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myDurgo Valve Installation Cost
At a Glance
- The average cost to install a durgo valve is around £150.
- Most jobs take 1 day to complete.
- Durgo valve installation cost breakdown for 2025.
- How long the job takes and what's typically involved.
- How to find a local durgo valve installer.
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£150
Table of Contents
How Much Does It Cost To Install A Durgo Valve?
How much does a durgo valve cost?
On average, the cost of installing a durgo valve is around £150.
Before the introduction of Durgo valves, most air ventilation was done through a soil stack, which left the house through the roof. They had to be a certain distance above rooms and windows, making the cost of a roof vent often higher because it involved roof work and a lot of labour.
These types of installations can often be unsightly and lead to roof damage, such as leaks. So, you may want to consider having a durgo valve fitted if you do not already have one.
They simply fit onto the existing soil stack, but instead of needing to be ventilated out the roof, you can keep it inside as it does not allow bad gases or smells to escape.
How does a durgo valve work?
Durgo valves, sometimes referred to as air admittance valves (AAV), are used in households and buildings as a form of ventilation. It allows for the ventilation of waste gases and air, such as from waste pipes.
When a toilet is flushed or wastewater is being drained, it creates negative pressure. The durgo valve allows the air pressure to balance out, whilst allowing for effective ventilation, which simultaneously allows air to reenter the pipes after the wastewater has flowed through.
Ventilation must be present in rooms with waste and soil drainage, such as in bathrooms and kitchens. Durgos allow the circulation of air around drainage systems, which essentially allows trap seals to work properly.
I'd like to move the bathroom toilet to create more space, but that would mean running the soil pipe along the wall for a few metres. Will this be a problem?
"Not at all, as long as sufficient flow and air admittance is available."
Durgo Valve Installation Prices
| Job Description | Duration | Material Cost | Labour Cost |
|---|---|---|---|
| Hiring a plumber to fit a durgo valve and modify soil pipe | 1 Day | £50 | £100 |
| Remove soil pipe from roof | 1 Day | £20 | £65 |
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Additional Durgo Valve Installation Costs
There are a few additional jobs you can get done at the same time as your durgo installation to optimise your plumber's minimum call-out fee while sorting out any gurgling drains, slow drainage, or bad odours. Here's what you can keep in mind:
New Tap Installation Costs
Tap replacements cost £100 on average, and can help to solve several issues from leaky taps, low water pressure, or blocked pipes. With a plumber already on-site to fit your durgo valve, optimising their services with some additional plumbing jobs around the house makes sense.
New Toilet Installation Costs
Perhaps you've had repeated issues with your bathroom toilet for a while. If you've had repairs done to no avail, such as spending on repeated toilet unblocking costs or drain unblocking fees, another job your plumber can tackle is to fit a new toilet for you.
New toilet installation costs around £450 depending on the make and model you choose, as well as the complexity of the plumbing. Some of the problems with your existing toilet might be linked to needing durgo valve installation, such as gurgling drains and slow flushing, so getting this done at the same time is a wise move.
New Kitchen Sink Installation Costs
Keeping a plumber's minimum call-out charge in mind, if you have been thinking about a new kitchen sink for a while but haven't got around to upgrading it, during your durgo installation can be a great time. Kitchen sink installation costs £275, and takes just 2 to 4 hours to fit, giving your kitchen a new lease of life in no time.
Things to Consider When Installing a Durgo Valve
- Where will the durgo valve be installed? Often enough, the air admittance valve is installed in the loft space of the property.
- Can you meet the required height? Durgo valves must be higher than the highest point of water flow, such as a sink basin, toilet or bath, usually around 200mm higher.
- Will the durgo valve be accessible? Avoid sealing your durgo valve permanently without an access panel. It should be installed in a position where it can be accessed easily for any inspections, cleaning, or replacements.
