Arts + Entertainment
Live Performances
Museums + Art Displays
Pop-Ups
Signage
Studios + Sound Stages
TV + Film Production
Theaters
Theme Parks + Playplaces
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Education
Colleges + Universities
K-12 Schools
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Energy
Solar Energy
Transmission Infrastructure
Wind Energy
Oil + Gas
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Government
Municipal
State
Federal
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Healthcare
Senior Care
Hospitals
Outpatient Facilities
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Industrial
Heavy Industrial
Warehouse + Distribution Centers
Industrial Ports + Terminals
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Ports + Coastal
Berths, Piers + Wharves
Bulkheads
Esplanades
Ferry Landings, Ship Terminals
Floating Structures
Ports + Terminals
Marinas + Breakwaters
Transfer Stations
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Public Infrastructure
Bikeways + Trails
Garage + Parking Facilities
Park + Recreational Spaces
Streetscapes
Utility Infrastructure
Water + Wastewater
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Real Estate Development
Commercial
Community Facilities
Mixed-Use
Multifamily Residential
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Transportation
Airports
Bridges
Ports + Terminals
Rail Transportation
Roads + Highways
Ropeway + Linear Infrastructure
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Floating Harbor Wetland
Multimodal Processing Plant
416 + 420 Kent Dynamic Highrise
Wittpenn Bridge
One Times Square
LaGuardia Airport Terminal B
NYC Ferry
Orlando Airport LED Displays
A leading full-service engineering firm renowned for our trusted, high quality, and innovative approach to solving complex challenges.
Structural Modifications

Structural Additions, Alterations, Renovations + Repairs

Structural Engineering for Existing Buildings
Need structural support for an addition, alteration, renovation, repair, or building conversion? We help evaluate existing conditions, design practical structural modifications, and support projects from feasibility through construction.
Headshot of Dave McLaren, PE, Vice President and Structural Engineering Regional Practice Leader at McLaren, a Division of KCI
David
McLaren, PE

VP | Structural Engineering Regional Practice Leader

The most successful structural additions are engineered with structural expertise, code compliance, and occupancy needs in mind.

With extensive experience in structural alterations, KCI, formerly McLaren Engineering Group, applies creative adaptive solutions and advanced technology to support efficient and constructible space changes.

The most successful structural additions, alterations, renovations, and repairs are engineered with existing conditions, code compliance, occupancy needs, and long-term performance in mind.

From vertical additions and tenant fit-outs to adaptive reuse, historic preservation, structural repairs, and complex renovations, KCI, formerly McLaren Engineering Group, evaluates existing buildings and designs practical structural modifications that support new uses, improve constructability, and protect the integrity of the structure. Our team applies creative engineering solutions and advanced technology to help transform existing spaces safely and efficiently.

Specialty Structural Alteration + Repair Services:

Structural Alterations, Repairs + Restoration

Evaluating existing structural systems and designing repairs for deterioration, damage, distress, new openings, load changes, and building modifications.

Vertical Expansions + Additions

Designing structural upgrades for rooftop additions, new floors, building expansions, and increased loading requirements.

Responsiveness you can count on

Why Choose Us
To Engineer Your Project?

Existing Building Expertise

Our engineers understand the complexity of working with existing structures, unknown conditions, aging materials, previous modifications, and active facilities.

Practical Structural Solutions

We design repairs, reinforcements, additions, and alterations with constructability, cost, schedule, code compliance, and occupancy needs in mind.

Multidisciplinary Support

Structural renovation projects often connect with facade, civil, geotechnical, forensic, survey, construction, and adaptive reuse needs. We bring those capabilities together.

From Assessment Through Construction

Our team supports projects from existing condition review and design through permitting, construction-phase coordination, and field modifications.

Featured
Structural Additions, Alterations, Renovations + Repairs
Experience

From warehouse conversions and healthcare renovations to historic facilities, recreation spaces, hotels, and commercial properties, we help clients modify, repair, expand, and reuse existing structures. Our structural engineering experience shows how thoughtful evaluation, practical design, and construction-phase support can turn complex existing conditions into safe, functional spaces for what comes next.

Inmar Corporate Headquarters - Adaptive Reuse

Inmar Corporate Headquarters Structural Alterations

Specialty structural alterations modernized historic warehouses through roof strengthening, floor system redesign, and complex atrium construction.

Vital Climbing Gym Development

Structural Renovations Enabling Industrial Warehouse-to-Gym Conversion

Structural alterations enabled superstructure expansion, foundation upgrades, and integration of three historic warehouse buildings.

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Let's talk about your project

Contact Us

We’re excited to share that McLaren Engineering Group is now part of KCI Technologies Inc., a 100% employee-owned firm offering engineering and consulting across all markets, and construction for communications and environmental projects.

Our commitment to excellence continues with the added strength of KCI’s full range of engineering and consulting services.

Visit KCI’s website to learn more.