Aluminum doors take a beating, constant traffic, weather exposure, impacts, and the slow creep of frame corrosion. Whether you’re dealing with a sticking door, a leaking frame, a broken closer, or damaged glazing, Delet’s technicians repair commercial aluminum doors across Toronto and the GTA with same-day response.

Book Same-Day Aluminum Door Repair

We repair aluminum storefront doors, swing doors, sliding doors, and heavy-duty commercial entrances, all makes, all configurations. Let’s book your appointment today. We are open 24/7.

Call Now

Aluminum Door Repair Toronto & GTA

We will restore your commercial aluminum doors, ensure they’re functioning at their best, and prevent the need for costly future repairs. Aluminum doors are highly favourable in commercial buildings because of their energy efficiency, durability, and practicality.

While aluminum is resistant to weather and time, maintenance and repair services can become necessary. Our team has the experience, skills, and knowledge to handle all types of aluminum door repairs, including joints and frame complications.

Our Services

Delet repairs every component of commercial aluminum door systems. We work on swing doors, sliding storefront doors, heavy-duty commercial entrances, and aluminum-framed glass assemblies.

See our professional aluminum door repair services below:

  • Joint Seal and Frame Replacement: When seals break, the insulation weakens, allowing cold and warm air to enter the building. Our technicians understand joint control and will determine repair or replacement requirements.
  • Repairing Locks: Locks can accumulate dirt and rust over time, which can lead to difficulties with locking and closing the door. We’ll replace components, clean and align mechanisms, or install new handles.
  • Preventing Corrosion: Corrosion occurs when dust, grime, and moisture penetrate aluminum door frames, locks, or latches. We detect corrosion, perform repairs, and provide preventative maintenance.
  • Frame Repair & Realignment: bent, cracked, or out-of-square aluminum frames corrected or replaced. Includes re-setting the frame in the rough opening and re-shimming for plumb and square. Essential for doors that drag, stick, or won’t seal properly.
  • Glass Replacement: cracked, broken, or fogged insulated glass panels replaced. We work with tempered, laminated, and insulated glass units. For storefront glass emergencies, same-day boarding and 24–48 hr replacement available.
  • Door Closer Repair & Replacement: closers that slam, drift open, or fail to latch adjusted or replaced. We service LCN, Norton, Dorma, ASSA ABLOY, and other major brands.
  • Lock & Hardware Repair: deadbolts, mortise locks, push/pull handles, and panic hardware cleaned, adjusted, or replaced. Corrosion and grime buildup in aluminum lock bodies is one of the most common failure points we see.
  • Hinge Repair & Replacement: loose, seized, or stripped hinges re-secured or replaced. Continuous (piano) hinges on high-traffic aluminum doors replaced when worn.
  • Track & Roller Repair: for aluminum sliding doors, worn or misaligned tracks straightened, cleaned, and lubricated. Rollers replaced when they’ve flattened or seized.
  • Weatherstripping & Seal Replacement: perimeter seals, door sweeps, and threshold gaskets replaced to eliminate drafts, water infiltration, and energy loss.
  • Threshold Repair & Replacement: damaged or worn thresholds rebuilt or replaced. Correct threshold height is critical for accessibility compliance (ACA) and proper door swing.
  • Corrosion Treatment & Prevention: surface oxidation, pitting, and galvanic corrosion treated. We clean, treat, and apply protective coating to arrest corrosion and restore appearance.
  • Joint Sealant Replacement: failed sealant at frame joints and mullions replaced with commercial-grade sealant. Critical for preventing water infiltration in curtain wall and storefront systems.

Common Problems with Commercial Aluminum Doors

Unrepaired aluminum commercial doors become weak and lose their durability. This makes them more prone to break-ins and accidents. Timely repairs prevent further deterioration and the need for expensive replacements.

