Arrow Masonry

Professional Lintel Replacement Services

"Lintels (angle irons), I-Beams and C-Channels with welded plates are all used to bridge openings within masonry walls."

Chicagoland Tuckpointing And Masonry Repair

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Professional Lintel Replacement Services

Lintel Replacement & Structural Masonry Repair in Palatine, IL

Arrow Masonry & Exteriors Inc. provides steel and stone lintel replacement in Palatine, IL, and throughout Chicagoland. From our Palatine office at 515A S. Vermont St., Suite A, we serve homeowners, condominium associations, and commercial property owners dealing with rusted steel lintels, cracked brickwork above windows, and deteriorating masonry supports.

A lintel is the structural member that supports masonry above a window, door, or other wall opening. Steel angles, channels, beams, and certain stone or concrete units transfer the weight of surrounding masonry to the supporting wall on either side. When a lintel corrodes, bends, or loses adequate bearing, the surrounding brickwork may crack or move. Water can also enter through damaged joints and deteriorated flashing, exposing the supporting steel to further corrosion.

Northern Illinois weather adds to these problems. Wind-driven rain, snow, and repeated freezing and thawing expose masonry openings to moisture that can worsen existing defects. Arrow Masonry assesses the affected lintel, surrounding masonry, and potential water-entry points before recommending a repair or replacement scope.

Call (847) 776-6400 or request a quote online.

Signs Your Window or Door Lintel May Be Failing

Lintel deterioration does not always appear as a visibly bent steel angle. The first warning may be a crack in the mortar above a window or a row of bricks beginning to move. These symptoms deserve investigation, but no single crack pattern proves that the lintel has failed. Foundation settlement, wall movement, thermal expansion, and moisture damage can produce similar conditions.

Stair-Step Cracks Above Windows and Doors

Stair-step cracking follows horizontal and vertical mortar joints, often extending diagonally from the upper corner of a window or door. This pattern may develop when a lintel deflects, its supporting masonry moves, or stresses redistribute around the opening. An assessment should examine the steel member, its bearing at both ends, and any movement in the surrounding wall before determining the repair.

Horizontal Cracks and Separating Mortar Joints

A horizontal crack immediately above a steel angle can indicate corrosion-related expansion. As steel rusts, the corrosion products occupy more volume than the original metal. This expansion can push against adjacent masonry, opening mortar joints and displacing brick courses.

The condition of the steel, surrounding joints, and wall drainage determines whether surface treatment is sufficient or a more extensive repair is required.

Vertical Cracks Above the Center of an Opening

Vertical cracking near the middle of a masonry opening may be associated with lintel deflection or concentrated stress. However, the direction of a crack alone cannot establish whether the lintel has insufficient capacity. The lintel’s span, loading, section condition, and bearing must be evaluated before making a structural recommendation.

Windows That Stick or Frames That Become Distorted

A deteriorating lintel may allow masonry movement to place unintended pressure on a window or door frame. Possible symptoms include windows that are difficult to open, distorted frames, cracked glass, and damaged perimeter sealant joints. These problems can also result from frame installation defects or building movement unrelated to the lintel.

The opening and surrounding masonry should be examined together.

Bulging Brickwork and Loose Masonry

Outward movement above an opening requires prompt attention. Corroding steel, failed connections, inadequate support, and movement within the wall assembly can contribute to displaced masonry. If bricks are visibly loose, falling, or separating from the wall, keep people away from the affected area and arrange an urgent assessment by a qualified professional.

Why Tuckpointing Alone Cannot Repair a Structurally Failed Lintel

Tuckpointing replaces deteriorated mortar in masonry joints. It does not restore steel that has lost structural capacity or correct a lintel that is moving under load. If corrosion continues behind the brickwork, new mortar can crack as the supporting steel expands or shifts.

A lasting repair must address the actual source of distress. Where corrosion remains superficial and the steel retains adequate capacity, a qualified assessment may identify a suitable repair that does not require full replacement. Where the lintel has substantial section loss, permanent deformation, failed bearing, or inadequate load-carrying capacity, replacement may be necessary.

The adjacent masonry may also require brick repair or mortar joint restoration.

What Causes Steel Lintels to Deteriorate?

