Pennsylvania has one of the strongest concentrations of modular home manufacturers in the northeastern United States. Its factories produce everything from standard ranch homes and Cape Cod designs to custom luxury houses, townhomes and larger multifamily developments.
A modular home is built mainly inside a manufacturing facility as several three-dimensional sections. The modules are transported to the buyer’s land and installed on a permanent foundation.
In Pennsylvania, modular homes are legally different from manufactured homes. Modular houses follow applicable state and local building codes and are intended for permanent foundations. Manufactured homes are built under the separate federal HUD code.
The ten companies below manufacture modular homes or residential modular components in Pennsylvania. This is an editorial shortlist rather than a ranking based on sales volume or customer reviews.
How the manufacturers were selected
The manufacturers were selected because they:
Operate a residential modular production facility in Pennsylvania.
Publish current modular floor plans or completed projects.
Serve homeowners, independent builders, developers or housing organisations.
Explain their factory-production or delivery process.
Had an active official website when this article was researched in July 2026.
Many Pennsylvania manufacturers do not sell a complete house directly to the homeowner. Instead, they manufacture the modules and work with an independent local builder who handles the land, permits, foundation, utility connections and final construction work.
Buyers should therefore compare both the factory and the local builder responsible for completing the project.
10 top modular home manufacturers in Pennsylvania
1. Ritz-Craft
Ritz-Craft operates its northeastern manufacturing division in Mifflinburg, Pennsylvania. The company produces modular single-family homes, manufactured homes, multifamily housing, retirement housing and community developments.
Its residential catalogue includes ranch, Cape Cod and two-story homes. Buyers can choose from several design collections, ranging from relatively standardised plans to extensively customised houses. Published floor plans cover compact homes as well as buildings exceeding 2,500 square feet.
Ritz-Craft sells through a network of authorised builders. The factory manufactures the main house sections, while the local builder normally coordinates the plot, foundation, module installation and remaining site work.
Ritz-Craft is a useful starting point for buyers seeking a conventional permanent family house with a broad selection of established plans.
2. Simplex Homes
Simplex Homes manufactures custom modular buildings at its facility in Scranton. The company serves Pennsylvania and a large part of the northeastern and mid-Atlantic United States.
Its residential range includes ranch, Cape Cod, two-story and modern homes. Simplex also manufactures townhouses, duplexes, triplexes and larger multifamily buildings. The company reports more than 50 years of modular construction experience.
Simplex concentrates on custom construction rather than limiting buyers to completely fixed plans. It can manufacture both straightforward family homes and more architecturally individual projects.
The company supplies modular components to independent builders. The homeowner’s main construction contract is therefore generally with the selected builder rather than directly with Simplex.
3. Signature Building Systems
Signature Building Systems operates an 80,000-square-foot modular production facility in Moosic. It manufactures custom single-family homes as well as apartments, townhouses, student accommodation, senior housing and mixed-use buildings.
The company reports more than 30 years of experience. Its factory is designed for both individual custom houses and repeatable multifamily production, with capacity stated at up to 600 modules per year.
Signature does not restrict buyers to a small catalogue. Its published plans include ranch, Cape Cod and two-story designs, but layouts and specifications can be adapted around a project.
The company works with homeowners, builders and developers. For a private house, the local builder usually manages the foundation, site utilities and finishing work after the modules leave the Moosic factory.
4. Apex Homes
Apex Homes is a wholesale custom modular manufacturer based in Middleburg. It serves an established network of independent builders along much of the East Coast.
The company manufactures detached houses, condominiums and light-commercial buildings. Its residential catalogue includes ranch homes and other familiar northeastern house styles, while custom designs can be developed for projects that do not fit a standard plan.
Apex primarily deals with professional builders rather than selling a fully completed house directly to consumers. Its builder network is responsible for helping the homeowner select or adapt a design and for coordinating the site portion of the construction.
Apex is especially relevant when the buyer already has a modular builder or architect and needs a Pennsylvania factory capable of producing a highly customised project.
5. Excel Homes
Excel Homes manufactures modular housing at its production facility in Liverpool, Pennsylvania. The operation is part of Champion Modular.
Its published range includes ranch, Cape Cod, two-story, duplex and townhome designs. Available plans cover small and large households, with options extending from one-bedroom homes to layouts with five or more bedrooms.
Excel sells through retailers and builders rather than providing all on-site construction directly. The factory builds the modules while the local project team handles foundation preparation, transportation coordination, installation and final connections.
This manufacturer is relevant to buyers seeking an established plan that can be personalised without beginning with a completely bespoke architectural design.
6. Cavco Emlenton, formerly Pennwest Homes
Pennwest Homes now operates as Cavco Emlenton from a production facility in western Pennsylvania, approximately 60 miles north of Pittsburgh.
The factory specialises in modular homes and serves Pennsylvania, nearby mid-Atlantic states, New England and parts of the Midwest. Its residential range includes ranch, Cape Cod and two-story houses. Published series include Limited, Belle Ame, La Bella Casa, Ultra, Magnifique and Le Fantastique.
Available plans include one- to four-bedroom configurations and homes exceeding 2,000 square feet. Narrow-lot and end-entry layouts are also offered in parts of the range.
Cavco Emlenton is particularly relevant to buyers in western Pennsylvania who want a catalogue-based modular home and access to a regional builder network.
