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London Drain Clearance
5.0(3670 reviews)
Highly RatedLocal Expert
Fixed price drain clearance. London Drain Clearance are a Specialist Drain Jetting and Cleaning company. Call us today for more information on 07957 929588.
Best Drain Clearance Companies in Harrow (2026)
Independently reviewed · Last updated February 2026 · Covers Harrow and surrounding areas including Bushey, Edgware, Wembley
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A10 Drainage Services Ltd
5.0(1080 reviews)
Highly RatedLocal Expert
A10 Drainage is North London’s leading drain cleaning specialist, providing fast, reliable, and affordable drain unblock service 24 hours a day, 7 days a week.
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Must Go Drains Ltd
5.0(1040 reviews)
Highly RatedQuick Response
BLOCKED DRAINS, BLOCKED TOILET, BLOCKED SINK, BLOCKED SHOWER, 24/7 CALLOUT AND PPM WORK, BLOCKED DRAINS NEAR ME EMERGENCY CALL OUT.
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Wimbledon Drainage
5.0(500 reviews)
Highly RatedExperienced
As your go-to expert in clearing blocked drains, I’m committed to resolving your drainage issues with speed and precision.
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L&A Drainage
5.0(350 reviews)
Highly RatedReliable
Rapid 24/7 Drain Unblocking London with ZERO call out charges. Trusted by residential and commercial property owners across London.
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EW Ealing Blocked Drain Jetting
5.0(210 reviews)
Highly RatedRecommended
Drain Clearance in Harrow
Finding a trustworthy drain clearance company in Harrow shouldn't be difficult. We've done the research so you don't have to — the companies on this page are ranked by genuine customer ratings.
The Harrow area is well served by drain clearance professionals, with most also covering Bushey, Edgware, Wembley, Watford. Response times are typically the same day, often within a few hours for emergencies.
If your drain keeps blocking in the same spot, it may be worth asking about a CCTV drain survey. Several of the companies serving Harrow offer this as an add-on, typically costing £100-£200.
Frequently Asked Questions About Drain Clearance in Harrow
What is the best drain clearance company in Harrow?
Based on our editorial research and customer reviews, London Drain Clearance is the top-rated drain clearance company serving Harrow, with a 5.0-star rating from 3670 verified reviews. They offer professional drain clearance services.
How much does drain clearance cost in Harrow?
The typical cost for residential drain clearance in Harrow ranges from £100 to £250, depending on the severity and location of the blockage. A straightforward external drain blockage is usually at the lower end, while internal blockages or those requiring specialist equipment may cost more. Most reputable companies in Harrow offer a fixed price with no hidden call-out fees — always confirm the price before work begins.
Can I get same-day drain clearance in Harrow?
Yes. Most of the top-rated companies serving Harrow offer same-day service, with many able to respond within 1-2 hours for emergencies. If you have sewage backing up or an overflowing drain, call the top-listed company directly — emergency call-outs are typically available 24/7 including weekends and bank holidays.
What causes blocked drains in Harrow?
The most common causes of blocked drains in residential properties around Harrow are fat and grease build-up (especially in kitchen drains), hair and soap scum (bathroom drains), tree root ingress (outdoor drains), and foreign objects like wet wipes and sanitary products. Older properties in Harrow may also have clay pipes that are more prone to cracking and root penetration.
Do I need drain clearance or drain repair?
Drain clearance removes blockages — hair, grease, debris, tree roots — and restores flow. It's a quick fix, usually completed in under an hour. Drain repair addresses structural damage like cracked, collapsed, or displaced pipes. If your drain keeps blocking repeatedly in the same place, you probably need a CCTV drain survey (£100-£200) to check for underlying damage. The companies listed above can advise on which service you need.
How do I know if a drain clearance company is trustworthy?
Look for companies with verified customer reviews, transparent pricing (a fixed quote before work starts), and no call-out charges. Membership of trade associations like the NADC (National Association of Drainage Contractors) is a good sign. The companies ranked on this page have been assessed on customer ratings, review volume, and professional reputation.
What areas near Harrow do these companies cover?
Most drain clearance companies listed for Harrow also cover nearby areas including Bushey, Edgware, Wembley, Watford, Borehamwood, Ealing. If you're outside Harrow, enter your postcode in the search bar above to find companies near you.
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