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Doors & Windows

Interior Door Installation in Ontario

An interior door should close with one finger and latch with a quiet click. When it drags, sticks or swings open on its own, either the door or the frame is out of true — and in most Ontario houses more than a few are. Replacing hollow, flat builder doors with solid-core or panelled ones is one of the most noticeable upgrades a hallway can get, both for looks and for sound.

There are two kinds of job here. A pre-hung door comes already mounted in its frame and replaces everything, which is the clean fix when the old jamb is damaged or was never square. A slab swap fits a new door into your existing frame, which means carefully transferring hinge mortises and the latch bore — less material, more precision.

We hang single doors, do whole-house swaps, and fit the fiddlier types too: bifolds that jump their track, barn doors that need proper blocking behind the drywall, and pocket doors when the wall allows. Count your doors, note the sizes if you can, and send photos for a free quote.

What this covers

  • Pre-hung door installation
  • Slab-only door swaps into existing frames
  • Bifold and closet door installation
  • Barn door hardware and mounting
  • French and double door fitting
  • Hinge mortising and latch drilling
  • Handles, locks and privacy sets
  • Casing and trim to finish the opening
  • Old door removal and disposal
  • Adjusting doors that stick or won't latch

Just need one small job done?

Replace one interior door

What affects the price

  • Number of doors — whole-house swaps price far better per door than singles
  • Pre-hung versus slab-only: slabs cost less in material but take more fitting time
  • Door construction: hollow core, solid core, or solid wood
  • Non-standard sizes in older homes that need trimming or custom orders
  • Out-of-square openings that need shimming and adjustment
  • Hardware: reusing yours versus supplying new handles and hinges
  • Painting or finishing, if you want the doors delivered ready and done

Every home is different, so we don’t publish flat prices — the quote is free and based on your actual job.

Interior Door Installation near you

We take quote requests across Ontario. Local pages:

TorontoOttawaMississaugaBramptonCaledonHamiltonVaughanMarkhamRichmond HillAuroraNewmarketGeorginaWhitchurch-StouffvilleKingOakvilleBurlingtonMiltonHalton HillsOshawaWhitbyAjaxPickeringClaringtonKitchenerWaterlooCambridgeLondonBarrieInnisfilBradford West GwillimburyCollingwoodSt. CatharinesNiagara FallsWellandGrimsbyFort ErieGuelphWindsorKingstonGreater SudburyPeterboroughThunder BayBrantfordBellevilleSarniaWoodstockStratfordOrangevilleCornwallNorth BaySault Ste. MarieChatham-KentOrilliaWasaga BeachMidlandNew TecumsethSt. ThomasKawartha LakesCobourgPort HopePrince Edward CountyQuinte WestLeamingtonOwen SoundBracebridgeHuntsvilleNiagara-on-the-LakeTimminsBrockville

Common questions

Hollow core or solid core — is the upgrade worth it?
For bedrooms and bathrooms, usually. Solid-core doors cut noise noticeably and feel substantial when they close; the difference is obvious the first day. Hollow core still makes sense for closets and low-traffic rooms where nobody needs the soundproofing.
Can you just replace the door and keep my existing frame?
If the frame is square and sound, a slab swap works and saves money. The catch is fitting: hinge positions and the latch bore have to be transferred precisely, and older openings are often a non-standard size that needs the new slab trimmed down. Photos of the frame and a width measurement tell us quickly which route makes sense.
My door sticks every summer. Do I need a new one?
Probably not. Seasonal sticking is usually humidity swelling the door or the house shifting the frame — a plane along the binding edge, hinge adjustment, or a strike-plate move often fixes it for good. That's a small-job visit, not a replacement.
Do you take the old doors away?
Disposal can be included in the quote — just ask. On whole-house swaps that's a fair pile of material, so it's worth deciding up front rather than finding out on the day.
Can a barn door go on any wall?
Most walls, with proper preparation. The track has to anchor into solid backing — studs or a mounted header board — not just drywall, and you need clear wall space beside the opening for the door to slide onto. Light switches and outlets in the slide path are the usual complication; we check for those before quoting.

Ready to sort out your interior door installation?

Tell us what your home needs — a small fix or a full project — and get a free quote.

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