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Mass Save Energy Services Across Massachusetts

Colt Home Services is a Mass Save Home Performance Contractor based in Waltham. Here's where we provide no-cost home energy assessments, insulation and air sealing.

Where do you provide Mass Save services?

We provide Mass Save home energy assessments, insulation and air sealing for homeowners in Waltham and communities across Greater Boston. Local guides:

Not sure whether we cover your town? Call (617) 446-3690, Monday through Friday from 8am to 8pm.

What Mass Save services do you offer?

Looking for a plumber instead?

Our licensed plumbing team covers fifteen towns around Waltham. See the plumbing service area.

Need a plumber too?

A failing water heater or boiler is often both a plumbing job and a Mass Save conversation. See water heater installation and boiler repair.

Common questions

Do I qualify for a Mass Save home energy assessment?

If you're a customer of a participating Massachusetts utility and live in a home with one to four units, you likely do. Renters can have an assessment too, with landlord approval for any upgrades.

Is your energy service area the same as your plumbing service area?

Not exactly. Call us at (617) 446-3690 and we'll tell you whether we can schedule an energy assessment at your address. Our plumbing towns are listed on our service area page.

Your Home Comfort Starts Here.

A real person answers, Monday–Friday, 8am–8pm.

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  3. 3Location
  4. 4Time
  5. 5Contact

What can we help you with?

No-cost home energy assessmentMass Save insulation and weatherization