Septic Tanks & Treatments Plants


  • Septic tanks, treatment plants, off mains
  • Off mains drainage solutions
  • Sewage treatment/septic tank plant installations.
  • New drainage fields


Is your system compliant?

Does your system comply with the new 2015 general binding rules?
Is your current septic tank discharging to a watercourse?

We can carry out a survey of your current system to check all this and more.
This information will be needed if you are selling or buying a house and is asked for by the solicitors.

Drain Wizard can install a new treatment plant that allows you to discharge to a watercourse.
A permit is not required at present, as long as the discharge is not above 5 cubic metres a day.

We also install new drainage fields for septic tanks.

A percolation test on the ground/soil will be required to calculate the size of the new drainage field required for the property size. The test takes two days.


To meet building regulations, a new drainage field should be at least 10m metres from any watercourse, and 50 m from borehole, spring, or other source of water supply intended for human consumption.


“Really grateful for the works you have done”

"A policy holder has just rung up and just wanted to say how amazing and great you guys have been today, she could not praise you enough and was really grateful for the works you have done. So just...

“impressed with the proactive and positive attitude”

From the very start i was impressed with the proactive and positive attitude of the contractors. The job was tackled in a very professional manor and i was left in no doubt that the damage to my...

“Our Local Expert”

Putting my confidence in “Our Local Expert” I contacted Drainwizard who arrived that afternoon.. The engineer who came was very pleasant and most efficient in the way he identified and sorted out...

“Thankyou for the Excellent job”

We have to Thankyou for the Excellent job of fitting our new sewage Treatment Plant and removing the old one , the work force were friendly and very helpful and did an amazing job of putting down...

“extremely helpful and obviously very knowledgeable”

I would also like to say that the chap who came out to perform the survey was extremely helpful and obviously very knowledgeable, I will certainly be recommending you to friends, and will use you...

“She could not praise You enough”

A Policy Holder has just rang up and just wanted to say how amazing and great You guys have been Today, She could not praise You enough and was really grateful for the works You have done.  So just...

“such a professional job”

Thank you too, to your engineers for carrying out such a professional job.~ Abbey School  

“great job helping fix them but were also really helpful, nice to talk”

I’ve just had 2 of your guys come and spend 2 days working on our drains and just wanted to let you know that they did a great job helping fix them but were also really helpful, nice to talk to and...

“the boys did a fantastic job”

Hi All completed. I gotta say, the boys did a fantastic job. They did exactly what I wanted and needed. Especially considering the weather. Well done to them. Cheers John

“we wouldn’t hesitate to recommend you to anyone”

Hi Gavin, Just a short note to thank you and the team for doing such a lovely job here at Lufton Byre. They all worked very professionally and you’d never now know that anything had happened. The...