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Wiltshire’s dedicated Septic Tank, Sewage Treatment Plant and Soakaway Installers.

We offer a free quote for all Installations and replacements as well as a comprehensive inspection and survey service. Please get in contact on 0800 3101092 or contact us here 

Septic Tank barely visible

Wiltshire’s dedicated Septic Tank, Sewage Treatment Plant and Soakaway Installers.

Septic Tank Survey Reviews
Call the expert installers on 0800 3101092 to arrange a FREE quote or contact us here.  

Homeseptic’s core services in Wiltshire

We are a small and friendly company based in the Sandleheath on the Wiltshire border that specialises in Septic Tank Replacement, Surveys, Installations, Soakaway problems, 2020 regulations and Drainage Fields. Please feel free to give us a call to chat through any concerns you have or just to get a bit more information to help your understanding. Below is a more detailed outline of the main services and solutions we offer.

Septic Tank Replacement & Installation Wiltshire:

We are based in Sandleheath on the Hampshire and Wiltshire border and offer solutions for all off-mains sewage issues. 

Septic Tanks are simple devices, that offer a basic level of sewage treatment. Essentially the purpose is to hold the solid element of wastewater back and allow the liquid to escape to a discharge point.  However as with everything a Septic Tank has a finite life span. The main cause of a septic tank failing is some form of structural failure that leads to the wastewater no longer being contained within the tank and it leaks out. This means even the basic level of treatment does not occur leading to raw sewage escaping into the adjacent ground. This leads to pollution occurring and non-compliance with the General Binding Rules 2015, which are set by the Environment Agency. 

Another cause of a Septic Tank needing to be replaced is the 2020 change to legislation concerning Septic Tanks if they discharge to surface water. As of the 1st of January 2020 if you have a Septic tank that discharges to a ditch, river, stream, pond, or lake you will need to replace it with a Sewage Treatment Plant. Please see our more detailed article for more information: Septic Tank Rules 2020.

Septic Tank Repair Wiltshire:

Can a Septic Tank be repaired? The answer to this depends on two main factors, the construction material used and the type and extent of the damage. There are two main types of construction materials, glass fibre, and brick & concrete. Modern fibre tanks are very difficult to repair if they lose structural integrity. In most cases, a replacement tank will be required. Brick & concrete tanks are easier to repair, the main factor here is the type of damage. A common situation with these types of tanks is when a wall begins to bow and crack due to the external pressure of the ground. In these situations, the tank will likely need replacing. If the leak or loss of integrity is caused by mortar having washed away then it is possible to repair the tank by repointing. 

Septic Tank Problems Wiltshire:

The top 10 warning signs of Septic Tank Problems.

  • Slow flushing or in extreme cases an overflowing toilet.
  • Effluent or liquid surfacing around your septic tank, soakaway or drainage field.
  • If you’re discharging to a watercourse, a slow odorous discharge.
  • Movements in the ground in the vicinity of your system.
  • Horrible smells.
  • Gurgling or overflowing drains.
  • Septic tank problems after it rains
  • Problems with your washing machine, dishwasher, etc.
  • Your tank needs emptying more frequently.
  • Water collecting around your manholes.

If you are having problems with your Septic Tank then please head to our main Septic tank problems page: Septic Tank Problems – The signs and solutions

Soakaways Wiltshire:

If you have a Septic Tank or Sewage Treatment plant then it will need to discharge the treated wastewater somewhere. There are two options either to surface water or into the ground. If you discharge to ground and your system was installed before 2007 it was likely to be a soakaway. A soakaway is simply a hole in the ground normally filled with rubble. If your soakaway fails or you are installing a new system then an old-style soakaway is no longer an allowable option. The only solution now allowable without a permit from the Environment Agency is a Drainage Field. For more information please see the following page: Soakaway Regulations.

Septic Tank & Sewage Treatment Plant  Maintenance & Servicing Wiltshire.

Legally you have to have your tank serviced and emptied annually to comply with the General Binding Rules. The main reason that this is required is to ensure that your system is not working effectively and not causing pollution. We can help you here and offer a no-fuss annual servicing plan. Servicing & Maintenance page.

