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Gareth Mills Estate Agents reviews

4.6

★★★★★ Excellent

135 reviews across 1 platform

1 Castle Street, Carrickfergus BT38 7BE

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Gareth Mills Estate Agents's Carrickfergus office at 1 Castle Street is rated 4.6 out of 5 across 135 reviews on 1 platform, including 135 Google reviews rated 4.6. Checked 9 October 2026.

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4.6 / 5

135

Reviews on Google

This office

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Reviews

Every review we hold for the Carrickfergus office, from every platform, shown as written. First names only.

1/5

Google

Avoid Garth Mills if you value your time, money, or sanity. I trusted them to sell my home, the same property they sold to me 5 years ago, and was met with nearly a year of delays, silence, and failure. They listed the property using outdated photos and left out key upgrades I’d made. After zero viewings, they advised a price drop, despite valuing it themselves. Two buyers pulled out: one after months of delay, another after a verbal survey I was never shown. Surveys were done without my knowledge. I was constantly left chasing updates. Now they’ve demanded £180+VAT to remove the listing, after they failed to sell it three times. Their mismanagement left me financially stuck on a variable-rate mortgage, paying inflated bills with no support. Unprofessional, unaccountable, and not to be trusted, even if you’ve worked with them before. Reply To clarify and correct your response: There were only a handful of viewings at the start. When I rang for advice, your office told me to drop the price, despite your own valuation being higher. I followed that advice in good faith, but I was the one left carrying the consequences. I was contacted directly by surveyors to arrange access, yet your office repeatedly didn’t seem to know why they were coming, or even when they were coming. I accept that survey outcomes belong to the buyer, but as the selling agent, it was your role to at least chase updates and clarify issues so the sale could progress smoothly. Instead, I was left with dismissive responses that gave the impression it wasn’t your concern. On the last survey, I was told verbally that asbestos was flagged. I immediately emailed your office to clarify that the surveyor had since informed me it was mica, not asbestos. At that stage you were still representing me, the property was on the market, your sign was still up, and your outlay fee hadn’t yet been paid, but you chose to ignore that email and the follow-up. That dismissal meant no attempt was made to resolve the situation or protect the sale. You point to “30 emails” as proof of communication, but volume is not the same as clarity. The reality is I was constantly chasing updates, receiving vague answers, or silence. This is exactly the lack of communication I have highlighted. Regarding the £180 outlay fee: I was always aware there would be some form of admin charge. What I find unacceptable is that, despite the catalogue of problems, ignored emails, failed sales, and stress caused, you still pursued that fee and issued me an invoice. That shows no accountability or goodwill whatsoever. Most importantly, in your final email to me directly you stated I should not contact you again, and that any further communication should go through my solicitor. That left me with no choice but to leave a public review. For you to now claim I never raised concerns with you directly is disingenuous. Throughout this entire process there has been no accountability, no apology, and no sign of professionalism. Every stage has been marked by blame-shifting, ignored emails, and dismissive responses. Even your reply here shows no willingness to take responsibility, only to deflect. That is exactly why I stand by my review.

Darren · 23 September 2025

Agent replied · 8 September 2025

Darren, Its a pity that you have felt the need to reach out to google to express your concerns over listing a property for sale through GARETH Mills Estate Agents. I am always contactable via email and through phone call however, I have no correspondence of you reaching out direct to me with any concerns you may have had. On reflection of your review, the upgrades you mention within the property were added in as per your request, the correspondence regarding a price reduction is correct this was suggested to generate more footfall through your property which was approved by you. As explained by my office we would never see sight of a survey report because a potential purchaser has paid for this and same was confirmed by your solicitor, regarding updates and communication from my office I have checked through emails from my team and can see over 30 emails sent to you in the period that your property was listed for sale. Explained again the £180 is the outlay fee to cover the advertising of your home ie board, website listing etc However I appreciate your decision to reach out to google for a response and would like to take the time to personally wish you all the best for the future.

5/5

Google

We bought a property in January 2025 through Gareth Mills and the experience from me initially approaching the company through to completion was outstanding. Gareth himself was excellent at the initial stage of discussing what we were looking for through to negotiating between the sellers and ourselves to agree a price and other details. Karen who is in charge of after sales kept me sane as there were complications not helped by the seller’s solicitor. Karen was fabulous at reassuring us, knowing our individual circumstances in a friendly reassuring way. I highly recommend Gareth Mills Estate agents and would go to them first every time.

