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Septic Tank Installation

Are you considering installing a septic tank system on your property but don't know where to begin?

From the planning stages to the final installation, each step requires careful attention to detail. Fortunately, our expert team of technicians are here to help!

Septic Tank Installation

Why Cotswold Drainage?

Properly installing a septic tank system is a complex task that involves careful planning, the right equipment, and professional expertise.

Navigating local regulations ensures legal compliance, while choosing the right system impacts long-term efficiency and reliability.

Our team of experts will ensure your septic tank is installed perfectly. This will help to prevent property damage, and ensures adherence to local regulations.


Get in touch

Contact our friendly and professional team via form, phone or email for any drainage issues you may have.

From blocked drains to septic tank repairs and replacements, we're here to help. We have over 25 years of experience and offer 24/7 emergency callouts.


I wanted to say a big thank you to Cotswold Drainage who unblocked a couple of drains for me on Friday. The team were really efficient and arranged a prompt call out and Adrian the engineer turned up at the appointed time. He really worked hard to ensure the problem was resolved despite one of the drains being really difficult to access and extremely smelly and unpleasant to deal with. He also gave me good advice on what he could ascertain about the drain fall, what had caused the problem and steps to take to avoid a recurrence. I was really impressed.
- Iain P
Excellent. Will use again
- Rob Perrin
I always find the staff at Cotswold Drainage very polite & helpful, they always provide an excellent service & they do try and come out the same day. I would defiantly recommend using their services.
- Bowling Green Court
Cotswold Drainage cleared a blocked drainage pipe from our septic tank. Not the easiest access and a combination of pipe and soakaway to investigate. Adrian was excellent - prompt, friendly and willing to go the extra yard when things were looking difficult. Very pleased with the service.
- Geoff Smith
Used this company a couple of times now. Staff always great and they turn up when they say. Never had any problems, work always done properly. Would recommend.
- Rachel Godfrey
Very knowledgeable and polite, quickly cleared the drain and washed it out.
- Alan Grove
A quick and professional service. Russell the operator soon had our problem solved
- Donald Gilder
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    Our septic tank services

    We offer a comprehensive range of services for every type of septic tank and sewage treatment plant. From regular scheduled emptying and maintenance to complete replacements and upgrades.

    Have an emergency? Or looking for a maintenance or quote?

    Choosing the Right Septic Tank System

    Selecting the appropriate septic tank system can significantly impact the efficiency and longevity of your installation. Two common choices are sewage treatment plants and traditional septic tanks.

    Sewage treatment plants are sophisticated systems that treat effluent to a higher standard before releasing it into the environment, making them suitable for areas with stringent environmental rules.

    On the other hand, traditional septic tanks are the most common choice and work by separating solids and scum from wastewater. They are generally affordable, easier to install, and require less maintenance, making them ideal for most homeowners.

    However, you should weigh the pros and cons of each system. Sewage treatment plants, while more efficient, are more expensive and complex to install. Traditional tanks might be the simpler choice, but they need more frequent emptying and might not meet certain environmental standards without additional components like a soakaway system.

    Choosing the Right Septic Tank System

    Professional Septic Tank Installation

    While some might be tempted to tackle septic tank installation on their own, there are compelling reasons to hire professionals. This critical home project requires a combination of technical knowledge, specialised equipment, and experience.

    One of the primary benefits of professional installation is the guarantee of proper techniques. We will ensure your septic tank is correctly installed, reducing the risk of leakage or system failure. Without this expertise, you may face recurrent issues that could lead to costly repairs and potential health hazards.

    We will also minimise the risk of property damage during installation. We have the necessary equipment and skills to execute the job efficiently, ensuring that your landscape is preserved. Attempting to install a septic tank without this expertise could result in significant damage to your property, both above and below ground.

    Importantly, we have a deep understanding of local regulations. We will ensure your installation is fully compliant, avoiding legal issues down the road. Failing to meet these regulations can lead to hefty fines and the need to redo the installation - costs and headaches that are easily avoided by working with us.

    Professional Septic Tank Installation

    We have an amazing team to help get your drains up and running smoothly.

    Our friendly, reliable, and expert team will always be on hand to provide you with the necessary drainage solutions. Working hard to get the job done as quickly as possible with the utmost efficiency and care, so that your life can get back to normal. There is nothing more important to us than keeping you in the loop, our engineers will keep you updated sending you reminders, and checking our visit will still be convenient to your needs.