Water Entering Through Damaged Masonry

Open mortar joints, cracked brick, failed window sealants, and deteriorated roof or wall flashing can allow water to reach concealed steel. Repeated wetting can cause corrosion, particularly where the original steel lacks sufficient protection.

Missing or Deteriorated Through-Wall Flashing

Some wall assemblies depend on flashing above openings to collect moisture within the masonry and direct it outdoors. When flashing is absent, damaged, or incorrectly terminated, water may remain around the lintel or enter the wall below. Replacing steel without correcting this moisture problem can leave the new installation exposed to the same conditions.

Inadequate Bearing or Structural Support

A lintel requires adequate support at its ends. Insufficient bearing length, damaged supporting masonry, unsuitable member sizing, or changes to the original building loads may affect performance. The required lintel size and bearing arrangement must reflect the wall construction, loading, span, and applicable structural design requirements.

Aging Steel and Previous Repairs

Older buildings may contain lintels installed before modern corrosion-protection practices became common. Painting exposed steel or repairing cracked mortar does not necessarily address corrosion concealed within the masonry. An inspection should establish whether the existing member remains suitable for continued service.

Steel, Stone, and Concrete Lintel Replacement Options

Different buildings require different lintel materials and structural arrangements.

Material

 

 

Structural characteristics

 

 

Protection and durability

 

 

Common applications

 

 

Hot-dip galvanized steel

 

 

Structural angles, channels, and beams selected for the span and loading

 

 

Zinc coating provides corrosion protection; service life depends on exposure and drainage

 

 

Residential and commercial brick masonry

 

 

Stainless steel

 

 

Structural angles or fabricated members specified for required loads

 

 

High resistance to atmospheric corrosion; grade selection depends on exposure

 

 

Moisture-exposed or preservation-sensitive applications

 

 

Reinforced precast concrete

 

 

Manufactured concrete members with embedded reinforcement

 

 

Durability depends on concrete quality, reinforcement protection, and installation

 

 

Concrete block and selected masonry wall systems

 

 

Limestone and sandstone

 

 

Dimensional stone members with material-dependent bending capacity

 

 

Require suitable support, drainage, and compatible repairs

 

 

Historic entrances and architectural openings

 

 

Structural composites

 

 

Engineered fiber-reinforced components for approved applications

 

 

Corrosion-resistant options require project-specific structural design

 

 

Specialized strengthening or rehabilitation projects

 

 

Galvanized Steel Lintel Replacement

Steel angle lintels are common in brick veneer and masonry walls throughout the Chicago suburbs. Where replacement is required, the new member must be selected for the actual loading, opening width, wall configuration, and bearing conditions. Galvanizing can improve corrosion resistance, but the wall still needs appropriate moisture-management details.

Stainless Steel Lintel Replacement

Stainless steel may be suitable where elevated moisture exposure or project requirements justify its selection. The steel grade, member dimensions, structural capacity, and connection details must be appropriate for the application. Its higher material cost should be evaluated against the property’s exposure and project requirements.

Concrete and Historic Stone Lintels

Some commercial and older residential buildings contain reinforced concrete or natural stone lintels. Cracking, reinforcement corrosion, displaced supports, or material deterioration may affect their performance. The repair method should account for the component’s structural role and the condition of the adjoining masonry.

Our 6-Stage Lintel Replacement Process

1. Structural Assessment and Temporary Support Planning

The project begins with an examination of the opening, existing lintel, adjacent brickwork, bearing conditions, and evidence of water intrusion. Where structural design is required, a qualified engineer determines the applicable loads, member sizing, and temporary support requirements. Temporary shoring may involve appropriately designed support beams, jacks, or other engineered systems.

The type and spacing of temporary supports depend on the building rather than a fixed installation rule.

2. Controlled Masonry Removal

Once the required support and site protections are in place, the masonry immediately around the deteriorated lintel can be removed. The extent of removal depends on the lintel configuration, access requirements, and condition of the surrounding wall. Dust-controlled masonry cutting and careful brick removal help protect adjacent sound material.

Where suitable, original bricks may be salvaged for reuse.

3. Bearing Inspection and Preparation

After exposing the existing lintel, the supporting masonry at both ends of the opening is examined. Loose or deteriorated bearing material must be repaired before the replacement member is installed. Bearing length, bearing pressure, and support geometry must meet the approved structural design and applicable code requirements.