Here are a few of the most common problems with aluminum doors:

  • Misaligned tracks: Misaligned tracks cause uneven and difficult sliding, opening, and closing the door. Our technicians will remove the door, inspect the tracks, and either straighten the tracks or replace them entirely.
  • Water leaks: When aluminum commercial doors are installed incorrectly face risks of water infiltration. Our team will replace the door’s existing weatherstripping with new, accurately sized weatherstripping to seal gaps and prevent future water leaks.
  • Squeaky Hinges: Aluminium door hinges can collect dirty and incur typical wear and tear, leading to squeaking. In order to address the issue, we will either apply a silicone-based lubricant or replace the hinges.
  • Sticking or Dragging: the most common call we get. Usually caused by frame movement from building settlement, hinge wear, or track misalignment on sliding doors. Left unaddressed, it accelerates wear on the closer, hinges, and frame corners.
  • Water Infiltration & Leaks: aluminum is water-resistant but aluminum assemblies are not inherently watertight. Failed joint sealant, worn weatherstripping, and damaged thresholds are the usual culprits. Leaks at the head or sill of an aluminum door often indicate sealant failure at the frame-to-wall joint.
  • Corrosion & Oxidation: aluminum doesn’t rust, but it does oxidize. White powdery oxidation on the frame surface is cosmetic; pitting corrosion at dissimilar metal contact points (fasteners, hinges, thresholds) is structural. Galvanic corrosion is common where aluminum contacts steel or copper without isolation.
  • Failed Door Closer: a closer that’s too slow lets in drafts and pests; too fast and it damages the frame and startles people. Failed closers that don’t latch are a security and energy loss problem. Toronto’s temperature swings are hard on closer hydraulics, expect replacement every 5–10 years on high-traffic doors.
  • Broken or Cracked Glass Panel: aluminum-framed doors almost always include glass, and glass breaks. A cracked panel compromises insulation, security, and appearance simultaneously. Tempered glass shatters; insulated units fog when the seal fails.
  • Misaligned or Seized Locks: dirt, moisture, and corrosion accumulate in aluminum lock bodies over time. A lock that’s hard to turn, doesn’t engage, or feels loose is a security risk and usually a straightforward repair.
  • Bent or Damaged Frame: impact damage from delivery equipment, vehicles, or forced entry attempts bends aluminum frames. A distorted frame prevents the door from sealing, latching, or closing properly and typically requires section replacement.

Types of Commercial Aluminum Doors We Repair

Aluminum is used across a wide range of commercial door configurations. Delet repairs them all:

  • Aluminum patio and terrace doors: used in restaurant patios, hotel terraces, and commercial outdoor spaces. Sliding and swing configurations, often with multipoint locks.
  • Aluminum storefront swing doors: single and double, with or without sidelites and transoms. The most common commercial door type in Toronto retail and office buildings.
  • Aluminum sliding storefront doors: track-and-roller systems used in retail, pharmacies, and grocery. High cycle count means faster wear on tracks, rollers, and closers.
  • Heavy-duty aluminum entrance doors: thicker extrusions, heavier hardware, and higher-grade closers. Common in office tower lobbies, hospitals, and institutional buildings.
  • Thermal break aluminum doors: two aluminum profiles separated by a polyamide thermal break to reduce condensation and heat transfer. Common in energy-conscious commercial buildings. Requires compatible hardware and careful frame repair to maintain thermal performance.
  • Aluminum and glass curtain wall doors: doors integrated into curtain wall or storefront glazing systems. Frame repairs require matching extrusion profiles and careful sealant work to maintain the weathertight envelope.

Spring Is the Right Time to Service Your Aluminum Doors

Toronto winters are hard on aluminum door hardware, closers thicken in cold, seals compress and set, tracks collect road salt and grit, and frames experience freeze-thaw movement. Spring is the optimal time to inspect and service commercial aluminum doors before high-traffic summer months.

A spring service visit from Delet includes:

  • Frame inspection for movement, gaps, and sealant failure
  • Closer adjustment and lubrication
  • Track cleaning and roller inspection (sliding doors)
  • Lock and hardware lubrication
  • Weatherstripping and sweep inspection
  • Glass panel inspection for cracks and failed seals

Book a spring maintenance visit →

Aluminum Door Accessibility Compliance (ACA)

Commercial aluminum doors in Ontario must meet accessibility requirements under the Accessible Canada Act (ACA) and Ontario’s Accessibility for Ontarians with Disabilities Act (AODA). Non-compliant doors expose building owners to complaints, orders, and potential liability.

