About Winstal

Serving the South Shore since 1954, learn about Winstal and our history of high quality home improvements in the region.

Winstal Office - Braintree, MA 2010

Winstal Office – Braintree, MA 2010

Ever since William and Dorothea Mortimer started Winstal out of their home in Braintree, the company has provided the South Shore with high quality home improvements and a personal touch. “We treat every house we work on as if it were our own”, says Bill. When customers speak about Winstal, they speak of the “little extras” that separate us from other home improvement contractors, from oiling a squeaky door, replacing a broken doorbell light, or just being courteous houseguests. Bill remembers, “I was having work done on my home once, and the contractors didn’t clean up after themselves. They left me with a huge mess. I vowed that would never happen with my business.” In addition to the Mortimer family home, Winstal had offices in Weymouth Landing, Rockland, Braintree and Brockton throughout the years.



Owned and operated by the Mortimers since 1954, Winstal is a family business through and through. As Bill and Dorothea brought up their children (Billy, Craig, Regina and Nancy), they all played a part in the longevity of the company. Bill and Dorothea ran the business, Billy and Craig were the home improvement contractors, and Regina and Nancy provided administrative work. Later on, Billy’s son (another Bill) took on marketing for the business, and daughter Michelle also joined as an installer. Today, Billy and Regina work together to complete residential home improvement projects all over the East Coast of Massachusetts, from Peabody to Provincetown.


Winstal Office - Rockland, MA 1983

Winstal Office – Rockland, MA 1983

But no matter how big or how small the job is, Winstal takes great pride in our work as a home improvement contractor. Because a good job doesn’t just reflect well on us, it reflects well on you – the customer. After all, this is your house, and you are the one who has to look at it and live in it every day. Most of our business is referral-based and through word-of-mouth. This is a testament to our work ethic, as well as our great customers, many of who have been with us since the start. We are fully licensed and insured (Mass Reg# 101270 | HIC# 104095), and have an A+ rating with the Better Business Bureau. We honor all manufacturer warranties, and offer a one year guarantee on installation. So you can rest assured that your home is in good hands with Winstal Company.


“When you choose Winstal, you choose peace of mind.”



Need a home improvement contractor?

Request a Free Estimate - Winstal.com