How Much Does a Plumber Charge to Install a Boiler?

Are you considering the installation of a new boiler but need clarification on the associated costs? Installing a boiler may sound like a daunting prospect, but having a reliable plumbing contractor by your side in today’s world can make all the difference.

Not only will they provide expert advice and high-quality installation, but they’ll tell you just how much it’ll cost to get that sweet, warm radiator flowing into your home.

So, what should you expect to pay for this essential home service? Let’s take a closer look at how much a plumber charge for boiler installation.

From overall hourly rates and mark-ups for materials to assessing efficiency options, we have the complete guide on finding your perfect fit for installing your next boiler system with confidence.

How Much Does it Cost to Install a Boiler?

Figuring out a boiler replacement cost is different from the installation cost. Generally, installing a standard efficiency model (80%–89% AFUE) can range from $3,000 to $6,000.

At the higher end of the spectrum are high-efficiency condensing boilers (90%+ AFUE, Annual Fuel Utilization Efficiency), which can run anywhere between $6,000 and $12,000.

But that’s only part of the equation – you also need to factor in which brand you’d like to purchase, your BTU needs, and whether or not there are components of your existing heating system that could be reused.

The average boiler installation cost is around $5,820, typically between $3,664 and $8,292.

Factors that Influence Boiler Installation Costs

Several factors can affect the overall cost of installing a boiler. Here are some of the most common:

Boiler Type

Boiler type can drastically affect the total price tag. For example, non-condensing boilers are generally considered the most affordable, while a system or a condensing boiler is considered more expensive.

A Heat-only and a non-condensing boiler work best with smaller systems but may not be suitable for homes with high hot water demand or multiple bathrooms. A condensing boiler is a great option for larger properties since it is more energy-efficient than other models and can produce plenty of hot water.

Boiler Fuel

Boilers come in numerous types, including gas boilers, oil boilers, solid-fuel-fired, and electric options. Each of these has its different boiler replacement cost.

Gas-fired and oil-fired boilers are more expensive to purchase and install than solid fuel or electric models, as they require more complex systems for safe venting.

Electric boilers are often cheaper to install than oil or gas models because they aren’t connected to the chimney system. However, their higher energy consumption can lead to increased operating boiler cost.

Solid fuel boilers have less expensive installation costs since they don’t require extra parts like chimneys or exhaust fans, making it easier for your wallet when you need new electric boilers installed quickly.

Boiler Size

The size of your boiler also impacts how much a plumber will charge to install it. Larger boilers require more work and materials and thus will cost more.

Boilers come in various sizes, from small wall-mounted units to large floor-standing models. Choosing the right size for your particular home and usage can help you save cash in the long run.


Installing a boiler requires the expertise of trained HVAC technicians, and unfortunately, labor can quickly become a hefty line item when budgeting for your installation.

Before installation begins, get an estimate from your local professional – typically, you can expect to pay around $75 to $200 an hour.

Some companies may charge a flat rate depending on the project’s complexity. If it takes more than one day of work? Get ready to dig deeper into those pockets because costs range from $1,500 to $2,500 or even higher.


Depending on local regulations, plumbing permits may be required to install a boiler. Depending on your installation’s complexity and your permit’s boiler cost, your installation cost can increase.

Permits for boiler installation usually run between $50 to $300, depending on where you are and whether it’s an existing home or a new build. It’s always a great idea to plan by knowing what permits you need and how much they might cost so you can include them in your project budget.

Different types of Systems and Installation Prices

  1. Standard/Conventional Boilers

Standard boilers are a popular and cost-effective choice for many homeowners. They work by quickly heating the water stored in their pipes, making it easily accessible for daily tasks like showering, washing dishes, and laundry.

When it comes to boiler cost, installation for these units range from around $2200 to $7000. Large homes with floor heating systems will find that these high-efficiency boilers are the ideal choice to meet their needs. Plus, they’re easy to use and maintain, so you can enjoy maximum convenience with minimal effort.

  1. Combination Boilers

A Combi boiler is an excellent option for small homes or apartments that need instant hot water. They work by combining the boiler and water heater into one, eliminating the need for a storage tank.

Boiler installation costs for a combi boiler range from $2000 to $3000, making this an efficient way to get hot water on demand.

  1. System Boilers

System boilers are an economical choice when installing a boiler. They have an upfront boiler cost of about $1,500 for a new boiler. System boilers provide a highly convenient way of maintaining hot water throughout the home.

As they keep high-pressure hot water in a sealed cylinder, multiple taps around your home can be used at the same time without experiencing any drop in water pressure. They don’t require additional tanks or cylinders to run them – saving space and need for boiler replacement.

  1. High-Efficiency Boilers

A high-efficiency new boiler works by heating water quickly and efficiently, cutting energy costs and preventing the need for boiler replacement. These boilers have an efficiency of up to 98%, which makes them much more efficient than standard boilers (which go up to 80% efficient).

A High-efficiency boiler starts at $6,000 and can run up to $11,000. It can still be worth investing in one in cooler climates where conserving heat is essential.

