Cold downstairs. Hot up top.
In a triple-decker or multifamily building, comfort can vary from floor to floor. Tell us which rooms are affected so the assessment can focus on the assemblies around them—not assume every unit needs the same work.
Greater Boston, Massachusetts · Insulation & air sealing
Old homes.
New comfort.
Greater Boston.
Keep the character. Lose the drafts. Insulation and air sealing can help Greater Boston’s older homes, triple-deckers and multifamily buildings feel more comfortable with less wasted heating and cooling. Start with a plan for your attic, walls or open-framing renovation.
5.0 on Google · 114 reviews ↗
Greater Boston communitiesHomes & commercial spacesReal local project photosAssessment-led recommendations
Older buildings. Everyday comfort.
Comfort that works
from floor to floor.
An older building can have drafty lower floors and an overheated top floor at the same time. We look at where your living space meets the attic, exterior walls and unheated areas to identify practical insulation and air-sealing improvements.
Look above the top-floor ceiling.
Attic hatches, penetrations and uneven insulation can leave paths for heat to escape. We review accessible conditions and ventilation before recommending how to improve the boundary above your home.
Make the most of exposed framing.
Renovating an older house or apartment? Before walls close up, align the insulation plan with the assembly, required R-value and next stage of construction. Existing finishes and access shape what is practical elsewhere.
A closer look at our work in Belmont
Open framing. Thoughtful insulation.
See the same Belmont garage before and after spray foam installation. Protected surfaces and open cavities give way to insulated wall and ceiling framing, while the project is still under construction.
Before: prepared for installation.
Exposed wall and ceiling cavities, with adjacent surfaces protected before spray foam application.
After: insulation in place.
Spray foam installed in the wall and ceiling cavities, with the framing still visible before finishes.
Greater Boston customer perspectives
Real experiences.
In their own words.
Hannah shares her experience with a three-family property in Allston. Hank shares his feedback as a Newton customer.
★★★★★
“Great service! We used them for a three family in Allston. On time and reasonable quote. Very thorough and cleaned well after insulation. Thank you Marco!”
★★★★★
“Very professional. Quality work and clean.”
Company-wide Google rating and review count, September 28, 2026.
Insulation services in Greater Boston
Insulate the assembly.
Respect the building.
Different parts of an older building call for different solutions. We assess the available access and assembly before recommending materials for the attic, exterior envelope or renovation area.
Attic insulation & air sealing
Start at the boundary above the upper floor. We review existing insulation, accessible air-leak paths and ventilation to plan attic improvements without treating insulation as a substitute for ventilation.
Spray foam insulation
For suitable exposed walls or roof assemblies, we assess whether open-cell or closed-cell foam fits the design. Assembly details, moisture considerations and required protective finishes belong in that decision.
Blown-in & fiberglass insulation
Not every space calls for spray foam. Blown-in or fiberglass may suit accessible attics and framed areas; the choice depends on existing conditions, the assembly and the required insulation level.
Insulation removal
Older insulation may need to come out before an upgrade can move forward. We assess its condition and the planned work, then define any removal and replacement in the project scope.
Commercial, churches & nonprofits
Planning improvements to a Greater Boston business, church or nonprofit facility? Start with the occupied areas, building use and access needs so the insulation scope fits the property. Mass Save incentives may be available for qualifying commercial, church and nonprofit projects. Eligibility and project approval must be confirmed; no incentive is guaranteed.
Boston and neighboring communities
Better insulation.
Across Greater Boston.
An Allston three-family, a Cambridge home or a Belmont renovation starts with a different set of questions. Tell us the town, building type and area of concern so we can discuss an assessment suited to your property.
Tell us your town- Arlington
- Belmont
- Boston
- Brookline
- Cambridge
- Everett
- Malden
- Medford
- Newton
- Revere
- Somerville
- Waltham
- Watertown
Allston is a Boston neighborhood. For multifamily properties, tell us which floors and shared spaces are part of the planned work.
Explore our Greater Boston city guides:
Arlington ↗Belmont ↗Boston ↗Brookline ↗Cambridge ↗Everett ↗Malden ↗Medford ↗Newton ↗Revere ↗Somerville ↗Waltham ↗Watertown ↗
Plan around the building you have
From first conversation
to a defined scope.
Describe the building and the concern.
Tell us the town, number of units and whether the issue is in a top-floor room, attic, exterior wall or renovation area.
Coordinate access for the assessment.
Discuss which areas can be reached, whether units are occupied and who can provide access. We review the conditions that affect the proposed work.
Review a defined insulation scope.
Your estimate identifies the recommended installation type and R-value. For renovations or shared buildings, discuss access and coordination before scheduling the work.
Preserve the character. Improve the comfort.
Questions from building owners
Before work begins.
Older houses and multi-unit properties raise different questions. Here is where to start.
Can you assess a triple-decker or three-family building?
Yes. Tell us which units, attic areas or exterior assemblies you want assessed and who can authorize access. We define the insulation scope around the building’s conditions rather than assuming every floor needs identical work.
Will insulation work require opening finished walls?
Not every assessment leads to wall work. Access and the proposed assembly determine what is feasible; accessible attics and exposed renovation areas offer different options from finished walls. We discuss the approach before you decide.
How should I plan work in an occupied multifamily property?
Identify the owner or property manager, the areas involved and any access restrictions. Discuss occupant coordination and any product-specific re-entry requirements before installation; those details depend on the selected work.
Is spray foam always the right choice for an older house?
No. Existing assemblies, moisture conditions, ventilation and access affect the choice. Spray foam, blown-in or fiberglass can serve different purposes, and the assessment helps define the appropriate approach.
Which Greater Boston communities do you cover?
The service-area section lists our Greater Boston communities, including Boston, Belmont, Cambridge, Somerville, Newton and Watertown. Share your town and whether the project is a house, multifamily building or commercial property.
A better plan for an older building.
Keep the character. Change the comfort.
From a drafty top-floor room to walls opened for renovation, tell us what needs attention. Let’s plan insulation and air sealing around your Greater Boston building—not a one-size-fits-all package.