If you own a two-family near Oak Square and rent the top floor, a heat pump comes with a calendar. Clement Boston Heat Pumps plans heat pump installation in Allston-Brighton, Boston around lease dates, separate meters and the season when a rented home has to stay warm.
Four in five households in the 02134 and 02135 ZIP codes rent their home, against about two in three across Boston. That makes the owner’s decision here as much about timing and who pays the bill as about equipment.
When can a rented floor go without heat?
Not from September 15 to June 15. Boston’s housing code has an owner who pays for heat keep 68°F from 7 a.m. to 11 p.m. and at least 64°F overnight. The summer window decides most rental schedules.
Fitting the work between leases
A ducted conversion on one floor takes about a week on site. If your lease turns over at the start of September, a late-summer vacancy gives room for duct runs through closets and ceilings without working around furniture and residents.
When the floor stays occupied
The old boiler or furnace stays connected until the heat pump is commissioned, so the home is never without heat. Ducts go into the attic and closets first, then registers, then the cutover. Our installation process guide walks through each day.
Owner-occupant, landlord or condo board
Who signs off depends on how the building is owned: one owner living downstairs, one landlord for every floor, or separate condo owners on each level.
- Owner downstairs, rental upstairs: each floor usually has its own boiler and meter, so each gets its own system. Converting one floor now and the other later is a sound plan.
- All-rental two- or three-family: one estimate can phase floors over two summers, with the electrical panel upgrade done once for the building.
- One condo in a converted house: the master deed and the association decide where your outdoor unit and line set can go. Our condo guide covers that conversation.
Boston’s Short-Form Permit page is plain about the condo case: an owner of one floor in a building of three or more homes has to hire a contractor for the work.
How the houses here take ducts
Where an older Allston-Brighton floor heats with hot-water or steam radiators and cools with window units, the ducts are new. The plan is about where an air handler fits on each level.
The top floor
A floor under an unfinished attic is the easy case: an attic air handler on a platform feeds short ceiling runs. Where the only access is a closet scuttle, we check whether the cabinet fits through before choosing it.
The first and middle floors
The first floor takes a basement unit with floor registers. A middle floor of a three-decker has neither attic nor basement, so it takes a closet air handler or a small-duct system; see our three-decker guide and new ductwork.
Outdoor units on tight lots
Where the side yard between two houses off Washington Street or Cambridge Street is a few feet wide, the spot matters. Boston holds residential lot lines to 50 dBA at night, so we favor the rear yard, a wall bracket or the roof over a rear porch, and read the sound at the line before we finish.
Aberdeen: design review comes before equipment
The Aberdeen Architectural Conservation District, designated in 2002, covers the winding streets of Queen Anne, Shingle and Colonial Revival houses near the Chestnut Hill Reservoir. Exterior work visible from a public way goes to its commission.
The commission meets on the second Thursday of each month and asks owners not to start work or buy materials until approval. On an Aberdeen address we photograph the outdoor spot from the street on the first visit. A rear-yard unit that can’t be seen from the street usually keeps the job off the agenda; a corner lot may not.
Allston-Brighton by the numbers
These figures shape the estimate more than any brand choice does.
| What | Allston-Brighton (02134 and 02135) |
|---|---|
| Households that rent | About 80%, against 64% citywide |
| Homes built before 1940 | 49% in Allston, 39% in Brighton |
| Homes in two- to four-unit buildings | About 27% |
| Heating fuel | Gas 57%, electricity 26%, oil 9% |
| Boston permits naming a heat pump for heating, Nov 2021 to Oct 2026 | 72, about one in twenty of the city’s, from a tenth of its homes |
| Permit office | Boston Inspectional Services Department |
| Energy code | Specialized stretch code since January 1, 2024 |
The permit count says ducted conversions are still uncommon here, which matters when a lender, board or buyer asks how the system was planned. We put the load calculation, duct layout and commissioning numbers in writing for that reason.
Rebates, meters and the winter rate on a rental
Mass Save’s rebates run through Eversource on the electric side, and a gas-heated floor qualifies through your gas company’s Mass Save program when the old system comes out. The rebate guide lists every condition.
If a floor still burns oil
About one Allston-Brighton household in eleven still heats with oil. Where one floor runs on a basement tank, switching it off oil is where the rebate and the running-cost case are strongest.
We arrange the Boston Fire Department permit for the oil tank removal once the heat pump carries the home, so the tank comes out in the same visit rather than sitting empty through another winter.
Who pays to run it
A heat pump moves the heating cost onto the unit’s electric meter. If the household upstairs already paid its own gas heat, nothing changes about who pays. If heat was included in the rent, decide how the lease handles the new electric bill before the install.
The winter heat pump rate
Eversource’s seasonal rate lowers winter delivery charges for any household account that heats with a heat pump, so the account holder on that floor gets it. Our electric rate guide explains enrollment, and the cost guide sets out our ranges.
Next door in Brookline, Newton and Watertown
Brookline, on the far side of Cleveland Circle, runs its own permit office and a fossil-fuel-free rule for new buildings and major renovations. Newton shares that approach. Watertown, across the Charles from western Brighton, still allows a gas backup with a boiler-to-heat-pump conversion.


