Allentown, PA Historic Property Preservation
Careful Restoration of Allentown’s Historic Brick, Stone & Hamilton Street Buildings
Historic Building Restoration Specialists in Allentown, PA
Allentown has been the commercial center of the Lehigh Valley since the 1700s. During the Revolutionary War the Liberty Bell was hidden beneath the floor of Zion’s Reformed Church here, and the city later grew into an industrial and retail hub with silk mills, factories and grand department stores along Hamilton Street. The Old Allentown, Old Fairgrounds and West Park neighborhoods hold blocks of historic brick row homes, churches and commercial buildings. Many older buildings now serve as offices, apartments and shops, and all of them face freeze-thaw winters, road salt, heavy storms and humid summers.
Older buildings need materials and methods that respect how they were built. Mortar must stay softer than historic brick, cleaning must not damage soft brick or stone, and repairs should match the original. Presto Restoration bases every historic scope on the National Park Service’s Preservation Briefs and works with your architect when a project needs review by Allentown’s Historical Architectural Review Board or the Pennsylvania Historical and Museum Commission.
With more than 25 years of experience, our crews repoint brick with matched lime mortars, clean and repair stone and terra cotta, restore historic windows and metalwork and apply breathable treatments that keep older buildings dry without trapping moisture.
OUR HISTORIC PRESERVATION SERVICES IN ALLENTOWN
From Hamilton Street commercial blocks to row homes, churches and former mills, Presto provides preservation services for Allentown’s older buildings using materials suited to how they were built.
On older brick in Allentown, failing mortar is usually the first problem. Freezing water erodes the original lime mortar until the joints open, and later repairs with hard cement mortar often crack the softer brick. We remove failing joints carefully and repoint with lime mortar matched in strength, color and profile.
Limestone, brownstone and terra cotta trim many of Allentown’s older commercial and civic buildings. Water that freezes inside stone breaks off its face, and rusting anchors crack terra cotta. We clean gently, repair spalls with compatible materials, treat corroded anchors and reset or replace loose pieces.
Original wood and steel windows are central to a historic building’s character. We repair and refinish frames, re-glaze with new compound and seal perimeters so original windows stay in service through Lehigh Valley winters.
Cornices, parapets, porches and decorative brickwork collect snow and water and deteriorate first. We stabilize loose pieces, repair broken elements and recreate missing details to match the original.
Cast iron storefronts, iron railings and copper details on Allentown’s historic buildings rust or disappear under layers of paint over time. We clean and restore historic metals, stop corrosion, apply protective finishes and reseal metal-to-masonry joints.
Historic masonry must breathe. Sealing the face of an old wall can trap moisture that freezes and damages it, so we fix the actual leaks first and use breathable repellents only where they help.
Our Historic Preservation Process in Allentown
Before changing a historic Allentown building, we work out what is original, what has changed and what is causing each problem, and plan repairs that protect its history.
Historic Property Survey
We document condition, original materials, past repairs and any historic district designation.
Material Analysis
Brick, stone, terra cotta and mortar are identified and tested so new materials match.
Scope & Specification
Findings become a preservation-based scope that supports any required city or state review.
Preservation-Grade Execution
Experienced crews protect original features and keep the site safe.
Project Closeout & Documentation
You receive photo records and material documentation.
Plan Your Allentown Historic Restoration Project
Crumbling mortar, cracked stone or leaking historic windows? Call us or request a quote, and our team will respond to discuss your Allentown building.
Why Allentown Property Owners Choose Presto for Historic Preservation
Our Local Allentown, PA Support Network
Historic buildings stay healthy with steady care between projects. Presto works with a local support network so Allentown owners can keep older properties maintained.
For routine upkeep and everyday facility support, owners can also contact our sister companies:
Building Restoration Allentown: Localized repairs and exterior preservation for Allentown buildings.
Building Maintenance Allentown: Preventive maintenance for older Allentown properties.
Building Services Allentown: Day-to-day support for Allentown commercial buildings.
Recent Restoration Projects in Pennsylvania
PENNSYLVANIA PORTFOLIO HIGHLIGHTS
View Presto’s Pennsylvania masonry and precast projects.
Allentown Historic Preservation FAQs
What makes historic preservation different from regular restoration?
Regular restoration makes a building sound and watertight. Preservation also protects original materials and appearance through matched mortars, gentle cleaning and repair rather than replacement.
Why does lime mortar matter on older Allentown buildings?
Historic brick was laid in soft lime mortar meant to be weaker than the brick. Hard cement mortar traps water and stresses the brick, which then cracks in freezing weather.
Can an older building be made watertight without losing its character?
Yes. Most leaks come from eroded mortar, failed flashings, cracked copings and worn window seals, all of which can be repaired with compatible materials.
How long does a historic restoration project take?
A row home or small building may take a few weeks, while a large mill or church can take months, with most work done between spring and fall.
Does Presto work in Allentown’s historic districts?
Yes. For properties that need review by Allentown’s Historical Architectural Review Board or the Pennsylvania Historical and Museum Commission, we provide the scope and material information required.
How do you work with architects and preservation reviewers?
We share survey findings, material testing and proposed methods early and document the work with photos throughout.
Does Presto follow National Park Service guidelines?
Yes. The National Park Service Preservation Briefs guide our methods for repointing, masonry cleaning, stone repair and historic windows.
Other Allentown Building Restoration Services
Preserve Your Historic Allentown Building
Every winter that repairs wait costs a historic building more of its original material. Tell us about your Allentown property, and we will help you plan restoration that protects its structure and history.
Call 1-800-785-9927 or Request A Historic Restoration Quote online.