Desk by a window with notes and insulation samples in a New England home, for the BCI Group blog

BCI Blog

Insulation & Energy Guides for Massachusetts Homes: Page 4

Practical, honest advice from the BCI Group team in Westborough, MA: fix ice dams and drafts, compare insulation, understand Mass Save® and make your home cheaper to heat.

Articles · page 4 of 11

Energy rater reviewing blower door test results on a tablet outside a house
Energy, Testing & HVAC

Air Changes per Hour (ACH50): What It Means for Your Home

What ACH50 means, how it is calculated from a blower door test, the Massachusetts code limit and typical results for old and new homes.

3 min read

Antique house interior with plaster walls and a patched insulation hole near the baseboard
Massachusetts Home Guides

Old House Insulation: How to Insulate Plaster Walls and Antique Homes

How to insulate an old Massachusetts house with plaster walls: what to do first, dense-pack walls, attics, stone foundations, moisture and historic details.

3 min read

Insulation crew arriving at a Massachusetts multi-family house for a no-cost weatherization project
Mass Save® & Incentives

Income-Eligible Mass Save® Programs: How to Get No-Cost Energy Upgrades

How income-eligible and moderate-income Mass Save® programs work in Massachusetts: who qualifies, what is covered at no cost and how to apply.

4 min read

Heavy condensation on the inside of a window in a Massachusetts home in winter
Home Comfort Problems

Condensation on Windows in Winter: Causes and Real Fixes

Why windows fog and drip inside Massachusetts homes in winter, when it signals a moisture problem and how ventilation and air sealing fix it.

4 min read

Closed-cell spray foam applied to poured concrete basement walls up to the rim joist
Spray Foam

Spray Foam on Basement Walls: Is It the Best Choice?

Why closed-cell spray foam is often the best insulation for basement walls in Massachusetts: moisture control, air sealing, code coverings and alternatives.

4 min read

Homeowner measuring the depth of old attic insulation with a tape measure
Insulation Materials

How Much Attic Insulation Do You Need in Massachusetts?

Recommended attic insulation levels for Massachusetts homes: R-49 to R-60, what that means in inches for cellulose and fiberglass, and how to check yours.

4 min read

Ductless heat pump indoor unit heating a Massachusetts living room in winter
Energy, Testing & HVAC

Do Heat Pumps Work in Massachusetts Winters? Cold-Climate Heat Pumps Explained

How cold-climate heat pumps perform in Massachusetts winters, capacity at low temperatures, backup heat and why insulation comes first.

4 min read

Weathered cedar shingle house near the ocean in coastal Massachusetts on a windy day
Massachusetts Home Guides

Insulating Coastal Homes on the North Shore and South Coast

How wind, salt air and moisture affect insulation in coastal Massachusetts homes, from Lynn and Quincy to New Bedford and Fall River, and what works best.

3 min read

Landlord and insulation contractor reviewing a triple-decker building in Massachusetts
Mass Save® & Incentives

Mass Save® for Landlords and Multi-Family Owners in Massachusetts

How Massachusetts landlords can use Mass Save® to insulate rental and multi-family buildings, cut tenant complaints and lower operating costs.

4 min read

Free estimate · No commitment

Stop overpaying for energy.

Fill out the form or reach us directly — we respond within one business day.

Free, no-obligation estimate
Mass Save® rebates handled end-to-end
Licensed & insured contractors
Engineering-grade energy assessments
Serving MA · NH · RI · CT · ME

10+ Years

Serving New England

HERS Certified

In-house ratings

Mass Save®

Rebates handled

5 States

MA · NH · RI · CT · ME