Septic Tank Surveys and inspections for those buying or selling a house in Wiltshire. 

With the introduction of the General Binding Rules in 2015 and the 2020 ban on Septic Tanks being able to discharge directly to surface water, it has become standard practice for a survey to be required by mortgage companies and solicitors to assess any off-mains system. We offer a comprehensive investigation and report of any such system to both give you the confidence needed to buy your new property with confidence and to fulfil any legal or financing questions. If you are Buying or Selling a property with a Septic Tank, Sewage Treatment Plant or Cesspool/Cesspit then please have a look at the following links:

Home Sellers Septic Survey Wiltshire: This article illustrates the main reason to have a survey if you are selling a house.

Home Buyer Septic Survey WiltshireThis article illustrates the main reason to have a survey if you are buying a new property.

Buying a house with a Septic tank, Cesspit, or sewage treatment plant: This is a great article for anyone either buying or selling a property that is not up to date with the new regulations. 


Our head office is based in a small village called Whitsbury which is just on the border between Hampshire and Wiltshire (Wilts). It has open access to both Cranborne Chase and the West Wiltshire Area of outstanding natural beauty. Close by is the famous Chalke Valley which we all love visiting and rambling through.

Wiltshire is full of famous towns and history, which obviously include Stonehenge and Old Sarum castle as well as the more modern Salisbury cathedral.

Towns of Wiltshire


is the nearest village to the forest of Clarendon, located two miles downstream from Alderbury, on the same side of the river and splendidly situated on a plateau overlooking the broad valley is Trafalgar House. The river provides unique septic challenges.


Amesbury lies on a meander of the River Avon, eight miles north of Salisbury, at a point where the main road from London to Exeter bridges the river. The chalk downlands of Salisbury Plain surround the town, pocked with the remains of earlier civilizations. Chalk can cause septic drainage issues as well as the river basin. We can provide drainage solutions.  


Avebury; This tiny village is the centre of a wonderful concentration of prehistoric sites and offers a variety of features that create difficulties for septic drainage systems.


Box;  hill-top village above a deep combe. It is best known for its long railway tunnel, the work of Brunel, and its extensive stone quarries. Generally, we see good drainage here.


Bradenstoke Located on a hill on the southern side of the Braydon River and to the north of Lyneham airfield, it was an important place in medieval times. The imposing river makes Soakaways difficult to install. You are likely to be discharging directly here and as such should check your system in light of the 2020 regulation changes.

Bradford On Avon

Bradford On Avon, tucked into the western corner of Wiltshire the little town of Bradford on Avon straddles the river of the southern edge of the Cotswold Hills only 8 miles from Bath. Again the river here means you are likely directly discharging from your septic tank. You will need to replace it with a sewage treatment plant.


Calne is one of the very few towns where you can stand in the centre, look up and see hills around you, towards the White Horse. The valley location can impact drainage solutions.

Castle Combe

Castle Combe, we love the motorsport around here. The hill dominates the landscape and affords its own Septic challenges.


Chippenham; is one of the bigger towns of Wiltshire, with many areas on mains drains. However, as always there are areas not served and we can help.


Clarendon;  The ancient forest of Clarendon once stretched to the edge of Salisbury. The palace occupied a hilltop site on the eastern scarp of that hidden valley and commanded a distant view of the cathedral.

Colerne; is close to the Gloucestershire border, and the Fosse Way.


Corsham is an old quarry town in the West of Wiltshire. The bedrock here can stop free-draining soakaways and alternative options have to be found.


Cricklade is midway between Cirencester and Swindon, just off the A419 and is the northernmost town in Wiltshire. Some of the town lies in a flood plain which causes its own drainage issues.

Dauntsey – West Lavington another ancient town in Wiltshire. We cover this area and also love to visit.


Devizes; almost lies in the centre of Wiltshire with a lovely network of canals. The area has a really diverse set of drainage challenges.  

Lacock, dominated by the abbey is a lovely rural location. The septic solutions here are again diverse.

