We help Massachusetts homeowners insulate, air-seal and upgrade their heating, and we handle the Mass Save paperwork so the rebates do the heavy lifting. Most customers pay a fraction of the real cost. Many pay nothing for air sealing.
These are current Mass Save offers we help you claim, not marketing promises.
Rebates and incentives are provided through the Mass Save program and subject to eligibility and program terms.
Air leaks, missing insulation, and unprotected ductwork can waste heating and cooling before it reaches the rooms where you live. We improve these areas so your home stays more comfortable and uses energy more effectively.
Seal hidden gaps that allow conditioned air to escape and outdoor air to enter. Air sealing helps reduce drafts, uneven temperatures, and unnecessary energy loss.
Typical work includes sealing attic hatches, plumbing and wiring penetrations, rim joists, and other hidden gaps. Through the Mass Save program, air sealing is usually completed at no cost after a qualifying home energy assessment. Most homes are completed in a single visit.
Reduce heat loss through the attic, one of the most common sources of comfort problems in Massachusetts homes. Proper insulation helps maintain steadier indoor temperatures throughout the year.
After air sealing, we bring the attic up to program-recommended insulation levels with blown-in cellulose. Approved insulation may be covered at 75 to 100% through the program. The result: steadier temperatures upstairs and lower heating and cooling costs.
Improve cold floors, exterior rooms, and spaces above basements or crawlspaces by insulating parts of the home that are often overlooked.
We insulate rim joists, basement walls, crawlspaces, and exterior walls with dense-pack insulation. It's often the fix for cold floors and rooms that never feel comfortable. Approved work may qualify for 75 to 100% incentives.
Close leaks in existing ductwork so heated and cooled air reaches the rooms it was intended to serve instead of escaping into attics, basements, or crawlspaces.
We seal joints and connections in accessible ductwork so conditioned air reaches the rooms it was meant for. Less waste, better airflow, more even comfort. Your no-cost assessment identifies what applies to your home.
Protect ducts located in unconditioned spaces from heat loss in winter and heat gain in summer, helping your system deliver air at the right temperature.
Ducts in attics, basements, and crawlspaces are wrapped to program standards, keeping heated air hot and cooled air cold along the way. Often paired with duct sealing for the biggest improvement.
Identify air leaks, insulation gaps, and opportunities to improve your home's comfort and efficiency. We explain what should be addressed and which incentives may be available.
Schedule your assessmentA better-insulated and properly sealed home can often be served by a smaller, more efficient heat pump. Our Heat Pumps Division designs ducted, ductless, and hybrid systems around the way your home performs, not just the equipment being replaced.
Visit Souzet Heat Pumps DivisionPick a time that works. A specialist walks through your home, attic to basement, at no cost.
You receive a clear report: what to fix, what it costs, and exactly what the Mass Save incentives cover.
Our insured crew completes the job, usually in a day or two, and leaves your home clean.
No stock photos here. This is our crew's work in Massachusetts homes.
Rebate forms, program requirements, scheduling: we take care of every Mass Save step so you don't have to.
You get a real diagnosis of your home, not a sales pitch. If something isn't worth doing, we say so.
Based in Holliston, serving MetroWest, Greater Boston and beyond. The crew that quotes your job is the crew that shows up.
We show up on time, protect your home while we work, and leave it cleaner than we found it.
53 five-star reviews on Google, and counting. Don't take our word for it. Read what your neighbors say about working with Souzet.
Read our reviews on GoogleA specialist visits your home, checks insulation, air leaks and heating equipment, and shows exactly which Mass Save rebates you qualify for. No cost, no obligation.