JCM Installations Limited Logo

JCM Installations Limited

Upper Shirley, Southampton, Hampshire
+Approved member since 2012

Services and skills

  • Builder

    26 skills

    Basement / Cellar Conversions

    Brick / Concrete Structural Repairs

    Car Ports


    Concrete Garages



    Extensions / Conversions

    Fire and Flood Renovation


    Garage Conversions

    Garden Studios

    General Building

    Insurance Claim Specialist

    Loft Conversions

    New Builds

    Partition Walls

    Period Property Restoration

    Project Management


    Steel Fabrication

    Structural Design

    Suspended Ceilings

    Sustainable Construction

    Tree Houses

    Wall Tie Replacements

  • Kitchens

    10 skills

    Accessible Kitchens

    Kitchen Appliance Supplier

    Kitchen Designers

    Kitchen Doors - Repair

    Kitchen Fitters - Installation

    Kitchen Supplier


    Worktops - Acrylic

    Worktops - Glass

    Worktops - Granite

  • Carpenter

    7 skills

    Barn Conversions

    Door Fitting / Hanging

    General Carpentry

    Handmade Kitchens Designed / Installed


    Truss Roofing

    Wooden / Timber Structures

  • Drain / Sewer Clearance

    1 skill

    Drain Installation

  • Driveways / Patios / Paths

    6 skills

    Block Paving

    Concrete Driveways

    Driveway Cleaning / Sealing

    Gravel / Shingle Driveways

    Patios / Paving


  • Plasterer

    4 skills

    Dry Lining

    Flat Ceilings



  • Services

    4 services

    • Domestic Work
    • Commercial Work
    • Free Estimates
    • Insurance Work Undertaken


Customer reviews

Overall ratingin last 12 months

9.9Write a review
  • Workmanship9.80 out of 10
  • Tidiness10 out of 10
  • Reliability9.80 out of 10
  • Courtesy10 out of 10
Write a review

81 Total Reviews

The reviews below represent customers' views and not the views of Checkatrade

  • Stairs and first floor landing

    9.75Verified Review

    Justin and his team did an excellent job renovating my stairs. The previous stairs were built incorrectly and were dangerous for the kids. The landing on the first floor was also unstable. However, within three days, Justin and his team fixed everything. They were professional, knowledgeable and helpful throughout the process. After finishing the work, they cleaned the area, and their pricing was very fair. I highly recommend Justin and his team for any renovation/building work.

    Location: SO16
  • Single Storey House Extension

    10Verified Review

    Very happy with the work completed so far. Justin gives good advice as work progresses. All his team get on with their work with minimal supervision and to a good standard. Extension progressing at good rate. Would highly recommend this firm.

    Location: SO15
  • Rebuild of chimney

    10Verified Review

    Justin and his team were able to do this work at pretty short notice despite being really busy as he appreciated the urgency required. Work completed to a high standard and quickly considering the recent bad weather. I will certainly be using JCM again for future building projects.

    Location: SO15
  • Design and construct a concrete base for a shed.

    10Verified Review

    Absolutely great firm. From start to finish i.E. Quote to completion, this project to work out a location for, design and construct a concrete base for a not unsubstantial shed was carried out expertly. No problems whatsoever and everything cleared up afterwards so you wouldn’t know Justin and his team had even been there. I will be using this firm again for projects in the future and have no hesitation in recommending them.

    Location: SO45
  • Kitchen Extension - single floor

    9.75Verified Review

    We always knew what was happening and when the inevitable problems occurred (an old house) it was dealt with swiftly with an immediate solution. We were well informed on progress and what would be happening when. Also had some good advice/ideas along the way - flexible both ways.

    Location: SO15
  • Installation of a soakaway

    10Verified Review

    All groundworks and installation of a soakaway completed quickly and efficiently. Given all the rain we've had, it seems to be working perfectly! Definitely recommend.

    Location: SO15

Company profile

  • OwnerMr Justin Conroy
  • Member Since2012
  • Public Liability InsuranceSelf-Certified
  • AddressNot Yet Checked
  • IdentityChecked
  • Checkatrade T&C'sSigned
  • VATYes: 306525913
  • Company typeLtd Company

Company info

JCM Installations Limited is a Southampton-based, family-run building company that have been working in Southampton (and the surrounding areas) for over 25 years. 
We work to a very high standard on varying works, at a competitive price.

We are helpful, considerate, clean, and tidy, and always strive to cause minimal disruption whilst producing a professional finish to your job. 

We specialise in:


  • Building of single & double-storey extensions (Including all groundworks, footings & drainage, roof installation, steelwork & removal of walls, double glazing. Plastered finish with plumbing.)
  • Building of front porches
  • Loft conversions 
  • Groundworks, driveways, and drainage
  • Decking, patios, and fencing
  • Fascia, soffits & guttering  
  • Chimney removal, repair, and re-pointing
  • Kitchens and bathrooms
  • Painting and decorating


  • Contract and maintenance work for shops, offices, and other businesses

We work to a high standard and have worked with many people in our local area. We have some great feedback and examples of our work can be viewed here at Checkatrade. 

We can offer you a free estimate and advice on your next project. 

We look forward to hearing from you.


Contact details