    Cotswold Drainage Engineer

    Septic Tank Installation Process

    The first step in the installation process is site preparation and excavation. Our surveyors will come to your property to mark the exact location for the tank based on the previously discussed regulations and permits. This step ensures the tank is positioned at the optimal distance from your home, water sources, and property boundaries.

    Next, excavators dig a pit to the required depth and size. The dimensions depend on the type and size of the septic tank you’ve chosen. During excavation, soil conditions can significantly affect the time and complexity of the task. Hard, rocky soil will take longer and require more effort to excavate than soft, loamy soil.

    To protect your property during this phase, temporary landscaping measures are often implemented. This could involve creating barriers to prevent soil erosion or damage to surrounding plants. These precautions ensure your property remains in good condition throughout the installation process.

    Discussing requirements

    Once the site is prepared and the hole is excavated, the actual installation can begin. The septic tank is carefully lowered into the pit, ensuring it’s level and correctly positioned. Proper positioning is crucial for the system to function efficiently and avoid any future issues.

    After the tank is in place, we will connect it to your home’s plumbing. This step involves laying pipes from your house to the septic tank and from the tank to the drain field or additional treatment components. The connections must be leak-proof to prevent any groundwater contamination and ensure the system operates flawlessly.

    Finally, the system is thoroughly inspected to confirm everything is in working order. This inspection includes checking for leaks, ensuring that all connections are secure and verifying that the tank is properly positioned and level. Any issues identified at this stage are addressed before finishing the installation.

    Lowering septic tank into the pit

    Once the installation is complete, the finishing touches begin. This involves backfilling the pit with soil and making sure the area is restored to its original condition. The goal is to blend the installation seamlessly into your landscape, making it appear as though no major excavation took place.

    We will also provide you with maintenance guidelines to ensure the longevity and efficiency of your new septic system. Regular maintenance, such as periodic pumping and inspections, is critical to preventing issues down the line and keeping your system in top-notch condition.

    Finishing touches

    Why choose Cotswold Drainage?

    Cotswold Drainage is CHAS-approved for health and safety, a member of Constructionline and has 25+ years of experience. You can trust us to maintain and unblock your drainage systems across commercial and domestic properties with minimal disruption, utilising the latest high-tech equipment as well as follow-up visits during and after your 6-month warranty.

    Why choose Cotswold Drainage for blocked drains?

    What we offer

    Here at Cotswold Drainage, our team have over 25 years’ experience and the expertise guaranteed to sort your problem quickly with minimum of fuss, leaving you more than satisfied.

    We offer a 6-month warranty, along with a free drain camera health check and a guarantee that you will receive follow-ups during and after your 6-month warranty.

    We operate a large fleet of vehicles, equipped with specialist equipment for any situation, including our high-power jetting system for removing blockages & cleaning, and also CCTV for on-site surveying of the problem or damaged drainage systems.

    Don’t just take our word for it, read our incredible reviews left by our valued customers

    I wanted to say a big thank you to Cotswold Drainage who unblocked a couple of drains for me on Friday. The team were really efficient and arranged a prompt call out and Adrian the engineer turned up at the appointed time. He really worked hard to ensure the problem was resolved despite one of the drains being really difficult to access and extremely smelly and unpleasant to deal with. He also gave me good advice on what he could ascertain about the drain fall, what had caused the problem and steps to take to avoid a recurrence. I was really impressed.
    - Iain P
    Excellent. Will use again
    - Rob Perrin
    I always find the staff at Cotswold Drainage very polite & helpful, they always provide an excellent service & they do try and come out the same day. I would defiantly recommend using their services.
    - Bowling Green Court
    Cotswold Drainage cleared a blocked drainage pipe from our septic tank. Not the easiest access and a combination of pipe and soakaway to investigate. Adrian was excellent - prompt, friendly and willing to go the extra yard when things were looking difficult. Very pleased with the service.
    - Geoff Smith
    Used this company a couple of times now. Staff always great and they turn up when they say. Never had any problems, work always done properly. Would recommend.
    - Rachel Godfrey
    Very knowledgeable and polite, quickly cleared the drain and washed it out.
    - Alan Grove
    A quick and professional service. Russell the operator soon had our problem solved
    - Donald Gilder
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