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Verified Reviews for Boiler Installation pros in Mercerville, NJ

*The Angi rating for Boiler Installation companies in Mercerville, NJ 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 Mercerville, NJ 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 December 11, 2025

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Avatar for Len The Plumber Heating & Air, LLC

Len The Plumber Heating & Air, LLC

4.00(
9
)
•Approved Pro

Len The Plumber Heating & Air, LLC

4.00(
9
)
•Approved Pro
29 years of experience
Emergency services offered

Len The Plumber Heating & Air, LLC is a leading plumbing and drain company serving New Jersey. Our certified professional plumbers are available same day to assist residential customers in Burlington County and Camden County. Our knowledgeable plumbers have years of experience dealing with a wide variety of plumbing issues including plumbing repairs, drain cleaning, water heaters, well systems, heating systems, sewer, water, and gas lines. We’re open 7 days a week with no extra charge on evenings or weekends!

"Did not go well at all with Len the Plumber was over charged and feel scammed, Len the Plumber, Technician Len Feldman started approx. 12pm until 3pm most of time going over the cost, taking pictures and finding everything possible that needed to be done and presented 10-page contract. Len Feldman (Technican) assessed the problem that was a leaking outside faucet that he explained froze over the winter and needed to be replaced. While water was leaking he did not turn off the inside valve and requested to have water company (Trenton Water Works) come out and turn off water by the main water line. TWW came out several times but could not find the line and sent out a third construction worker to locate the water line. Meantime Len left his personal contact # and promised to return as soon as the main water line was shut off. When Water Works returned on 6/25 could not reach Len, but was able to locate the main water line Len finally called back and said it would be ok he would be able to turn the water off was currently in Mays Landing that is approx. 65 miles away and could not return 6/25 but would be at my home to complete the job 6/26 am. After 9am no call no Len, I called again several times when finally able to reach him at around 9:30am, said he spoke to Supervisor and could not do anything until the main water line was completely shut off. I called Len the Plumber office spoke to Office Manager Cathy#610-616-3377 she said would try to get someone out asap, by later in the afternoon no return call from Cathy. At this point and 2 days later for an emergency it was time to find another Plumber and I cancelled everything at Len the Plumber. The Plumber came out Friday 6/27 completed the entire job within 1 hour, turned off the inside valve connected to the outside leak immediately as well as water to install the same job Len the Plumber contracted to do that, Len said would take at least 6 hours. Main Water Line never had to be touched!!! I am appalled with Len the Plumber that I could trust thru Angi's List with a good reliable repetition. This company had no consideration about leaving me and my family including my 88-year-old handicapped mother without running water for days, all he was concerned about was how much commission he could make off someone in a vulnerable situation."

Sharon C on July 2025

Len The Plumber Heating & Air, LLC is a leading plumbing and drain company serving New Jersey. Our certified professional plumbers are available same day to assist residential customers in Burlington County and Camden County. Our knowledgeable plumbers have years of experience dealing with a wide variety of plumbing issues including plumbing repairs, drain cleaning, water heaters, well systems, heating systems, sewer, water, and gas lines. We’re open 7 days a week with no extra charge on evenings or weekends!

"Did not go well at all with Len the Plumber was over charged and feel scammed, Len the Plumber, Technician Len Feldman started approx. 12pm until 3pm most of time going over the cost, taking pictures and finding everything possible that needed to be done and presented 10-page contract. Len Feldman (Technican) assessed the problem that was a leaking outside faucet that he explained froze over the winter and needed to be replaced. While water was leaking he did not turn off the inside valve and requested to have water company (Trenton Water Works) come out and turn off water by the main water line. TWW came out several times but could not find the line and sent out a third construction worker to locate the water line. Meantime Len left his personal contact # and promised to return as soon as the main water line was shut off. When Water Works returned on 6/25 could not reach Len, but was able to locate the main water line Len finally called back and said it would be ok he would be able to turn the water off was currently in Mays Landing that is approx. 65 miles away and could not return 6/25 but would be at my home to complete the job 6/26 am. After 9am no call no Len, I called again several times when finally able to reach him at around 9:30am, said he spoke to Supervisor and could not do anything until the main water line was completely shut off. I called Len the Plumber office spoke to Office Manager Cathy#610-616-3377 she said would try to get someone out asap, by later in the afternoon no return call from Cathy. At this point and 2 days later for an emergency it was time to find another Plumber and I cancelled everything at Len the Plumber. The Plumber came out Friday 6/27 completed the entire job within 1 hour, turned off the inside valve connected to the outside leak immediately as well as water to install the same job Len the Plumber contracted to do that, Len said would take at least 6 hours. Main Water Line never had to be touched!!! I am appalled with Len the Plumber that I could trust thru Angi's List with a good reliable repetition. This company had no consideration about leaving me and my family including my 88-year-old handicapped mother without running water for days, all he was concerned about was how much commission he could make off someone in a vulnerable situation."