4. New Lintel Installation

The new steel, stone, or concrete lintel is installed in accordance with the project specifications. For steel members, this may involve galvanized or stainless steel angles, channels, or other structural profiles. Correct positioning, support, and clearance around the window or door help prevent unintended loading on the frame.

The required clearances depend on the opening and wall design.

5. Flashing and Drainage Restoration

Where the wall assembly requires through-wall flashing, the new installation should provide a continuous drainage path above the lintel. The design may include flashing, sealed end dams, a properly formed drip edge, and weep openings that allow collected water to exit the masonry. These details must suit the actual cavity or wall construction.

Window perimeter sealants and adjoining masonry joints should also be reviewed as part of the moisture-control strategy.

6. Brick Reconstruction, Joint Finishing, and Inspection

After the new lintel and associated water-management components are installed, the surrounding brickwork is rebuilt. Replacement bricks are selected to match the existing wall’s dimensions, color, texture, and physical characteristics as closely as practical. Mortar must be compatible with the masonry. Older or historic walls may require different mortar properties from modern construction.

The work concludes with joint finishing, appropriate curing, site cleanup, and any inspections required by the approved permit.

Historic Stone Lintel Repair and Preservation

Historic masonry buildings in Chicago and its northwest suburbs may contain limestone, sandstone, or other dimensional stone lintels. Unlike ductile steel members, natural stone can fracture when subjected to bending, concentrated loads, settlement, or deteriorating support conditions. A cracked stone lintel does not always need complete replacement.

Where the existing material remains structurally suitable, conservation options may include:
  • Stainless steel pinning designed to stabilize suitable fractures
  • Matching Dutchman stone inserts for localized material loss
  • Compatible mineral-based repairs to damaged surfaces
  • Selective consolidation where the stone and treatment are suitable
  • Concealed structural reinforcement where needed and properly designed
Severely fractured or structurally inadequate stone may require replacement or a separate support system. The objective is to preserve sound original material where practical without compromising the opening’s structural performance. Our stone restoration services provide further information on architectural stone repair.

Through-Wall Flashing, Drainage, and Corrosion Protection

A new lintel should be considered together with the wall’s moisture-management system. Even corrosion-resistant steel can sit beneath masonry that retains water or has poorly detailed flashing. For suitable cavity and veneer wall assemblies, a designed drainage system may include continuous flashing above the structural steel, properly sealed end dams, exterior drip edges, and weep openings.

The Brick Industry Association’s Technical Notes 31B addresses steel lintel design and moisture control, including flashing and weep provisions. Flashing dimensions and termination details should follow the approved project design rather than a universal measurement applied to every building. Maintaining mortar joints, adjacent masonry, roof drainage, and window sealants can also reduce unwanted moisture entry.

Our related masonry waterproofing services address additional moisture-related building envelope concerns.

Lintel Replacement Cost in Palatine, IL

The cost of lintel replacement depends on the size of the opening, the existing wall construction, the extent of corrosion, and the repairs required around the lintel. A single residential window opening generally involves a different scope from a garage header or a multi-story commercial facade.

Single Residential Window Lintel

Smaller openings may require localized brick removal, a replacement steel angle, associated water-management repairs, and masonry reconstruction. Cost depends on the opening dimensions, access, brick condition, and replacement material.

Garage Door and Wide-Span Lintels

Wider openings may require larger steel members, more extensive temporary support, and structural design. The presence of additional floors or masonry loads can affect the scope.

Historic Stone Lintel Restoration

Historic stone work may involve custom fabrication, sourcing matching material, specialist repair methods, and preservation requirements. A repair that retains sound original stone may have a very different cost structure from full replacement.

Commercial and Condominium Lintel Projects

Multi-opening projects may require scaffolding, phased masonry work, pedestrian protection, coordination around occupied areas, and engineered support. An assessment should identify whether repairs can be grouped by elevation or scheduled in stages.

What your estimate should address

A useful lintel replacement proposal identifies the affected openings, the anticipated removal and replacement work, material requirements, support and access needs, associated brick repairs, water-management provisions, and applicable permit or engineering requirements. A site-specific assessment provides a more reliable basis for pricing than a general online cost range.

