24/7 365 Emergency Call Outs
No Call Out Charge
1 Hour Response Time
Up To 10 Year Guarantee
24/7 365 Emergency Call Outs
No Call Out Charge
1 Hour Response Time
Up To 10 Year Guarantee
Harrow Drains Logo
Septic Tanks and Water Treatment Plants Harrow

Septic Tanks & Water Treatment Plants

  • 100% satisfaction guarantee
  • No call out charge, competitive prices!
  • 24-7, 365 Emergency call outs
  • 1 Hour response time
  • Done by certified & fully-insured technicians

Get A Free Quote

24/7 Emergency

Round-the-clock cover, 365 days a year

No Call Out Charge

You only pay for the work we carry out

1 Hour Response

Fast dispatch to Harrow & London

Emergency Service

0800 669 6492

Available 24/7 — No call out charge

Local, family owned & operated

Serving Harrow & Surrounding Areas

Septic tank issue? Call us now.0800 669 6492Contact Us

Comprehensive Septic Tank & Water Treatment Information

A septic tank collects wastewater from toilets, sinks and baths in properties that aren’t connected to the main sewer. The tank separates solids from liquid, allowing solids to settle and begin breaking down.

Homes around Harrow, Pinner and Stanmore with older or rural drainage often rely on septic tanks for basic waste treatment. Regular servicing and emptying are needed to keep them working safely.

Septic tanks are simple and lower-maintenance but offer limited treatment, only suitable where basic soakaway is possible. Water treatment plants deliver better effluent quality, helping you meet newer regulations.

If your property near Harrow-on-the-Hill or Ruislip needs to meet strict discharge rules, a treatment plant may be required. Our engineers advise what suits your site and handle installation or upgrades.

Emptying is usually needed every 12–18 months to prevent overflow, blockages or bad smells. Our high-vacuum tankers remove waste safely and efficiently, with minimal disturbance to your garden.

Regular maintenance checks the tank’s structure, pipe connections and the function of manhole covers. Routine servicing helps avoid expensive repairs and keeps systems working in Belmont, Roxeth or South Harrow.

Regular servicing keeps your treatment plant operating efficiently. We check pumps, aerators and electrical controls, clearing blockages and changing filters where needed.

Professional maintenance prevents costly breakdowns and ensures the plant meets discharge consents, essential for homes and businesses around Brent Cross or Greenford with more advanced systems.

Overflow, blockages or tank failures can cause immediate hygiene problems. Our emergency team answers calls day or night, targeting a 1-hour response throughout Harrow and London.

We tackle urgent pump-outs, flood prevention and safe waste removal for residential and commercial sites in Sudbury Hill, Wembley or surrounding areas.

A sewage treatment plant processes wastewater more thoroughly than a basic septic tank. These systems use aeration and mechanical stages to treat water so it can soak away safely or discharge to a watercourse.

Properties in Wembley, Northwood or Edgware with higher occupancy or stricter discharge needs may install treatment plants to meet environmental standards and reduce pollution risks.

Installation starts with a detailed site survey to assess ground conditions and size requirements for your home or business. This helps determine the right tank and soakaway system.

Certified engineers excavate and install septic tanks to provide years of reliable service in locations such as Kenton, Wealdstone or Greenford. All work is fully insured and compliant with UK building regulations.

Cracks, collapsed baffles or damaged inlet pipes can cause leaks or surface flooding. Our engineers assess the damage using CCTV and recommend practical repairs, from patching to pipe replacement.

We issue written guarantees on all repair work, giving property owners in North Harrow or Stanmore confidence that their drainage will stay trouble-free.

Regulations set standards for how septic and treatment systems are installed, used and maintained in London. We help clients meet Environment Agency rules on wastewater discharge and soakaway design.

We issue service records and compliance certificates, ensuring your property in places like Pinner or Edgware avoids penalties or future legal complications.

The drainage field, also called a soakaway, disperses treated water into the ground. Blockages or waterlogging here often mean slow drains or surface water pooling.

Our engineers pinpoint problems with CCTV and test pits, offering repairs or new soakaway installation for properties in Ruislip, Northwood or West Harrow.

Why Choose Harrow Drains for Septic Tank Services?

Expert Technicians

Engineers trained to handle all types of septic and waste systems.

Rapid Response

Targeting a 1-hour response for emergency septic tank issues.

Advanced Equipment

Reliable high-vacuum tankers and inspection cameras for every job.

Guaranteed Work

Repair work comes with a clear written guarantee for your peace of mind.

What You Can Expect From Us

No call-out charge

You only pay for the work we carry out, agreed before we start.

1-hour response target

We aim to reach emergencies across Harrow within the hour.

24/7, 365 days

A real person answers the phone day and night, including bank holidays.

Fully insured engineers

Public liability insurance and trained, certified technicians on every job.

Guaranteed repair work

Repairs and relining are backed by a written workmanship guarantee.

Local to you

Engineers based in and around Harrow and London.

We Understand Septic Tank Problems Can Be Stressful

Call 0800 669 6492 for septic tank or treatment plant emptying, repair or installation in Harrow and nearby areas.

0800 669 6492

Contact Us About Septic Tanks

If you require septic tank or water treatment plant services, reach out to Harrow Drains today. Our specialists will be happy to provide all the information you need.

Get a quick quote

CALL US NOW • CALL US NOW •