Sharon C on July 2025

Avatar for Horizon Services

Horizon Services

4.42(
76
)
•Approved Pro

Horizon Services

4.42(
76
)
•Approved Pro
Customers say: Super punctual
855 local quotes requested
38 years of experience

Horizon Services is the region’s largest and most well respected plumbing, heating and air conditioning company, with nearly 600 employees serving tens of thousands of homeowners throughout Delaware, Southeastern Pennsylvania, Southern New Jersey, and Northeastern Maryland. After a quarter of a century in business, Horizon Services remains fully committed to setting the industry standard for customer service, installation, and focusing on things that are important to busy homeowners: respect for their time, their home and their property; up-front pricing, and an unconditional 100% money back guarantee.

"Peter was exceptional at his job, very knowledgeable. Inform me each step of the way during the process, very professional."

Keisha W on August 2025

Horizon Services is the region’s largest and most well respected plumbing, heating and air conditioning company, with nearly 600 employees serving tens of thousands of homeowners throughout Delaware, Southeastern Pennsylvania, Southern New Jersey, and Northeastern Maryland. After a quarter of a century in business, Horizon Services remains fully committed to setting the industry standard for customer service, installation, and focusing on things that are important to busy homeowners: respect for their time, their home and their property; up-front pricing, and an unconditional 100% money back guarantee.

"Peter was exceptional at his job, very knowledgeable. Inform me each step of the way during the process, very professional."

Keisha W on August 2025

Avatar for Gold Medal Service

Gold Medal Service

4.64(
442
)
•Approved Pro

Gold Medal Service

4.64(
442
)
•Approved Pro
Customers say: Quick response
49 years of experience
Free onsite estimate

Plumbing, HVAC, and electrical systems make your house livable. One minor issue with any of these systems can put your home at a standstill. In case you find yourself in this unfortunate situation, know that you can count on Gold Medal Service. For over 24 years, our company has been taking care of the homes of New Jersey residents through our top quality plumbing, HVAC, and electrical services. We are available 24 hours a day, 7 days a week to address even the most mind-boggling issues of your in-home equipment. From repairs, installations, and upgrades, our technicians are known for getting the job done right every time. We also provide upfront pricing with a full description of the service before commencing work to avoid any surprises down the line.

"Extremely happy with the level of expertise, the time taken to explain the issues and working within our budget to get things working."

Bill H on July 2023

Plumbing, HVAC, and electrical systems make your house livable. One minor issue with any of these systems can put your home at a standstill. In case you find yourself in this unfortunate situation, know that you can count on Gold Medal Service. For over 24 years, our company has been taking care of the homes of New Jersey residents through our top quality plumbing, HVAC, and electrical services. We are available 24 hours a day, 7 days a week to address even the most mind-boggling issues of your in-home equipment. From repairs, installations, and upgrades, our technicians are known for getting the job done right every time. We also provide upfront pricing with a full description of the service before commencing work to avoid any surprises down the line.

"Extremely happy with the level of expertise, the time taken to explain the issues and working within our budget to get things working."

Bill H on July 2023

Avatar for West Shore Home Philadelphia

West Shore Home Philadelphia

4.88(
136
)
•Approved Pro

West Shore Home Philadelphia

4.88(
136
)
•Approved Pro
Super Service Award
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
1043 local quotes requested

To accomplish our mission, we have implemented a simple approach that will restore the beauty of your home while significantly reducing your energy bills - and we get it done in just one day! From start to finish, the West Shore Window & Door, Inc., experience is engineered to bring happiness to every home. The health and safety of our customers and employees is a top priority. Our team is following all CDC guidelines so we can provide you with the fast and convenient home improvements. We are also offering free virtual design consultations! Schedule your free consultation today.

"Very good experience. Nick and Kay were very polite and considerate. They even replaced some rotting wood in the wall. The shower looks great. I highly recommend."

