View our members

Here you’ll find a full list of INNSA members. You can find a more detailed company profile which includes accreditations, qualifications held, which locations covered and all species dealt with, when you click read more under each profile.


Henderson & Taylor Ltd

Accredited Contractor and Consultant Member

Henderson & Taylor is at the forefront of providing cost effective treatment and eradication solutions for the removal of Japanese knotweed and other invasive non-native species (INNS) in the UK.

With our civil engineering background and our practical, solutions-based approach, we believe that saving money for our clients is about creating new ideas and ways of working that drive out costs and improve service performance.

We deliver value to our clients through innovation and help them to achieve their environmental targets by configuring low carbon solutions.

Whilst we provide a full range of removal and treatment services, our ‘Zero to Landfill’ methodology, is of particular interest to our commercial clients as it removes invasives and incinerates them on site. It’s designed to minimise costs, reduce risk and lower carbon dioxide emissions by eliminating expensive landfill charges and cut down vehicle movements.

We are a provisional Principal Contractor Licence Holder with Network Rail and 5* RISQS accredited. We are also an Environment Agency Upper Tier registered Waste Carrier and possess an Environment Agency Recycling Permit. Our management systems are ISO accredited to 9001, 14001, 18001 and we are corporate members of IEMA. We are also Basis, CHAS and Construction Line registered.

about us

Henderson & Taylor Ltd

Company: Henderson & Taylor Ltd

Company Type: Accreditied INNSA Contractor and Consultant Member

Accredited: Yes

Address: Top Floor, Claridon House, London Road, Stanford-le-Hope, SS17 0JU. UK

Contact: Mark Hesk

Tel: 01527 362333

Position: Managing Director

Locations: England, Wales & Northern Ireland

Clients- Private Individuals: No

Clients- Business:Yes

Waste Carriers License: Yes

Mobile Treatment Permit: Yes

National permit to incinerate: Yes

Environmental permit: Yes

Basis Accredited:Yes

Amenity Assured:Yes

PI Insurance: Yes

Employers Liability Insurance: Yes

Public Liability Insurance: Yes

Number of Staff: 13


Email: [email protected]

ISO 9001:2008: Yes

ISO 14001: Yes


First Aid: Yes

H&S: Yes


Personal Track Safety: Yes


Asbestos Aware: Yes

CAT Scan Cert: Yes

Forward Tipping Track Dumper: Yes

Articulated Dumper: Yes

Tipper Dumper: Yes

360 Tracked Exec:Yes

Mobile Treatment Permit: Yes

Dedicated In-house Surveyors: Yes

Relevant Degrees or professional qualifications: Yes

Relevant Degree Details:  Mark Hesk – B. Sc. Chris Simpson B.Sc.

PA1: Yes

PA6: Yes

PA6AW: Yes

Chainsaw: Yes

Aerial Rescue: No

Maintenance Equipment Safety: Yes




Japanese Knotweed (Fallopia japonica)

Giant Hogweed (Heracleum mantegazzianum)

Himalayan Balsam (Impatiens glandulifera)

Cotoneaster (Cotoneaster species)

Floating Pennywort (Hydrocotyle ranunculoides)

Case Studies

River Douglas, Wigan

River Douglas, Wigan Treatment of large amounts of Japanese...
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Narvick Way, North Tyneside

Narvick Way, North Tyneside Excavation from construction area, with...
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Lanark Way, Belfast

Lanark Way, Belfast Site survey and treatment plan for...
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