Longford It is not a village but a great estate and the home of the Earls of Radnor. It stands by one of the loveliest reaches of a tranquil river, its eastern walls washed by the water, and long lawns and formal gardens forming an impressive vista along the bank.


Malmesbury. There was a monastery established here in 640. Today the abbey dominates the town. The early settlement was on a hill, more of an island really, formed by the Bristol Avon and one of its tributaries.


Marlborough is a lovely town situated in the picturesque rural north-east of Wiltshire. Many of the houses here are not on mains drains.


Melksham at one time aspired to a spa. Two promising mineral springs were discovered here in 1816, and all the necessary amenities, including a pump room, hot and cold baths, a handsome promenade and even crescents like Bath were quickly provided, but unfortunately, the idea never caught on. This however can cause issues when planning a septic tank install.

North Bradley

North Bradley; looks across the fields towards the Westbury downs and the White Horse. Near it is Pewsey located between Salisbury Plain and Marlborough Downs. A white horse cut into the chalk of Pewsey Hill overlooks the town. The small town grew up around an island settlement, once encircled by the river. This affords some real drainage challenges. It is also likely that you discharge to a water course. This means you should take note of the upcoming 2020 regulation changes.


Swindon is the largest town in the county. However until the 1840’s it was just a hilltop community which ran a market for cattle, sheep and horses. Current Swindon features many distinctive murals and sculptures which may be seen on several art trails.


Tisbury;  is a small town with full of interesting old stone buildings and a few exceptional ones. There are many ancient houses here and has some vintage septic systems.


Trowbridge; began life as a settlement on a ridge of stony subsoil by the little river Biss. The reason for this is due to communications, throughout the county, communicating was always a problem because of the Salisbury plain, all the main railway lines ran east to west in the south of the county hence Trowbridge was the more accessible from places as it could be reached by rail.


Warminster is located 400 feet (120 metres) above sea level. This generally affords good drainage where the soil allows.


Westbury; close to the Somerset border, on the western edge of Salisbury Plain. Westbury is currently famed for the closeby White Horse.


Whaddon was founded by the Saxons emerging from Alderbury when the Saxons were extending their territory around the Clarendon forest.


Wilton; this historic town was once the capital of Saxon Wessex. Today it is famous for the manufacture of carpets, which dates back to the 17th century. There is a river running through the town with a mix of on and off-drainage solutions.

Geology, overview of  the area:

The surface geology of Wiltshire follows relatively simple lines. The former cover of Chalk and earlier Cretaceous rocks has been removed by erosion in the basin of the Wiltshire Avon, leaving a prominent scarp trending generally NE/SW across the centre of the County.

To the northwest, the Jurassic rocks crop out in succession, dipping southeastwards under the Chalk. To the south-east, the Cretaceous rocks form the high ground of the Marlborough Downs and Salisbury Plain. In the south east corner, there are some small outcrops of Tertiary rocks at the extreme edge of the Hampshire Basin.

Two major vales finger into the Chalk outcrop, the Vale of Pewsey, floored by Lower Cretaceous rocks, and the Vale of Wardour, which cuts down as far as the Upper Jurassic rocks

Planning Regulation:

A number of sites within the various areas of outstanding natural beauty and scientific interest require extra permissions when looking to install a septic system. We are used to dealing with these, please get in touch.

For more planning information check out this government site.

Our Core Services

Installation, Replacement, Servicing  & Surveys of Septic Tanks & Sewage Treatment Plants.

Homeseptic Ltd. is rated 4.8 out of 5 based on 28

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About Us & Our Services

Homeseptic performs maintenance, repairs, and installation on all makes and kinds of Septic Tanks and Sewage Treatment Plants across Wiltshire. We also carry out all types of, private drainage, Soakaway and drainage field replacements for storm water, rain water, and effluent. All of us grew up in the New Forest and love the area. We have all worked in the drainage industry for the last couple of decades but have grown frustrated at how other companies operate. This is why we formed Homeseptic. We want to do a good job at a sensible price and leave a job feeling good about the work we have done. We don’t want to overcharge, we don’t want to be rushed and we don’t want to install a system we know will fail. 

