Rainwater Harvesting

What Rainwater Harvesting does

Rainwater Harvesting Limited is a privately held UK manufacturer and direct-to-consumer retailer of complete rainwater harvesting systems, headquartered in a 60,000 sq ft warehouse in Peterborough, England. Founded in 2007, the company designs, sources and distributes below-ground storage tanks (its proprietary F-Line shallow-dig range and the German-made Graf Carat range), submersible pumps (the UK-manufactured HydroForce Series 4), mains water backup units (Backup in a Box), control units (Rain Director), and storm attenuation devices (Rain Activ), alongside above-ground wall tanks, filtration systems, smart tank level sensors and tank accessories. A small technical help desk supports homeowners, builders and plumbers through system specification, installation and post-sale queries.

The business operates a hybrid go-to-market combining an e-commerce storefront (rainwaterharvesting.co.uk) with phone-led consultative sales, a trade and installer channel with dedicated discounts and a deposit scheme, and an enterprise distribution capability using its own fleet and third-party haulage for full systems. Customer demand is dominated by domestic homeowners seeking reductions in mains water usage and resilience against hosepipe bans, complemented by commercial and trade buyers requiring SuDS-compliant attenuation and large-capacity systems. Revenue is generated principally through one-time hardware sales of full system kits priced between £1,893 and £6,452 ex VAT, with ancillary components sold separately; a smaller professional-services stream comes from tank and gutter cleaning.

Competitive positioning rests on UK-manufactured pumps and control units, the differentiated F-Line shallow-dig form factor that materially reduces installation depth and excavation versus standard round tanks, and a certification stack (NSF Reg4, WRAS, manufacturer warranties of up to 25 years) accepted by all UK water suppliers. The company is founder/owner-managed (Adrian Lester, Managing Director and Partner) without disclosed external investment, serves primarily the UK market with limited international capability, and reports no acquisitions, leadership changes, or financing events in the source data.

Name

Rainwater Harvesting

Legal name

Rainwater Harvesting Limited

Website

https://rainwaterharvesting.co.uk

Company type

Private

Founded year

2007

Operating status

Operating

Headcount range

11–50 employees

Short description

Rainwater Harvesting Limited is a UK-based manufacturer and online retailer of residential and commercial rainwater harvesting systems, supplying proprietary F-Line tanks, HydroForce pumps, and certified backup units to homeowners, trade installers, and SuDS-focused developers from its Peterborough warehouse.

Ownership category

akta.pro rank

Headquarters

HQ city

Peterborough

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Infrastructure

Revenue model

1. Complete Rainwater Harvesting Systems: Sale of complete underground rainwater harvesting system kits including tank, pump, filter, backup unit, and accessories. Systems sold in various sizes (1500L to 15000L) at price points ranging from approximately £1,893 to £6,452 ex VAT.
2. Individual Components and Parts: Sale of individual products including pumps, filters, tanks, pipes, fittings, accessories, control units, drainage products, and water treatment equipment. Components available separately for replacement or DIY installation.
3. Above Ground Tanks and Water Butts: Sale of above ground water storage solutions including wall tanks, water butts, and above ground tanks. Products available in various sizes (250L to 2700L) with decorative and functional options.
4. Tank Cleaning and Gutter Cleaning Services: Professional cleaning services for rainwater tanks and gutters. Includes removal of debris, contaminants, and blockages. Additional services such as repairs or modifications handled separately by licensed contractors.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels6 records

Core offering

Rainwater Harvesting Limited manufactures and supplies complete rainwater harvesting systems, including below-ground polyethylene tanks (F-Line shallow-dig and Graf Carat), submersible pumps (HydroForce), control units (Rain Director), mains water backup units (Backup in a Box), attenuation devices (Rain Activ), above-ground wall tanks, filtration, and accessories. The company also offers tank cleaning services and supports a trade/installer channel with technical help desk and dedicated pricing.

Product overview

Rainwater Harvesting Limited is a UK-based manufacturer and supplier of rainwater harvesting systems operating from a 60,000 sq ft warehouse in Peterborough. The product portfolio consists of two main underground tank system types: F-Line flat shallow-dig tanks and Carat round dome tanks from Graf, both sold as complete kits. Core system components include the proprietary HydroForce Series 4 submersible pump, Backup in a Box mains water backup, Rain Director gravity management unit, and Rain Activ attenuation device for SuDS applications. Above ground offerings include multiple wall tank ranges (Gubo, Aqua Tower, Aqua Wall, Tower Brick, Barletta, Botaqua, Multitank, Tower Stone, Wall Stone, Tower, and Novara). Accessories include smart tank monitoring (Rain Acculevel), filtration systems (Graf Optimax Pro, 3P Filter Collector), and various tank components (shafts, lids, extension sleeves). The company also provides tank cleaning services.

