How to Install Stormwater Drainage System

During a storm, stormwater drainage system runs the water off of your roofs, driveways, and other big surfaces. Stormwater drains, such as rainwater pits and drainage pipes, aid in the mitigation of the negative impacts of excessive water. Stormwater pits retain the excess water until it drains into associated drainage pipes in the council’s main system, preventing floods in a specific area.

It’s a legal necessity to acquire the council’s approval first because new stormwater drains connect to the main system. Your local government may send an inspector to your property to assess its suitability, and you might be obliged to pay a fee.

To ensure the proper installation of stormwater drains, it is important to hire an experienced licenced stormwater contractor.

Preparing the Pipelines and The Pit For Casting

As a safety precaution, it is important to ensure that the pipes are of high quality. Before lifting and lowering the pre-cast stormwater pit and drainage pipes into the excavated area, it is important to have them inspected for any damage or unreported materials.

  • The number of pipe outlets a pre-cast pit should have and the provisions for connecting them;
  • The potential and amount of pipe expansion and contraction owing to climate; and the pipe class
  • Examination of the following factors when preparing the pre-cast pit and drainage pipes:
  • Rainwater pits with plastic bases that are light in weight
  • Stormwater pits with polyproline bases that are built to last
  • Top filter lids made of plastic or aluminium
  • Filtering devices such as leaf guards and other similar devices

It is recommended to use pre-cast stormwater pits (i.e. constructed before installation). They are built from recycled plastic or pre-cast concrete. The following are the most common pits and pit products that should be used:

The Excavation Work

It is recommended to inspect the proposed stormwater drainage system site for resilience and robustness before excavating. After that, the trenches should be dug for the pipes and the stormwater pit hole.

The trenches are narrowed down to a practical level, while keeping enough space to conduct other work on-site, such as jointing and compaction. It is also necessary to consider the stability of the trench. Trenches that are kept wider tends to be more stable than those that are narrow. It is important to dig a large enough hole to allow for pipe expansion and contraction owing to changing weather conditions. The trench should be dug deep enough to prevent water from infiltrating and causing the pipes to float, but shallow enough to enable the pipes to support the weight of the ground above them. The pipe should then be placed in a smaller trench dug within the larger trench by your stormwater contractor.

Connecting the drainage pipes to the lowered pre-cast pit

The pipes should be secured enough for the pre-cast pit to sit firmly enough to prevent floating in the event that water infiltrates the trench. Because the pipes can only be joined while straight, it is necessary to bend them with a padded bending assist.

If a trench becomes unstable, we can reinforce it with timber trench walls and steel rods, as well as adding enough additional support for slopes of 20% or more.

Backfill and Install Grate After Applying Sealant/grout.

The trenches should then be replenished, compressed, and levelled with sealant and grout and allow to dry. Afterwards, install the grate atop the stormwater drainage system.

The backfilling work should consist of underlaying and overlaying works, accounting for pipe expansion and contraction due to changing climates. The best foundation material is sand, but crushed rock or gravel is also a viable option.

Important Considerations When Hiring a Drainage Contractor

Whether it is civil drainage construction or commercial drainage installation and repair, you need to look for drainage contractors in Ipswich, who are well equipped to get the work done efficiently, quickly and safely.

Here Are Some Important Things To Consider Before Hiring a Drainage Specialist.

Experience and Qualifications

To become an expert drainage specialist, one ought to go through specialised trainings and should get certification. The drainage contractors should have proper licenses to work in a particular state or country. You need to hire a drainage specialist in Ipswich, who has decades of experience in the industry. Try not to work with an inexperienced drainage contractor, even if he possesses all the necessary qualifications.


Mishaps may happen anytime. If your drainage contractor has insurance, then you will be quickly reimbursed for any damage caused to your property. With insurance coverage, you won’t have to spend a single penny if someone gets injured while working on your project. This will protect you as well as the drainage contractor.


After taking the above-mentioned factors into consideration, you should ask for references and check the track record of your prospective drainage contractors in Ipswich. Try to get a clear picture about the professional relationships they had with their former clients. Meet some of their past customers in person, if possible. This will help you understand whether their previous customers were happy with the service quality.


Never work with someone who refuses to offer a warranty on his or her service. Make it a point to ask for the warranties on your potential drainage specialist’s works.


Hire someone who offers services at competitive rates – not very costly and not very modest as well. Choosing cheap services doesn’t guarantee that you can save a lot of cash, so be careful with services offered at extremely low costs.