For those in mild climates who can get away with a lower efficiency level, standard boiler prices average out between $3,000 and $6,000.

  1. Propane or Gas Boilers

Propane boilers or a natural gas boiler is the best option for those living in rural areas. While some areas may not have access to natural gas, propane is an excellent alternative.

The cost to replace a boiler tends to be mid-range to high-end compared to electric, oil boilers or steam boilers. Most propane boiler installations range from around $4,000 to $512,000.

Additional Costs to Consider

When budgeting for a boiler installation, there are two additional costs you must keep in mind.


Sometimes, you may have to add ductwork, ranging from $3,000 to $7,500 for 300 linear feet. Large homes could mean paying up to $15,000 for more ducts per linear foot.

Before you start shivering at the thought of an expensive installation bill, remember boilers usually really don’t need ducts. They tend to use water pipes instead. So unless yours requires new ductwork, this won’t be something you need to factor into your overall installation costs.

Tank Installation or Replacement

For many homes, it is necessary to purchase and install a new hot water heater tank to provide adequate hot water to meet the household’s needs. The boiler replacement cost may prove high but it’s worth it.

If a tank is needed, this adds considerably higher costs to installation since tanks range from $200 – $2,000+ depending on their size and brand of tank chosen.

Installing or replacing a new boiler may be more cost-effective than repairing an old one – mainly if the unit is over 15 years old.

Upgrading Insulation

Installing a new boiler system is an exciting upgrade to any home, but before you install your new system, you should consider the additional cost of upgrading insulation.

In some cases, you can save money by only replacing the insulation in certain areas of your home, such as the attic, crawl space, or basement.

It’s worth looking into, as increasing your insulation could help keep heat inside and reduce how hard your boiler system has to work. On average, installing insulation costs around $5,200 – get a free quote for yours today to see if it is worth investing in.

New Gas Lines or Pipes

Installing a new boiler requires careful consideration of the additional costs, including gas lines or pipes. Depending on the type chosen and if the new pipe is necessary, you can expect to pay anywhere from $120 to $1350. Generally speaking, the average cost for a no-dig installation is around $550.

For each linear foot installed, anticipate paying between $15 to $25 for labor and materials. PVC or HDPE piping would be your least expensive choice but will still run you around 50 cents to 1.50 per linear foot.

Luxury materials such as copper and CSST will cost more upfront but have the potential to last longer and save more money in the long term. Galvanized steel and black iron also provide a long-lasting alternative that won’t break the bank, just 2 dollars to 8 dollars per linear foot.

Cost of Installing a Residential Boiler Yourself

Installation for a new boiler on your own may seem like an appealing money saver. The cost of not doing it right is much higher. If you don’t install the boiler correctly, you could be looking at expensive repairs and even worse damage to your property.

A qualified professional will guarantee a secure installation; they’ll also check for safety reasons and assess any other needs your boiler might have before they begin work.

It’s worth checking around for recommendations from other homeowners in your area. This way you know you are getting trustworthy and reliable service – it is the most cost-effective way of ensuring that your boiler works for years to come.

DIY Boiler Installation Cost vs. Hiring a Pro

Those in need of a new boiler can find it overwhelming, especially when the bills start to come in. With all the questions that come up, Should I do it myself or hire a pro? How much does it cost to replace a boiler?—it can feel like an endless cycle.

Fortunately, weighing DIY boiler installation costs versus hiring a professional is surprisingly easy. Installing your boiler undoubtedly saves money on labor, with most DIY jobs averaging about $200 in materials and tools.

However, an experienced contractor will have access to more efficient parts and labor-saving resources, helping you save time and money in the long run.

They’ll also guarantee their work, whereas your work won’t be covered under any warranty if something goes wrong after installation is complete.

So while doing it yourself may look like the easier(and cheaper) choice up front, investing in professional help could pay off dividends.

How to Save on Boiler Replacement Costs

Replacing your boiler can require a significant outlay of funds, but there are ways to save when replacing your boiler.

  • Consider shopping around for quotes from different suppliers and getting feedback from friends or family who have recently had their boilers replaced.
  • You may even find special offers with various providers, such as discounts or interest-free credit.
  • It can also be worth exploring grants available to help cover the cost, although these schemes vary depending on where you live.

So do your research before committing to replacing your boiler. Taking advantage of these methods significantly reduces the amount you need to spend when replacing your boiler.

Talk to Our Local Plumber to Get a Free Quotation

From now on, any plumbing job that requires getting a boiler installed should be handled by professionals to ensure safety and efficiency. Remember to research thoroughly before you hire a contractor, or you could be overspending. Finding the right plumber for your particular needs can make all the difference during installation and maintenance.

If you find yourself in an emergency plumbing situation, do not hesitate. Contact Emergency Plumbing Squad. We provide 24/7 services that will ensure the problem is taken care of quickly and professionally at an affordable price. No matter your plumbing needs, we ensure they are taken care of safely and appropriately without further delay.


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