September 2025

Payless Water Heaters provides Same day water heater Installation & Repair services. We also can install a New Tankless Water Heater the same day. We understand how important hot water is to your daily routine - Our team has over 30 years of combined industry-leading experience, which gives us greater insight into locating root problems and providing customized solutions. Unlike some technicians, we carefully survey the unit before starting any repairs. This allows us to accurately address the issue and create lasting solutions. As a Family owned and Locally operated business, we have deep roots in the community. Our mission is simple - provide the ultimate customer experience. This means always being on time, being professional, and being available, With upfront, honest pricing, and no extra charge for nights or weekends - If you're ready to get started, call (888)461-8249 if you need some help.

"Better than excellent. David was great. He explained all options, answered questions, completed the job faster than expected, and when it is time to replace my heater I will call on David and only David."

Georgia T on September 2025

Avatar for Team Rooter, Inc.

Team Rooter, Inc.

11400 Luddington St
4.35(
26
)
•Approved Pro

Team Rooter, Inc.

11400 Luddington St
4.35(
26
)
•Approved Pro
Customers say: Quick response
197 local quotes requested
9 years of experience

Team Rooter offers quality rooter and plumbing services to our customers in the greater Los Angeles area. This has been our passion! For this reason, our TEAM of professional plumbers and technicians use the latest equipment and state-of-the-art technology to find, diagnose and repair rooter and plumbing problems for our residential and commercial customers. We treat you like part of our TEAM; more like a friend or a neighbor and we aim to bring you the best plumbing experience possible. Whether its a clogged drain or a main sewer line replacement, when you need your job done quickly and correctly at an affordable price; contact Team Rooter . We are your top choice for drain cleaning, sewer repair, waterline repair, and more.

"Evil scammers of the elderly ! These people are sick, taking advantage of seniors on a fixed income with a decline in cognitive thinking as well as Diabetic complications ! I am the homeowners caretaker and son, over 2yrs ago these SCAMMERS took $14000 from my dad to fix a clogged toilet ! ! ! I just found this out. They saw an easy target and ripped my dad off. Instead of snaking and pitting a camera down the toilet, they tore up the front yard. THEY DIDNT REPLACE ANYTHING ! They removed 1 of 2 Darin pipes. IDK why. THE IDIOTS also cut the discharge pipe for the pool [Expletive removed] U MORONS ! They then found a WATER LEAK under the driveway. WHY ARE YOU LOOkiNG FOR A WATER LEAK ! We wanted a toilet unclogged. The workers were [Expletive removed] and didn't even check to see if the clogg was fixed. BEWARE THEY SCAM THE ELDERLY ! ! The toilet never worked after all that. The other toilet is upstairs and is hard for my elderly parents to use. These guys are thrives, everyone contact them and ask why they treat our seniors like this. FIX MY [Expletive removed] TOILET !"

Ryan F on May 2025

Team Rooter offers quality rooter and plumbing services to our customers in the greater Los Angeles area. This has been our passion! For this reason, our TEAM of professional plumbers and technicians use the latest equipment and state-of-the-art technology to find, diagnose and repair rooter and plumbing problems for our residential and commercial customers. We treat you like part of our TEAM; more like a friend or a neighbor and we aim to bring you the best plumbing experience possible. Whether its a clogged drain or a main sewer line replacement, when you need your job done quickly and correctly at an affordable price; contact Team Rooter . We are your top choice for drain cleaning, sewer repair, waterline repair, and more.

"Evil scammers of the elderly ! These people are sick, taking advantage of seniors on a fixed income with a decline in cognitive thinking as well as Diabetic complications ! I am the homeowners caretaker and son, over 2yrs ago these SCAMMERS took $14000 from my dad to fix a clogged toilet ! ! ! I just found this out. They saw an easy target and ripped my dad off. Instead of snaking and pitting a camera down the toilet, they tore up the front yard. THEY DIDNT REPLACE ANYTHING ! They removed 1 of 2 Darin pipes. IDK why. THE IDIOTS also cut the discharge pipe for the pool [Expletive removed] U MORONS ! They then found a WATER LEAK under the driveway. WHY ARE YOU LOOkiNG FOR A WATER LEAK ! We wanted a toilet unclogged. The workers were [Expletive removed] and didn't even check to see if the clogg was fixed. BEWARE THEY SCAM THE ELDERLY ! ! The toilet never worked after all that. The other toilet is upstairs and is hard for my elderly parents to use. These guys are thrives, everyone contact them and ask why they treat our seniors like this. FIX MY [Expletive removed] TOILET !"

Ryan F on May 2025

Avatar for A&G Plumbing and Rooter

A&G Plumbing and Rooter

Located In Ventura County
5.00(
7
)
•Approved Pro

A&G Plumbing and Rooter

Located In Ventura County
5.00(
7
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1 years of experience

We specialize in plumbing services, repairs, inspections, installations, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"I was having issues with my kitchen facet. I gave A&G plumbing and rooter a call and they gave me a fair price and really appreciated them keeping the work area clean I would highly recommend them for any plumbing project."

Andrew M on December 2024

We specialize in plumbing services, repairs, inspections, installations, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"I was having issues with my kitchen facet. I gave A&G plumbing and rooter a call and they gave me a fair price and really appreciated them keeping the work area clean I would highly recommend them for any plumbing project."

