A KOSO job: a tall great room wall of windows, every wall and ceiling hung with drywall.

Drywall, installed and finished.

Supply, hanging, taping, mudding and sanding for builders and homeowners across Ottawa.

2 million sq ft
installed annually
15+ years
in drywall
5.0 on Google
from 20 reviews
Licensed and insured
free quotes

Recent work

Custom homes, basements, renovations and commercial jobs across Ottawa.

Call for a free quote

New jobs go up on Instagram and Facebook.

After: the same room with the walls and ceiling hung, the window at the far end.
Before: a framed and insulated room in Findlay Creek with a stack of drywall in the middle of the floor.
Findlay Creek, before and after A new build, framed and insulated, then boarded wall to wall. Drag the line to compare.
  • Level 5 finish

    5/8 fire-rated board throughout

  • Window wall

    Great room, boarded

  • Upper floor, Union West

    Delivered on schedule

  • Basement

    Framed to boarded

  • Hallway

    Both sides boarded

  • Bathroom, Union West

    Shower in backer board

  • Laundry and washroom

    Converted basement storage room

  • Ceiling repair, Barrhaven

    Done in a morning

Services

Material supply included, start to finish.

The KOSO crew hanging drywall in a new basement: one measuring a sheet, the ceiling half boarded.

Drywall installation

We supply the board and hang it on walls and ceilings, including Type X fire-rated board and resilient channel for sound.

A basement with every seam and corner taped and mudded, stairs at the back.

Taping and mudding

Every seam and corner taped and mudded, up to a Level 5 finish.

A vaulted great room with a Level 5 finish: smooth walls and ceiling around an arched window.

Sanding and finishing

Sanded smooth and left clean, ready for paint and the next trade.

Custom homes, basements, renovations, commercial and repairs.

Reviews

5.0 on Google, from 20 reviews

We found this company through an Instagram advertisement and loved what we saw, so we reached out for a quote. Their communication was clear, and the pricing felt fair from the start. The work provided by the team was efficient and highly professional. My husband and I especially appreciated their close attention to detail. We later hired another company to paint and finish the space, and even they commented on how well the initial work had been done.

Adelina F. Google review

I’m really happy with the work Koso Construction did in my home. The crew was friendly, professional, and kept everything clean throughout the job. They delivered exactly what they promised, and the quality of the drywall and taping work exceeded both my expectations and more importantly my wife’s!

Luis C. Google review

These guys are professional drywallers, they were polite they didn’t smoke any cigarettes, they didn’t swear. It was a beautiful job from the Drywall all the way to the sanding. If you have any Basements, you need done or Renovations or a whole house to build this is the company I would recommend.

Eric W. Google review, a basement

Great company to work with! They were professional, reliable, and the quality of their work was excellent. Everything turned out exactly how I wanted. I’d definitely use them again.

Albion N. Google review

…did an amazing job finishing my basement! Very clean and efficient. Would definitely recommend!!

Atdhe S. Google review, a basement
Two of the KOSO crew hanging drywall at the top of a stairway in a new house, faces turned away.

About

15+ years in drywall, and KOSO since 2012. The work runs from new homes for Ottawa’s top builders, several at once, to resilient channel and Type X in an Orleans condo, a locker room ceiling at Omer Deslauriers high school and a 150-year-old house, gutted and restored.

Whatever the size, the site is left clean.

Residential and commercial, Ottawa and surrounding areas.

Get a free quote

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