- How many appliances will the durgo valve serve? Before you have a durgo valve installed, you should check how many appliances will be connected to the same pipework. The valve needs to suit the size of the system and the number of connected appliances.
- Are there any regulations you need to know about? There are some regulations you may need to look at. They cover the fact that you may need to have a separate ventilation pipe in your home as well as the durgo valve, this is so no back-pressure can build up and cause any damages. If you are unsure, always seek advice from your local building authority.
Can You Fit a Durgo Valve Yourself?
The fitting of the durgo valve itself is not a tough task, as most durgo valves are able to simply be clipped into place. Just spray a good amount of silicone lubricant around the valve and the soil pipe, and simply push it into place.
Durgo valves themselves are actually quite cheap, so if you want to save yourself some extra costs, you can always buy the materials yourself, even if you plan on hiring someone to carry out the job for you.
If you were to remove the current ventilation pipe from the roof, then you will need the assistance of a roofer. Unless you have the required skills and tools yourself, this is best left to a professional, as there is a possibility of causing damage to the roof.
You will also need the assistance of a good plumber, who can assist you with the capping off of the soil stack so that the valve can be fitted. You may also need a sub-stack put in or maybe some pipes cut and relocated. Our advice is to seek the assistance of professionals in this instance.
Do I Need a Durgo Valve?
Still wondering if you need a durgo fitted in your home?
Here are some quick facts:
- Durgo valves are used for drainage ventilation in modern households and buildings.
- An air admittance valve eliminates the need for roof penetration for your soil stack.
- To remove the soil stack from the roof, ask the advice of a qualified roof specialist.
- You may need the assistance of a qualified plumber to help with any pipework.
- Durgo valves are relatively cheap - buy the materials yourself to save on costs when hiring a specialist.
Checklist: Hiring a Durgo Valve Specialist in the UK
Get free, no obligation quotes from Durgo valve installers near you. MyJobQuote is fast, easy, and connects you with professionals in your area.
When the time comes to hire a durgo valve installer, here's what you should keep in mind:
- Find a local, licensed contractor with familiarity in fitting durgo valves and air admittance valves.
- Gather at least 3 quotes to compare your durgo installation costs to ensure you're getting a fair price.
- Make sure your quote is itemised so there are no hidden costs or surprises when you settle up.
- Take a look at the trader's customer reviews - do they sound positive?
- If there are any photos or videos of their previous work, be sure to look at these to get an idea of the quality you can expect.
- Remember to ask about any warranties or guarantees the plumber has for their work.
- Ask about the upkeep of durgo valves and what you'll need to do to maintain it once it's been fitted.
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FAQs
What Is a Durgo Valve?
A durgo valve is used to help ventilate the drainage systems in homes and other buildings. When flushing the toilet or pouring water down the sink creates negative pressure in the drainage system, meaning it needs more air coming in to cancel that out. A durgo valve helps bring that air in, as well as releasing other bad gases.
Can I Fit a Durgo Valve Myself?
If you have the suitable skills and tools available, then fitting a durgo valve shouldn't be too hard of a job. The materials are cheap enough to purchase. However, there are some tricky aspects, such as removing the soil stack from the roof and cutting pipes. If you are unsure, seek the services of a professional.
What’s the Difference Between a Durgo Valve and an Air Admittance Valve?
There is no difference at all. The correct term is an air admittance valve, however, Durgo valve is a term commonly used in the UK. So, if you see one or the other, just know that they are the same thing.
Where Should I Place a Durgo Valve?
Durgo valves should always be situated at least 200mm higher than the highest point of any water flow, for example, a sink basin. This is so the valve itself does not run the risk of being flooded. Most Durgo valves are fitted in the loft, or a cupboard, or they can be boxed in.
Can a Durgo Valve Be Fitted Outside?
Thanks to new advancements in the durgo valve's design, you can purchase specific valves for outside use. They work exactly the same, except you will be attaching the valve to an exterior pipe.
