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Endorsed by Which? Trusted Traders

KJN Home Improvements Ltd

Profile thumb new kjn logo

76 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
    • Conservatory Roof replacement
    • Sun Lounge
  • 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
  • Roofers

    • Roof Light
    • Roofline
    • Cladding
    • Guttering, fascias and soffits
  • Building construction contractors

    • Porches
    • Canopy
  • Garage door repairs and installation

  • More Services

    • windows
    • window

Customer reviews

Why you can trust these reviews

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

76 reviews
Customer Service
Sort by
Home Extension
Customer Service
I found KJN to be knowledgeable and courteous. I was always confident that costs would be met or beaten because there was a clear pricing plan and bi-weekly updates throughout the work. All questions, concerns and snagging were dealt with as soon as they were raised so the end date was not compromised. During the building works there was good clear problem solving so as not to delay the work completion. Sometimes I was nervous at some of the issues being uncovered, but the team were always calm and clear about how to fix things. The whole team of sub contractors were very experienced and friendly, I was so happy with the quality of work and attention to detail. When I had questions or comments while they were in my home, I always felt listened to and respected. So happy with the transformation of my home, and I felt the team understood that we were spending our life savings on this project.
Customer in Hampshire Posted on 15/12/2021 , work completed 12/11/2021
Replaced leaking front window
Customer Service
Brickwork and associated pointing renewed/replaced to a very high standard. window replaced the following day. All work carried out by a very professional team,courteous and considerate. I have no hesitation in recommending this company.
Customer in Hampshire Posted on 06/10/2021 , work completed 22/09/2021
Excellent service
Customer Service
My old conservatory roof was replaced with a Leka System which creates a tiled roof system. The work took just over 2 weeks (excto complete. (excluding weekends), Throughout the installers were polite, on time arriving at 8am most days. They let me know if they were arriving at a later time. The site was left tidy each evening. Some problems were encountered relating to water damage from the previous roof. These were dealt with efficiently and professionally and only extended the schedule by a few days. The end result is excellent and to budget. My anxiety that closing in the roof would make the rest of the property is unfounded. The view down the garden is lovely. The ambient temperature is comfortable during this current spell of warm weather. Last year I used this company to replace an old garage with a summerhouse and adjoining shed. My experience on this occasion matched that of last year. I would definitely recommend KJN
Customer in Hampshire Posted on 09/06/2021 , work completed 28/05/2021
Sun Lounge
Customer Service
KJN have just completed installation of a small sun lounge at my mother's bungalow. Keith Newman has kept in regular contact throughout, from the initial outline plan through to completion. Dates for the work were kept to, and the work is of good quality, reflecting the professional input into the plan with integral blinds in the windows and reduced-solar radiation through the roof. The necessary range of building skills were supplied (brickwork, construction, plumbing, electrics, carpentry). I can recommend KJN.
Martin in Hampshire Posted on 03/05/2021 , work completed 21/04/2021
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
Great service on doors and windows
Customer Service
We used KJN for replacement of some windows/doors and installation of new bi-fold doors. They were prompt in replying and quoting as well as then doing the work, which was limited more by the lead time of on the parts rather than anything else. Courteous and tidy when conducting the work and quick and helpful on any aftersales queries.
Mike in Hampshire Posted on 01/04/2021 , work completed 08/01/2021
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
New Front Entrance
Customer Service
We have used KJN a couple of years ago for an extension and were very pleased with what they did. So we used them again this time to replace front entrance with new Solid Core front door with a window next to the door and brick up rest which use to be glazed. KJN may not be the cheapest but they are reliable and the quality of their work is excellent. I would recommend KJN Home Improvements (Fareham)
Customer in Hampshire Posted on 10/03/2021 , work completed 09/03/2021
KJN Install a new door
Customer Service
KJN were great from the outset. They provided a site for me to design my new front door and once confirmed and a site survey carried out they provided a very competitive quote. The install was very professional and the installers were very courteous. This was a first class install by a great company. I would not hesitate to use them again. I would recommend Keith and his team to anybody.
Customer in Hampshire Posted on 10/03/2021 , work completed 05/01/2021