Hairline map cracking
CosmeticWhat you see: Fine web of cracks under 1 mm across a whole wall
What it means: Normal shrinkage or a finish coat applied too fast. Cosmetic, not structural.
Our repair: Skim & refinish
Stucco Repair in Oakville
Cracks, hollow spots, water stains — we find what is actually causing it, repair it properly and match the texture and colour so the fix disappears. Free written quote, fixed price, across Oakville and the GTA.
25+Years of hands-on experience
4.3★Google rating — 11 reviews
InsuredFully insured & WSIB covered
FreeFixed written quotes
WarrantyWorkmanship guarantee
GTAOakville-based, GTA-wide
Service details
How is stucco properly repaired?
Proper stucco repair cuts back to sound material, fixes the cause (failed flashing, missing mesh, trapped moisture), rebuilds insulation and base coat with new reinforcing mesh, then applies a finish coat tinted and textured to match the existing wall. Surface-only patches skip the diagnosis — which is why they reappear within a couple of winters.
Repair is diagnostic work first. A crack at a window corner, a soft spot under a sill, and a hairline web across a panel have three different causes and three different fixes — and one of them signals water in the wall that can’t wait. We repair all stucco types across the GTA: modern EIFS, acrylic systems and original hard-coat. Our Mississauga repair and restoration project shows the diagnosis-first process, and our post on how stucco repair works explains what to expect step by step. When damage is systemic rather than local, we’ll say so — see full exterior refinishing for that path.
| Symptom | Likely cause | Urgency |
|---|---|---|
| Diagonal cracks at window corners | Movement + missing corner mesh | Repair this season |
| Round impact holes | Hail, equipment, woodpeckers | Repair promptly — open foam invites more |
| Soft or bulging areas | Water trapped behind the system | Urgent — moisture testing first |
| Hairline web across panel | Aged finish, minor substrate movement | Recoat window — plan, don’t panic |
| Staining below windows | Failed sill sealant or flashing | Fix the joint before spring rains |
Repair & restoration from our portfolio
Repair-led projects showing matched finishes and rebuilt details.
More finished exteriors in the project portfolio and gallery.
Where we install
Based in Oakville, working across the Greater Toronto Area. Pick your city for local details, pricing context and nearby projects:
Diagnose it first
What your stucco cracks are actually telling you
Not every crack is a problem, and not every problem is a crack. Find yours below — then you will know whether to call us today or leave it until spring.
Straight vertical / horizontal cracks
Fix this seasonWhat you see: A clean line following a stud, joint or floor level
What it means: A missing or failed control joint — the wall has nowhere to move during freeze-thaw.
Our repair: Cut in a proper control joint, re-mesh, refinish
Diagonal cracks from window corners
Fix this seasonWhat you see: Cracks running at 45° off a window or door corner
What it means: Stress concentration with no diagonal mesh reinforcement at the opening.
Our repair: Open up, add corner mesh, rebuild base coat
Stair-step cracking on block or brick
Call us nowWhat you see: Cracking that follows the mortar joints behind
What it means: Movement in the substrate itself — the stucco is only reporting it.
Our repair: Substrate assessed first; stucco repaired after
Bulging, hollow or soft areas
Call us nowWhat you see: The wall sounds hollow when tapped, or flexes
What it means: Water is behind the system and has debonded it from the substrate.
Our repair: Remove to sound material, dry out, rebuild the assembly
Rust stains, dark streaks, efflorescence
Call us nowWhat you see: Brown streaks or white powder below cracks and trims
What it means: Water is getting in and out — usually failed caulking or missing flashing.
Our repair: Trace the water path, flash and seal, then patch
Not sure which one you have? Text a photo to (905) 973-6470 and Musa will tell you straight — including when the honest answer is “leave it alone”.
