Sigma Computer Systems

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Sigma Computer Systems has been providing quality computer services to Kemptville and surrounding areas since 1997.

We were established with the main objective of providing affordable, qualified computer services to smaller urban areas. Our main focus is computer repairs, upgrades, networking and computer sales - both new and used systems and laptops.

Please contact us for product pricing and other company related information.



Featured Products


HP Elitebook 840G5 - Refurbished

$499.00 In Stock

14", Intel i7 8th Gen, 16GB, 500GB m.2 SSD (New), Windows 10 or 11 Pro


HP Elitebook 850G5 - Refurbished

$589.00 In Stock

15.6", Intel i7 8th Gen, 16GB, 500GB m.2 SSD (New), Windows 10 or 11 Pro


HP Elitebook 850G7- Refurbished

$649.00 In Stock

15.6", Intel i7 10th Gen, 16GB RAM, 500GB SSD (New), Windows 10 or 11 Pro

Dell 7070 SFF Desktop - Refurbished

$549.00 In Stock

Intel Core i5, 9th Gen, 8GB RAM - 500GB SSD (New) - Windows 10 or 11 Pro

"The Ryan’s Well Foundation is grateful for the excellent service and advice given and highly recommends Sigma Computers. Their attention to detail as well as available support has been very much appreciated."
More happy customers

Home and Business Systems

  • ASUS H610M-E-D4 Mainboard
  • Integrated Video, Network, Sound
  • INTEL I5-14400 Processor
  • CRUCIAL DDR5 5600 16GB
  • Kingston NV3 500GB NVMe SSD
  • Coolermaster N200 Case
  • Coolermaster 550W P/S
  • Windows 10 or 11 Home Premium
  • Monitor sold separately

    $Call

    • Authorized Reseller

    • Authorized Reseller

    Products Available

    • Cabling
    • Card Readers
    • CD/DVD Disc Medias
    • Computer Cases
    • Computer Systems
    • Cooling
    • Digital Cameras and Web Cams
    • Flash Drives
    • Gaming Accessories
    • Hard Drives
    • Hard Drives - External
    • Hard Drives - Notebook
    • Hard Drives - Solid State
    • Headphones and Microphones
    • Keyboards
    • LCD Monitors
    • Memory (RAM)
    • Mice
    • Motherboards
    • Network - Switches
    • Network - Wired
    • Network - Wireless
    • Notebook Accessories
    • Notebooks
    • Power Protection
    • Power Supplies
    • Processors
    • Sound Cards
    • Speaker Systems
    • Tablet PC
    • Video Capture Products
    • Video Cards