Installing a Cast Iron Radiator Cost

Cast iron radiators are a fan favourite among homeowners who are on the hunt for a way to merge enduring style with reliable, low-energy heating.

In this guide, we're going to lay out the lowdown on what you can expect to pay for installing a cast iron radiator. We'll cover the typical costs, the factors that drive the price up or down, and give you a rough idea of how long the process usually takes.

We'll also be having a look at whether these radiators are really worth shelling out for, and what you can expect in terms of the installation process itself. Plus, we'll give you some advice on how to get a quote from a qualified heating engineer that actually means something.

How Much is a Cast Iron Radiator?

Cast iron radiators are a popular choice in the UK. They’re favoured for their excellent heat retention, timeless design, and compatibility with period property interiors. These types of radiators have been around for over a century and are compatible with a range of properties.

They are available in a wide range of styles and generally won’t take longer than 1-2 days to install.

On average, you'll pay £500 to £800 for a cast iron radiator and its installation, but the cost of the job is based on numerous factors. First, you will need to select a radiator design that fits. Some hand-made radiators of a premium finish can set you back up to £3,000, and that’s just for supply.

On the other hand, there are cheap options under £500. This is especially true if you are open to buying and installing reclaimed radiators.

To be clear, factors determining the cost of installing a cast iron radiator include:

• The selected radiator design
• The number of radiators required for the size of the property
• Where are you located in the UK?
• How easy the property is to access

The total cost will vary depending on the complexity of the installation and whether you are replacing an existing radiator or installing a new one.

With this in mind, it’s important to remember that every cast iron installation job is different and, therefore, this is reflected in pricing and budget. The cost of everything involved will determine what you’ll pay, so be open to varying quotes.

Cast Iron Radiator Prices

Cast Iron Radiator Supply Costs

As we said before, when you go out and buy a cast-iron radiator, whether online or from one of those specialist shops, you'll find a few things that can drive up the price. For example, going big on the radiator will only end up costing more, given the amount of material and other components required to make it.

We've run through the key things you'll need to bear in mind when choosing your radiators and how they could impact the final bill. If you decide to change the shape or size of your existing radiator, you may need additional pipework or even have to drain your entire system, which can significantly increase installation costs.

When it comes to choosing what finish and colour you want, cream white is a really popular vintage look that does look great. But because of its light colour, you may end up seeing more visible bits and bobs that would otherwise be hidden, which might mean you need to touch it up more often to keep it looking nice.

To help you get the perfect radiator sorted, we've got an online tool that lets you build your own custom radiator, so you can choose exactly the size, finish and accessories you want.

Of course, with things like bleed valves and vents that come with your radiator, just make sure you follow the instructions that come with it when it arrives and fit it properly so it's safe to use.

We’ve highlighted the factors to be mindful of when choosing your radiators and detailed how they can affect pricing:

Branding and Design

In the UK, there are many suppliers of cast iron radiators, with some suppliers having a strong reputation for their designs. When buying from such brands, you can expect to pay a premium. This is often a guarantee of a quality product that will stand the test of time.

Section Count

The number of sections (or heating columns) found in a cast iron radiator design will influence the overall cost a lot. This is because where there are more sections, you can expect a greater heat output. Larger radiators require more craftsmanship, so you pay the price.

New vs Reclaimed

Depending on whether you choose a new unit or a reclaimed/second-hand unit, pricing will vary between them. There is the option to choose supreme finishes with custom colours and so on, which can be expensive. On the other hand, reclaimed radiators may require restoration or show visible surface damage, so they will be cheaper.

Extra Features

Depending on whether you require wall stays, floor brackets or specific colouring, overall supply prices will vary.

Delivery and Handling

Finally but not least, Cast iron radiators are very heavy and often require specialist transport. Expect to pay an additional fee for this.

Additional Costs of Cast Iron Radiators

Once you have decided on your new cast iron radiator design and quantity required, there are a few additional costs to keep in mind. Depending on the complexity of the job, some of the following extras may be required.

