The best drywall contractors in Ottawa are the WSIB-covered, liability-insured crews that quote in writing by the square foot, specify the finish level (Level 4 versus Level 5) in the contract, and can show you recent taping work under raking light. There is no official ranking, so the reliable way to hire well in 2026 is to compare three written quotes on identical scope: expect roughly $2.50–$5.00 per square foot of board for supply, hang, tape, and sand in an Ottawa home, or about $70–$110 per 4x8 sheet installed and finished. Small repair calls typically carry a $250–$450 minimum. This gui...
Nobody hands out an official title for best drywaller in Ottawa, so treat the phrase as a checklist rather than a brand. Start with the verifiable items: an active WSIB clearance certificate you can request by number, at least $2 million in general liability coverage, an HST number on the invoice, and a written quote that names the board thickness (typically 1/2" for walls, 5/8" Type X where fire separation is required, and moisture-resistant board in bathrooms). The best crews specify the finish level in writing, state how many coats of compound are included, confirm whether they sand or use a dustless vacuum sander, and say plainly whether priming is in or out of scope. They also show up for a site measure rather than quoting sight-unseen off a phone call. Reviews matter, but read them for substance: comments about flat butt joints, clean corner beads, and tidy dust control tell you far more than a star average. If a contractor cannot explain why your basement needs a moisture break or resilient channel, keep looking.
Cash-only pricing with no invoice, a deposit over 30 percent before any material lands on site, no WSIB number, a refusal to name the finish level, and a promise to hang and finish a whole basement in two days are all warning signs. Compound needs drying time between coats — a rushed schedule almost always means visible joints later.
The single biggest reason two Ottawa drywall quotes differ by thousands of dollars is finish level, and cheap bids often leave it out entirely. Level 3 is a taped-and-two-coat finish suitable for heavy texture or a garage — it is not acceptable under flat paint. Level 4 is the residential standard: tape coat plus two coats over joints and fasteners, sanded smooth, and it is what most Ottawa homeowners should be paying for in living areas. Level 5 adds a skim coat of compound across the entire surface, which is what you want in rooms with large windows, pot lights, or long uninterrupted walls where side lighting exposes every imperfection. Level 5 typically adds $0.75–$1.50 per square foot to the job in 2026. Ottawa's older neighbourhoods complicate this further — homes in the Glebe, Westboro, and Hintonburg often have plaster walls or wavy framing, so a good contractor will discuss shimming or furring before boarding rather than telegraphing the old crookedness through new drywall.
Open-concept great rooms, hallways lit by wall sconces, ceilings under pot lights, and any wall finished in a high-sheen or dark paint. Everywhere else, a properly executed Level 4 looks excellent and saves real money.
For planning purposes in 2026 Canadian dollars, expect supply-and-install drywall in Ottawa to run roughly $2.50–$5.00 per square foot of board, which works out to about $70–$110 per 4x8 sheet hung, taped, and sanded. Hang-only labour (you supply the board) runs closer to $1.20–$2.00 per square foot, while taping and finishing alone typically runs $1.40–$2.75. A standard unfinished basement of 800–1,000 square feet of floor area commonly needs 90–130 sheets and lands around $7,500–$14,000 for drywall alone, before framing, insulation, electrical, or flooring. A single 12x12 bedroom re-board is usually $1,800–$3,200. Small repairs — a hole from a doorknob, water-stained ceiling patch, or a nail-pop sweep after the first winter — generally carry a $250–$450 service minimum because mobilization and multiple drying-time return visits cost more than the material. Ceilings, tall stairwells, and any work above eight feet add 15–30 percent for staging and handling.
Debris removal and disposal ($200–$500 for a basement's worth of offcuts), 5/8" Type X board where code requires it, mould-resistant board in bathrooms, and priming ($0.40–$0.80 per square foot) are frequent add-ons. Ask for them to be priced in the original quote so they cannot reappear as change orders.
Simply replacing drywall on existing walls does not require a building permit in Ottawa, but the work that usually accompanies it often does. Finishing a basement, moving or removing a wall, adding a bedroom, or altering the layout requires a City of Ottawa building permit, and the inspector will want to see framing, insulation, vapour barrier, and any electrical or plumbing rough-in before you board over it. That sequencing matters: if you close the walls before the framing and insulation inspection, you may be asked to open them again at your own cost. Fire separations also have real drywall implications — the wall and ceiling assembly between an attached garage and the house, and around a furnace room or a secondary dwelling unit, typically requires 5/8" Type X board with properly sealed joints. Good Ottawa drywall contractors know this and will refuse to board until the inspection sign-off is in hand. Treat any crew willing to cover unfinished rough-in as a liability.
Collect three written quotes on identical scope and ask each contractor the same five questions: What finish level are you quoting? How many coats over joints and fasteners? Is disposal included? Who supplies the board? Is priming in scope? Then compare line by line rather than by bottom-line total, because the cheapest number is usually the one missing sanding, disposal, or a coat of mud. Ask for two recent Ottawa references and call them — the useful question is not "were you happy" but "how did the crew handle dust and how did the joints look after the first heating season?" Ottawa's dry winter air shrinks compound and reveals sloppy taping, so the best local crews build in a return visit for touch-ups. Confirm start and finish dates in writing, hold back a meaningful final payment until after your walk-through under bright raking light, and never pay in full before sanding is complete. Browse screened drywall pros in our /directory and request free, no-obligation quotes to compare side by side.
Before final payment, shine a bright work light along each wall at a shallow angle. Seams, fastener dimples, and sanding swirls that vanish under normal lighting show up instantly. Anything you can see under raking light will show through paint later — flag it while the crew is still on site.
There is no official ranking. The best drywall contractors in Ottawa are the ones that carry WSIB clearance and at least $2 million in liability insurance, quote in writing by the square foot, specify the finish level and number of compound coats, include disposal, and can provide recent local references. Compare three written quotes on identical scope and hire the one whose details hold up.
Supply and install typically runs $2.50–$5.00 per square foot of board in 2026, or roughly $70–$110 per 4x8 sheet hung, taped, and sanded. Hang-only labour is about $1.20–$2.00 per square foot and taping and finishing alone is about $1.40–$2.75.
An 800–1,000 square foot Ottawa basement usually needs 90–130 sheets and costs roughly $7,500–$14,000 for drywall supply, hanging, taping, and sanding. That figure excludes framing, insulation, electrical, flooring, and permits.
Level 4 includes tape plus two coats over joints and fasteners, sanded smooth, and is the standard for most Ottawa living areas. Level 5 adds a full skim coat across the whole surface for rooms with strong side lighting, pot lights, or dark and glossy paint, and typically adds $0.75–$1.50 per square foot.
Replacing drywall on existing walls generally does not require a permit, but finishing a basement, adding or removing walls, or creating a new bedroom does require a City of Ottawa building permit. Framing, insulation, and rough-in inspections must be passed before the walls are boarded over.
Most Ottawa drywall companies charge a service minimum of about $250–$450 for small repairs such as a doorknob hole, a water-stained ceiling patch, or a nail-pop sweep, because compound drying time usually requires more than one visit.