Modular and Prefab Home Manufacturers
Modular manufacturers build a full-size house in sections on a factory line, ship it to your land, and crane it onto a foundation, then finish the seams and the roof on site. This is the page for a primary residence or a large second home rather than a backyard studio: two and three bedroom plans, 1,000 square feet and up, inspected to the same state code as anything site-built and usually months faster. Backyard ADU specialists have their own category. The manufacturers here hold approvals in the states they ship to, publish true section dimensions, and raise crane and road access before you sign. We rank on plan range, states served, and how much of the site work they own.
- 1
America's largest family-owned modular home manufacturer, building factory-made ranch, cape, two-story and chalet homes from 1,000 to 4,000+ square feet across a dual Northeast and Midwest operation since 1954.
- 2
Award-winning Pennsylvania modular manufacturer with 30+ years and 180+ employees, building custom homes from 2,001 to 4,000+ square feet across the East Coast from North Carolina to Maine.
- 3
Manufacturer of factory-built modular homes across North America with 40 facilities, offering IRC-code construction and extensive customization since 1953.
- 4
Pennsylvania-based B2B modular manufacturer offering fully custom, precision-engineered systems-built homes from 908 to 5,480 square feet in cape, ranch, two-story and multifamily configurations for independent builders.
- 5
Pennsylvania wholesale modular manufacturer established in 1990, having built over 12,000 homes across 17 states and 5 countries, offering custom ranch, cape, two-story, chalet and urban living styles up to 4,000+ square feet.
- 6
North Carolina manufacturer of distinctive circular modular homes in nine models ranging from 746 to 2,070 square feet, with 77 total floor plan variations, shipped globally since 1968.
- 7
Seattle-based designer and manufacturer of customizable prefab homes since 2008, with over 400 completed projects across the Western US and Canada, built in a Ferndale factory and installed within 2 to 4 months of delivery.
- 8
SIPS-constructed modular homes built in Massachusetts and shipped across New England and the Mid-Atlantic, offering colonial, contemporary, ranch, and multi-family floor plans from 1,066 to 4,800 square feet.
- 9
Pennsylvania-based modular home manufacturer in continuous operation since 1973, building 400 to 500 homes annually using name-brand components, serving the Northeast with quality affordable housing across multiple styles and sizes.
- 10
Seattle-based luxury prefab home designer and builder since 2008, offering 25+ designs from 750 to 4,000 square feet with modern architecture, sustainable construction, and offices in Seattle, Boston, and San Diego.
- 11
Pennsylvania-based modular manufacturer founded in 1971, operating multiple climate-controlled plants, serving 13 states and Washington DC with customizable ranch, two-story, cape, and multi-family homes.
- 12
Pennsylvania-based modular home builder with 45 years of experience and two display centers, serving the Mid-Atlantic with IRC-code homes ranging 900 to 4,000+ square feet.
- 13
New York-based manufacturer of customizable full-size modular colonials, craftsman ranches, and vacation homes, serving eight Northeast states with floor plans ranging from 2,000 to 4,600 square feet.
- 14
Custom modular home builder serving eight Southeastern states with designs ranging 1,560 to 2,270 square feet, featuring coastal-rated construction up to 180 mph wind ratings.
- 15
Pennsylvania-based builder established 1972, serving 33+ Pennsylvania counties and Southern Tier New York, offering customizable ranch, cape, two-story, and chalet modular homes with emphasis on quality and affordability.
Frequently asked questions
What size homes can I expect from these modular manufacturers?
You can find a wide range of sizes depending on the builder. Some manufacturers specialize in smaller footprints starting around 400 to 900 square feet, while others offer large primary residences exceeding 4,000 or even 5,480 square feet.
Can I find modern or unique architectural styles among these builders?
Yes. You can choose from traditional ranch, cape, and colonial styles, or opt for more distinctive designs like circular homes or modern luxury architecture.
Do these manufacturers serve my specific geographic area?
Service areas vary by company. Some manufacturers focus on specific regions like the Northeast, Midwest, or Mid-Atlantic, while others serve the Western US, Canada, or even ship homes globally.
Are these homes fully customizable to my needs?
Many of these manufacturers offer extensive customization for floor plans and design. Some specialize in fully custom, precision-engineered systems, while others provide a variety of pre-designed models that you can adapt.
What is the difference between these modular homes and a standard site-built house?
These homes are built in sections at a factory and then shipped to your land to be craned onto a foundation. Once the sections are placed, crews finish the seams and the roof on-site.