7. Pleasant Valley Homes
Pleasant Valley Homes is a wholesale modular home producer based in Pine Grove. It manufactures houses for qualified retailers, builders and developers across a territory extending from Virginia to Maine.
Its catalogue includes ranch, Cape Cod, two-story, cabin, chalet, multifamily, accessory dwelling unit and tiny-home designs. Buyers can filter plans by size, bedroom count and architectural style. The range includes homes below 1,000 square feet as well as designs above 2,500 square feet.
Pleasant Valley also operates a factory model and design centre in Pine Grove where buyers can view completed model homes and compare finishes, kitchens, bathrooms and construction options.
The purchase contract is generally made with an independent builder or retailer, who is responsible for pricing and site-added work.
8. Custom Building Systems
Custom Building Systems manufactures modular homes in Middleburg and has operated since 2005. The company works through independent builders serving different parts of the East Coast.
Its catalogue covers ranch homes, Cape Cod houses, two-story homes, contemporary designs and multifamily buildings. Buyers can begin with a published layout or bring an architectural drawing, photograph or preliminary sketch for adaptation to modular construction.
Projects can range from a basic two-module ranch to larger houses formed from five, six or more modules. The company uses computer-assisted design to prepare customised drawings and material requirements.
Custom Building Systems is worth comparing when the buyer wants more freedom than a standard production catalogue provides but still prefers to work through a local modular builder.
9. Icon Legacy Custom Modular Homes
Icon Legacy manufactures custom modular building components in Selinsgrove. It is a business-to-business supplier serving professional builders and developers rather than selling directly to homeowners.
Its published residential plans include houses with two to five bedrooms across several architectural categories. These plans can act as starting points, but Icon’s main focus is precision-engineered custom modular construction.
The company also supports professional buyers working on multifamily and other larger developments.
Icon Legacy is particularly relevant when a homeowner has already selected an experienced independent builder who can manage the design process, factory order and complete on-site construction.
10. Module
Module is a vertically integrated modular housing company based in Pittsburgh. It combines design and engineering, manufacturing and construction within one organisation. Its manufacturing operation is located in Allegheny County.
Unlike most traditional Pennsylvania modular manufacturers, Module places particular emphasis on contemporary urban housing, all-electric homes, energy performance and small multifamily developments.
Its published work includes detached homes, townhouses and missing-middle projects. Missing-middle housing means smaller apartment, duplex or townhouse developments that provide more homes than a detached house without the scale of a large apartment block.
Module can handle the site work and on-site finishes for Pennsylvania projects through its licensed construction operation. This creates a more integrated route than the traditional model in which the factory and local builder are separate businesses.
Which Pennsylvania manufacturer may fit your project?
For a conventional family house with a large catalogue, begin by comparing Ritz-Craft, Excel Homes, Cavco Emlenton and Pleasant Valley Homes.
These manufacturers publish broad selections of ranch, Cape Cod and two-story designs. Pleasant Valley also covers cabins, accessory dwelling units and multifamily layouts.
For a highly customised detached home, Simplex Homes, Signature Building Systems, Apex Homes, Custom Building Systems and Icon Legacy are strong companies to investigate.
Signature and Simplex also have substantial experience with architect-led and multifamily buildings. Apex, Custom Building Systems and Icon Legacy work primarily through professional builder networks.
For an urban, energy-focused or small multifamily project in western Pennsylvania, Module offers a more integrated design, manufacturing and construction service.
Buyers planning apartments, townhouses, senior housing or student accommodation should look particularly closely at Signature Building Systems, Simplex Homes, Module and Apex Homes, all of which publish capabilities beyond detached single-family houses.
What to check before requesting a quote
Start by determining who will hold the main contract.
Some manufacturers work only with approved independent builders. Others can coordinate design, manufacturing and construction more directly. Confirm who will be responsible for:
Land and zoning checks.
Architectural and engineering work.
Building permits.
Excavation and foundations.
Transport and crane installation.
Electrical, water, sewer and gas connections.
Module connection work.
Garages, porches, decks and driveways.
Final interior and exterior finishing.
Inspections and occupancy approval.
Warranty repairs.
Ask for a complete specification showing which finishes and fixtures are included in the factory order. Website photographs and model homes may contain optional or site-installed features.
Do not compare the factory price of the modules with another builder’s complete installed price. Foundations, transport, crane work, utilities, permits and exterior work can represent a significant part of the completed project.
Site access should also be investigated early. Long, wide modules require suitable roads, turning space, overhead clearance and room for a crane beside the foundation.
Pennsylvania requires modular homes produced for placement in the state to carry the Pennsylvania Insignia of Certification and the insignia of an approved inspection agency. The state adopted the 2021 ICC codes for modular buildings beginning with units entering their first production stage on or after June 1, 2026. Local officials remain responsible for areas including the foundation, site preparation and utility connections.
Conclusion
Pennsylvania offers an unusually broad choice of modular home manufacturers.
Ritz-Craft, Excel, Cavco Emlenton and Pleasant Valley provide extensive catalogues for mainstream family homes. Simplex, Signature, Apex, Custom Building Systems and Icon Legacy provide routes to more individual designs and larger residential projects.
Module adds a newer, vertically integrated option focused on energy-efficient homes and urban housing.
The best manufacturer depends on more than the preferred floor plan. Buyers should compare the local builder, factory specification, delivery territory, site responsibilities and total completed cost.
PrefabFind helps buyers explore modular home manufacturers in Pennsylvania and compare their house types before approaching builders for project-specific proposals.
