Klausmair Construction; Trusted by the Community for Over 20 Years

When Klausmair Construction opened in 1994, our focus was mainly on providing high-quality roofing services.

We are now the contractor residents in Lancaster County and surrounding areas. Count on us for unparalleled exterior services, from roofing and siding installation to gutter and spouting repair and installation. We are also the leading installer of decorative exterior architectural millwork, from window and door casings to flower beds and more.

Do you need an extra room in your home to accommodate a new member? Do you want to make your nest extra spacious? Klausmair Construction is also the top choice for home additions.

The Klausmair Construction team can handle any home improvement project, for any application. Here are some of the services we offer:


Klausmair Construction’s team of certified and licensed roofing technicians can work on any roofing type and material. We can handle jobs big and small, from simple repairs to replacement of an entire roofing system.


Enhance the beauty and energy efficiency of your home with quality siding. We install beautiful vinyl, insulated, and fiber cement siding that lasts.

Gutters and Spouting

Quality gutter and spouting help preserve your home’s integrity. Apart from top-quality systems, we offer repair and replacement, as well as the installation of gutter guards.

Trim Work

As promised, no job is too big or small for us. We offer custom trim and millwork that accentuates the unique features and minute details of your home.


Regardless if you need to build an extra room or make an area of your home more spacious, we are here to help. Count on us to handle seamless home additions.

Choose Klausmair Construction, Choose Peace of Mind

Klausmair Construction thanks you for making us the Number 1 Exterior Remodeler in Lancaster for three consecutive years. We continue to provide the same top-quality service. Our values of Communication, Written Proposal and Guarantee, Experience and Personnel, Green and Best Materials guide our operations.

Let us know how we can help you improve your home. Call us at (717) 522-1019 today or fill out our form to request an estimate.

Our Services

Specializing In HOA's

From one roof to hundreds of roofs, to general repair and maintenance, Klausmair Construction is the only call you should make. We'd be happy to attend your next HOA meeting and discuss how our services and quality of work sets us apart.