There’s no shortage of combi boilers on the market, but this variety leaves a variety of questions. If you’re narrowing down your search, Noritz is a good place to start. But how much does a Noritz combi boiler cost?

After over 15 years of installing and servicing combi boilers in Los Angeles County, we’ve nailed down a price range for how much combi boilers cost on their own and to install. While every home is different, the price typically falls within a specific range.

By the end of this article, you’ll have a firm grasp on how much a Noritz combi boiler costs, how much to expect regarding installation costs, and what factors impact installation costs. With this information, you can avoid surprises during estimates and installation.

Before we jump in, and for those interested in getting a better idea of how Noritz positions itself within the industry, check out our Noritz Tankless Water Heater Guide.

Let’s jump in with the cost of a Noritz combi boiler.

How Much Does a Navien Combi Boiler Cost?

There’s no realistic way to factor in every home size in a single article. Homes throughout Los Angeles vary greatly. From the square footage to the number of fixtures demanding hot water, the price of a combi boiler will vary depending on these factors.

What we can do, though, is give you a price range for what to expect. You can use this range as a reference for when a technician comes to your home to provide an estimate and present your options.

A Noritz combi boiler costs between $3,500 to $6,000. Where your final cost sits depends on your home’s needs. Some of the main factors that inform the cost of your Noritz combi boiler are the number of fixtures in your home, the space heating demand, and hot water demand.

After deciding with a technician which model is right for your home, there are a few factors to consider regarding installation cost.

How Much Does It Cost to Install a Noritz Combi Boiler?

Similar to the cost of the combi boiler itself, there’s no way to provide a concrete figure for how much installation will run for your home. But you can typically expect combi boiler installation to flex between $12,000 to $26,000, including the cost of the combi boiler.

This range is impacted by a few factors. Your home and its needs will play a large role in determining your final investment cost.

Let’s run through some of these factors to give you a better idea of what to expect during the installation cost.

Factors that Impact Installation Costs

As we mentioned before, there’s no way to pinpoint how much a combi boiler installation will cost you without a detailed inspection of your home. The following information is meant to set an expectation of what might drive your installation lower or higher on the previously mentioned installation cost scale.

Home Size

Home size includes the square footage and the number of fixtures that demand hot water. Installation cost will be most heavily informed by your home’s needs. Aspects of installation like additional piping runs, the number of communication boxes needed, and more will be influenced by your home size.

We’ve typically seen that smaller homes need less in terms of additional equipment and therefore cost less. Larger homes can require complicated builds, which in turn drive installation costs up.


Additional piping is one of the main factors driving installation costs. This will vary from home to home based on square footage and the location of your home’s existing heating components.

For instance, if your combi boiler needs to be relocated, you’ll also need more piping and fittings.


It’s not uncommon for homeowners to relocate their combi boiler when upgrading. If this is the case with your home, you can expect installation costs to reflect that. This aspect ties directly back to piping and venting since your technician will have to rework your system to accommodate the change.

Location can impact installation between $1,200 and $3,500.

Communication Boxes

Communication boxes talk to your thermostat to ensure your system provides you with the maximum amount of comfort. These units can handle up to three heating zones in your home. Larger homes may need more communication boxes, which will influence your total investment.

In general, communication boxes can run between $900 and $2,800, depending on home size.

Additional Equipment

Due to the complexity of combi boilers providing space and water heating in one package, additional equipment may be required. Components like electronic valves, air separators, and expansion tanks will inform the cost of installation. You can expect these parts to carry a cost between $600 and $1,200.

Wrapping Up Noritz Combi Boiler Cost

Now you’re up to speed on the cost of a Noritz combi boiler, how much installation can cost, and what factors play into the final price. With this information, you can dive into your research with a solid idea of what to expect when shopping around for a Noritz combi boiler in Los Angeles County.

With over 15 years of experience, we can confidently say that every home is different. Pricing out a combi boiler is difficult without an on-site inspection, but we hope the information provided helps build a strong foundation for your research,

If you’re interested in connecting with a technician about installing a Noritz combi boiler or another brand we carry, get in touch using one of the buttons below or book an appointment through our easy-to-use online scheduler.

If, after reading about the cost of a Noritz combi boiler, you’re wondering if there are any alternatives, there are! Download our Noritz Tankless Water Heater Guide to get the full scope of what Noritz has to offer.

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