View Our Services Give Us a Call
hours Office & Showroom Hours:
Monday-Friday: 8am-5pm
Evenings by appointment
Saturday: 8am-1pm
Sunday: Closed
phoneCall Us!
  • Zephyr Thomas Team
  • Showroom Exterior
  • Inside The Showroom
  • Zephyr Lancaster Showroom
  • Staff and Trucks
  • Zephyr Building
Zephyr Thomas Team

About Us

Thomas Home Improvement Company BBB Business Review

Zephyr Thomas Home Improvement Company began as Zephyr Aluminum in 1953, a commercial improvement company. Over time more homeowners were becoming interested in improving the quality and beauty of their home. As a result, Zephyr Thomas was created in 1993 to serve as a residential home improvement company. Our name is well known over Lancaster County and surrounding areas as a reputable and very professional business with the most talented and experienced professionals around!

We are proud to say that we serve our satisfied customers time and time again with new projects on their homes. In the last year we had over 60 percent of our business from our repeat and referral customers. We use only the best and newest products on the market from the top leading manufacturers on the east coast. These products include our Energy Star certified replacement windows and gorgeous Grandview Sunrooms, made by our award winning Seaway Manufacturer. All products are custom made to suit our customers and their homes. Zephyr Thomas is committed to using only the highest quality products and materials that are available. Our number one focus has always been on the quality of products and materials, not the cost. Zephyr Thomas is not interested in offering our customers "cheap" products. We stand behind our products and services and are confident in the quality that will last our customers for years to come.

Zephyr Thomas has an outstanding reputation and is proud to serve in our community. We are members of the Better Business Bureau, The Builders Industry Association, The National Association of Home Builders, and The Pennsylvania Builders association, And don’t forget that we are Energy Star certified as well as NFRC Certified for our efficient products.

Mission Statement

Our mission is to provide exceptional home improvement service to all areas of the home in a safe, reliable, and family-centered manner throughout Lancaster County and beyond.


Our vision is to be the leading home improvement provider in Lancaster County.


  • Collaborating with customers - The key to our success is the ability to talk with our customers. We strive to listen attentively and build relationships to meet your needs.
  • Commitment to service - Our commitment to service is based on our family centered business approach. We are dedicated to conducting our work, while respecting your home.
  • Organizational integrity - We recognize the importance of honesty and promote accountability for our actions.
  • Customer loyalty - We believe in the value of our customers and honor your support.


"At Zephyr Thomas we keep our promise"

Our Lead Supplier – Seaway Manufacturing

Seaway Manufacturing

Zephyr Thomas Home Improvement Company has worked alongside our leading supplier, Seaway Manufacturing, for over 20 years. Seaway Manufacturing is our main supplier of our custom made windows and sunrooms. Seaway windows and sunrooms are made locally in the USA, in Erie, Pennsylvania. Unlike many home improvement companies, Zephyr Thomas has stood fast to using our Seaway products for so many years because of the quality of the materials used, craftmanship of the product, and ability to stand behind their products for a lifetime. Founded in 1959, Seaway Manufacturing drew upon Erie, Pennsylvania's tradition of strong craftmanship and engineering expertise to become a high-quality, recognized manufacturer of quality replacement windows and sunrooms, in a variety of designs and styles. Through over 50 years of growth and change, Seaway remains committed to the highest standards of protection, cutting-edge designs, and unsurpassed service. Seaway is proud to design and manufacture products that minimize maintenance and improve a home's appearance, energy efficiency and investment value.

Connect With Us

Youtube facebook Youtube

Contact Us

Vote for us

What Our Clients Say

"Hi Everyone,
Just wanted to wish you all a Happy New Year and to let you know we have not forgotten you. We show off our room every chance we get. We tell every new person in the community how you helped us get what we wanted done to our home and how you helped us win our fight.

Where we live, in staten island, got hit very hard by Hurricane Sandy. Since we live right by the water a lot of homes were destroyed and boats and docks came crashing into homes. We were very lucky our home stood up to the storm and had very little damage. It is now for sale, we've had enough of the water. We are here (in Lancaster) to stay.

Before we knew if we had a lot or a little damage we said to each other - "We will never find anyone like Zephyr Thomas on staten island to fix our house."
- Sincerely, Arnie & Agnes Pack