If your house still has its radiators, the question isn’t which heat pump to buy but where the ducts can run without wrecking the plaster. For heat pump installation in Jamaica Plain, Boston, Clement Boston Heat Pumps answers that one first: attics, basements and closets, then equipment.
Almost 58% of homes in the 02130 ZIP were built before 1940, the Victorians and triple-deckers that climb the hills from Jamaica Pond to Forest Hills.
Where the ducts go in a plastered Jamaica Plain house
We work from the top and bottom of the house toward the middle, because the attic and basement give routes that don’t touch finished rooms.
The attic feeds the top floor
An attic air handler sits on a platform above the insulation and drops short sealed branches to ceiling registers in each room upstairs. It’s the easiest floor to serve and the one that gains the most heat in July.
Jamaica Plain stands out here: of the 42 heat pump permits in Boston’s open data whose descriptions mention an attic, 13 are in 02130.
The basement feeds the first floor
A second air handler goes where the boiler stood, with a trunk under the joists and floor registers above. The radiators stay in service until the heat pumps carry the house, then come out.
The middle floor
Without its own attic or basement, the middle floor needs a vertical path. We look for closets that stack, a back stair wall or a chase beside the chimney. Where none fits, small-duct tubing threads through floor cavities; our ductwork page compares both, and our guide to heat pumps in old houses traces typical chases.
Which kind of house you have changes the plan
Jamaica Plain mixes three housing forms on the same streets, and each one sets who decides and how many systems you need.
| House | Share of 02130 homes | Usual plan |
|---|---|---|
| Single-family, detached or attached | 15.7% | One or two systems, attic and basement |
| Two-family | 13.6% | One system per unit, each on its own panel |
| Three- and four-unit buildings | 33.5% | One system per floor, owner by owner |
Victorians on Sumner Hill and around the pond
Where a large Victorian off Centre Street has tall ceilings and a full attic, two zones, attic and basement, usually cover it. See whole-home heat pumps.
Triple-deckers in Hyde Square and Stony Brook
Where a triple-decker has its floors owned separately, each floor gets its own sizing, because each loses heat differently. Boston’s permit records show the pattern: 44 of the 215 heat pump permits filed in 02130 over the five years to October 2026 were for buildings recorded as one-to-three-family. Our triple-decker guide covers stacking three systems.
A condo in a converted house: who has to agree
Fewer than half of Jamaica Plain homes are owner-occupied, about 44.5%. In a house divided into condos, shared space sits in the middle of the job.
What the association usually controls
Attics, roofs, porch roofs and yards are common area in most master deeds. The platform above your ceiling, the line set route and the outdoor spot need a vote before we file.
What Boston requires of you
Boston’s short-form permit rules say a condo owner in a building of three or more units must hire a contractor rather than pull the permit alone. We handle the filing; our condo replacement guide covers the documents a board tends to want.
Placing the outdoor unit on a sloping lot
On the hills around the pond and Moss Hill, the rear yard often sits a story below the street or behind a retaining wall. That changes the line set route more than the unit’s size.
Rear yards, porch roofs and brackets
A rear yard keeps the unit out of the side passage and away from the neighbor’s bedroom windows. Where the yard drops off, a heavy wall bracket or a frame on a flat porch roof keeps the line set short. Stand heights and snow clearance are in our snow stand guide.
Checking the night limit before we commit
After dark, Boston’s limit is 50 dBA measured at your property boundary. We set each candidate spot’s distance to the boundary against the unit’s sound rating, pick the quieter one, and measure there before leaving.
Radiators, oil and the case for switching
About 60% of Jamaica Plain homes heat with gas, 25% with electricity and 9% with oil. The fuel you leave decides how fast the switch pays.
Leaving a gas boiler
Gas still undercuts a heat pump on running cost, so the trigger here is usually a worn-out boiler, a wish for central cooling, or an attic already being finished. The boiler conversion page and our heat pump vs boiler guide set out the trade.
Leaving oil
Delivered heat from oil costs well above what a heat pump on Eversource’s winter rate delivers. A basement tank comes out once the heat pump carries the house, under a Boston Fire Department permit; see oil to heat pump.
Electric service
If your house still has a 100-amp panel, we run a load calculation at the first visit. Should it fall short, our typical range for a service upgrade runs $3,000 to $6,500.
Permits, noise and rebates for a Jamaica Plain job
Paperwork here runs through three bodies: the city’s Inspectional Services Department for permits, Eversource for power and Mass Save for rebates.
| What | The Jamaica Plain figure |
|---|---|
| Heat pump permits in 02130, Nov 2021 to Oct 2026 | 215, the most of any Boston ZIP |
| Same ZIP by year | 24 in 2022, 62 in 2025 |
| Night noise limit at the lot line | 50 dBA |
| Boston’s energy code tier | Specialized, effective January 1, 2024 |
| Landmarks district review | None in the neighborhood |
| Electric utility | Eversource |
To qualify for Mass Save’s whole-home rebate, the boiler or furnace you’re leaving must be removed or disconnected, the equipment must be cold-climate listed, and the installer must be in the program’s network. Our rebate guide has the details.
From the first visit to the first cold night
The first visit maps the house from the attic hatch to the basement: load by room, routes floor by floor, the panel, and the outdoor spot measured against each lot line.
- Written estimate: each piece of equipment and its rated output at 5°F, the duct routes and any plaster patching, electrical work, permits, the rebate path, and one price.
- Association sign-off, where the attic or yard is shared, before anything is filed.
- Install, usually five to nine working days for a house, fewer for one condo floor.
- Commissioning: lines held under nitrogen pressure, evacuated past 500 microns and charged by weight for their length; then airflow and static are read and the backup lockout temperature is written down.
Roslindale to the south shares Jamaica Plain’s hills and two-families; Brookline across the Jamaicaway runs its own fossil-fuel-free rule.