Trusted Agent profile
★★★★★
145 reviews across 2 platforms
1 Castle Street, Carrickfergus BT38 7BE
Gareth Mills Estate Agents's Carrickfergus office at 1 Castle Street is rated 4.6 out of 5 across 145 reviews on two platforms, including 135 Google reviews rated 4.6. Checked 9 October 2026.
Every review we hold for the Carrickfergus office, from every platform, shown as written. First names only.
5/5
GoogleBought our house through Gareth Mills and everything went very smoothly. Gareth could not have helped more, he was very pleasant and everything was completed on time. Ashleigh from the office has recently also helped with a valuation for my father in law and was extremely pleasant and professional. Would not hesitate to work with Gareth and team again in the future. Thank you
5/5
FacebookRecently bought my house through Gareth Mills Estate Agent, fantastic service from start to finish and lovely staff def highly recommended 👌🏼🏠
❤️ Thank you Carly Mac ❤️ Very best of luck in the new house 🏡🏡
5/5
GoogleMy wife and I have recently moved to Australia and Gareth has managed our property which has given us such peace of mind that its in the best hands. The communication had been second to none and we really appreciate all the help and advice we received. If you are thinking of using a management agent this is the company to go with.
5/5
GoogleHelpful and knowledgeable well recommended.
5/5
GoogleFantastic 5* service from start to finish from a knowledgeable local team. I can highly recommended from the perspective of a portfolio landlord on both the conveyance and lettings side where the team give tailored commercial and practical advice throughout.
5/5
GoogleRenting the first place in this country through this agency. Perfect very fast resolution with any issues that arose. Always there to support when you need. Friendly group of people in the office too.
5/5
GoogleBig thank you to Gareth and his team for selling my property. They took complete charge taking the stress out of the process. I never had to telephone them for updates on viewer, I was alway keep in the loop. Have never had such a professional experience when selling a property. Wouldn't have any hesitation recommending this Company. Once again thank you.x
1/5
GoogleNot even worthy of a 1 star rating, we were purchasing a house through Gareth Mills Estate Agents and were lied to about when we would be able to complete, the sellers changed their stance as soon as we put our offer in and then they tried to claim there was miscommunication between both parties, completely unprofessional.
5/5
FacebookReally helpful staff. Helped make a stressful process so much easier from start to completion. Would highly recommend
Thank you Beverley…… we have made another new friend 😁😁😁
5/5
GoogleI cannot recommend this estate agency Highly enough enough. The staff team go that extra mile for you as does Gareth. Many thanks for all your hard work.
5/5
GoogleWould absolutely recommend gareth mills to anyone looking to buy/ sell. So hardworking/ efficient and dedicated. Amazing friendly service. We are forever thankful to the whole team
5/5
GoogleExcellent service. Gareth was so efficient and understanding, and helped make the whole process so simple. Highly recommend!
5/5
GoogleGreat service from Gareth and his team. Helped us every step of the way when selling our house, cant thank them enough - would highly recommend....
5/5
GoogleCan’t recommend Gareth and the team enough. Hands on, approachable and great service from the whole team. They make the house moving process stress free.
5/5
GoogleI cannot recommend this estate agency Highly enough enough. The staff team go that extra mile for you as does Gareth. Many thanks for all your hard work.
5/5
GoogleExtremely professional service. Cannot fault Gareth or the team. I would recommend anyone looking to buy or rent to contact them without hesitation
5/5
GoogleApproachable, reliable, sense of urgency & professional. Gareth & team come highly recommended.
5/5
GoogleMy property was sold in 24 hours!! An expert team led by Gareth made the whole process a breeze. Would highly recommend this Estate Agents.
5/5
GoogleCould not recommend these guys enough, from start to finish they helped me find exactly what I was looking for. As soon as I contacted Ashley, she and Irene helped me along every process seamlessly and I'm now happily settled in my wee home x
5/5
GoogleGareth Mills estate agents sold our house very quickly for us. They were extremely professional and very helpful and friendly. Nothing was too much trouble and we were always kept fully up to date throughout. I can highly recommend them and the services they provide.
5/5
GoogleI have found dealing with Gareth and his team that they are all about the client experience for sellers and buyers. That's rare these days and so refreshing. They make the whole process friendly, informative and less stressful. It's great to see a local business go from strength to strength
5/5
GoogleWe just purchased our property though Gareth Mills and couldn't be happier with the service. Staff are very warm and inviting and actually have a good sense of humour too. Nothing is too much trouble and they're very accommodating. Thanks all and Have a Merry Christmas.
5/5
GoogleAfter being feeling deflated with no activity on my property I changed estate agents to Gareth & within 2 months I had numerous viewers and an offer that has just completed. I could not have asked for anything more. Highly recommend, for efficient, professional & friendly service!
5/5
GoogleFriendly staff and very helpful. Best in carrick!!!
Where the same review appears twice we show it once. We leave out reviews that name another agent or another of the brand's offices.
Gareth Mills Estate Agents's Carrickfergus office has 145 reviews across two platforms: 135 on Google, 10 on Facebook. Reviews may appear on more than one platform. Checked 9 October 2026.
Gareth Mills Estate Agents is rated 4.6 out of 5 across all 145 reviews, and 4.6 out of 5 on Google from 135 reviews, checked 9 October 2026.
Gareth Mills Estate Agents, 1 Castle Street, Carrickfergus BT38 7BE.
Ratings and review counts checked 9 October 2026. Is this your office? Claim your page.