HVAC service in Waltham, MA
Heating and cooling repair, replacement and maintenance for homes and businesses in Waltham, from South Side to Bleachery. You get the price up front, and we show up on time.
How Waltham homes are heated
The main heating fuel in Waltham's 25,498 occupied homes, and the age of its housing.
- 53%heat with natural gas
- 19%heat with oil
- 24%heat with electricity
- 28%of homes were built before 1940
53 percent of homes heat with natural gas, through a furnace or a boiler. A tune-up every fall keeps either one running safely. See furnace maintenance and boiler maintenance.
About one home in four here was built before 1940. Older houses often heat with radiators and have no ducts for central air, which is where ductless mini splits come in.
24 percent of homes heat with electricity, either with a heat pump or with electric baseboard. Baseboard heat is simple but costly to run, and a heat pump makes the same heat with much less electricity.
Utilities and rebates in Waltham
Electricity in Waltham comes from Eversource, and natural gas from National Grid. Both are Mass Save sponsors, so homes in Waltham can apply for Mass Save heat pump and efficiency rebates.
Amounts and rules change, so check the current offers at masssave.com before you buy.
Source: Massachusetts Department of Public Utilities service-provider data, via MassGIS, October 2025.
All over Waltham
We work in every part of Waltham, including these villages and neighborhoods.
- South Side
- Warrendale
- The Highlands
- Piety Corner
- Lakeview
- Cedarwood
- Bleachery
What we work on in Waltham
Repair, replacement and yearly maintenance for each of these systems.
- FurnacesRepairs, replacements and tune-ups before the cold sets in.
- BoilersRepairs and yearly maintenance for hot-water heat.
- Water heatersMaintenance and repairs for steady hot water.
- Heat pumpsOne system that heats in winter and cools in summer. We maintain, repair and replace them.
- ThermostatsInstallation, repair and replacement, including smart thermostats like Nest and Ecobee.
- Air conditionersTune-ups and repairs before the summer heat.
- Mini splitsCleaning, maintenance and repairs for ductless systems.
HVAC questions from Waltham
Do you work in every part of Waltham?
Yes. We work all over Waltham, including South Side, Warrendale, The Highlands, Piety Corner, Lakeview, Cedarwood and Bleachery.
Who supplies electricity and natural gas in Waltham?
Electricity comes from Eversource. Natural gas comes from National Grid.
Can I get a heat pump rebate in Waltham?
Yes, as Eversource customers, homes in Waltham can apply for Mass Save heat pump rebates. Amounts and rules change, so check masssave.com before you buy.
Do you work for businesses in Waltham?
Yes. Offices, shops and other workplaces get the same repair, replacement and maintenance work we do for homes. See commercial HVAC.
How do I book a visit?
Book online, ask us to call you back, or call us. You get the price before any work starts.
Nearby towns we serve
See every town on our service area page.
Need heating or cooling help in Waltham?
Tell us what is going on. You get the price up front, and we show up on time.