Real numbers
What stucco repair costs in the GTA
Ranges we actually quote in 2026, before seeing your walls. Access, height and how much has to come off drive the final number — the written quote we give you is fixed.
| Work | Typical range |
|---|---|
| Caulking & sealant renewalWindows, doors, trims and control joints | $6 – $12 / linear ft |
| Crack repair (per crack, routed & meshed)Cut out, mesh, base coat and texture match | $120 – $400 each |
| Patch & texture match (small area)Impact holes, small failed sections up to ~20 sq ft | $450 – $1,200 |
| Section rebuild (water damage)Remove to substrate, dry, rebuild base + finish | $18 – $34 / sq ft |
| Full elevation refinishNew base coat, mesh and finish over one wall | $9 – $16 / sq ft |
Anyone quoting a full re-stucco before looking behind the finish is guessing. We open a small test area first so you are paying for what the wall actually needs — see why the cheapest quote usually costs more.
Repair or replace
When patching is the wrong answer
Repair makes sense when…
- Cracking is limited to one elevation or a few openings
- The wall sounds solid everywhere you tap it
- The finish is intact and we can colour- and texture-match it
- Water is getting in through a traceable point — a joint, a sill, a missing flashing
Replacement is the honest call when…
- Large areas sound hollow — the system has debonded
- The substrate behind is wet, soft or rotted
- The original job has no control joints at all
- Patch after patch has already been done and keeps failing
We quote both when both are real options, and tell you which one we would pick on our own house. Related: signs of water damage behind stucco · why GTA winters crack stucco · how stucco repair is done step by step.
How we work
From first call to finished wall
Site visit & honest diagnosis
We look at the actual walls and tell you what they need — and what they don’t.
Fixed written quote
System, prep, colour and timeline on paper. No hourly surprises.
Prep, detailing & finish
Control joints, mesh, flashing and finish coats done the way they should be.
Clean-up & walkthrough
Site left clean, and you sign off on the result before we leave.
FAQ
Stucco repair questions, answered straight
How much does stucco repair cost in Toronto and the GTA?
Most repairs land between $450 and $2,500. Crack repair with routing, mesh and a texture match runs $120–$400 per crack; a water-damaged section rebuilt back to the substrate runs $18–$34 per square foot; refinishing a full elevation runs $9–$16 per square foot. We give a fixed written quote after seeing the wall, so the number does not move once work starts.
Can you match my existing stucco colour and texture?
Almost always. We match the texture by sample — sand, swirl, knockdown or dash — and tint the finish to your existing wall, then test on a small area where it will not show. On sun-faded acrylic finishes a perfect match is not possible on one small patch, so we usually refinish to the nearest control joint or corner so the repair disappears.
Is a hairline crack in stucco serious?
Usually not. Fine map cracking under about 1 mm is shrinkage and is cosmetic. What matters is where water can enter: a single straight or diagonal crack that runs from a window corner, or any crack with a rust or dark stain below it, means water is moving through the wall and should be dealt with before winter.
How long does a stucco repair take?
Caulking and crack repairs are usually one day. A patch with texture matching is one to two days including cure time. A water-damaged section rebuilt to the substrate takes three to five days because the base coat has to cure before the finish goes on — rushing that is exactly why cheap repairs fail.
Can stucco be repaired in winter in Ontario?
Emergency sealing and temporary weather protection, yes — any time. Cementitious base coats and acrylic finishes need sustained temperatures above about 5°C to cure properly, so full repairs are scheduled from roughly April to November. If you find damage in January, we will make it watertight now and book the permanent repair for spring.
Will my home insurance cover stucco repair?
Sudden damage — impact, storm, a burst pipe behind the wall — is often covered. Gradual deterioration, failed caulking and normal cracking are maintenance and are not. We document what we find with photos and a written scope, which is what your adjuster will ask for.
Do you repair stucco you did not install?
Yes — most of our repair work is on other contractors’ stucco, including EIFS installed 20 or more years ago. We assess the system that is actually there, tell you honestly what shape it is in, and repair it with compatible materials rather than smearing something new over the top.
Ready to upgrade your exterior?
Tell us about your project and get a free, fixed written quote. Oakville-based, serving the whole GTA — open 24 hours.