
Middlesex County, Massachusetts
Insulation & energy services in Waltham, MA
One accountable team for insulation and energy work in Waltham, MA, with clear written estimates and clean job sites.
Middlesex County, Massachusetts
Insulation and energy services in Waltham
From older homes with empty walls to new construction that has to pass inspection, our crews handle insulation work across Waltham and the rest of Middlesex County.
Waltham has many two-family homes and older single-families near Moody Street and the Charles River, plus mid-century neighborhoods and newer apartment and lab buildings.
Waltham is about 22 miles from our Westborough, MA headquarters, and our crews work across Middlesex County every week.
- Help with incentive programs
- Every major insulation type under one roof
- Clean, protected work areas
- Fewer drafts and cold rooms

Services
Our services in Waltham
Choose a service to see how we handle it in Waltham.

All insulation services
Attics, walls and basements with the right material for each.In Waltham
Spray foam
Air seal and insulate roof decks, rim joists and basements.In Waltham
Blown-in cellulose
Fill empty walls and thin attics without demolition.In Waltham
Fiberglass
Cost-effective batts and blown fiberglass for new work.In Waltham
Mineral wool
Sound control and fire resistance between rooms and floors.In Waltham
Fireblocking
Code-compliant draft stopping and fireblocking for builders.In Waltham
Fire retardant paint
Intumescent coatings over exposed spray foam.In Waltham
Energy audits & HERS
Blower door testing, thermal imaging and HERS ratings.In Waltham
Mass Save®
No-cost assessment and incentives for approved insulation.In Waltham
Churches
Mass Save® energy upgrades for houses of worship.In Waltham
Nonprofits
Mass Save® energy upgrades for community organizations.In Waltham
HVAC & heat pumps
Heat pumps planned with insulation, with 1A Home Energy.In WalthamLocal homes
Know your Waltham home
Waltham grew along the Charles River around the Boston Manufacturing Company and the Waltham Watch factory, and neighborhoods such as the South Side, Banks Square, the Highlands and Warrendale reflect that history with many two-families and older single-family homes.
From the inner suburbs to MetroWest, Middlesex County homes range from 19th-century two-families to large newer colonials, each with different weak spots.
For two- and three-family buildings, we plan insulation floor by floor, so each unit gets warmer without long disruptions for the people living there.
Waltham at a glance
- Region
- Greater Boston
- County
- Middlesex County
- Climate zone
- 5A
- From our Westborough office
- About 22 miles
- Efficiency program
- Mass Save®

Where to start
Our first steps for a typical two- or three-family home in Waltham
Seal the top floor
Air sealing the attic floor stops warm air escaping from the upper unit.
Dense-pack the walls
Cellulose fills empty walls without opening up any apartment.
Foam the rim joists
Sealing the band joist ends cold first-floor drafts.
Plan around tenants
We schedule unit by unit so everyone can stay at home.
Climate, code & rebates
Insulation targets and rebates in Waltham

Climate & code
Climate zone 5A targets
Homes in Waltham sit in climate zone 5A, where ENERGY STAR suggests R-49 to R-60 in the attic. Settled or missing insulation is common in older buildings. New construction and major renovations in Massachusetts follow the state energy code, and many towns have adopted the stricter Stretch or Specialized codes.

Incentives
Mass Save® in Massachusetts
Massachusetts homeowners can start with a no-cost Mass Save® Home Energy Assessment, which can lead to incentives for insulation and air sealing. As a Mass Save® partner, BCI Group helps you through the program steps.
Mass Save® in Waltham →Why BCI
The BCI difference in Waltham
Testing in-house
HERS raters and blower door testing when needed.
Help with incentives
We explain the Mass Save® steps that may apply.
Local knowledge
We know Middlesex County housing and climate.
Builder-friendly
Quotes from plans and scheduling around inspections.
Our work
Recent work near Waltham



FAQ
Insulation questions in Waltham, MA
What should I insulate first?
Usually the attic and the basement or crawl space, where the biggest air leaks are and access is easiest.
What rebates can Waltham homeowners use?
Massachusetts homeowners can start with a no-cost Mass Save® Home Energy Assessment, which can lead to incentives for insulation and air sealing. As a Mass Save® partner, BCI Group helps you through the program steps.
Do you work on commercial buildings in Waltham?
Yes. We insulate offices, shops, warehouses, churches and multifamily buildings as well as homes.
How long does a typical job take in Waltham?
Most homes take one to three days, depending on the areas involved.
Are estimates free in Waltham?
Yes. We visit the property and give you a free, itemized written estimate with no obligation. Call (774) 278-8256 or use the form on this page.
Do you serve towns near Waltham?
Yes. We also work in Newton, Wellesley and Cambridge, and across Middlesex County.
Nearby
Other cities we serve near Waltham
Free estimate · No commitment
Stop overpaying for energy.
Fill out the form or reach us directly — we respond within one business day.
10+ Years
Serving New England
HERS Certified
In-house ratings
Mass Save®
Rebates handled
5 States
MA · NH · RI · CT · ME