You will find we will always endeavour to find an efficient solution to all your drainage requirements. Removing and treating foul waste from a property is crucial for safety, hygiene, your ability to sell your property in the future and to ensure you are complying with legislation. Therefore it is sensible to call in trained professionals for the installation of a treatment plant or septic tank or in fact any drainage work.

What does a waste treatment plant do?

A treatment plant processes waste to a far higher standard than a septic tank installation. It effectively combines the process of both an old Septic Tank and its drainage field. Effluence is typically clear between 96% and 98% pure water and can be offloaded into a ditch or watercourse. From the 1st of January 2020, no Septic Tank system can be discharged directly to a ditch or watercourse. Given the challenge with soil type, the water table and access many New Forest Properties currently discharge to a ditch or watercourse. If you are unsure give us a call and we will check your existing system.

Although standard treatment plants use gravity to operate some will require an additional pumping system. Again this is very common because of the unique challenges the New Forest offers particularly in areas with a high water table or clay type soils. The new regulation requires all owners of Septic tanks and Sewage Treatment plants to have annual services and effluent checks, this can prove crucial when coming to sell your property. Again get in contact if you have any questions.

Environmentally friendly Graf products:

Coming from the Forest we are keen environmentalists, which is why conditions allow we offer Graf Tank products. These German engineered systems are ultra-environmentally friendly.

The Graf tanks are single chambered injection moulded systems set up to be ultra environmentally conscious from production through to the output. They are also designed with no moving parts or mechanical elements making them reliable, less costly and easier to maintain. See the Graf page here.

  • Sustainability starts with the manufacturing, this type of tank tech normally requires 2.7 kWh per kg of plastic to produce, Graf has it down to between 0.38 and 0.5 kWh. Further, all heat generated by the process is recovered and used to heat the companies logistics buildings. All the materials used are 100% recyclable.
  • Electric usage is kept to a minimum, 46kWh per person per year for the One2Clean and 43kWh for the advanced, a 9w energy saving bulb uses 78kWh, normal sludge activated systems use 217kWh.
  • Both of the Graf systems only require one pumping process compared to three in normal systems, extending the life of the core air compressor and delivering the energy savings.
  • The unique way the system treats the waste minimises the level of sludge produced and generates market-leading odourless effluent quality. Graf claims this leads to a carbon footprint of 25% compared to conventional wastewater treatment systems.

Where on your property can the treatment plant be installed?

This depends largely on the layout of the property and Building Regulations from the Environment Agency. We will assess your site and work with you to find the best solution for your installation. Ultimately a site and system which you are happy with.

Wiltshire County Council offers the following advice. To be honest it’s pretty unhelpful but gives you a starting place for further research.

If you are really geeky and want to get into the detail of the geology and drainage of Wiltshire then this is a great read


Sewage Treatment Installer Wiltshire

Sewage Treatment Installer Wiltshire

Servicing, Survey, Soakaway, Inspection, Installation of all Septic Tanks and Sewage Treatment Plants in Wiltshire
Service Type
Servicing, Survey, Soakaway, Inspection, Installation of all Septic Tanks and Sewage Treatment Plants in Wiltshire
Provider Name
Homeseptic Ltd,
Courtwood Farm,Sandleheath,Hampshire-SP6 1QD,
Telephone No.0800 3101092
Whiltshire: Alderbury, Amesbury, Avebury,Box, Bradenstoke, Bradford On Avon, Calne, Castle Combe, Chippenham, Clarendon, Corsham, Cricklade, Devizes, Malmesbury, Marlborough, Melksham, North Bradley, Salisbury, Swindon, Tisbury, Trowbridge, Warminster, Westbury, Whaddon, Wilton.
Homeseptic offer a range of services relating to Septic Tanks, Sewage Treatments Plants, and Packaged Treatment Plants throughout Wiltshire. Our services are the Servicing and maintenance of these types of tanks. Their Installation and inspection. The Surveying of the systems to check compliance with the General Binding Rules and 2020 legislation, which primarily caters to those buying or selling a property. We also install Drainage Fields, Soakaways, and infiltration tunnel systems for discharges to the ground and are happy to deal with any associated Environment Agency permit applications.
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