Village of Palatine Building Permits and Inspections

Structural lintel work may require a building permit, engineering documentation, and municipal inspections depending on the nature of the alteration. The Village of Palatine administers building permits and contractor registration through its Citizen Self-Service (CSS) system. Owners and contractors can use the portal to submit applications, review requirements, and request inspections.

Commercial and multifamily work generally follows the Village’s standard permit review process. Requirements for individual residential projects should be confirmed with Building & Inspection Services. For projects involving structural support, the approved scope may require drawings or calculations prepared by an appropriate design professional.

Any required inspections should be coordinated before the work is concealed by replacement masonry. Village permit resource: https://www.palatine.il.us/191/Building-Permit-Inspections Building & Inspection Services: (847) 359-9042

Lintel Replacement for Residential and Commercial Properties

Residential Homes

Homeowners often first notice lintel problems through mortar cracks, rust staining, or changes around window and door frames. An inspection can help determine whether the defect is confined to the lintel, involves surrounding brickwork, or originates elsewhere in the building.

Condominium and HOA Properties

Condominium buildings may have numerous lintels exposed to similar construction and weather conditions. Associations can benefit from identifying the affected openings, comparing the condition of related masonry, and determining whether repairs should be carried out together or in phases. A clearly defined scope also supports board review and contractor coordination.

Commercial and Multifamily Buildings

Commercial facades may require specialized access equipment, temporary protection for pedestrians, engineering coordination, and repair scheduling around occupied premises. A structural lintel assessment should consider both the affected opening and its relationship to the larger wall assembly.

Request a Lintel Inspection in Palatine, IL

Cracks above windows, rust-stained steel angles, and displaced brickwork can indicate a problem with the masonry support around an opening. Arrow Masonry & Exteriors Inc. provides lintel assessments and replacement services for residential, condominium, and commercial buildings across Palatine, Arlington Heights, Schaumburg, and greater Chicagoland.

Contact our team to discuss the affected openings and arrange an assessment of the masonry and supporting lintels.

Palatine Office

515A S. Vermont St., Suite A
Palatine, IL 60067
Phone: (847) 776-6400

Chicago Office

300 N. State St., Suite 3504
Chicago, IL 60654
Phone: (312) 709-7875

Frequently Asked Questions

Possibly, if corrosion is superficial and the lintel retains adequate structural capacity. Where corrosion has caused substantial section loss, deformation, failed support, or movement in the masonry, cleaning and painting alone may be insufficient. A qualified assessment should determine whether repair or replacement is suitable.

The replacement plan should protect the existing window or door as much as practical. Temporary masonry support, controlled removal, and appropriate clearances help prevent unintended loads from reaching the frame. Some projects may require additional access or temporary removal of related components. The expected scope should be discussed before work begins.

Structural lintel replacement may require a permit because it changes or repairs a member supporting masonry above an opening. Requirements depend on the building and project scope. Check with the Village of Palatine’s Building & Inspection Services Division before starting work.

A smaller residential opening may be completed faster than a wide-span or multi-story commercial installation. Scheduling depends on engineering, permits, access equipment, material availability, the condition of concealed masonry, and weather. The contractor should provide a project-specific schedule after evaluating the opening.

Yes, some lintel replacement projects can proceed in cold weather when appropriate site protection and masonry installation conditions can be maintained. Mortar selection, substrate temperature, curing, enclosure, and temporary heating may affect whether work can proceed safely. Scheduling should follow the materials’ cold-weather requirements and the actual conditions.

Masonry cutting and mortar removal can generate respirable crystalline silica dust. Appropriate work practices may include dust-extraction tools, HEPA-filtered equipment, exposure controls, work-area protection, and cleanup procedures suited to the task. Property owners should confirm the contractor’s site-specific dust-control and occupant-protection plan before work begins.

The crack pattern provides information, but it does not establish the cause by itself. An assessment should examine the steel lintel, bearing masonry, wall movement, corrosion, flashing, and related building conditions. In some cases, structural engineering input or additional investigation may be necessary.

Yes. Where several openings need work, a coordinated project can allow access equipment, masonry repairs, and scheduling to be planned together. Each lintel still requires appropriate assessment. An affected opening should not be assumed to have the same structural condition as another opening solely because both are in the same building.

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