Endorsed by Which?

Welwyn Garden Alarms Ltd

5.0

39 Reviews

Opening Hours
Today - 08:30–17:00
  • Monday 08:30–17:00
  • Tuesday 08:30–17:00
  • Wednesday 08:30–17:00
  • Thursday 08:30–17:00
  • Friday 08:30–17:00
  • 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

About

Established in 1985 Welwyn Garden Alarms Ltd are a NSI (NACOSS) Gold security installer. Our objective throughout 30 years of trading is to provide high quality reliable systems with a dedication to customer service.

Driven by our reputation, 95% of our business leads come from recommendations from existing satisfied clients. We are proud of our reputation and continually strive to meet the demands of our clients through an active customer care program with any feedback gratefully received.

If you would like to visit us to view equipment, receive a demonstration or discuss system requirements we will be only too happy to accommodate you. 

Products and services include:

- Intruder Alarms
- Fire Alarms
- Access Control
- CCTV
- Automated Gates
- Integrated Systems
- Electrical Installation
- Fire Extinguishers
- Emergency Lighting

To see full details of what we can do for you please go to our website.

What we do

  • Alarm and security equipment installers

    • Alarm installation
    • CCTV installation
    • Access control
    • Door entry systems
    • Electric gates
  • More Services

    • fire alarm installation
    • burglar alarms
    • emergency lighting

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.

