j.t. Gillis LLC - quality in every job

JT Gillis Construction LLC was founded in 1995 and is a family owned business. In the past 24 years since, we have set out to become Maryland and Virginia’s top construction and home remodeling firm. We specialize in all projects large and small. Our dedication is providing superior quality and detail that the homeowners can be proud to share with their family, friends and neighbors for years to come.

We specialize in new home construction, home remodeling, full home renovations, additions, kitchen remodeling, bathroom remodeling, roofing, siding, finished basements and more. We stand behind our projects and offer the highest level of customer satisfaction. No matter if you have a concept or blueprints in hand, we can help you at any stage of your home renovation or building process.

We also have the experience to design and craft various types of pieces such as cabinets, furniture, stairways, trim work, railing and more. We are detail-oriented and strive to meet or exceed your expectations.

Why Choose Us?

 Here are a few reasons why you should consider JT Gillis Constructions for your next project:

• We are a locally owned and operate out of Thurmont, MD.

• We bring dedication to superior craftsmanship and attention to detail

• We strive to make the construction phase as unobtrusive as possible.

• Our services range from blue prints to custom home building.

• We are fully Licensed, Insured and Bonded

• We have 24 years experience as a reliable business and committed to Customer Satisfaction.


Contact us to get a free quote and discuss your project. We are here to help you from the beginning of your project to the end.

Before & after

Services we provide

• New Home Construction

• Additions & Remodels

• Kitchens & Baths

• Custom Cabinetry & Built-Ins

• Custom Mill-Work/Molding

• Masonry

• Patio, Decks & Porches

• Garages

• Roofing

• Siding

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What our clients are saying

Customer happiness is the greatest reward

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    12412 Catoctin Furnace Rd

    Thurmont, MD  21799

    © J.T. Gillis Construction Company, LLC.  All Rights Reserved

    jt Gillis LLC

     quality in every job



    12412 Catoctin Furnace Rd

    Thurmont, MD  21799

    © J.T. Gillis Construction Company, LLC.  All Rights Reserved