Business Details
36 Years
experience
Trusted Property Experts in Hertfordshire
Castles has been a trusted independent estate agency serving Hertfordshire, Bedfordshire, and Buckinghamshire for over 30 years. Established in 1990, we prioritise customer-centric service, combining local expertise with industry innovation. Our team of seasoned professionals delivers transparent communication, market insights, and tailored solutions for property transactions. With nine offices across the region, we focus on building long-term client relationships through integrity, expertise, and a commitment to stress-free property experiences. Our values of excellence, long-term care, and market knowledge underpin every interaction, ensuring clients receive reliable guidance and exceptional service throughout their property journey. 
Services
Property Sales
Property Lettings
New Homes
Land Sales
Property Valuation
Sales Progression
Property Marketing
Client Services
Mortgage Advice
Property Management
Details
- Year established: 1990
Highlights and features
- We offer 30 years of local property market expertise across Hertfordshire, Bedfordshire, and Buckinghamshire
- Our virtual viewings ensure only serious buyers view properties
- We provide transparent communication through multiple channels including WhatsApp
- Our team builds long-term relationships for ongoing property needs
- We guarantee expert valuations from experienced local professionals
Associations and certifications
- CMP Certificate
What people say
Exceptional customer service
Stress-free transactions
Local market expertise
Professional team
Transparent communication
Services
Property Sales
Our property sales service combines local market expertise with targeted marketing strategies to achieve premium prices. We offer professional valuations, virtual viewings, and dedicated sales progression support. With 30 years of experience across Hertfordshire, Bedfordshire, and Buckinghamshire, our team ensures smooth transactions from instruction to completion, maintaining transparent communication throughout the process.
Property Lettings
Castles provides comprehensive lettings services for landlords and tenants. We manage property marketing, tenant vetting, and lease administration across our operating regions. Our dedicated property managers ensure compliance with current regulations while maintaining strong relationships between all parties. The service includes regular property inspections and efficient maintenance coordination to protect investment value.
Property Valuation
Expert property valuations are conducted by experienced local professionals using current market data and recent sales trends. We offer both in-person and online valuation options with detailed pricing analysis. Our accurate assessments help clients make informed decisions about selling, buying, or remortgaging properties across our three-county service area.
New Homes Sales
Specialist new homes sales service featuring exclusive developments and off-plan purchases. We provide detailed market analysis and negotiation support for new build properties. Our team works closely with developers to offer clients early access to upcoming projects and competitive pricing opportunities across Hertfordshire, Bedfordshire, and Buckinghamshire.
Sales Progression
Dedicated sales progression service managing transactions from offer acceptance to completion. We coordinate legal processes, resolve potential delays, and maintain communication between all parties. Our experienced team ensures compliance with property regulations while streamlining the process to achieve timely completions for both buyers and sellers.
People
Ronnie Clarke
Managing Director
With 20 years in estate agency and mortgage broking, Ronnie prioritises customer service excellence. He leads Castles' strategic direction while maintaining client focus through numerous 5-star reviews.
Adam Contreras
Area Director
Over 20 years' local market experience, Adam specialises in stress-free property transactions. He combines market knowledge with relationship-building to ensure client satisfaction across his 1997-2024 career.
Simon Stears
Branch Partner - Boxmoor
Estate agency professional since 2013, Simon leads Boxmoor operations with family-focused service. His community involvement and client-first approach reflect Castles' core values.
Matthew Wood
Branch Manager - Eaton Bray
Local expert with 20+ years' experience, Matthew specialises in sales management and team development. His community knowledge and transaction expertise benefit clients across Buckinghamshire.
Louise Lockett
Head of Client Services
With 20 years in sales progression, Louise leads client services with organisational excellence. Her team ensures smooth transactions from offer to exchange of contracts across all Castles offices.
Questions
What areas do Castles Estate Agents cover?
We operate across Hertfordshire, Bedfordshire, and Buckinghamshire with nine local offices.
Do you offer virtual property viewings?
Yes, we provide virtual viewings to ensure only serious buyers view properties.
How can I get a property valuation?
Contact your local Castles office or book an expert valuation through our website.
What makes Castles different from other estate agents?
Our 30 years of local expertise, transparent communication, and client-first approach set us apart.
Do you handle new home sales?
Yes, we specialise in new home sales alongside traditional property transactions.
Reviews (7)
Tracey Yeo
Dec 07, 2021
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We purchased a property from Flaggs and my mum and I found them very professional and extremely helpful. Lindsay was always available to answer any questions either at the office or on his mobile and he even took my call on his day off. Kelly, the receptionist was always very helpful and friendly when I called the office. Lindsay had a good relationship with the vendors and their solicitors and assisted us with obtaining a quick sale. We would highly recommend Flaggs, who could not have done enough for us. We were also given a lovely bottle of bubbly when the sale was completed. It was a lovely
Nikoletta Puzsa
Dec 06, 2021
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Positive:Professionalism,Responsiveness,Value
Ian was a star in our process, he did everything he could to make it easy and smooth, sorted out much more than what he was responsible for, without him we would not done the buy so quickly! We were so lucky to have him! We will not go to any other agent in the future when we want to sell!
Ian was a star in our process, he did everything he could to make it easy and smooth, sorted out much more than what he was responsible for, without him we would not done the buy so quickly! We were so lucky to have him! We will not go to any other agent in the future when we want to sell!
Michael Aylott
Nov 24, 2021
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What can I say about Flaggs, we initially brought our flat from them, they then helped us sell it and buy our new home. We'd definitely use them again, I can't recommend them highly enough! It's fair to say moving is one of the most stressful things you can do but, Flaggs work so hard to keep you informed, staying positive even if things are dragging and are more than happy to do what they can to help. If you want a company to care for your family home as much as you did, look no further than Flaggs.
Adam and his team are the very definition of friendly hands on and there to help. Thank you
Adam and his team are the very definition of friendly hands on and there to help. Thank you
Katy Green
Nov 23, 2021
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Positive:Professionalism,Quality,Responsiveness
The best experience I have received by an Estate Agency by far! Responsive, reliable, thorough and professional. Highly recommend them. They set the tone for others to follow!
The best experience I have received by an Estate Agency by far! Responsive, reliable, thorough and professional. Highly recommend them. They set the tone for others to follow!
Philip L.
Nov 21, 2021
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We put our 3 bedroomed house up for sale with Flaggs. They arranged a mass viewing for the Saturday, & sold it immediately for an very good price. During the sale Adam, Caroline & Victoria were extremely helpful, keeping me informed with all the developments. Great work from Flaggs.
Shola Akin
Nov 20, 2021
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From the minute I sent a request to view the property, I was contacted the next day. Met Sarah at property where she showed me round, answered my questions and gave me great professional advice. Excellent work done by Sarah with vendor which helped get a better than expected deal. I found the property of my dreams too so a total win win. I have been in contact with other staff at the company and I have been treated with respect and great customer service too. I would highly recommend Flaggs Estate Agents to one and all for all your property needs. Wish the company continued success and thanks to
Lucy Kerr
Oct 30, 2021
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After shopping around to find a professional and highly recommended estate agent, I came across Flaggs. From my first initial valuation with Ian to then further selling my rental property. I was thoroughly pleased with Flaggs professionalism. After having a bad experience with a previous estate agent in Hemel whilst renting my property I was very pleased with Flaggs approach and professional advise throughout the whole process. I had many viewings that took place at my property and was always updated on each potential buyer. The process from start to finish was brilliant and put my mind at ease
