Massachusetts has some of the highest heating costs in the country, and in many older North Shore homes a big chunk of that money is literally leaking out the windows and doors. The good news: some of the fixes are cheap and DIY, and the bigger fix pays you back every winter for decades.
Find the drafts first
On a windy day, hold a lit incense stick or a damp hand near the edges of windows and doors — where the air moves, you have a leak. Common culprits are old single-pane or failed double-pane windows, worn weatherstripping, and gaps around door frames.
Cheap fixes that help now
- Weatherstripping around movable window sashes and door frames.
- Caulk the stationary gaps where the window frame meets the wall.
- Door sweeps on exterior doors to kill the under-the-door draft.
- Insulating film kits for the worst windows — inexpensive and surprisingly effective for a single winter.
When replacement windows are worth it
Band-aids only go so far. If your windows are original single-pane units, have fogged-up (failed) seals, or are painted shut and rotting, replacement is where the real, permanent savings are. Modern Energy Star double- or triple-pane windows stop drafts, cut heat loss, and quiet the house — and in a New England climate the difference on your heating bill is noticeable. They also boost resale value and comfort in every room.
A note for historic homes
Many North Shore homes have historic character worth preserving. Good window contractors offer options sized and styled to match older architecture, so you can gain efficiency without losing the look — which matters in places like Marblehead, Salem, and Newburyport.
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Get a free windows & doors quote →Frequently asked questions
Do new windows really lower heating bills in Massachusetts?
For older single-pane or failed double-pane windows, yes — the difference is noticeable in a New England winter. Modern Energy Star windows with a proper install stop drafts and reduce heat loss, though exact savings depend on how poor the old windows were.
How much do replacement windows cost?
On the North Shore, quality replacement windows typically run $500–$1,200 each installed, depending on size, frame material, and glass package. Whole-home projects are usually priced per window.
What is the cheapest way to stop window drafts?
Weatherstripping, caulk, door sweeps, and shrink-film insulating kits are all inexpensive and help for a season. They are a good stopgap, but replacement is the lasting fix for old, failing windows.