Mick W on August 2025

To accomplish our mission, we have implemented a simple approach that will restore the beauty of your home while significantly reducing your energy bills - and we get it done in just one day! From start to finish, the West Shore Window & Door, Inc., experience is engineered to bring happiness to every home. The health and safety of our customers and employees is a top priority. Our team is following all CDC guidelines so we can provide you with the fast and convenient home improvements. We are also offering free virtual design consultations! Schedule your free consultation today.

"Very good experience. Nick and Kay were very polite and considerate. They even replaced some rotting wood in the wall. The shower looks great. I highly recommend."

Mick W on August 2025

Mister Service

4.79(
17
)
•Approved Pro

Mister Service

4.79(
17
)
•Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
31 years of experience

Mister Service is a local family owned and operated appliance repair company with over 21 years experience. We service all major brands of Washers, Dryers, Refrigerators, Ranges/Ovens, Heating, Air Conditioning and more. If your looking for fast, reliable service at a competitive price than we can help! By choosing Mister Service, you will be guaranteed professional work done by highly trained and certified technicians who understand how to do the right job. All Repairs are fully guaranteed in writing. Ask about our discounts!!

"I thought my refrigerator died so I was very upset. I went off a recommendation from a friend and I am so glad I did. Scott was very professional and courteous and had my refrigerator back up and running quickly. He really seemed to care which is something that is missing in service nowadays. Great job and I would highly recommend him to all my friends and family. Excellent value and excellent service."

Karen K on August 2021

Mister Service is a local family owned and operated appliance repair company with over 21 years experience. We service all major brands of Washers, Dryers, Refrigerators, Ranges/Ovens, Heating, Air Conditioning and more. If your looking for fast, reliable service at a competitive price than we can help! By choosing Mister Service, you will be guaranteed professional work done by highly trained and certified technicians who understand how to do the right job. All Repairs are fully guaranteed in writing. Ask about our discounts!!

"I thought my refrigerator died so I was very upset. I went off a recommendation from a friend and I am so glad I did. Scott was very professional and courteous and had my refrigerator back up and running quickly. He really seemed to care which is something that is missing in service nowadays. Great job and I would highly recommend him to all my friends and family. Excellent value and excellent service."

Karen K on August 2021

Avatar for Basement Medics, LLC

Basement Medics, LLC

4.96(
46
)
•Approved Pro

Basement Medics, LLC

4.96(
46
)
•Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
38 years of experience

Basement Medics provides waterproofing services to homeowners in Bucks County, Montgomery County, Mercer County, Central & Southern New Jersey. For the quality and level of service we provide with our Basement Waterproofing System ( Ask about our 10 & 10 system) NO ONE CAN COMPARE. Basement Medics offers basement waterproofing, crawlspace waterproofing, French drains, Battery backup pumps, Water powered backup pumps, Structural repairs, & basement remodeling, . With over 40 years of masonry construction and waterproofing experience, no one else in this industry can compare. Please feel free to navigate our site for additional information regarding how we can service your basement needs. Call today and speak with the owner NOT a salesmen. www.Basementmedics.com Been in business since 1987

"The owner thoroughly explained the job he was going to do and showed the materials he would use. He called me himself to set up the appointment. His team was mannerly and each did his own job. The team worked well together and completed the job in one day. I was amazed! The owners, father and son, were here with the team the whole time. They even hauled away some items I wanted to get rid of and offered to come back to move things back into.place. in addition, the price was much less than I expected and was started and completed within a few days of the initial contact."

Marcella T on August 2021

Basement Medics provides waterproofing services to homeowners in Bucks County, Montgomery County, Mercer County, Central & Southern New Jersey. For the quality and level of service we provide with our Basement Waterproofing System ( Ask about our 10 & 10 system) NO ONE CAN COMPARE. Basement Medics offers basement waterproofing, crawlspace waterproofing, French drains, Battery backup pumps, Water powered backup pumps, Structural repairs, & basement remodeling, . With over 40 years of masonry construction and waterproofing experience, no one else in this industry can compare. Please feel free to navigate our site for additional information regarding how we can service your basement needs. Call today and speak with the owner NOT a salesmen. www.Basementmedics.com Been in business since 1987

"The owner thoroughly explained the job he was going to do and showed the materials he would use. He called me himself to set up the appointment. His team was mannerly and each did his own job. The team worked well together and completed the job in one day. I was amazed! The owners, father and son, were here with the team the whole time. They even hauled away some items I wanted to get rid of and offered to come back to move things back into.place. in addition, the price was much less than I expected and was started and completed within a few days of the initial contact."

