Exterior Solutions you’ll love coming home to

Contact Us for a No-Pressure Consultation.

My project includes

My budget for this project is in the range of:

We Can Improve Your Home’s Exterior With:

Provia Windows


Whether you are looking for a new vinyl window or a wood-clad window, or something else entirely, you can trust that we’ll help you find the best choice for you and your home.

Provia Windows


Nothing says “Welcome” like a beautiful front door. We offer the highest quality Provia® entry doors, patio doors, and storm doors with unsurpassed attention to details.

Provia Windows


Your siding is the first protection your home has against what Mother Nature can throw at it. Shouldn’t it be ready to take Her on? We offer many siding choices including vinyl, wood, and fiber cement.

Hi! We’re 12 penny

12 Penny Exteriors, Inc, your Local Window Depot, is an exterior remodeler based in Westford, MA. Specializing in windows, doors, and siding, we listen to your needs and help you find the best products for your project. No pushy sales tactics, ever.

After more than 30 years building, repairing, and improving homes in New England, we know that quality products and a job done right are the bottom line for any home improvement project.  Experience, Knowledge and Integrity go into everything we do.

featured articles

Understanding the Window Sticker
Understanding the Window Sticker

Every new window, door, or skylight sold in the U.S. comes with an NFRC-certification. The sticker that comes on your new product contains a lot of information! We are here to help you understand it all.

Replacement Windows: Process Explained
Replacement Windows: Process Explained

In this video, Paul walks us through what IS and IS NOT changed when you choose a replacement window for your improvement project. There are several ways to replace an existing window; choosing a replacement window product is usually the quickest and most cost effective way to go.

We like to give you choices.
We like to give you choices.

When it comes to remodeling your home, the amount of choices you may face can feel overwhelming. There are many salespeople out there who will be happy to offer you an extremely limited set if options to ‘make it easier’ for you.
We feel that you should have as many options as is reasonable to choose from for your project. We also believe that it is our job to give you knowledgable advice to help you decide what you want for your home.

It took a while to find a contractor with the knowledge and experience to handle the replacement of a custom door in an eccentric house. 12 Penny did it well. Communication was clear. Workers were great. Details were taken care of. It was a pleasure to work with professionals.


The 12 Penny Process

You will know exactly what to expect when you invite 12 Penny Exteriors, Inc. into your home. We pride ourselves on not being pushy, salesy-salespeople and want to respect your valuable time.



Meet with a 12 Penny consultant, discuss your goals and the unique needs of your project.

60-90 minutes, in-home



Review our proposal, ask any questions, make changes if needed.

30-60 minutes, in-home



Agreement is signed, final measurements are taken, and initial investment is collected.


Products are custom ordered for your project.

Wait times vary by product.


Installation is scheduled once products are ready. In most cases it takes less than a week to complete the work in your home.