We use cookies to allow us and selected partners to improve your experience and our advertising. By continuing to browse you consent to our use of cookies. You can understand more and change your cookies preferences here.

Endorsed by



Trusted Traders

KJN Home Improvements Ltd

Profile thumb new kjn logo


59 Reviews

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

Organisations and Awards

Mar 2020


KJN Home Improvements are a highly respected, reliable and local family run firm with over 28 years experience in the building trade. Nestled in the heart of Fareham KJN offer services in and around the entire South Coast. Their team of experts will guide you through your Home Improvements from start to finish whether it be for new windows, doors, conservatories or more general building such as new builds.All projects are undertaken and completed to an extremely high standard by our qualified team of specialists allowing you to enjoy your finished product for many years to come.

What we do

  • Double glazing

    • Double glazing installation
    • Double glazing repairs
    • Double glazing suppliers
  • Conservatories

    • Conservatory maintenance
    • Conservatory repairs
  • Builders

    • Conservatories
    • Extensions
    • Garage conversions
    • Guttering repair services
    • Loft conversions
    • Plastering
    • Porches
    • Building services
  • Landscape contractors

    • Decking
    • Hard landscaping
    • Sheds and shed bases
  • Glaziers

    • Double glazed units
    • Double glazing installation
    • Double glazing repair
    • Sash windows
    • UPVC Windows
    • Triple Glazing
    • Stained glass

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.

59 reviews
Customer Service
Sort by
Installation of dividing doors
Customer Service
Absolutely delighted with the installation of pre-finished oak doors to divide our dining room and lounge. From initial contact through to quotation and then installation the service was exceptional. Friendly, professional and skilled staff. Very professional team, minimal painting of wall required after fitting and area left really clean and tidy. We would not hesitate to use this company again and will be recommending to friends and family.
Kathy in Hampshire Posted on 02/05/2021 , work completed 29/04/2021
Excellent speedy replacement of chimney.
Customer Service
Due to stormy weather, a chimney was close to collapsing. It was so bad that the chimney was swaying in the wind! To prevent the chimney from falling down on the roof KJN Home Improvements Ltd fitted scaffolding within 24 hours. KJN then removed the old chimney & built a replacement which has been much admired by the neighbours. KJN were most helpful in a very dangerous situation. They were also very easy to deal with - always available to discuss the progress on the job.
Laurence in Portsmouth Posted on 19/04/2021 , work completed 11/03/2021
Totally unreliable
I chose KJN Home Improvements as they are the closest Which? trusted trader. When I first phoned this builder for an estimate, I was offered a time about 2 weeks later. I accepted this appointment and booked UNPAID time off work to be in when they came. I stayed in anticipating their arrival and waited and waited and waited. Two hours after the appointment time, I phoned their mobile to check they were still coming. The only explanation given was that Russell was meant to come. There was no apology for not turning up. The man explained he was concreting and clearly wanted to end the call immediately. He assured me I would be phoned back after about an hour when he got back to the yard. I stayed in and waited and waited and waited. They didn’t bother to ring me back at all. I am very annoyed at this apparently unreliable, unrepentant and untrustworthy builder. I stayed inside on this first warm sunny day of spring waiting and waiting and waiting for this builder. I couldn’t go out in the garden to enjoin the sunshine. I couldn’t go out in the garden to help the wife paint the shed. I couldn’t take the dog for a walk or even go in the garden and play ball with her. I wasted most of a day waiting on this builder and had to take unpaid time off work to do so. I do not recommend this apparently unreliable builder with very poor customer service whatsoever.
Customer in Hampshire Posted on 31/03/2021 (Reviewer did not use service)
The trader replied (on 20/04/2021)
Please accept our apologies.We agree on this occasion that you did not receive our usual high quality service.On your appointment date the company received 4 positive Covid-19 results from staff which caused unprecedented demand.This put increased pressure on an existing large scale project and for this we can only apologise. Our reviews show that this is not our usual conduct. We are sorry that you took unpaid leave and stayed in all day. Please accept our sincere apologies in this matter. Kind regards KJN Home Improvements LTD
Drains/ Wall/ Water pipe
Customer Service
I have had 3 buildings works completed by this builder and I have to say all jobs were completed with professionalism on time and with very exacting standards. Communication was excellent and any issues i had were quickly resolved. All on all i have no trouble recommending this builder with complete confidence.
Customer in Hampshire Posted on 09/12/2020 , work completed 12/08/2012
Roof, Windows, and Door replaced
Customer Service
KJN have rebuilt the roof above a ground floor bay window and front door, which had been leaking in bad weather. They also replaced the bay windows, front door and side window. To repair the roof a new oak gallows bracket was made and fitted at one end, and a support post was added to support the middle of the roof. The roof was fully re-tiled, and the cavity trays above the roof were replaced. New lead work was also fitted. The work has been completed to a very high standard, and we have been impressed throughout with the way in which the causes of the problem were identified and resolved - always with our full involvement. Two recent storms have tested the work out and it has passed with flying colours! We will be happy to use KJN for future work on our home.
Customer in Hampshire Posted on 27/08/2020 , work completed 21/08/2020
Customer Service
I have had a patio laid by KJN and I would recommend their excellent work. The men doing the work were on time hardworking and considerate of the current social distancing rules. The work is really lovely and I couldn't be happier with it.
Customer in Hampshire Posted on 20/05/2020 , work completed 20/05/2020
Great high standards maintained
Customer Service
I have used KJN over quite a few years to replace windows, French doors and external doors. The quality of the goods supplied is always A1. The quotes are accurate, communication is easy fast and friendly. The fitters arrive on time and on leaving ensure that everything is looking clean bright and perfect. I wouldn't dream of using someone else!
Customer in Hampshire Posted on 06/02/2020 , work completed 06/02/2020
Fantastic work on our kitchen
Customer Service
From the start KJN Home Improvements have been great. Dave Stamp was there from the beginning to advise us on things and Georgia was extremely efficient and supportive. Mick was brilliant doing all the hard graft of knocking walls down/building walls up and Andy and Mark were fantastic in installing our kitchen and flooring. We are so pleased with the finished results. We would thoroughly recommend KJN and hope to use them again in the future.
Customer in Hampshire Posted on 06/01/2020 , work completed 29/11/2019
New windows and door
Customer Service
An excellent company to deal with from start to finish. The quality of the windows and door are just so much better than the original ones and better than many of my friends who have had windows and doors fitted by other companies. The two fitters Chris and Rich are an asset to this company - polite, tidy and went the extra mile to ensure that the work was first class and exceeded all my expectations. Thank you to you all
Customer in Hampshire Posted on 14/08/2019 , work completed 13/08/2019
Very good job
Customer Service
Firm supplied & fitted double glazed front door. Prompt arrival to carry out work, done to high standard, will use firm again. Highly recommend.
Margaret, Hampshire Posted on 05/08/2019 , work completed 05/08/2019