This is not a testimonial but a query.  I've heard that indoor storm windows can greatly improve the efficiency of your windows (especially in winter) without having to replace the window.   Has anyone used these?   Pros and Cons?   They look great on the web but I have to wonder if in a larger window (say 30" x 60") if they are rigid enough?  Do they impact the light coming into the room?

I think I have an ideal application for indoor storm windows but would appreciate any first hand experience with them.

Also, I'm wondering if I can build these myself, perhaps making them blend into the trim of the existing windows a little better. Has anyone out there tried to do this?

You can contact me at: michael.kilian@gmail.com

Early in 2023 we attended a meeting at the General Store about heat pumps. We decided to follow through with the help of MassSave and a Harvard energy coach from the Energize Initiative. But first, we needed to do a free energy audit which determined that we needed to add "a lot" of additional insulation in our attic. Rogers Insulation also did quite a bit of air sealing, insulated the door between the attic and the house and put insulation strips around our front door and the door between the garage and the house. We wanted to keep some flooring in the attic for storage and Rogers was very accomodating with making that happen. Most of the cost of the insulation was covered by MassSave. We were very happy with Rogers Insulation and highly recommend them.

P.S. We had nearly 40 years of stuff in our large attic - this project was just the thing we needed to motivate us to get rid of most of it!

It came to my attention when remodeling a bathroom that the insulation in the attic was insufficient, to say the least.  Dolphin Insulation (Littleton MA) came up with a great solution for the house, which includes a section with an attic but also a section with cathedral ceiling.   They clearly care about doing the job right, and are as focused on energy efficiency as I am!

The house was so well sealed that it became clear that the windows were in need of replacement.  Dolphin introduced me to Intus Windows, triple-pane windows manufactured in Europe.  They are beautiful and, of course, extremely energy efficient.

Over the last decade we have replaced every original window, door, and skylight in our 1978 Cape Style home with new Energy Star rated replacements. We had to do the work in phases due to cost, but we have completed the last replacements with the exterior doors this spring. The differenece in air-tightness is very noticiable. In the summer, the cool stays in longer even though we do not have whole house air conditioning.  In the winter, the snow does not instantly melt off the skylights like it did with the old, original skylights.  The added bonus is that the new windows and doors look great!

We recently spray foamed our attic - the process was easy and well worth it!  Previously I could see where we were losing heat on our roof and now I see no losses!  Its great!