HVAC & Plumbing Services in Belmont, MA
Cool Bedrooms in an Old House, No Ductwork Required
Your home is supposed to take care of you, not the other way around. When the boiler quits on a January night in Cushing Square, or the top floor never cools in July, one phone call puts a licensed technician on the way from our Newton shop, about 20 minutes from Belmont Center.
Tell us what is going on at your Belmont home. We will call you back with a real time slot, not a two week window.
Years in Massachusetts homes
From our Newton shop
Newton and Franklin
Emergency line
Air Conditioning in Belmont, MA
Belmont has some of the oldest housing in the area, with a median build year around 1938 and nearly three in ten homes in two family buildings. Most were never set up for central air, so we fit the system to the house.

AC Installation & Replacement
Every Belmont home is different. We measure yours first, then help you pick the system that fits it, whether that is central air on your existing ducts or a ductless heat pump for a house that never had them. In a two family we plan each unit on its own equipment so nobody is sharing a thermostat with the neighbors.
- Central air systems
- Ductless mini splits for homes with no ductwork
- High velocity small duct for pre-war homes
- Cold climate heat pumps that heat and cool
- Load calculation on every quote
- Permits pulled and inspection scheduled
AC Repair
When your AC stops working on a hot day, you need help fast. Our Newton shop is a short run up Route 2, so we offer same day visits when we can, and you can reach us any time, day or night.
- System not cooling or blowing warm
- Ice on the refrigerant lines
- Water pooling around the air handler
- Breaker tripping or unit not starting
- Short cycling and weak airflow
- All major brands serviced


AC Maintenance & Tune-Ups
We check your AC each spring, before the first hot week. A yearly visit helps catch small problems early, keeps your warranty in good standing, and gives us a look at the outdoor unit after a long Belmont winter.
- Coil clean and inspection
- Refrigerant charge check
- Capacitor and electrical test
- Condensate drain cleared
- Thermostat calibration
- Written report every visit
Need cooling help in Belmont?
Free estimates on new systems. Same day repair visits when we can.
Heating in Belmont, MA
About seven in ten Belmont homes heat with natural gas and close to one in five still runs on oil. In houses built this long ago that means steam and hot water boilers alongside newer furnaces and heat pumps. We work on all of it.

Heating Installation & Replacement
A new system should fit your home, not just match the old one. We look at your house first, then help you pick the right size so it heats evenly all winter. In an older Belmont house we look at the radiators and piping too, because a new boiler on a tired distribution system still leaves cold rooms.
- Gas furnaces
- Steam and hot water boilers
- Oil to gas conversions
- Cold climate heat pumps
- Radiant and ductless systems
- Old equipment removed, permits handled
Heating & Furnace Repair
A cold house can’t wait. When your heat stops working, we come up from Newton and get it running again. Our team is ready all winter long, even in the middle of the night.
- No heat calls, 24/7
- Ignition and pilot failures
- Thermostat and control faults
- Circulator pump failure
- Boiler pressure loss
- Frozen condensate lines


Heating Maintenance & Tune-Ups
An early fall tune-up, before the first cold night in Belmont, with a full combustion analysis and a carbon monoxide safety check on every gas and oil system we service.
- Combustion analysis
- Carbon monoxide test
- Heat exchanger inspection
- Burner clean and adjust
- Safety control test
- Flue and venting check
No heat in Belmont?
24/7 no heat calls all winter. Free estimates on replacements.
Plumbing in Belmont, MA
Need a plumber in Belmont? The same company that handles your heating handles your water, so one visit can cover the boiler or furnace, the water heater and the pipes between them.

Tanked & Tankless Water Heaters
Navien and Rinnai installation and replacement, including the gas line, venting and condensate work that goes with it. In an older Belmont house the venting and the gas line sizing usually decide whether tankless makes sense, so we look at both before we quote.
- Navien, Rinnai and Rheem
- Gas line sizing and upgrades
- Venting and condensate routing
- Tank to tankless conversions
- Descaling and annual service
- Permits pulled
Kitchen & Bathroom Plumbing
Fixtures, toilets, sinks, dishwasher lines and remodel rough-ins, quoted upfront before the work starts. Belmont is on MWRA water and sewer, and in houses this old we check the supply and drain lines before we add anything new.
- Faucet and fixture installation
- Toilets, showers, tubs and vanities
- Garbage disposals
- Dishwasher and ice maker lines
- Remodel rough-in
- Leak and drain repair

Plumbing problem in Belmont?
Upfront quotes before the work starts. Active leaks go to the emergency line.
Electrical and Indoor Air Quality in Belmont, MA
Panel space and air quality are the two questions that come up right after a heat pump quote in Belmont. Our own licensed electricians handle the panel in-house, so you don’t have to find a second contractor.

