If you own a historic home in Maine or New England, you know the pressure to replace your old windows with modern vinyl. But the best way to preserve your home's value and character is restoration. We've researched the top
Why Historic Window Restoration Matters More Than Ever
The window replacement industry has spent decades convincing homeowners that old windows are drafty and inefficient. The truth is, a properly restored historic window can perform as well as a new one, and it will last another 100 years. Maine is home to a passionate community of preservationists and craftsmen who specialize in repairing, reglazing, and weatherstripping original wood windows. These experts understand that every sash tells a story, and they have the skills to keep those stories intact.
How We Chose the Best Window Restorers
We evaluated each business on four criteria: depth of restoration services (from basic tune-ups to full rebuilds), geographic coverage across Maine and New England, years of experience and reputation in the preservation community, and availability of specialized offerings like custom storms or weatherstripping. We also prioritized businesses that are actively listed in the Maine Preservation Professionals Directory, a trusted resource for historic homeowners.
Here's a quick look at the five window restoration specialists we recommend, ranked by overall service breadth and regional expertise.
| Provider | Best For |
|---|---|
| Bagala Window Works | Full-service restoration with proprietary weatherstripping |
| GMC Sash Repair LLC | Custom storm windows and tiered restoration options |
| Dylan Runnion Restoration Carpentry LLC | Combined window and general historic carpentry |
| 12 Lights Window Restoration | Maine + Canada Historical Window Restoration | Restore & Preserve Today | Bespoke restoration in eastern Maine and Canada |
| Vintage Glass Works | Specialized vintage glass repair and restoration |
The Top 5 Historic Window Restoration Specialists in Maine
#1 Bagala Window Works
A screenshot of the Bagala Window Works website.
Bagala Window Works has been restoring windows and doors since 1988, making them the most experienced team on this list. Based in Westbrook, Maine, they serve clients across New England and are known for their original metal interlocking weatherstrip, which they've manufactured since 2019. They also invented The Steam Stripper, a faster, safer, and greener way to remove paint from old windows. Their portfolio includes landmark projects like the Henry Wadsworth Longfellow House and the Portland Observatory. If you want a restoration backed by decades of craftsmanship and innovation, Bagala is your first call.
#2 GMC Sash Repair LLC
A screenshot of the GMC Sash Repair LLC website.
GMC Sash Repair LLC, found at woodwindowsmaine.com, is a solo operation run by Garrett, a dedicated craftsman who has spent ten years perfecting his process. He offers a tiered service model that lets you choose exactly what your windows need: stabilization (triage only), a tune-up (restoring function without full paint), or a full restoration he calls 'the fifty year fix.' He also builds custom wood-framed screens and storm windows to match your home's architecture. Garrett's hands-on, consultative approach means you work directly with him from assessment to completion.
#3 Dylan Runnion Restoration Carpentry LLC
Dylan Runnion Restoration Carpentry LLC is listed in the Maine Preservation Professionals Directory and brings a broad skill set to historic window work. Beyond window restoration, Dylan handles general carpentry, metal work, and finish carpentry and cabinetry. This makes him an excellent choice if your project involves more than just windows, such as repairing trim or structural elements. Based in Maine, he serves clients who need a versatile preservation carpenter who understands how windows fit into the larger historic fabric of a building.
#4 12 Lights Window Restoration | Maine + Canada Historical Window Restoration | Restore & Preserve Today
A screenshot of the 12 Lights Window Restoration website.
Twelve Lights Window Restoration, owned by Tyler LiBrizzi, specializes in restoring historic windows in Washington County, Maine, and across Canada. Tyler offers bespoke, high-quality services to homeowners who want to maintain the integrity and value of their historic properties. He is listed in the Maine Preservation Professionals Directory, which adds credibility and visibility within the preservation community. If you live in eastern Maine or are looking for a specialist who also serves Canadian clients, Tyler's focused expertise is a perfect match.
#5 Vintage Glass Works
A screenshot of the Vintage Glass Works website.
Vintage Glass Works is another trusted name found in the Maine Preservation Professionals Directory. While their online presence is more limited, their inclusion in this curated directory signals that they meet the standards of Maine's preservation community. They focus on the delicate work of restoring vintage glass and window assemblies, making them a good option for homeowners who need specialized glass repair or replacement. For projects that require a light touch with historic panes, Vintage Glass Works is worth a call.
How to Choose the Right Window Restorer for Your Home
Start by assessing the condition of your windows. If they are painted shut or have broken ropes, a tune-up from GMC Sash Repair might be all you need. If you need a full restoration with custom storms, Bagala Window Works has the most experience. For projects that also involve carpentry work on your home's exterior, Dylan Runnion Restoration Carpentry LLC is a strong fit. If you live in eastern Maine or Canada, Tyler LiBrizzi at Twelve Lights Window Restoration is your local expert. And for delicate glass repairs, Vintage Glass Works offers specialized care. Always ask for references and photos of past projects before hiring.
Automate Your Window Maintenance Schedule
Once your windows are restored, set a recurring reminder every spring to inspect glazing and weatherstripping. Use a simple CRM or even a calendar app to log each window's condition and track when storms need to be installed or removed. This small habit will extend the life of your restoration and save you money on future repairs.
Preserve Your Home's Heritage with the Right Craftsman
Maine's historic windows are worth saving, and the craftsmen on this list have the skills to do it right. Whether you need a full restoration, a simple tune-up, or custom storm windows, there is a specialist ready to help. Don't let replacement salesmen convince you that old windows are beyond repair. With the right restorer, your windows can last another century and keep your home's character intact.