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Trusted Traders

Welsh Window Systems

Profile thumb welsh window logo


197 Reviews

Opening Hours
Today -
  • Monday 08:00–17:00
  • Tuesday 08:00–17:00
  • Wednesday 08:00–17:00
  • Thursday 08:00–17:00
  • Friday 08:00–16:00
  • Saturday 09:00–12:00
  • Sunday - Closed


Welsh Window Systems was formed in 1987.
We are a small family business with eight employees.
We are now in our 34th year and our installation and customer care standards are the highest within our industry.
We supply, repair and install all Pvcu, Aluminium and Timber windows and doors.
We are specialists in Aluminium BI-Folding doors.
We service both commercial and domestic customers and tackle any job from a broken handle to a full installation of windows and doors.
We have a specialist repair side and service many commercial and domestic installations.
Recent repairs include changing hundreds of friction hinges to multi high rise offices.
Some of our customers include The Royal Mint, Arup, The M.O.D
Cardiff Wales Airport, Bristol Airport, Home Office and Mrs Jones
We treat all customers with total respect,courtesy, honesty and integrity.
We are an Ethical company and have also have installed running water into 84 homes and helped thousands of children in Sri Lanka after the terrible Tsunami.

What we do

  • Glaziers

    • Double glazing installation
    • Double glazing repair
    • Glass boarding up and replacement
    • Replacement window services and repairs
    • Sash windows
    • Aluminium Windows
    • Velux windows
    • UPVC Windows
    • Double glazed units
  • Doors

    • Bi-fold doors
    • Patio doors
    • Fire doors
    • ​Aluminium doors
    • Composite doors
    • Door repairs
    • Front door
    • French doors
    • Timber doors
    • UPVC doors
  • Locksmiths

    • Emergency locksmith service
  • More Services

    • aluminum stacking
    • specialist locksmith
    • windows

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.

197 reviews
Customer Service
Sort by
Highly recommended, very professional
Customer Service
The work involved replacing 10-12 seated double glazed units in hardwood frames. Welsh Window Systems recommendations were cost effective & they took a lot of trouble to match to existing windows. They arrived promptly, work was carried out very professionally & all tradesmen were a pleasure to deal with. We would have no hesitation in recommending them & indeed have done so.
Lindsay, South Glamorgan Posted on 01/09/2014 , work completed 01/09/2014
Good Job
Customer Service
Good coompany dealt with my bedroom window to stop drafts.Good communication.
Marjorie, Seapoint Posted on 01/10/2013 , work completed 01/10/2013
Large bedroom window repair
Customer Service
A really good company to use with excellent communication. I used them to replace a window in my 2nd floor flat to stop the drafts.
Marjorie, Seapoint Posted on 09/08/2012 , work completed 09/08/2012
Which? Local Review
Customer Service
I would recommend this firm, laid back sales patter with no hard sell and integrity and a very good fitter.
eigonosensei Posted on 05/02/2012 , work completed 05/02/2012
Which? Local Review
Customer Service
Just had this company replace windows in a house i rent. Have used this company for over 20 years which speaks for itself. They only sell the best, installation standards better than anyone i have ever seen. The day after installing my windows they were installing in "The Royal Mint". I also know they have installed Aluminum windows in Cardiff and Bristol Airports. These guys are the best. They are not cheap but compared to the big boys there prices are better, product and after service better. Nothing else i can say Except well done to "Cavan" and his team. Family run business which i like to established 20 plus years
DMORGAN Posted on 20/07/2011 , work completed 20/07/2011
Which? Local Review
Customer Service
Replaced our UPVC windows, front door and conservatory roof. Excellent workmanship and attention to detail with minimum disruption. Cleaned and tidied up thoroughly afterwards. Very professional job at reasonable rates.
GilbertE Posted on 28/04/2010 , work completed 28/04/2010
Which? Local Review
Customer Service
Have used this company for over ten years on new installations and maintenance tasks aligned to both PVC and aluminium double glazing with very satisfactory professional performance from estimates through to installation. Nothing too much trouble to ensure satisfaction with good follow-up on any issues and correction. Proprietor works long hours to ensure project is to satisfaction of quality & functionality for clients.
nythfa Posted on 07/04/2009 , work completed 07/04/2009
Professional work
Customer Service
Eextremely happy with my windows and doors. Professional work on complex job to 3rd floor apartment. replaced windows now when wind blows from east no drafts which they had with prev fitter. Clean/Tidy Good communications/advice. Son used since 100% happy
Brian, Penarth Posted on 12/03/2003 , work completed 12/03/2003