Gareth · 23 February 2025

5/5

Google

I cannot thank the whole team at Gareth Mills enough, especially Lorraine and Karen for exceeding any expectations of buying a home. The communication was exceptional and liaised with our solicitor making our purchase a very quick process. Again, thank you so much for everything you done for us 🏡 …

Ruthie · 2 October 2025

5/5

Google

After a long time of getting burned by other estate agents, working with Gareth Mills Estate Agents was a complete game-changer. Gareth genuinely stepped up when it mattered and went above and beyond to help me secure my dream house. From start to finish, the entire process was smooth, stress-free, and handled with total professionalism. Communication was clear, honest, and consistent, something that had been seriously lacking in my previous experiences. If you’re looking for an estate agent who actually delivers and has your best interests at heart, I honestly couldn’t recommend Gareth highly enough. Absolutely top class.

Robert · 16 March 2026

5/5

Google

Couldn’t recommend these guys enough. They helped me take down a greenhouse and move it to my allotment, absolutely no hassle at all. They were efficient, careful, and kind, with some great banter thrown in too! Huge thanks to the team. Hopefully I won’t need a greenhouse removed again anytime soon (lol), but if I do need help with anything else, I know exactly who to call.

Chloe · 9 August 2025

5/5

Google

Met Gareth and his team when I moved into the local area. I went into the office and everyone made to feel very welcome. With realtors and estate agents you can sometimes feel that you’re just a sale or a transaction but not with these guys. I had a hard budget that I couldn’t go over, and some pretty demanding needs; Not only did they find me a house, they helped me with all of the other stuff that can be stressful and kept me constantly updated with any changes or information. It’s very easy to give them a 5star rating and a recommendation for buyers, sellers, renters or information seekers. Top notch service from a friendly and professional team, you won’t be disappointed.

Nomad · 22 February 2025

5/5

Google

I have used this estate agent for selling, buying and renting and they are the best. They go the extra mile, always answer queries promptly in a professional yet friendly manner. They now manage my rentals and they are dependable and get things done. I have never had any concerns and am impressed by all of the staff team. I wish all estate agents were as good. See for yourself

Lynda · 16 April 2025

5/5

Google

We have recently purchased a property with garethmills estate agents, the service was highly professional. Gareth Himself is extremely knowledgable and helpful! I do not reside locally and most of my queries were made over the phone, these were always responded to promptly by Gareth and his team. We had some “hold ups” with solicitors and Gareth went above and beyond what was expected of him to contact both sets of solicitors and resolve these issues and speed the process up! We were extremely impressed by the service and highly recommend Gareth Mills.

Stephen · 29 August 2019

5/5

Google

From start to finish Gareth, Karen and team are both a pleasure to deal with and very professional. They efficiently answer any queries and all communication is dealt with very promptly. If you are buying /selling/renting a property I would highly recommend Gareth Mills.

Sandra · 16 April 2024

5/5

Google

I recently purchased a property through Gareth Mills. From start to finish Karen and the team provided an excellent service and are very knowledgeable at various stages of buying a house. Highly recommend as the service and expertise in the market are excellent.

Nicole · 16 April 2024

5/5

Google

My daughter’s house sale was finalised today after a few setbacks beyond our control. I would highly recommend Gareth Mills Estate Agents who took us through to completion in a totally professional manner. Karen Robinson in particular was extremely supportive and encouraging with no problem insurmountable. She really inspired confidence and we were reassured that every situation was under control, so comforting. Thank you so much!!

Mark · 16 April 2025

5/5

Google

Gareth was very professional from the outset and provided excellent advice and guidance on the sale of the home. A few minor improvements were suggested that would be appreciated by potential buyers and this small investment was beneficial. …

Rhonda · 16 December 2025

5/5

Google

Thank you very much for selling our house so well and so efficiently. We were very impressed by your knowledge of your client list and the best way to sell our house. We also liked the fact that we always spoke to you in person and so were able to have an immediate answer to any questions. Will defenetly recommend Gareth Mills estate agents

Linas · 12 March 2025

5/5

Google

I cannot speak highly enough of Gareth and his team. Most of my communication has been with either Karen or Gareth and has consistently been to the highest of standards. They react so quickly to any issues and are beyond supportive. My house was sold very quickly which has been the case on each occasion they have been responsible for the sale of my properties. I will be selling another house in the not too distant future and would not consider going to anyone else. I cannot express how supportive Gareth and Karen have been, taking all the pressure away from me. I would highly recommend Gareth and his team to anyone thinking of selling a property. I have sold quite a few properties in the past, no Estate Agent has come close to Gareth’s in relation to speed of sale, professionalism, support, friendly, understanding and the list goes on….. Thank you so much!

