Trade cover image

Harp Windows Ltd

10/10

Watford, Hertfordshire

£1,000 guarantee T&Cs apply

Checkatrade member since February 2014
10

Skills

  • Conservatory Installation
  • Windows and Doors
  • Window Fitters
  • Patio Doors Installation
  • Wooden Sash Windows Installation
  • Exterior Doors Installation
  • Bifold Doors Installation
  • Aluminium Windows Installation

Services

Customer Reviews

Write a review

10 /10

Based on 4 reviews over the past 12 months

Quality of work

10

Reliability

10

Communication

10

Reviews (254)

  • 10

    Windows and Doors

    Posted 13 May

    On time on budget great service

    We have nothing but praise for Gary and his team at Harp as they made our experience very enjoyable We built a new house which required all external and some of the internal doors including a front door and everything we asked for was delivered to the agreed schedule Nothing was too much trouble, calls and emails were always replied to promptly and we would have no hesitation in recommending this company
    Verified reviewer
    Job location: WD7
  • 10

    UPVC Windows Installation

    Posted 29 April

    Would highly recommend Harp Windows.

    The whole process from pricing up our replacement windows & the visit to the showroom went smoothly. Andy and Bogdan worked very hard, with great attention to detail. They both seem very proud of their work and so they should be. They respected our property and cleaned everything away.
    Verified reviewer
    Job location: WD24
  • 10

    Double Glazing Installation

    Posted 05 March

    A well oiled machine delivering outstanding quality.

    This project was one of the biggest we have undertaken with Harp and Evolution Windows; it delivered results beyond our expectations. The Harp process was professional and very much like a well-oiled machine. From the site survey onwards, it became clear that the level of technical knowledge, capability and experience was in abundance. The experience got even better at the installation phase when their team effortlessly undertook the removal of windows and installed new ones. Nothing was left to chance; the attention to detail and the quality of the work were exceptional.
    Verified reviewer
    Job location: SG4
  • 10

    UPVC Windows Installation

    Posted 25 November 2025

    Replacement sash windows

    Fantastic job from start to finish. Replace 6 sash windows and install new kitchen window. Fabulous job by the 2 fitters and looks great. Highly recommended.
    Verified reviewer
    Job location: WD23
    Paul W
  • 10

    Patio Doors Installation

    Posted 21 May 2025

    Patio door replacement

    Great professional service from initial enquiry up to installation. Ewa, Nicky, Gary, John, Bogdan and Tom were great.
    Verified reviewer
    Job location: HA8

    Response from Harp Windows Ltd

    Thank you for your great feedback, we really appreciate this. Please don't hesitate to get in touch again if we can be of any further assistance to you.

  • 10

    Double Glazing Installation

    Posted 30 December 2024

    Excellent service and quality work

    Writing this review 3 years after installation - still very happy with the standard uPVC windows. I can't speak highly enough of Amy, John and the installation team. Excellent communication - they patiently answered all of the questions. Punctual for the quotation appointment and installation - they are very experienced and knowledgeable. Harp Windows removed aluminium windows and the remnants of the bay window bits and replaced with uPVC. They exceeded expectations - they replaced the window ledge with wood, not pvc, as others quoted. Condensation black wall marks - a thing of the past.
    Verified reviewer
    Job location: HA2

Photos

Company Info

Owner

Mr Gary Hays

Ltd Company

12 years on Checkatrade

VAT Registered

Yes: 541124291

Domestic WorkFree EstimatesCards AcceptedInsurance Work Undertaken

Since 1989 we have been manufacturing and installing high quality home improvement products to properties around Hertfordshire, Middlesex and North London. We're proud to offer our customers a wide choice of quality bespoke products, including Evolution Storm and Evolution Flush, the latest innovation in timber replacement doors and windows. See us at our Watford showroom on the St Albans Road or our factory in Old's Approach Watford, where we manufacture many of our products.

Our Mission:

To provide top quality local installations. We may not be the cheapest out there but we have full confidence in the quality and integrity of our products and our fitting teams. The outward appearance of most replacement windows and doors can be almost identical, but don't be fooled into thinking that all uPVC products are more or less the same! The quality of the materials, construction, overall design, locking and weather proofing systems can vary immensely from manufacturer to manufacturer. Here at Harp, we only install top quality products in uPVC, aluminium and timber:

  • Rehau uPVC casement windows and doors
  • Evolution Storm and Flush timber replacement windows and doors
  • English Door Company for our premium range of front and back doors
  • Origin aluminium windows, doors and bifolding doors
  • Ultimate Rose uPVC premium sliding sash windows
  • Quickslide uPVC sliding sash windows
  • ALUK aluminium windows and doors
  • Kömmerling uPVC casement windows and doors
  • Gerda High security contemporary aluminium and steel doors
  • Bereco sustainably sourced engineered timber windows

Sales and Service:

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. Our commitment to our customers does not simply end once your installation is complete. We provide a comprehensive aftersales service which provides total peace of mind for all our customers and we are fully committed to providing our customers with an after sales service that is second to none.

Browse our comprehensive Checkatrade Image Gallery for a great selection of photos of our many installations.


This trade passed up to 12 Checkatrade vetting checks

Member since February 2014

Individual checks

  • Identification

  • Proof of address

  • Financial

  • Qualifications and accreditations

  • County court judgement

  • Open source media

Business checks

  • Customer Reviews

  • Company trading history

  • Company duplication

  • County court judgement

  • Enhanced business check

  • Director checks

More tradespeople