Key accessibility requirements for commercial aluminum doors:

  • Door opening force must not exceed 38 Newtons (roughly 8.5 lbs) for interior doors, worn closers that are too stiff are a common violation
  • Door handles must be lever-style and operable with a closed fist, round knobs are non-compliant
  • Threshold height must not exceed 13mm, damaged or raised thresholds create trip hazards and accessibility barriers
  • Minimum clear opening width of 850mm for new construction and major renovations
  • Door closers must have a minimum 5-second closing sweep time from 90° to the latched position

Delet identifies and corrects accessibility deficiencies during repairs, closer adjustments, lever handle retrofits, and threshold replacements are all within scope. We ensure your aluminum doors meet current Ontario accessibility standards.

Aluminum Door Repairs That Improve Energy Efficiency

A poorly sealed aluminum door is one of the most common sources of heat loss in commercial buildings. Failed weatherstripping, worn threshold gaskets, and deteriorated joint sealant can significantly increase heating and cooling costs — particularly for storefront and lobby entrances that are opened dozens of times per day.

Delet’s energy-related repairs include:

  • Perimeter weatherstripping and door sweep replacement
  • Threshold seal and gasket replacement
  • Insulated glass unit (IGU) replacement when fogged or delaminated
  • Joint sealant renewal at frame-to-wall interfaces
  • Thermal break frame inspection — ensuring polyamide inserts are intact and undamaged

For buildings pursuing energy certifications or addressing energy auditor recommendations, we provide written documentation of all seal and glazing work performed.

Should You Repair or Replace Your Aluminum Door?

SituationRecommendation
Single component failure (closer, lock, seal)✅ Repair
Frame is straight and undamaged✅ Repair
Door is under 20 years old✅ Repair
Glass cracked but frame intact✅ Repair (glass only)
Frame bent from impact (minor)✅ Repair (straightening)
Frame bent from impact (severe)⚠️ Assess on-site
Multiple components failing simultaneously⚠️ Assess on-site
Door is 20+ years old with recurring issues⚠️ Consider replacement
Extrusion profile discontinued, parts unavailable❌ Replace
Significant corrosion to frame structure❌ Replace
Accumulated repair costs approach replacement cost❌ Replace
Upgrading for accessibility or energy compliance❌ Consider replacement

Aluminum Door Problem Diagnosis

Not sure what’s wrong? Use this quick reference to identify the likely cause, then call us to confirm and fix it.

SymptomLikely CauseOur Fix
Door sticks or dragsFrame movement, hinge wear, or track misalignmentFrame realignment, hinge replacement, track repair
Door won’t latchCloser misadjusted, latch worn, strike misalignedCloser adjustment, latch or strike replacement
Water leaking at frameFailed joint sealant or weatherstrippingSealant renewal, perimeter seal replacement
Door slams shutCloser speed set too fast or spring tension too highCloser adjustment or replacement
Door drifts openCloser spring tension too low or failedCloser adjustment or replacement
Glass is foggedInsulated glass unit seal failureIGU replacement
Lock hard to turnCorrosion or dirt buildup in lock bodyLock cleaning, lubrication, or replacement
Squealing or grindingDry or worn hingesLubrication or hinge replacement
Frame feels loose or rockingFasteners failed, frame pulling from wallFrame re-anchoring and sealant repair
White powder on frameSurface oxidation (cosmetic)Cleaning and protective coating
Pitting on frame near fastenersGalvanic corrosionCorrosion treatment, isolation hardware
Cold draft at door perimeterWorn weatherstripping or threshold sealSeal and sweep replacement

Our Workmanship Guarantee

Every aluminum door repair Delet performs is backed by our workmanship guarantee. If a repaired component fails due to our work, we return and fix it, no charge. We stand behind what we do.