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Endorsed by Which? Trusted Traders

GMI Aerials Limited

Profile thumb gmi logo

95 Reviews

Opening Hours
Today - 08:00–17:00
  • Monday 08:00–17:00
  • Tuesday 08:00–17:00
  • Wednesday 08:00–17:00
  • Thursday 08:00–17:00
  • Friday 08:00–17:00
  • Saturday - Closed
  • Sunday - Closed

What is a Which? Trusted Traders Hertfordshire Trading Standards Approved Endorsement?

Which? Trusted Traders has partnered with Hertfordshire Trading Standards to create a Hertfordshire Trading Standards Approved endorsement. In addition to our standard trading standards assessment, this trader has had a DBS check and is subject to a Trading Standards intelligence check

Organisations and Awards

Aug 2020


GMI are an independent, family run business established in 1995. We provide a friendly, honest and competitive service. We understand that television viewing is an integral part of your home entertainment. Our aim is to ensure you enjoy the best and most reliable reception possible. We are specialists in the installation, realignment and repair of Digital TV/FM/DAB Aerials, Satellite Dishes/SKY +/SKY Q/FREEVIEW/FREESAT. We also provide new cabling and Wall Mount TV Sets. All our engineers are Industry Qualified and have up to date training throughout the year. We only use top quality equipment prolonging the life of systems, therefore benefiting our customers and being cost effective.

Our customers have been coming back to us again and again for 25 years because we have their trust and they know we are going to diagnose the problem and fix in a timely, conscientious manner and at a fair price. From domestic homes to blocks of flats, office developments and stately homes. We are here to help you.

What we do

  • Aerial and satellite installers

    • Wifi Installations
    • TV mounting
  • Cleaning services

    • Gutter cleaning
  • TV services

    • TV aerials
    • TV installation
    • TV repair
  • Smart Homes

    • Home Cinema
  • More Services

    • aerial erectors
    • sky q
    • satellite
    • tv cabling
    • fm
    • dab

Customer reviews

Why you can trust these reviews

All reviews are verified as being genuine and a true customer of this trader.

How can we be so sure?

100% of the reviews we publish have been through our stringent moderation process.

