About Castle "The Window People" of Massachusetts

A Massachusetts window and door company that does one thing every day: make homes more comfortable.

Windows and Doors Are All We Do

What Working With Castle Looks Like

We’re Castle “The Window People” of Massachusetts. We replace old, drafty windows with energy-efficient vinyl windows, and we replace worn-out doors with new entry doors, patio sliding doors and storm doors.

Windows and doors are our whole business, and that focus shows in the finished job: openings measured right, units set level and square, and seals that keep winter outside.

Every Castle installation is backed by the Castle Lifetime Guarantee, and we’re fully licensed in Massachusetts: MA HIC #200323.

  1. A free visit. We look at your windows and doors, listen to what’s bothering you, and measure.
  2. Straight options. You’ll see the styles, colors and glass choices that fit your home and budget, with a clear written price.
  3. A careful install. We protect your home, remove the old units, and install and seal the new ones.
  4. A walkthrough. We show you how everything works and leave the place clean.

Built for Massachusetts Winters

Insulated vinyl windows and tight-sealing doors that keep the heat in and the drafts out.

Good Looks That Last

Low-maintenance vinyl that never needs painting, installed so it looks right and works right for years.

Honest advice. Careful installation. A guarantee that lasts.

Ready for a warmer, quieter, better-looking home? Let's start with a free estimate.

Homeowner Reviews

Hear It From Your Neighbors

These are real Google reviews from Massachusetts homeowners who trusted us with their windows and doors. We think they say it better than we can.

Posted on Google Google
Joe Z profile picture
Joe Z
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Met castle window people at a home show, they have a great product, we purchased 2 new storm doors with roll down windows, absolutely love them , installation is top notch, highly recommend
Posted on Google Google
David Popp profile picture
David Popp
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Last year we had a real need to replace our windows, which were 28 years old and really starting to show wear! We knew we wanted to go with vinyl but also wanted to retain our stained woodwork inside our home. We did our research and decided to give Castle Windows. Our Sales rep, Josh, was very professional, easy to deal with, and clearly knew his stuff. We chose windows that had a medium oak finish on the interior. The windows were ready in the timeframe promised and installation was scheduled. The install process was very efficient and we were very pleased with the results. The color of the windows matches our interior woodwork perfectly! We are so pleased, we just ordered our final window (a bay window) and a slider. We highly recommend Castle Windows. Dealing with the regional owner, Franc, and our sales rep Josh was a pleasure. They both treated us with honesty and integrity and were very accommodating to our specific needs!
Posted on Google Google
Kaci Furtado profile picture
Kaci Furtado
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We had a sliding door installed by this company and had a great experience from start to finish. They worked with us to come up with a very reasonable price, which I really appreciated. The installation was done professionally and efficiently, and the quality of the work shows. I absolutely love the sliding door — it looks beautiful and functions perfectly. I would definitely recommend them!
Posted on Google Google
Cherrie Lamphear profile picture
Cherrie Lamphear
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We met Castle Windows at the Topsfield Fair grounds at the business fair. The salesman was very informative, and we made an appointment for someone to come to the house. A pleasant, knowledgeable salesperson sold us the top tier replacement windows, and they were installed. All but one fit properly, but the last window will be installed in a few weeks. Our home is now quieter, manages the heat and AC cold much better with these new windows. The workers were neat, polite, and the installation was completed in one day. When ever I had a question a knowledgeable person answered promptly and even walked me through the process of using the loan process they use. Thank you to the people of Castle Windows.
Posted on Google Google
Dorothy Loreto profile picture
Dorothy Loreto
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
These installers were 10 stars what a great job fast, clean as can be I'm impressed ty ty ty the windows look amazing TY
Posted on Google Google
Jacob Murray profile picture
Jacob Murray
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
They replaced our patio door and small window upstairs. A+ job at a good price, install only took a day, and they were great communicators. I’ll use them again.
Posted on Google Google
Mark Handy profile picture
Mark Handy
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Castle Windows were fantastic. From great price, quality windows, fast service to professional work. Thank you Castle Windows I highly recommend them for anyone looking for windows or doors.
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