Electrical Service & Panel Upgrades
Panel upgrades for heat pump and whole-home AC conversions, plus general electrical service, done by our own licensed electricians. Older Belmont houses often need the service upgraded before heat pumps go in, so we check the panel before you commit to new equipment.
- 100 amp to 200 amp upgrades
- Dedicated HVAC circuits
- EV charger circuits
- Outlets, switches and lighting
- Code corrections
- Permits and inspection handled
Indoor Air Quality
Filtration, ventilation and humidity control planned alongside the equipment instead of added on later. In a pre-war Belmont house that usually means dealing with dry winter air and a damp basement in the same plan.
- Whole-home air filtration
- UV purification
- Humidifiers and dehumidifiers
- Fresh air ventilation
- Duct sealing and repair
- Allergy and mold concerns

Planning a heat pump conversion?
We quote the panel upgrade and the equipment together, on one estimate.
What Belmont Customers Say
EXCELLENT
Based on 559 reviews
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Jared PodolskeSeptember 17, 2026Trustindex verifies that the original source of the review is Google.
Jaykob is a true professional.Posted on Google![]()
Joanne DelaportaSeptember 14, 2026Trustindex verifies that the original source of the review is Google.
To James Jackson was exceptionally proficient knowledgeable and professional Went above and beyond expectationsPosted on Google![]()
Maria YanakakisSeptember 10, 2026Trustindex verifies that the original source of the review is Google.
Dean was GREAT!! Perfect service!!!!Posted on Google![]()
Rachel DanielsSeptember 8, 2026Trustindex verifies that the original source of the review is Google.
Jackson was incredibly knowledgeable, explained everything clearly, helpful & friendly.Posted on Google![]()
tomAugust 31, 2026Trustindex verifies that the original source of the review is Google.
Jake did a great job he fixed my leak and was extremely thorough. He explained everything to me and was extremely friendly throughout. I was recommended your company by my neighbor and I will recommend them as well!Posted on Google![]()
Irene IoffeAugust 28, 2026Trustindex verifies that the original source of the review is Google.
Bryant is exceptional. He deserve a raise, bonus to let him know how his work is appreciated!
Why Belmont homeowners choose Accurate Baker Elman
- Over 30 years, same company, same trade.
- Mitsubishi Elite Diamond Contractor, which unlocks the extended manufacturer warranty.
- Two local shops. Newton is about 20 minutes from Belmont Center.
- HVAC, plumbing and electrical under one license and one schedule.


Rebates and financing
Belmont has its own electric company, so heat pump rebates work differently here. Belmont Light runs its own air source heat pump rebate for its customers, and homes that heat with gas can use Mass Save through National Grid. We check which program fits your home, handle the paperwork, and run 0% promotional financing on installs.
Book service in Belmont, MA
Tell us what is happening at your Belmont home and we will get you on the schedule. If it is an emergency, skip the form and call.
Belmont HVAC and plumbing questions
Our Newton shop is about 20 minutes from Belmont Center, and our Franklin shop backs it up from the south. For no heat, no cooling, or an active leak, call the emergency line at (508) 470-4590. We run that line around the clock, and during the heating season we staff it heavily because December through February is our busiest stretch.
Yes for most replacement and installation work. The Belmont Office of Planning and Building issues building, electrical, plumbing and gas, and sheet metal permits, and a single heating replacement often needs more than one of them. Massachusetts requires a licensed contractor to pull those permits, not the homeowner. We file them through the town portal, schedule the inspection, and see it through to sign-off.
It depends on the fuel, the system type, and how much of the existing ductwork or piping can be reused. A gas furnace swap in a home with sound ductwork sits at the low end. A steam or hot water boiler replacement in an older Belmont house sits higher, and a full heat pump conversion is higher still before rebates. We quote the actual job after seeing the actual basement, and we give you the number in writing before any work starts.
Yes, and in a town where most houses predate the war it is the most common question we get. Ductless mini splits are usually the answer: one outdoor unit feeding indoor heads in the rooms that matter, with no soffits and no lost closet space. High velocity small duct systems are the other option when you want the look of central air and have some chase space to work with. Both cool in summer, and heat pump versions heat in winter too, which lets you keep the boiler as backup.
Yes. Close to one in five Belmont homes still heats with oil, and the older houses run boilers of every vintage. We service, repair and replace gas and oil boilers, and we will tell you plainly when a well-kept boiler has years left versus when it is time to plan the replacement.
Yes, but Belmont works differently from most towns because Belmont Light, not Eversource or National Grid, supplies your electricity. Belmont Light runs its own air source heat pump rebate, based on the size of the system, with extra credit for weatherization and for removing fossil fuel heat. Homes that heat with natural gas can use the Mass Save heat pump program through National Grid instead. Rebate levels change, so we confirm current amounts for your project before you commit.
All of it. Belmont Center, Cushing Square and Waverley Square, Belmont Hill and Payson Park, the neighborhoods along Trapelo Road, Concord Avenue and Pleasant Street, and out past Beaver Brook Reservation to the Watertown, Waltham, Lexington, Arlington and Cambridge lines. ZIP code 02478. You can see the rest of our coverage on our service area page.
All of it, under one company. Heating and cooling, kitchen and bathroom plumbing, tankless water heaters, electrical service and panel upgrades, and indoor air quality. That matters most on bigger jobs: a heat pump conversion in an older Belmont house often needs a panel upgrade, and coordinating that yourself across two contractors is where projects stall.