Radiator Valves (manual or thermostatic):

Most installations will require new valves. Thermostatic radiator valves (TRVs) are the more expensive option, but allow you to have better control over the temperature of your home. On the other hand, a manual valve still provides control, but it will be somewhat limited.

Wall Mounting Brackets or Floor Stays

Next, depending on which radiators you’ve selected and their size, for installation, you may require extra supports. Brackets and floor stays are used to keep heavy radiators in place, mounted against walls.

Pipework Alterations

If you have to move any of the existing pipes in your house for new radiators, this will increase the overall costs. If you live in an older home, this is most likely the case. A plumber can advise you on this.

Delivery Charges Due to Radiator Weight

Due to their weight, often, cast iron radiators will require specialist handling and delivery, which will set you back an additional fee.

Disposal of Old Radiators

If you plan to get rid of all existing radiators, this is a job in itself. You may need to pay for their removal and disposal.

Cleaning and Flushing the System Before Installation

To ensure your new radiators work efficiently, the central heating system may need to be flushed to remove sludge or debris. This is an extra step, but it can help prevent damage and improve heat output.

Labour Costs and Timescales for Cast Iron Radiators

Nobody likes their home to be disrupted due to work being carried out, that’s a fact. You’ll be pleased to know that it typically only takes a day or two for cast iron radiators to be installed.

To help you plan better for the job, we’ve outlined what to expect in terms of labour costs and timescales below.

The cost of hiring a qualified plumber or heating engineer typically ranges from £150 to £250 per day. This breaks down to between £30 and £70 per hour.

Timescales for cast radiator installation will vary, as explained, depending on property size, accessibility, and radiator designs. For the installation of one cast iron radiator, you can expect the job to take a few hours to a day. For multiple radiators to be installed or more complex systems, you should allocate one to three days for the job.

Cast iron radiators are much heavier than standard steel models, so handling and mounting take longer. Older properties may also require additional pipework adjustments.

Cost Factors for Cast Iron Radiators

There are a number of factors that will impact the cost of having cast iron radiators installed in your property. Here’s a checklist to follow.

Number and Size of Radiators Required

The more radiators you require for your home, the higher the price will be overall. As mentioned, the hourly rate breaks down to £50 on average.

The Radiator’s Design

As discussed, some radiators are more expensive due to their premium design, while restored radiators are a lot cheaper to buy.

Paint or Finish

If you request a specific finish for your radiators, including custom colours, expect to pay more.

Heating System Setup (combi or traditional boiler)

The type of heating system you have can affect installation costs. Combi boilers tend to be simpler to connect to, whereas traditional systems with a hot water cylinder may require more work.

Accessibility of the Installation Area

If your radiators are going in hard-to-reach places, up flights of stairs, or in tight corners, installers may charge extra for the additional effort and time required.

Location of Property

Where you live in the UK can influence costs. Labour rates in London and the South East are generally higher than in other regions, so expect quotes to reflect this.

System Alterations like Flushing or Pipe Rerouting

Sometimes your existing pipework or central heating system needs adjustments before a new radiator can be fitted. Flushing the system, extending pipes, or rerouting connections will all add to the overall price.

Building Regulations Related to Cast Iron Radiators

In general, most radiator replacements will not require planning permission; however, you will need to review and comply with building regulations. There are a number of UK building regulations to keep in mind, and things can get complex if a larger heating system upgrade is necessary.

Listed buildings and homes within conservation areas require you to prioritise the unique character and heritage of the original building. This can sometimes complicate jobs such as radiator installation. Careful planning and the help of a conservation specialist are generally required.

You can find out more information by reading this Historic England article. In short, it states that:

• If there are original radiators located within the property already, these may be classed as historical features that require protection and preservation.
• Any works must minimise alterations to the original fabric of the property.
• Where possible, existing pipework should be utilised.
• Invasive chasing should be avoided.

Finally, you must comply with central heating safety and boiler efficiency standards, ensure that the work is carried out by a qualified professional, and that suitable wall or floor fixings are in place.

If you’re not certain as to whether you will require approval for your job, be sure to seek advice from a consultant.