Marcella T on August 2021

Basement Waterproofing Specialists

4.32(
442
)
•Approved Pro

Basement Waterproofing Specialists

4.32(
442
)
•Approved Pro
Customers say: Quality work
210 local quotes requested
16 years of experience

Our personnel make up the complete collection of the best in the industry with decades of experience. We are a small family-owned business, not a giant corporation. We treat you like family and that's the difference! We pride ourselves on being the most professional family-owned business in our industry. We employee the highest caliber employees and use the best quality products available. We are fully licensed Home Improvement Contractors in every state we serve with the goal of leading the forefront of innovation in all that we do and setting the standard in this trade. We were the first to: Conduct mold remediation while simultaneously waterproofing. Offer lifetime warranties for our waterproofing services for the life of the structure. Offer lifetime warranties for the sump pumps. (We know they will not last a lifetime; it is a free replacement for our customers and our appreciation of their business). Clean out basement crawlspaces and garages while waterproofing.

"The job inside was done. However the drainage put in outside has turned our yard into a swimming pool. We once had a pipe draining to the creek and this was a perfect solution to the rains/weather. These guys came in and put a round small cylinder well. Water pumps up into our yard turning it into a swamp. Called them to come and see the problem they created. Their response $2900 to fix THEIR DAMAGE. I WOULD NEVER RECCOMEND THIS COMPANY!!"

Mike F on June 2025

Our personnel make up the complete collection of the best in the industry with decades of experience. We are a small family-owned business, not a giant corporation. We treat you like family and that's the difference! We pride ourselves on being the most professional family-owned business in our industry. We employee the highest caliber employees and use the best quality products available. We are fully licensed Home Improvement Contractors in every state we serve with the goal of leading the forefront of innovation in all that we do and setting the standard in this trade. We were the first to: Conduct mold remediation while simultaneously waterproofing. Offer lifetime warranties for our waterproofing services for the life of the structure. Offer lifetime warranties for the sump pumps. (We know they will not last a lifetime; it is a free replacement for our customers and our appreciation of their business). Clean out basement crawlspaces and garages while waterproofing.

"The job inside was done. However the drainage put in outside has turned our yard into a swimming pool. We once had a pipe draining to the creek and this was a perfect solution to the rains/weather. These guys came in and put a round small cylinder well. Water pumps up into our yard turning it into a swamp. Called them to come and see the problem they created. Their response $2900 to fix THEIR DAMAGE. I WOULD NEVER RECCOMEND THIS COMPANY!!"

Mike F on June 2025

Avatar for WC Fallows Plumbing Services

WC Fallows Plumbing Services

4.78(
192
)
•Approved Pro

WC Fallows Plumbing Services

4.78(
192
)
•Approved Pro
Super Service Award
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
57 local quotes requested

Specializing in AFFORDABLE residential underground sewer and water main service repair and replacement We look forward to the opportunity to earn your business!!!

"My main sewer line went. It was a Sunday afternoon. I got two quotes that both cost $10k. Fallows saved me thousands. I was up and running the next day. Even finished in the rain and after dark so I had a lawn in time for Thanksgiving. Can’t recommend them enough. "

Tracie M on November 2025

Specializing in AFFORDABLE residential underground sewer and water main service repair and replacement We look forward to the opportunity to earn your business!!!

"My main sewer line went. It was a Sunday afternoon. I got two quotes that both cost $10k. Fallows saved me thousands. I was up and running the next day. Even finished in the rain and after dark so I had a lawn in time for Thanksgiving. Can’t recommend them enough. "

Tracie M on November 2025

Avatar for Five Star Bath Solutions of Central NJ

Five Star Bath Solutions of Central NJ

4.90(
15
)
•Approved Pro

Five Star Bath Solutions of Central NJ

4.90(
15
)
•Approved Pro
Customers say: Quick response
108 local quotes requested
2 years of experience

At Five Star Bath Solutions, we understand that your bathroom deserves to be customized to you and your lifestyle. We offer a thorough product selection, in addition to installation capabilities for a variety of renovation projects, including one-day bathroom renovations, shower conversions, bathtub replacements, walk-in bathtubs and accessories installation. Five Star Bath Solutions is advancing the bathroom renovation industry through innovative technology, custom products and attention to customer service. Using innovative software, Five Star Bath Solutions professionals will deliver a detailed estimate for your bathroom renovation project. We believe in setting standards for how projects are estimated, installed and completed. We look forward to earning your business!