Andrew M on December 2024

Avatar for VixFix

VixFix

5725 Reseda Blvd #33
No reviews yet

VixFix

5725 Reseda Blvd #33
No reviews yet
10 years of experience

All fields all trades no job too small no job too big day or night rain or shine holiday work Xmas decor lawn ornaments rent or buy

All fields all trades no job too small no job too big day or night rain or shine holiday work Xmas decor lawn ornaments rent or buy

Avatar for Dub Management Inc

Dub Management Inc

5416 Fair Ave #8313
5.00(
2
)

Dub Management Inc

5416 Fair Ave #8313
5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We deal with ALL plumbing issues. We can help you with a small leaky faucet to a main line replacement. Most important thing for us is for YOU to be happy!!

"The tech was super professional. Job was done very quickly and the price was reasonable. Will definitely hire again"

Olesea S on November 2024

We deal with ALL plumbing issues. We can help you with a small leaky faucet to a main line replacement. Most important thing for us is for YOU to be happy!!

"The tech was super professional. Job was done very quickly and the price was reasonable. Will definitely hire again"

Olesea S on November 2024

Avatar for Five Stars Builders

Five Stars Builders

6677 Santa Monica Boulevard
4.86(
7
)

Five Stars Builders

6677 Santa Monica Boulevard
4.86(
7
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

FiveStars Builders-General contractors. Dedicated to excellence with every job we undertake. Our commitment to quality craftsmanship and outstanding customer service sets us apart. Browse our services and get in touch today to schedule your free estimate. Experience the superior service you deserve!

"We recently had the pleasure of working with Five Star Builders for a backyard landscaping project, and we couldn’t be more impressed with their work. From start to finish, Itay, together with Marlene, Idallis and the rest of their team, handled every aspect of the project with professionalism and efficiency. They took care of all the necessary approvals, which saved us a lot of time and hassle. What stood out the most was how quickly the project was completed. The attention to detail and craftsmanship transformed our backyard into a beautiful space. While there is a minor issue with damage to the turf due to reflections from our windows, Itay continues to be proactive in addressing and resolving the situation, showing their commitment to customer satisfaction even after the project’s completion. Overall, we highly recommend Five Star Builders for any landscaping needs. Their expertise, responsiveness, and dedication make them a standout choice."

Daryl V on August 2024

FiveStars Builders-General contractors. Dedicated to excellence with every job we undertake. Our commitment to quality craftsmanship and outstanding customer service sets us apart. Browse our services and get in touch today to schedule your free estimate. Experience the superior service you deserve!

"We recently had the pleasure of working with Five Star Builders for a backyard landscaping project, and we couldn’t be more impressed with their work. From start to finish, Itay, together with Marlene, Idallis and the rest of their team, handled every aspect of the project with professionalism and efficiency. They took care of all the necessary approvals, which saved us a lot of time and hassle. What stood out the most was how quickly the project was completed. The attention to detail and craftsmanship transformed our backyard into a beautiful space. While there is a minor issue with damage to the turf due to reflections from our windows, Itay continues to be proactive in addressing and resolving the situation, showing their commitment to customer satisfaction even after the project’s completion. Overall, we highly recommend Five Star Builders for any landscaping needs. Their expertise, responsiveness, and dedication make them a standout choice."

Daryl V on August 2024

Avatar for MT's Handyman Service

MT's Handyman Service

258 Los Cabos Ln
5.00(
2
)

MT's Handyman Service

258 Los Cabos Ln
5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We specialize in handyman services, home repairs, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Great. Excellent"

Dave M on August 2024

We specialize in handyman services, home repairs, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Great. Excellent"

Dave M on August 2024

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Install Boiler questions, answered by experts

You save money on heating oil in a few ways:

  • Make sure your home is well insulated and sealed against drafts and heat leakage.

  • Use a thermostat that’s working properly and calibrated accurately.

  • Increase energy efficiency by insulating your basement and attic.

  • Turn down your thermostat a few degrees.

  • Program your thermostat to lower the heat when you’re not home.

  • Order heating oil during the off-season when prices are likely to be lower.

It can take anywhere from four hours to three days to replace a boiler with a new one. How long your particular boiler installation takes will depend on whether you need a gas line installed and if you’re switching to a new boiler system. 

Replacing a combination boiler or standard boiler with the same system should only take four to six hours. Meanwhile, switching from a conventional boiler system to a combination boiler system could take a few days.

The absence of heating or hot water, unusual noises like banging or gurgling, and visible water leakage are key signs. Abnormal boiler pressure, flame irregularities (for gas boilers), or pilot light issues may also signal trouble. Frequent cycling, soot or staining, and unusual odors, particularly gas-like smells, should not be ignored. Modern boilers often display error codes or lockout mode upon detecting issues. Uneven heating across radiators and rising energy bills without increased usage can further point to problems. Prompt attention to these signs is essential to prevent further damage and ensure safety.

An expansion tank must always be installed on the supply side, which is the side where the boiler sends water out to heat the systems. That placement allows the water to push against the air and condense properly as it is heated, then circulated through the system. Professional installers can recommend the best place on the supply side for an expansion tank.

A heat pump is more efficient than a boiler system, making it a popular choice for many homeowners across the country. Still, the boiler reigns supreme, with 8 million in the United States alone. Many people favor boilers despite their lower efficiency because they carry a lower price tag and less intensive installation. It all depends on your home’s infrastructure, your personal heating priorities, and your budget.

The Simi Valley, CA homeowners’ guide to boiler installation services

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

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