Harp Windows Ltd
Michelle & Mike

Skills & expertise
- Windows / Doors / Conservatories
- Bifold Doors
- Conservatories
- Conservatory Glass Heat Reduction Film
- Doors
- Double Glazing
- Orangeries
- Patio Doors Supplier / Installer
- Stained Glass
- Window Fitters
- Windows and Doors
Skills & expertise
- Windows / Doors / Conservatories
- Bifold Doors
- Conservatories
- Conservatory Glass Heat Reduction Film
- Doors
- Double Glazing
- Orangeries
- Patio Doors Supplier / Installer
- Stained Glass
- Window Fitters
- Windows and Doors
Company info
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,
- EcoSliders uPVC sliding sash windows,
- ALUK aluminium windows and doors,
- Kömmerling uPVC casement windows and 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.
Contact details
Reviews Summary
The reviews below represent customers' views and not the views of Checkatrade
Customer Reviews
6 windows in a first floor flat
The team from Harp did a great job . From providing all the info needed to comply with the landlord’s licensing requirements to installation . The windows look lovely and the guys did an amazing job with so little mess. Very pleased indeed . Given the windows industry suffers a bit in terms of reputation , it’s been a pleasure lovely to deal with knowledgeable, good people before and during the installation . Thank you - we are really pleased !
Bifolds and patio doors
Excellent service form start to finish. Other companies had a 8-10 week wait, garl had our bifolds with us after 2weeks. The men fitting the doors where so friendly and helpful they got on with the job and tidied everything up and even offered to come back and seal the doors when our other work had been completes 10/10 service and quality
All new windows and back door
What fantastic service I have received from the start of engaging with Harp until completion of the job. Everyone was an absolute pleasure to deal with and the windows look great - the left so little to sort out and cleaned up so nicely. I would highly recommend Harp to anyone!
Patio doors
We have used Harp Windows previously for windows and doors which is why we used them again to replace our old patio doors, excellent job again, sturdy doors fitted well by experienced fitters, would highly recommend.
Replacing 4 sets of windows and one patio door
Excellent job. The two installers seemed to enjoy their work. Clean, quick, immaculate repairs to any damage. All windows and door open easily. Looks really good. Only 2 concerns: 1) they didn't wear ear defenders during noisy work, or masks to protect against fumes from the sealant. 2) the cavity wall insulation was made of tiny styrofoam balls. They didn't lay down a tarp outside, so the balls went all over the grass. I tried to sweep up but will never get them all. (My vacuum doesn't reach round the side of the building!)
Score Breakdown
Courtesy
Tidiness
Timekeeping
Workmanship
Reply from Harp Windows Ltd
Thank you for your great feedback , it is very much appreciated and we are delighted you are so happy with your new windows and door. To quickly address your concerns as listed: as a general rule ear defenders are not commonly used by window installers in the trade. It is not our policy to insist on installers wearing protective masks when applying sealant – this is down to each individual installer’s personal choice. I can only apologise for the inconvenience of the Styrofoam balls in this instance, unfortunately they are notoriously difficult to control, but thank you for bringing it to our attention. In the meantime, if we can be of any further assistance, please don’t hesitate to get back to us at any time.
New Windows and doors
Harp Windows were great to work with from the start. Very professional and friendly.
Services
- Domestic Work
- Free Estimates
- Insurance Work Undertaken
- Cards Accepted
Locations
Works in
Amersham, Barnet, Beaconsfield, Bucks, Chesham, Edgware, Gerrards Cross, Harrow, Harpenden, Herts, High Wycombe, North London, Northwood, Pinner, Rickmansworth, St Albans, Stanmore, Uxbridge, Watford