Eithne · 16 April 2024

5/5

Google

“Gareth Mills” estate agents were recommended to me. I was not disappointed. Expert, friendly, good advice. Excellent presentation. Everything I wanted when I put my property up for sale in their hands. Even when I changed my mind and decided to rent my property, using another of their knowledgeable team, utilising them as management agent, I was impressed. They talked me through every stage of renting process, they interview prospective tenants and sort out all the admin required. Use them, take the stress out of renting. Highly recommended. Syd Adams

Sydney · 16 April 2024

5/5

Google

I cannot thank Gareth, Karen, Ashleigh and Irene enough for their help and support whilst selling my property - it was a breeze. The property was listed the same day, the viewings were managed without any hassle, I was kept fully informed every step of the way and the best part was that it was sale agreed WITHIN A WEEK! Certainly would recommend them to anyone looking to list a property as they know their stuff and I will use them again in the future.

Jonathan · 16 April 2024

5/5

Google

I have had many positive outcomes whilst dealing with GMEA. Gareth and team have sold a few houses for me throughout the years and never disappoints! (They are very professional, although the craic is 90! ) great wee team Gareth! Keep up the great work! They are also excellent at property management… give them a go, they won’t disappoint 😉

Leeanne · 22 February 2025

5/5

Google

I have dealt with Gareth and his team for a number of years both as a landlord, selling houses and more recently buying a house through them. They are always professional and will go that extra mile to support you. I cannot recommend them enough.

Kim · 9 August 2025

5/5

Google

Gareth,Karen and the team have been absolutely wonderful during what has been an extremely difficult house move. They have been so professional throughout. We feel that they went over and beyond to make things less stressful. We would highly recommend this estate agents if you want great, personal service. Thanks to you and your team Gareth.PositiveResponsiveness, Quality, Professionalism

Carol · 28 August 2021

5/5

Google

Gareth Mills Estate Agent has been a fantastic choice for managing my rental property. Their professionalism and excellent communication have made the process stress-free. I highly recommend their services!

Claire · 16 April 2024

5/5

Google

Super helpful and Friendly! The whole team could not help me enough and kept me up to date with everything throughout the sale of home. Ashley went out of her way to help me get the house on the market! Absolutely no nonsense with this team!. Straight forward and honest all the way which is so refreshing. Would totally recommend ⭐️⭐️⭐️⭐️⭐️

Erin · 28 August 2020

5/5

Google

Ive used Gareth Mills to sell my house a few times which he did a great job! Viewings were arranged promptly, 5 star communication. Have recommended Gareth to many of my friends and family. I have been with Gareth since he has opened and will continue to stay with him and his 5 star team! Keep up the great work guys!!

Laurence · 28 August 2020

5/5

Google

I would recommend Gareth Mills and his team 100%. Very professional and kept me posted throughout the whole process of selling my apartment which went very smoothly and quickly. Fee charged is also excellent value. Thank you all very much 😊😊 …

Maxine · 24 June 2025

5/5

Google

Brilliant service from Gareth Mills Estate Agents in buying a house. They were extremely professional responsive and very helpful. I highly recommend them to anyone. Particular thanks to Karen who worked really hard enabling a quick completion. Really excellent experience and pleasure to deal with. Many thanks again.PositiveResponsiveness, Quality, Professionalism, Value

Phil · 28 August 2021

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Read Gareth Mills Estate Agents's Google reviews

Questions about Gareth Mills Estate Agents

How many reviews does Gareth Mills Estate Agents have?

Gareth Mills Estate Agents's Carrickfergus office has 135 reviews across 1 platform: 135 on Google. Reviews may appear on more than one platform. Checked 9 October 2026.

What is Gareth Mills Estate Agents's rating?

Gareth Mills Estate Agents is rated 4.6 out of 5 across all 135 reviews, and 4.6 out of 5 on Google from 135 reviews, checked 9 October 2026.

Where is Gareth Mills Estate Agents's Carrickfergus office?

Gareth Mills Estate Agents, 1 Castle Street, Carrickfergus BT38 7BE.

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Ratings and review counts checked 9 October 2026. Is this your office? Claim your page.