Differentiator

Problem solved

Functional benefit

Brands

• Rain Director: Multi award winning rainwater management control unit and header tank, designed to reduce energy use and pump wear in gravity fed systems.
• Backup in a Box
• Rain Activ
• HydroForce

Products and services

• F-Line Direct Feed Systems Complete underground rainwater harvesting system kits with shallow-dig flat tanks (F-Line), pre-fitted filter, HydroForce pump, and Backup in a Box mains water backup. Available in 1500L, 3000L, 5000L, 7500L, and 15000L capacities for residential and commercial property owners.
• Carat Rain Backup in a Box Systems Complete underground rainwater harvesting system kits featuring Graf Carat tanks (round dome design) with auto-mains water backup. Available in 2700L, 3750L, 4800L, and 6500L capacities, supplied with 15-year manufacturer warranty.
• Rain Director Gravity fed rainwater management control unit and header tank designed to reduce energy use and pump wear in rainwater harvesting installations.
• Backup in a Box NSF Reg4 approved plug-and-play mains water backup system for rainwater harvesting that automatically tops up the underground tank with mains water (approximately 250 litres) when the water level runs dry.
• HydroForce Series 4 Pump UK-manufactured submersible pressure sensitive rainwater tank pump, electronically controlled, centrifugal roto-dynamic with no reciprocating parts. Features built-in non-return valve and double dry-run protection, delivering up to 3.5 bar pressure and over 2500 litres per hour.
• Rain Activ Ultra low discharge storm attenuation device achieving peak discharge rates as low as 0.05 litres per second. Bespoke solution calibrated using Micro Drainage software for SuDS professionals on sites that cannot use soakaways.
• Wall Tank Collections Above ground wall-mounted rainwater storage tanks available in multiple ranges (Gubo, Aqua Tower, Aqua Wall, Tower Brick, Barletta, Botaqua, Multitank, Tower Stone, Wall Stone, Tower, Novara) in various sizes from 250L to 2700L, with decorative and functional options for residential garden and outdoor use.
• Rain Acculevel Level Sensor Smart wireless sensor system for measuring water levels in F-Line tanks. Measures water level every 15 minutes and sends data via gateway to the customer's online account at tanklevels.co.uk. Battery life up to 5 years.
• Tank Cleaning Service Professional interior tank cleaning service for removing dirt, debris, and contaminants from rainwater storage tanks. Available to customers with installed Rainwater Harvesting systems.

Quantifiable outcome

• Up to 35% reduction in toilet water usage through rainwater harvesting
• +5 more outcomes

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Two partnerships are on record, tiered core.

• HydroForce Pumps LtdcoreTechnology or IntegrationHydroForce Pumps Ltd engineers and manufactures the HydroForce Series 4 submersible pump in Peterborough, England. Rainwater Harvesting Ltd distributes these pumps as part of their complete system kits and as standalone products. Each pump is individually tested and performance logged against its barcode number.
• Graf (Germany)coreTechnology or IntegrationGraf of Germany supplies Carat range underground rainwater harvesting tanks. Rainwater Harvesting Ltd distributes Carat tanks in the UK market as complete system kits with mains water backup. Carat tanks come with 15-year manufacturer warranty.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Premier Tech Water and Environment: Premier Tech provides water and wastewater treatment solutions including rainwater harvesting systems in the UK. It serves both domestic and commercial segments with overlapping underground and above-ground storage offerings.
• Wisy AG: Wisy is a German manufacturer of rainwater harvesting filters, vortex filters, and complete systems with international distribution. It is a directly comparable specialist competitor with overlapping product technology in filters and system components.
• Graf UK: Graf is the German manufacturer of the Carat underground tanks that Rainwater Harvesting distributes in the UK. Graf UK sells directly into the same domestic and commercial rainwater harvesting market and offers overlapping system products, making it the most directly comparable competitor.
• 3P Technik UK: 3P Technik is a German-engineered rainwater harvesting filter and system supplier with UK distribution. It competes directly in the domestic rainwater harvesting system segment with comparable underground tank and filter offerings.

Regional players

• Rain Harvesting Pty Ltd: Australian rainwater harvesting equipment specialist with a comparable product range of tanks, pumps, filters, and diverters. While focused on the Australian market and drought-driven residential demand, it operates in the same product category with similar use cases.

Broad incumbents

• Polypipe Building Products: Polypipe is a leading UK manufacturer of plastic piping and water management systems. Its stormwater management and SuDS solutions serve the same developer and trade installer customer base, though rainwater harvesting is one of many product categories.
• Kingspan Water & Energy: Kingspan is a major building products group with a dedicated water and energy division selling rainwater harvesting systems, hot water storage, and renewable energy products to commercial and residential customers across the UK.
• Wavin UK: Wavin is a major European plastic pipe and water management systems manufacturer with broad stormwater management and SuDS offerings. While not a rainwater harvesting specialist, it serves the same developer, contractor, and municipal customer base with adjacent product lines.
• ACO Technologies: ACO is a large established drainage and surface water management solutions provider in the UK. Its stormwater attenuation, channel drainage, and SuDS offerings overlap with Rainwater Harvesting's attenuation product line and target the same developer and contractor market.

Emerging players

• Atlantis Water Management: Atlantis provides rainwater harvesting tanks and stormwater management solutions. While primarily active in Australian and Asian markets, it is an emerging player in the broader category with partial overlap in modular water storage offerings.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks1 record

Key highlights7 records

Customer concentration

• Xx.com/WaterSavings

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Rainwater Harvesting