Always ensure your system complies with Part L of UK Building Regulations, which covers heating and energy efficiency.

Types of Cast Iron Radiators

There are many different types of cast iron radiators to choose from:

Column Radiators (2–6 Columns)

Cast iron radiators are a classic choice for period homes and larger rooms, thanks to their timeless look and solid heat output. Whether you go for 2, 4, or 6 columns, they'll let you get the perfect balance of space and performance for your home.

The more columns you get, the more heat they'll give out, making them ideal for bigger areas. Plus, they hold heat really well, keeping your rooms toasty for longer

Ornate Victorian Designs

Victorian cast iron radiators really stand out with their intricate details and ornate design. They're a great way to bring some classic style into a period property and still get reliable heat output to keep you warm.

Yeah, they can be a bit pricier than other options and also heavier to put up, but if you want to really make a statement and keep your home's character, then they're a great choice

School-style or Hospital Radiators

If you're after something a bit more no-frills, then school-style or hospital radiators are a great option. They're designed to give a strong, reliable heat that you can really count on and are super easy to fit.

With a more understated look, they're great for places like hallways or kitchens where you don't want anything too flashy. Plus, they can be a bit more budget-friendly and will still last for ages with all the benefits of cast iron

Horizontal Radiators

If you want an even heat distribution across a room, then horizontal radiators are well worth a look. They work great in both old and new homes and can be fitted just beneath the windows or along a low wall.

They'll look great and give you a reliable heat output for medium to big spaces. The only thing to think about is you'll need enough wall space, and they do weigh a fair bit, which can add a bit to installation costs

Vertical Radiators

For homes with limited wall space, vertical cast iron radiators are a great option. Their upright design makes them perfect for small rooms or narrow walls and still gives a strong heat output.

It's worth bearing in mind, though, that they can be a bit on the pricier side and you might need to do some extra work on the pipework, but they're a really popular choice for modern homes all the same

Different types influence both aesthetic appeal and heating performance.

Alternative Types of Radiators

If you’re comparing options, consider the following radiator alternatives:

• Flat panel radiators: A slim, modern alternative to standard panel radiators, offering a clean look, good heat output, and straightforward installation.
• Steel panel radiators: Cheaper, lighter, and easier to install.
• Aluminium radiators: Fast heating, lightweight, but less heat retention.
• Column radiators: Available in modern steel or aluminium designs, offering a similar look to cast iron with a lower cost and lighter weight.
• Vertical radiators: A space-saving option for narrow walls, commonly made from steel or aluminium and suited to modern interiors.
• Electric radiators: Ideal where pipework is unavailable.
• Underfloor heating: Modern and efficient, but more expensive to install.

Cast iron remains the top choice for period homes and anyone wanting long-lasting heat retention and timeless style.

Hiring Contractors Checklist for Cast Iron Radiators

We understand that finding a heating engineer or plumber to install new cast-iron radiators can be daunting. With so many things to ensure are covered, it can be difficult to know where to begin. We’ve created a handy checklist that you can follow to find the best professional for the job.

• Are they Gas Safe registered or heating-system certified?
• Do they have experience fitting cast-iron radiators that are heavier or larger?
• Can they provide references or examples of previous work?
• Is the quote clear, itemised, and all-inclusive?
• Will they dispose of old radiators and flush the system?
• Do they offer a guarantee or warranty on parts and labour?

Always obtain at least 3 different quotes from various contractors to compare prices. You should ensure that you ask for a clear breakdown of costs so that you understand what you’re paying for. Finally, make sure you review client testimonials; this will provide a clear idea of their professionalism and skills.

Removing Cast Iron Radiators: Considerations and Costs

Removing an old or damaged cast-iron radiator involves several steps and is typically not a DIY job. You should also use a professional service for this. The process for removing these types of radiators includes:

• Draining down the heating system
• Carefully remove the radiator without damaging the walls or flooring.
• Lifting and carrying heavy units (often over 80–100kg)
• Disposing of or recycling the radiator
• Replacing with a new model or modern alternative
• The average cost will typically range from £100 to £250, depending on size and the complexity of the overall job.

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