What Is the Price of a Natural Gas Water Heater with Installation?
The average price for installing a gas water heater is around 500 €. To this price you would need to add 700 € if the home has no gas supply, and 500 € if you also need to install the flue outlet. Issuing a gas installation certificate has an average cost of 100 €.
The amounts are indicative and come from the original imported guide. The final budget depends on the scope, materials, and previous condition of the space.
Service Levels and Pricing
Choose the plan that best fits your situation and natural gas water heater installation needs.
Basic
Natural gas water heater installation in homes that already have gas supply and existing exhaust outlet. An economical and quick solution for replacements or repairs.
Standard
Complete installation with all necessary work: water heater, gas supply if needed, and exhaust outlet. Includes mandatory installation certificate. Our most popular option.
Premium
Comprehensive installation with all upgrades: high-efficiency water heater, complete gas and exhaust work, gas certificate, and post-installation service with extended warranty.
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Prices for natural gas water heaters with installation
See what homeowners usually pay for the most common tasks. Use these ranges to fine-tune your scope and avoid missing key items in your budget.
Install 5-liter gas water heater
400 €
Install 10-liter gas water heater
500 €
Install 12-liter gas water heater
600 €
Install 15-liter gas water heater
800 €
Install 20-liter gas water heater
1.000 €
Which gas water heater to choose? Aspects to consider with Reformia
The average price to install a gas water heater is around 500 €. To this price you would need to add 700 € if the property doesn't have any gas supply, and 500 € if a flue outlet also needs to be installed. Issuing a gas installation certificate costs an average of 100 €.
1. Property locationThe first thing to consider before choosing a water heater is the type of fuel available in the property, which is generally butane, propane, or natural gas, although the latter is not supplied in all geographic areas.
2. Type of property and number of peopleYou should also consider the type of use it will have, how many people will live in the property, how many hot water outlets are installed, how many showers per day will be needed. Based on these aspects, you'll choose a water heater with one capacity or another. If you opt for a water heater that's too large, you'll have unnecessary energy waste, and if it's smaller than needed, you won't get adequate hot water flow.
3. Water heater locationAvailable space is another crucial point, especially for ventilation purposes. Propane gas and natural gas water heaters need to be located in ventilated areas, although depending on whether the draft is forced or natural, the space can be larger or smaller. In the case of propane, you'll also need space for the tank, keeping in mind that you'll need to refill it periodically.
The average price to install a gas water heater is around 500 €. To this price you would need to add 700 € if the property doesn't have any gas supply, and 500 € if a flue outlet also needs to be installed. Issuing a gas installation certificate costs an average of 100 €.
What is usually included in a quote
Each professional may structure quotes differently, but most project budgets follow this logic.
Typically included
Often not included
Steps to install a natural gas water heater
The average price to install a gas water heater is around 500 €. To this price you would need to add 700 € if the property doesn't have any gas supply, and 500 € if a flue outlet also needs to be installed. Issuing a gas installation certificate costs an average of 100 €.
1. Assess the current condition of your home
The technician inspects the existing installation, pipes, and available spaces for the natural gas water heater. This assessment determines if adaptations are needed and affects the final budget, which ranges from 500 € to 2,000 € depending on your home's specific requirements.
2. Request quotes from certified installers
Contact at least three certified installers to compare quotes for natural gas water heater installation. The average price is 1,250 €, with basic options starting from 500 € and premium options up to 2,000 €, depending on equipment quality and brand.
3. Verify gas supply availability
Confirm that your home has access to the natural gas network and that existing connections are suitable. This verification is crucial for accurately budgeting the water heater installation, as lack of supply can significantly increase total costs.
4. Install the gas line if necessary
If gas piping doesn't exist or requires repair, the installer runs new lines from the main supply. This additional work can increase the budget, so it's important for the technician to indicate this when providing the initial quote between 500 € and 2,000 €.
What can change your final price
Even similar projects can end with different budgets. These are the factors that most often push costs up or down.
Existing gas supply availability
If the property does not have a natural gas connection, connecting from the municipal network will be necessary, which significantly increases the final budget by approximately 700 €.
Flue gas outlet installation
Installing gas evacuation piping and the external outlet has an average cost of 500 € when no previous system exists, making it one of the most labor-intensive tasks in the installation.
Heater type and power capacity
The equipment price varies considerably depending on the brand, model, and thermal capacity of the heater, ranging between 300 € and 800 € for the unit alone.
Certification and administrative procedures
Issuing the mandatory natural gas installation certificate costs approximately 100 € and is essential for the system's legal operation.
How much does it cost to install a gas water heater? Types of water heaters and budget examples
The average price to install a gas water heater is around 500 €. To this price you would need to add 700 € if the property doesn't have any gas supply, and 500 € if a flue outlet also needs to be installed. Issuing a gas installation certificate costs an average of 100 €.
By type of water heater
How much does it cost to install a gas water heater? Types of water heaters and budget examples
The average price to install a gas water heater is around 500 €. To this price you would need to add 700 € if the property doesn't have any gas supply, and 500 € if a flue outlet also needs to be installed. Issuing a gas installation certificate costs an average of 100 €.
