News & Resources

Open Sash Exhibits at Waterbury LEAP Energy Fair

Posted April 25th, 2017 by Chris Pratt
Chris Pratt demonstrating to LEAP energy fair attendees the Open Sash window retrofit system.

Chris Pratt demonstrating to LEAP energy fair attendees the Open Sash window retrofit system.


Chris Pratt and Troy Borland demonstrating Open Sash window system to attendees of LEAP Energy Fair.

Chris Pratt explains the Open Sash system to attendees of the LEAP Energy Fair in Waterbury,Vermont.

Alumni Hall at Vermont College of Fine Arts

Posted December 27th, 2014 by Chris Pratt

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Vermont College of Fine of Arts project completed

Posted December 27th, 2014 by Chris Pratt

Open sash has just finished adding glass to 10 enormous 1/2 round windows at Alumni Hall on the VCFA Campus. The entire project to three months to completed.


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The height of the upper and lower sash was 12 feet the width of each sash was 64 inches.

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New Product: Stormwindow screen combination

Posted July 7th, 2014 by Chris Pratt

Screen Storm combo

We’re now offering a new product: wooden-frame storm windows with interchangeable glass and screen panels. Instead of installing cumbersome aluminum screens every spring, just swap out our simple custom screen inserts. If you’ve been thinking about new storms or replacement screens, this a great cost-effective upgrade!



Just back from Boston’s Savin Hill!

Posted May 22nd, 2014 by Chris Pratt

Spent a week in close quarters with the crew, surviving solely on bar-room Chinese food – all for the sake of completing seven third-floor window retrofits on a lovely 1870s Queen Anne home in the Savin Hill neighborhood of Dorchester, MA.  Curved top windows presented a fun challenge.  The clients were delighted to have the modern factory-made square storms removed to reveal the original elegant design of these classic windows.  Good time all around, and a successful restoration story!

Open Sash is featured in VT weekly, Seven Days

Posted December 15th, 2011 by Chris Pratt

Amy Lilly has written a very good article on Open Sash and window retrofits. She did a really good job navigating a complex subject and  including the perspectives of the homeowner, Caroline Ablels, and the historic preservationist.

She did not interview the folks who manufacture replacement windows – they are the ones I am really competing against.

Seven Days has a huge distribution in Vermont and is known for its quality journalism nationally.

The Young People Want Action on Climate Change!

Posted December 10th, 2011 by Chris Pratt

This just in from Durban South Africa where the nations of the world are gathered to talk about climate change. No action was expected to take place and no new actions has taken place.

The big news from the conference is being made from the youth delegation that become very impatient and demanding of its elders in power who have failed in the last 20 years of negotiations.

Hear this powerful speech from a student at the College of the Atlantic.

Open Sash restores windows damaged by Irene.

Posted December 8th, 2011 by Chris Pratt

Moretown Realty Office is in the center of Moretown and was at the center of flood damage from Irene.  Open Sash worked to weatherize and add glass to all 24 of the mix and match windows there.

We were able to add glass to old windows that don’t have weights and parting beads, and repaired some badly rotted windows.  We were able to do all the windows in two weeks at an affordable price.

Irene’s high water mark at Moretown Realty

Windows damaged by Irene

Unidentified Hardware at 20 Vine Street

Posted December 6th, 2011 by Chris Pratt

The variety of styles, mechanisms and alterations found in old windows continues to surprise me.  Usually I can identify what they are, but this one has me stumped.

These are inset in the jambs and used to hold the upper and lower sash in place.  Bwhat is it called. when did they make them, and how did they work?  The house it came from was built in 1907.

Front and back of sash locks? If you know, email me.

What is this called?

Co2 Emissions Impacts Climate and Oceans!

Posted November 22nd, 2011 by Chris Pratt

Despite a “general consensus” among climate scientists that Anthropogenic Global Warming (AGW) is occurring, the public and politicians continue to engage in a most ill informed debate over the evidence, existence, and theory of AGW.

The Yale 360 website offers many informative articles on this topic. A recent post shows that Co2 has an even more indisputable impact on the acidification of the oceans of the world that absorb a lot of the C02 emissions. The acidification in turn has huge impacts on coral reefs and the plants and animals of the ocean.