95 reviews
Customer Service
Sort by
Examination & Replacement Aerial
Customer Service
I contacted this company during the week of 4th April 2022. Arrangements were made for an engineer to attend the following week (13th April) Dave looked at the situation and immediately identified that one of the 2 aerials I had was not required and that the other one was disintegrating. He gave me a quote there and then to remove existing aerials and their cables, remove all unnecessary cables and fit a new aerial. He found a major fault with the main aerial which had been causing me problems which was good for me to know. The work was completed and he removed the original aerials and cables etc from my property. He made sure the signal from the new aerial was good. In fact it was excellent. Dave was an absolute gentleman. I would strongly recommend this company. Polite, Courteous, Respectful of Property and Professional.
Customer in Hertfordshire Posted on 13/04/2022 , work completed 13/04/2022
The trader replied (on 26/04/2022)
Hello, I know who this customer is as you kindly emailed me and left me a telephone message and I would just like to say thanks again for a fantastic review. This means the world to us and we are very grateful to you too. All the best - Michelle and the Team at GMI Aerials.
Storm Damage
Customer Service
Our TV aerial was damaged in the recent storms. GMI proved reliable and efficient. The engineer turned up at the agreed time, made his diagnosis, explained the problem and got to work. The outcome was a new aerial with cabling at a very acceptable price. The engineer was friendly, helpful and efficient.
Customer in Hertfordshire Posted on 17/03/2022 , work completed 17/03/2022
The trader replied (on 09/04/2022)
Thank you for taking the time to give us a 5 star review. The engineer who attended has been advised of your review and is pleased that he has met your expectations. From all of us here at GMI Aerials
Customer Service
I needed a new aerial as changed from cable TV I rang GMI Aerials and got a very prompt service they carried out the work the next day excellent job done very tidy work and very helpful and polite staff. Would definitely recommend this company and will use them again if I need anything else done.
Customer in Hertfordshire Posted on 12/02/2022 , work completed 08/02/2022
The trader replied (on 16/02/2022)
We are delighted and very grateful to receive your lovely review and look forward to assisting you again in the future if were needed. Thanks again from all of us at GMI Aerials LTD.
Friendly, quick and straightforward
Customer Service
We needed our existing aerial connecting to new internal feeds terminated in the loft and have the signal assessed if amplification was required. GMI came out and quickly assessed and scoped the job, quoted and subsequently carried out the work without any issues. They connected everything as we requested and tested each internal TV point to confirm the signal was sufficient. They were prompt and friendly. Great work… thank you 😊
Customer in Hertfordshire Posted on 14/12/2021 , work completed 14/12/2021
The trader replied (on 15/12/2021)
Hello and thank you for leaving us a review at such a busy time of the year too. We all are very grateful and are so pleased that you were happy with our services and our team. Merry Christmas from all at GMI Aerials LTD
Prompt and Efficient Service
Customer Service
Very helpful and knowlewdgeable engineer. Gave a price and within 30 mins had 2 people on site replacing storm damaged aerial system. We will go back to GMI if we need any further aerial works.
Customer in Hertfordshire Posted on 03/12/2021 , work completed 12/11/2021
The trader replied (on 09/12/2021)
Hello and thank you for your kind review and hope all the residents are enjoying a perfect picture within the block of flats. from all of us at GMI Aerials LTD
Cannot praise enough
Customer Service
My mum could not praise Geoff and GMI aerials enough. She felt completely safe, always made aware of the costs and what he was doing to rectify the issues. Quality, value, trust, friendly and professional. No hesitation in recommending.
Customer in Hertfordshire Posted on 11/11/2021 , work completed 11/11/2021
The trader replied (on 24/11/2021)
We genuinely loved to read your review and we are so happy that we could put your mind at rest and help your Mum feel comfortable with workmen in her home. Thank you for taking the time to write this review from all here at GMI.
TV Aerial replaced
Customer Service
Some Freeview channels were showing pixelation in strong winds. My phone call was answered in a couple of rings, problem discussed, and a slot booked for engineer to come and look. The office phoned back shortly after to say engineer was free now and was it convenient. Was able to show the problem although the test gear showed a strong signal. Decided to have a new aerial to replace the 40 year old one and the original slot was used for that. On the day Dave phoned to say he was on his way and arrived early, new aerial fitted outside, cable run length of loft, and old aerial taken away in under an hour. Great service.
Customer in Hertfordshire Posted on 03/11/2021 , work completed 02/11/2021
The trader replied (on 11/11/2021)
Thank you for your review which means such a lot to. We really appreciate your business and your feedback. Please let us know what we can do for you in the future. From Michelle and all at GMI Aerials.
Professional and Fast
Customer Service
This installation was perfect from start to finish. I was consulted every step of the way, in a friendly & professional manner, and the work was quickly & efficiently carried out. I couldn't be happier!
Customer in Hertfordshire Posted on 27/10/2021 , work completed 27/10/2021
The trader replied (on 11/11/2021)
Hello - It's so lovely to receive feedback from a customer like that. We are very grateful that you took the time to give a review. From Michelle at GMI Aerials
Attaching large smart Tv to wall and setting up
Customer Service
Geoff arrived at agreed time and completed work ensuring television was level when fitted. Completed original set up as well. Very pleased I had chosen to use them again, I have had previous experience with aerial and transponder repairs.
Customer in Hertfordshire Posted on 25/10/2021 , work completed 25/10/2021
The trader replied (on 11/11/2021)
Thank you for your 5 star rating and for your return custom. We strive to give complete satisfaction and thank you for acknowledging that. From Michelle and all at GMI Aerials.
Renewed old aerial and booster etc.
Customer Service
Friendly, efficient, and TVs now work properly. What's not too like?
Roger in Hertfordshire Posted on 01/10/2021 , work completed 01/10/2021
The trader replied (on 12/10/2021)
Thank you for you Review Roger - so appreciated by all here at GMI Aerials LTD