Budget examples
Installing a natural gas water heater of between 5 and 11 liters for a home of around 80 m² costs between 300 € and 500 €, assuming the connection to the distribution network is already in place. Otherwise, the price would increase by around 700 €. A butane gas one is easy to install, and the installation of a standard-size device of about 12 liters is around 500 €. Finally, a propane gas water heater requires several connections: to the evacuation pipes and to the fuel tank, and can cost up to 600 €. In any case, if the installation of a flue outlet needs to be included, whether because you want to relocate the water heater or because it's being installed for the first time, the price could increase by around 500 €.
- Butane gas: these are the most popular and allow good control of consumption to use energy only when needed. The main drawback is that you need to regularly refill the gas cylinder.
- Propane gas: these also need a containment unit, but much larger than butane cylinders, so you need large space to place this tank. It's the most suitable type of water heater for factories, workshops, or offices.
- Natural gas: natural gas doesn't come in containers but is supplied through a network of pipes. It's very convenient and economical, but it's not available in all cities in Spain. Almost all water heater brands have a model adapted for each type of gas and have an average price of around 400 €.
- Type of ignition: they can be manual or automatic. The manual has a button that you need to press to ignite the flame and heat the water. The automatic has a burner that turns on when it detects hot water is being used and turns off automatically when done. This second option is the most convenient, the safest, and allows for greater savings because there's no risk of forgetting the flame on.
- Type of evacuation: sealed type are the safest and most recommended because they guarantee that no toxic gas leaks will occur. Forced draft types collect air from inside the home and expel it outside with the help of an integrated ventilation system. They are usually used in smaller spaces. Finally, there are natural draft or atmospheric water heaters. Their installation is only allowed in very well-ventilated areas or outdoor spaces.
- By capacity: the water heater's capacity also influences its price. Among the different options available, you can find water heaters with capacity from 9 to 17 liters. The greater the capacity, the more hot water outlets can be used simultaneously, reaching up to 4 in the case of the largest models. Greater capacity requires greater power from the unit, which can exceed 25 kW for larger models. The smallest models consume less than 15 kW. In this aspect, the cost can vary greatly: from 300 € for a 9-liter water heater to 600 € for a 17-liter one.
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Frequently Asked Questions
What is the total cost to install a natural gas water heater?
The average installation cost for a natural gas water heater is around 500 €. If you also need a flue outlet installed, the additional cost is approximately 500 €. If your home doesn't have a gas supply connection, you'll need to add another 700 € for connection to the gas network. Finally, the installation certificate costs an average of 100 €.
What is included in a gas water heater installation quote?
The standard 500 € quote includes labor for installation, removal of any previous equipment, and basic connections for water inlet and hot water outlet. The flue outlet (500 € additional), gas network connection if not existing (700 € more), and installation certificate (100 € additional) are not included. We recommend requesting detailed quotes to know exactly what each offer includes.
How long does it take to install a gas water heater?
Natural gas water heater installation typically takes between 2 to 4 hours, depending on the complexity of the work and the condition of existing connections. If a flue outlet needs to be installed or connection to the gas network is required, the time may extend to 1 to 2 days. The installation certificate process is completed the same day or within the following business days.
Do I need permits or licenses to install a natural gas water heater?
Yes, installing a natural gas water heater requires a gas installation certificate, which costs an average of 100 €. This certificate must be issued by a qualified technician and is mandatory under Spanish regulations. Additionally, depending on your autonomous community or municipality, you may need a minor works license, although in many cases water heater installation doesn't require one. We recommend checking with your local municipality to confirm the specific requirements for your area.
How do I choose a professional gas water heater installer?
The most important thing is that the installer is registered and accredited to work with natural gas, as this is specialized work. Request several detailed quotes to compare prices and included services, make sure they include the installation certificate, and verify reviews and references from previous work. A good installer should advise you on the most suitable water heater type for your home and clearly explain all costs before starting the work.
Got more questions? Contact us!
Got more questions? Contact us!
Frequently Asked Questions
What is the total cost to install a natural gas water heater?
The average installation cost for a natural gas water heater is around 500 €. If you also need a flue outlet installed, the additional cost is approximately 500 €. If your home doesn't have a gas supply connection, you'll need to add another 700 € for connection to the gas network. Finally, the installation certificate costs an average of 100 €.
What is included in a gas water heater installation quote?
The standard 500 € quote includes labor for installation, removal of any previous equipment, and basic connections for water inlet and hot water outlet. The flue outlet (500 € additional), gas network connection if not existing (700 € more), and installation certificate (100 € additional) are not included. We recommend requesting detailed quotes to know exactly what each offer includes.
How long does it take to install a gas water heater?
Natural gas water heater installation typically takes between 2 to 4 hours, depending on the complexity of the work and the condition of existing connections. If a flue outlet needs to be installed or connection to the gas network is required, the time may extend to 1 to 2 days. The installation certificate process is completed the same day or within the following business days.
Do I need permits or licenses to install a natural gas water heater?
Yes, installing a natural gas water heater requires a gas installation certificate, which costs an average of 100 €. This certificate must be issued by a qualified technician and is mandatory under Spanish regulations. Additionally, depending on your autonomous community or municipality, you may need a minor works license, although in many cases water heater installation doesn't require one. We recommend checking with your local municipality to confirm the specific requirements for your area.
How do I choose a professional gas water heater installer?
The most important thing is that the installer is registered and accredited to work with natural gas, as this is specialized work. Request several detailed quotes to compare prices and included services, make sure they include the installation certificate, and verify reviews and references from previous work. A good installer should advise you on the most suitable water heater type for your home and clearly explain all costs before starting the work.