Endorsed by Which?

Harp Windows (Watford) Ltd

4.9

67 Reviews

Opening Hours
Today - 10:00–14:30
  • Monday 09:30–17:00
  • Tuesday 09:30–17:00
  • Wednesday 09:30–17:00
  • Thursday 09:30–17:00
  • Friday 09:30–16:30
  • Saturday 10:00–14:30
  • 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 1989, Harp Windows (Watford) Ltd is a family run company manufacturing and installing high quality replacement windows, doors and conservatories. Over the years, we've worked hard to build a reputation for professional integrity, efficient customer service, high quality products and value for money. Customer satisfaction is paramount to us, we do everything possible to ensure our customers are delighted with their new windows, doors or conservatory. For further peace of mind our customers are always welcome to visit us at our St Albans Rd showroom, or our factory in Watford, where we manufacture many of our products. There are many good reasons to choose us as your installer, including:

* Long established and local,
* Members of FENSA, The CPA and Checkatrade,
* Hertfordshire Trading Standards Approved,
* Our products are fully guaranteed for ten years,
* We offer guarantee protection insurance backed warranties,
* Comprehensive aftersales service for complete peace of mind.

What we do

  • Conservatories

    • Conservatory maintenance
    • Conservatory glass heat reduction film
    • Conservatory repairs
    • Hardwood conservatories and orangeries
  • Doors

    • Bi-fold doors
    • Patio doors
    • Fire doors
    • French doors
    • Orangeries
    • Composite doors
    • UPVC doors
    • Front door
  • Double glazing

    • Double glazing installation
    • Double glazing suppliers
    • Double glazing repairs
  • Glaziers

    • Aluminium Windows
    • Sash windows
    • UPVC Windows
  • More Services

    • window installations
    • upvc sash evolution timber replacement

Customer reviews

Why you can trust these reviews

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

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

4.9
67 reviews
Customer Service
4.9
Quality
5.0
Value
4.9
Sort by
Great work done very quicly
Customer Service
Quality
Value
Tom and Bogdan installed 6 windows in a two bedroomed flat in less than a day , great work and very friendly
Customer in Hertfordshire Posted on 09/05/2025 , work completed 09/05/2025
Very good, would use again
Customer Service
Quality
Value
On the whole very good. Would recommend they use "stick down carpet protector" instead of dust sheets. My house is old so quite a bit of black dust which was on some of the carpet despite dust sheets. The carpet had to be professionally cleaned.
Margaret, London Posted on 17/01/2017 , work completed 17/01/2017
Very good job.
Customer Service
Quality
Value
Punctual, pleasant & hardworking. Great job.
Lesley, Hertfordshire Posted on 09/01/2017 , work completed 09/01/2017
New patio doors
Customer Service
Quality
Value
Great service, speedy fitting. Left area clean and tidy. Very professional from start to finish.
Which? Trusted Traders Consumer Posted on 07/04/2017 , work completed 07/04/2017
Good quality
Customer Service
Quality
Value
Good quality work, helpful, work undertaken on day stated and completed on time.
Which? Trusted Traders Consumer Posted on 13/04/2017 , work completed 13/04/2017
Superb job
Customer Service
Quality
Value
Excellent work by Harp Windows, who were recommended to us by friends who used them. Very pleased with the quality of the work & both the salesman (whose name I forget) & Jason the fitter where very professional. Would definitely recommend them.
Judy, Middlesex Posted on 09/08/2017 , work completed 09/08/2017
Brilliant! new doors & windows
Customer Service
Quality
Value
Have just got home to see our new doors & windows, they look brilliant! Jason the fitter, has done a fantastic job, what a craftsman, his work is superb with great attention to detail and finish! as you can guess we're very pleased. John in the showroom & Alan in the factory were very knowledgeable and we appreciated their very helpful and professional advice. We wouldn't hesitate to use Harp Windows again and would recommend them very highly.
gk Northwood Posted on 16/11/2017 , work completed 16/11/2017
Excellent Company and customer ethos
Customer Service
Quality
Value
My wife and I used Harp windows to replace the windows in our house some years ago. They delivered on time and on budget exactly as quoted with a lovely team of people. The product (aluminium internally glazed) has held up really well over the last few years and when we extended we used them again. They matched the windows and installed in the same way, on time and budget while sourcing bifold doors for us as well. The team responded to our queries in a very fast and efficient way revising any quotes quickly for us to evaluate and ensuring we had the correct window layouts (bars and leading etc...) The new windows are of the same high quality as was the installation team. We have used a lot of contractors as part of the extension and had our original builder go bust. In an industry with many variables HARP and its team (particularly Gary Hays) are outstanding and we would not hesitate to recommend them.
Andrew & Kath Posted on 18/03/2020 , work completed 16/01/2020
Courteous, efficient and tidy
Customer Service
Quality
Value
Replaced 4 windows and fitted a new door to the rear of the garage. This was the second time I have used Harp. The first time they supplied a patio door and widow to a new rear extension. The work was done to the agreed budget but was delayed by the Corona virus lockdown. A revised date was agreed and kept to. The fitters were very courteous, considerate (keeping a social distance) and very clean. At the end of the job you could not tell that they had been, everything cleaned up neat and tidy. Very satisfied with product quality based on my previous experience. I would definitely recommend this company.
Customer in Hertfordshire Posted on 30/06/2020 , work completed 03/06/2020
Bi-Fold doors - purchase & installation
Customer Service
Quality
Value
I wanted to get Bi-Flold doors fitted and am so glad I used Harp Windows for this service. I was made to feel comfortable in the show room and was given clear explanations regarding my options - there was no pressure of influence given with my order. Harp Windows visited my house in conjunction with the builder carrying out the work to ensure all requirements were in place and understood so no issues would arise with the door opening and fitment. I was given clear timescales for ordering so knew what to expect and when which were met. The fitting team arrived with the door and were polite. They worked quickly, were clean and the overall result was excellent - the doors fit perfectly and they operate just as expected. I am really happy with the overall look and quality of the door.
Customer in Hertfordshire Posted on 09/07/2021 , work completed 22/06/2021