5.0
39 reviews
Customer Service
5.0
Quality
5.0
Value
4.9
Sort by
Excellent, trustworthy, friendly service.
Customer Service
Quality
Value
I have a burglar alarm which is serviced annually. I have been a customer for many years. Recently, we had a new window fitted. Welwyn Garden Alarms arranged placement of a new alarm to that window the following day. It was easy to arrange. The staff are always friendly, trustworthy and professional. There is continuity with both office and engineering staff with the company which is reassuring.
Customer in Greater London Posted on 12/11/2025 , work completed 12/11/2025
House Alarm Annual Service
Customer Service
Quality
Value
Having used Sentry Alarms and then Welwyn Garden Alarms for almost 20 years, I have always found the people friendly and very easy to contact, and they always arrive on time. Our alarm system only occasionally needs a new battery, and once a new scanner, and all at a very reasonable price.
Customer in Hertfordshire Posted on 30/10/2025 , work completed 18/09/2025
Welwyn Garden Alarms the best in the business in the Herts area
Customer Service
Quality
Value
We had an 18-month delay to our house refurb project, and from the first estimate, from Welwyn Garden Alarms, to installation, Peter and the team from WGA were always there to answer our questions. In the event after commissioning, there was a lingering issue with the internal wifi connection, and it was decided to install a hard wire. Job done, system working perfectly, and we always recommend WGA to anyone who asks.
Customer in Hertfordshire Posted on 24/10/2025 , work completed 31/07/2025
Very pleased
Customer Service
Quality
Value
I used Welwyn Garden Alarms limited for the first time to service my house alarm system. I found the company very professional, and the engineer was personable. Helpful and respected my property. Would highly recommend.
Customer in Hertfordshire Posted on 24/07/2025 , work completed 15/07/2025
Friendly and professional engineer - excellent job
Customer Service
Quality
Value
Welwyn Garden Alarms have been looking after our alarms for over 20 years. It is a well run, professional business. The service is always first class, and the staff - from the top down - friendly and personable. To coin a phrase - thoroughly recommended.
Customer in Cambridgeshire Posted on 17/07/2025 , work completed 30/06/2025
Good company to deal with
Customer Service
Quality
Value
I had my alarm installed by Welwyn Garden Alarms almost 20 years ago and they have looked after it ever since - Upgraded to internet/WiFi from fixed line a few years back. Had it serviced today, technician turned up as advised, completed service and App reinstated - Very happy 😃😃😃
Customer in Hertfordshire Posted on 15/05/2025 , work completed 15/05/2025
Great service all round
Customer Service
Quality
Value
Have been a customer for 25+ years. Service has always been very good and personal. Generally it’s the same team members and engineers. Always very helpful and never had a problem with service in all those years. Alarm and CCTV have been very reliable. Any issues (of which there have been hardly any) have always been dealt with promptly. I have always managed to get service appointments easily to fit in with my schedule. I have another property with a different large alarm co. A completely different experience all round. Not a patch on Welwyn Garden Alarms. Wish I could use them for both!
Customer in Hertfordshire Posted on 25/04/2025 , work completed 23/04/2025
Professional, friendly & efficient.
Customer Service
Quality
Value
I have been a client of Welwyn Garden Alarms for over a decade. In that time I've had sterling service and support, from friendly and courteous staff. I have recommended them to family & friends, some of whom are now happy clients.
Customer in Hertfordshire Posted on 27/03/2025 , work completed 27/03/2025
No Problem
Customer Service
Quality
Value
Scheduled service. Technician phoned ahead and arrived promptly and first call of the day. Courteous and competent. Everything completed and no problems. Follow-up documents arrived on the same day. Hopefully no further needs until next year!
Customer in Hertfordshire Posted on 07/03/2025 , work completed 26/02/2025
First Class
Customer Service
Quality
Value
So easy from start to finish. The quote was fast and competitive. Communication was excellent. Fitting was fast and unobtrusive. Couldn't be more pleased and I highly recommend.
Customer in Hertfordshire Posted on 26/02/2025 , work completed 09/01/2025
Excellent Company
Customer Service
Quality
Value
Have used this company for 20 years plus Still receiving great service and support. Have used their services for my own home plus my business premises. Good our fashion service , keep up the good work.
Customer in Hertfordshire Posted on 14/02/2025 , work completed 14/02/2025
Good service
Customer Service
Quality
Value
I have been using Welwyn Garden Alarms for several years now and always had a good service. The engineer always arrives at the scheduled time and is courteous. He works efficiently and completes the maintenance check of our alarm system with no fuss. It is good to use a local company
Customer in Hertfordshire Posted on 13/02/2025 , work completed 05/02/2025
Excellent Service
Customer Service
Quality
Value
We have used Welwyn Garden Alarms over many years and always received an excellent service. The whole process from booking, to visit and invoicing is efficient and professional with their engineers punctual, knowledgeable and courteous. Many thanks!
Customer in Hertfordshire Posted on 27/12/2024 , work completed 05/12/2024
Longstanding good service
Customer Service
Quality
Value
We are longstanding residential customers of WG Alarms, now across 3 different properties, over 30 years: each time we moved home, they were one of our first calls. They've never let us down in all that time and are always available to get issues resolved
Customer in Hertfordshire Posted on 11/12/2024 , work completed 01/11/2024
Excellent service
Customer Service
Quality
Value
Welwyn Alarms installed my alarm and have maintained it for three years. The staff, both office staff and engineers, have always been most helpful and efficient. I would not hesitate to recommend them.
Customer in Hertfordshire Posted on 02/12/2024 , work completed 05/11/2024
First class service
Customer Service
Quality
Value
Our annual service for alarm and CCTV was undertaken professionally and efficiently with all questions answered. Many thanks
Customer in Hertfordshire Posted on 28/11/2024 , work completed 06/11/2024
Excellent Service
Customer Service
Quality
Value
Welwyn Garden Alarms supplied and fitted our CCTV system and have maintained it since with the latest maintenance visit on 21 November. I like to use local contractors whenever possible and Welwyn Garden Alarms have proved to be an excellent choice. They are knowledgeable, experienced and professional with a great customer friendly focus. I am very happy to recommend them for a quality CCTV installation.
Customer in Hertfordshire Posted on 27/11/2024 , work completed 21/11/2024
excellent company to have on your side
Customer Service
Quality
Value
Welwyn Alarms are always available, and always most helpful with any queries or advice. The alarm was serviced this week, and the engineer was very professional and polite. Take a bow Welwyn Alarms, you get my vote!
Customer in Hertfordshire Posted on 18/10/2024 , work completed 16/10/2024
Routine service
Customer Service
Quality
Value
Welwyn Alarms do our annual service and check performance. Very nice folk, technically sound and always on time. Have used them for over 30 years!
Customer in Hertfordshire Posted on 04/09/2024 , work completed 24/08/2015
Alarm Service
Customer Service
Quality
Value
As usual they turned up on time did the service checked everything and sorted it for us. Didn’t try to sell us batteries that weren’t needed very honest and great service as normal. I would highly recommend them.
Customer in Hertfordshire Posted on 08/08/2024 , work completed 07/08/2024
Excellent service
Customer Service
Quality
Value
This was a routine maintenance visit . It was carried out on time, with no fuss by a very competent engineer who was a delight to have around.
Customer in Hertfordshire Posted on 15/07/2024 , work completed 01/05/2024
We made an excellent switch
Customer Service
Quality
Value
We had had the same alarm people for many years, but they were taken over and we were very annoyed at an outrageous fee charged for a 5 minute job last year and vowed to change. We looked around locally and thought Welwyn Garden alarms the most reasonable. We fixed an appointment some months ahead. We were fully justified. They came on time on the agreed date, and did a very thorough job. We made a great choice!
Customer in Hertfordshire Posted on 15/07/2024 , work completed 11/07/2024
Very reliable service
Customer Service
Quality
Value
We have been using Welwyn Garden Alarms for a few years now. They took on our existing alarm system and have been excellent. They always respond and are reliable competent and friendly. No complaints from us!
Customer in Hertfordshire Posted on 26/06/2024 , work completed 10/06/2024
House Alarm Service
Customer Service
Quality
Value
We have had no issues since our alarm system was installed several years ago, and had a service carried out this year with no need to replace any of the batteries in the sensors. The Service Engineer was helpful and efficient, I would recommend Welwyn Garden City alarms to anyone seeking a good and reliable service.
Customer in Hertfordshire Posted on 04/12/2023 , work completed 23/10/2012
Great service. Always friendly and helpful.
Customer Service
Quality
Value
From being fitted many years ago to the regular service visits and help always been there offering agGreat service. Always friendly and helpful.
Customer in Hertfordshire Posted on 30/11/2023 , work completed 29/09/2023