Castlers Auctions is an independent auction house in Colchester, Essex, purpose-built to bring sellers and bidders together through trusted, data-backed online auctions.
Objects of every kind are being produced, collected, and rediscovered faster than ever before. This abundance brings opportunity, but also complexity. Ensuring that assets continue to move efficiently to where they are valued most has become both a logistical challenge and a cultural necessity.
At Castlers Auctions, we’re not only facilitating that movement — we’re reimagining how it happens.
By developing smarter systems, data-driven methods and a transparent service, we are shaping the next generation of auction operations. From industrial equipment, raw returns, and surplus stock to fine art, jewellery, design pieces, and collectors’ items, we enable every object, regardless of scale or sector, to find its next context efficiently, responsibly, and with care.
Our aim is simple: to set a new standard in how goods of all kinds move through the world, making the exchange of value as fluid, intelligent, and trusted as the production and creativity that precede them.

Participation is surging, turnarounds are tightening, and satisfaction is climbing, momentum we’re doubling down on with every auction.
These figures represent the typical month across our auctions and continue to improve.
200-300
Bidders per auction
3 days
Avg delivery time
4+
Trustpilot rating
72%
Repeat bidder rate
Each value shapes how we run auctions end to end: setting expectations with consignors, marketing lots to motivated buyers, and keeping the process transparent right through settlement.
We build long-term relationships by operating transparently, protecting both buyers and sellers at every turn.
Our teams move quickly and precisely to keep auctions running smoothly and to surface opportunities faster.
From onboarding consignors to supporting bidders, we obsess over experiences that feel effortless and personal.
We iterate on data, tools, and touchpoints to modernize auctions without losing the human edge that defines us.
Access constantly changing stock with detailed photos and notes, honest fees, and fast delivery. Bid easily on any device.
Detailed cataloguing, condition reports, and transparent documentation for every lot so you can bid with confidence.
Easy bidding on a trusted online platform with maximum bids, real-time notifications and proxy bidding built in.
Secure payment processing, flexible collection options, and ongoing support from bid to delivery.
Powered by data and automation, we attract more of the right buyers and convert stock into cash faster, backed by clear reporting and rapid payment.
Choose full-service PBC (Processed by Castlers) on commission or PBS (Processed by Seller) on 0% commission — both no sale, no fee.
Seller Portal dashboard delivers real-time performance, statements, and payment tracking so you stay in control.
Expert valuation and market insights ensure your assets are positioned for optimal results from day one.
Experience disciplined auction operations, real-time insight, and accountable reporting that help consignors realise value faster while giving bidders the confidence to compete.
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