"Had the shower conversion over 2 weeks and it was not cheap. Water is on the floor every time I take a shower. I have tried putting the doors in opposite ways and still my floor is wet. Called and still waiting for them to come back?????"

PHIL C on October 2025

At Five Star Bath Solutions, we understand that your bathroom deserves to be customized to you and your lifestyle. We offer a thorough product selection, in addition to installation capabilities for a variety of renovation projects, including one-day bathroom renovations, shower conversions, bathtub replacements, walk-in bathtubs and accessories installation. Five Star Bath Solutions is advancing the bathroom renovation industry through innovative technology, custom products and attention to customer service. Using innovative software, Five Star Bath Solutions professionals will deliver a detailed estimate for your bathroom renovation project. We believe in setting standards for how projects are estimated, installed and completed. We look forward to earning your business!

"Had the shower conversion over 2 weeks and it was not cheap. Water is on the floor every time I take a shower. I have tried putting the doors in opposite ways and still my floor is wet. Called and still waiting for them to come back?????"

PHIL C on October 2025

Avatar for Premier Home Pros, LLC

Premier Home Pros, LLC

3.93(
83
)
•Approved Pro

Premier Home Pros, LLC

3.93(
83
)
•Approved Pro
Customers say: Quality work
276 local quotes requested
3 years of experience

Premier Home Pros specializes in full bathroom remodels and installs finely crafted bathtubs and showers in as little as one day. With maintenance-free solutions and a variety of stunning designs to match your style, getting your dream bathroom has never been easier and more affordable. All of our products our backed by a full lifetime and service warranty program to offer customers the last system they will ever need. Get a FREE design consultation and transform your bathroom into a space that's not only functional, beautiful.

"Truly awful experience, the one or 2 day jobs turned into 6 visits. The first installers workmanship was completely awful, gaps, leaks, broken pieces etc. 2nd was better but still left with a leak into floor below, returned again and fixed it but doors still aren't right and he admitted the frame wasn't level and plumb but didn't fix it. At this point we are done, not wasting anymore time, calling real professionals now, lesson learned, avoid these guys at all costs! "

Eric R on December 2025

Premier Home Pros specializes in full bathroom remodels and installs finely crafted bathtubs and showers in as little as one day. With maintenance-free solutions and a variety of stunning designs to match your style, getting your dream bathroom has never been easier and more affordable. All of our products our backed by a full lifetime and service warranty program to offer customers the last system they will ever need. Get a FREE design consultation and transform your bathroom into a space that's not only functional, beautiful.

"Truly awful experience, the one or 2 day jobs turned into 6 visits. The first installers workmanship was completely awful, gaps, leaks, broken pieces etc. 2nd was better but still left with a leak into floor below, returned again and fixed it but doors still aren't right and he admitted the frame wasn't level and plumb but didn't fix it. At this point we are done, not wasting anymore time, calling real professionals now, lesson learned, avoid these guys at all costs! "

Eric R on December 2025

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Showing 1-10 of 227
Install Boiler questions, answered by experts

When winter rolls around, and you turn the heat on for the first time in a year, it’s normal to sense a light odor. This could smell a little like burning because some dust has gathered in the heating unit over the warm months and will fade away shortly after. However, there are some smells you should watch out for and take caution around: an egg-like sulfur smell or an electrical burn odor would indicate there’s something wrong. Turn it off and call a professional for maintenance as soon as possible. 

Most home boilers will need an expansion tank. That’s because these boilers are closed-loop systems, where the water is trapped. An expansion tank is needed when the boiler heats the water and it expands, allowing air to condense in the tank to make room for the water. Other types of boilers don’t use an expansion tank, such as traditional steam boilers, but these aren’t as common. And hot water tanks may be able to use a pressure release valve instead. When in doubt, call in a pro to take a look.

On average, you’ll need about two gallons of oil per day to heat your house when it’s 50 degrees Fahrenheit outside. Most oil tank capacity is about 275 gallons, and heating your house with two gallons of oil per day will last about four and a half months. This consumption will vary depending on the climate and average temperature in your location. For example, if the winters are longer and colder where you live, you’ll probably need to refill your oil tank at least once to get through the winter.

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.

Probably not. Moving a boiler to a new location is a very different prospect from replacing it in the same spot, and significantly more expensive. Plus, boilers are typically carefully positioned in proximity to pipes and radiators when installed. Homeowners may want to move boilers to free up space, prevent freezing problems that have happened in winter, or solve a noise issue—but it’s a much more costly proposition.

The Mercerville, NJ 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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