By keeping the above-mentioned factors in mind, you can choose a drainage specialist who can live up to your expectations.

4 Helpful Tips To Hire The Best Civil Drainage Contractors In Ipswich, Queensland

The clogged up drainage system can be a tremendous headache for any home, particularly if it is had not been fixed properly and on time. Extremely slow drainage of water from sinks and bathtubs, clogged sinks, delayed toilet flush, and blockage of the bathroom drainage pipe are among the most common problems that may occur and require urgent inspection without hesitation. Its, therefore, necessary for homeowners to employ experienced and best civil drainage contractors across Queensland to deal with the issue in a professional manner.

Below You’ll Come Across Some Useful Tips For Recruiting The Right Civil Drainage Contractors Queensland For All Your Utility Hookups.

Always Search Online  

You need to start by looking for the best civil drainage contractors online. Look for the best online contractors with adequate knowledge and experience in cleaning blocks and clogged drainage systems. You may come across several contractors with their official website. You can visit their website to get in-depth details and information about their company and past works. The websites might also provide reviews and testimonials from their former clients, again, which will give you all the right details about the quality of their work. With all this information you can easily make smart decisions.

Verifying All Their Credentials 

Note, before recruiting any civil drainage contractors Queensland, ensure that the technical qualifications and licensing of the company and its workers are reviewed. Trained and skilled contractors have a good understanding of dealing with blockages. They can easily manage the clogging of drains and other forms of drain block problems. They are also well versed in the techniques and know-how to work under high safety standards while at the same time upholding the quality of hygiene.

Also, the contractor you employ must have insurance policies both for third party liability and for themselves. This helps to shield you from being responsible for injuries and losses caused to the property of others during the cleaning process.


Another important thing you need to remember when recruiting a civil drainage contractor is their experience and expertise. You need to evaluate how experienced and knowledgeable the contractor is in resolving clogged drainage systems. It is essential to ensure that the contractor has all the necessary skills and experience in the field. Check if they have the expertise to deal with the drainage issues you are facing.

The civil drainage contractors in the Queensland area must be professional and come well equipped with all the right plumbing equipment and tools to inspect the problem inside of the drainage system and give you services accordingly without causing any damage to the premises. Only an experienced contractor can provide efficient and quality cleaning services without further damage to your house.

In the end

You can also ask a variety of other organizations to offer you free quotes for their services. Collect and compare them all. A comparison of quotes will help you understand and get the best facilities at reasonable rates. You will need to review the payment conditions to check whether they charge hourly rates or a flat rate.

4 Helpful Tips for Hiring Civil Drainage Contractors in Queensland

For large-scale civil drainage projects, you need to look for companies that have decades of experience in the industry. With countless civil drainage contractors in Queensland, hiring the right service provider is a challenging task.

Here are some helpful tips to find the best civil drainage contractors in Queensland for all your drainage issues.

Search Online

You need to work with a service provider who can live up to your expectations. To hire the right company, you need to search for the best civil drainage contractors online. Look for contractors who have the experience and are well equipped to handle civil drainage projects of all sizes, types, and complexities. By visiting the official websites, you can get detailed information about the companies. The official websites also have reviews and testimonials of their previous clients and this will give you proper clarity on the quality and type of services offered by the contractors. Doing your own research work will help you find the best civil drainage contractor in Queensland.

Verify the Credentials and Licensing

Before you hire a civil drainage contractor, you need to scrutinise and verify the licensing of the company and the professional training of the people working there. Fully trained and highly skilled contractors have extensive knowledge and expertise to handle drainage projects of all types – from construction and installation to repairs, maintenance and everything in between.

Reputation and Experience

When hiring civil drainage contractors in Queensland, you need to consider the experience. You need to hire a contractor who has the experience and expertise to handle all types of civil drainage projects. You need to find out if they are well equipped to offer the services that you need.

Hire a company that has earned a solid reputation for providing the highest standards of service, workmanship, and professionalism. The contractor should keep up to date with the latest technological advancements in the industry and must have high-end equipment and tools to complete large-scale civil drainage works with the utmost precision and care.


Having proper clarity on the price and rates of services is very important when you are planning to hire a civil drainage contractor. You must always hire contractors who provide a detailed estimate of costs prior to starting the work. Drainage contractors usually conduct on-site inspections and based on the nature and extent of work needed, they set a price for their services. Ask for quotes from different contractors and make a comparative price analysis before making the final choice. Hire a service provider who offers competitively priced services with no hidden extras.