Portland / Berwick
Berwick has 8,175 residents (give or take 19) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=060XX00US2303104720, checked 2026-10-19), about 218 people per square mile.
Berwick is about 40 miles from the Census center point for Portland in a straight line and covers 37.518 square miles of land (Census 2024 Gazetteer internal points and land area, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/, checked 2026-10-19).
The quote form takes a ZIP code; for Berwick that is 03901 (Census 2020 ZCTA to county subdivision and ZCTA to place relationship files, ZIP areas at least 20% inside the town, https://www2.census.gov/geo/docs/maps-data/data/rel2020/zcta520/tab20_zcta520_cousub20_natl.txt and https://www2.census.gov/geo/docs/maps-data/data/rel2020/zcta520/tab20_zcta520_place20_natl.txt, checked 2026-10-19).
Berwick is spread out at 218 people per square mile across 37.518 square miles of land, so a long refrigerant line run between the outdoor unit and the farthest indoor head is the sizing question an installer checks first.
Of the 3,367 occupied homes in Berwick, 2% heat with natural gas, 59% with heating oil, 7% with electricity and 17% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=060XX00US2303104720, checked 2026-10-19).
Heating oil is the largest single fuel in Berwick at 59%, ahead of propane at 17%, so the usual job here is an oil boiler or furnace coming out and a cold-climate heat pump going in, with the oil tank removed.
Berwick has about the York County oil share of 60% and 3 points less electric heat than the county's 10% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US23031, checked 2026-10-19).
Berwick has 3,413 housing units, 16% built before 1940 and 31% before 1980, with 37% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=060XX00US2303104720, checked 2026-10-19).
Berwick has 4 points fewer pre-1940 homes than York County as a whole (20%) and 13 points more homes built after 2000 than the county's 24% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US23031, checked 2026-10-19).
The median Berwick home was built in 1989 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=060XX00US2303104720, checked 2026-10-19) and the median home has 5.8 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=060XX00US2303104720, checked 2026-10-19).
74% of Berwick homes are single-family detached, 4% are in two- to four-unit buildings and 8% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=060XX00US2303104720, checked 2026-10-19).
With 74% detached houses and 4% in small multi-family buildings, a Berwick quote is usually one or two outdoor units with ducted or ductless heads sized room by room. With 13% of Berwick homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=060XX00US2303104720, checked 2026-10-19), the landlord signs the quote in many of them.
Only 13% of Berwick homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=060XX00US2303104720, checked 2026-10-19), so nearly every quote here is the resident talking to the installer directly, and the rebate goes to the person living in the house.
No electric utility is on file for Berwick on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
Efficiency Maine whole-home heat pump rebate, run by Efficiency Maine, is a live program for Maine addresses and lists a standard figure of $3,000 (registry row 7 verified 2026-10-15, https://www.efficiencymaine.com/whole-home-heat-pump-rebates/, checked 2026-10-16); confirm eligibility for the Berwick address before counting it. With 7% of Berwick homes already on electric heat and 78% on gas, oil or propane, the row that applies depends on the name on the electric bill and the fuel coming out.
Median household income in Berwick is $94,771 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=060XX00US2303104720, checked 2026-10-19); many state and utility heat pump rebate programs set higher incentive tiers for income-qualifying households, so the household income on the application, not the town median, decides which level applies.
Heating design temperature: 0F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), York County row, 99% heating, PDF pages 54 to 55 of 141 (Revised 11/11/2020), https://www.energystar.gov/sites/default/files/Design%20Temperature%20Limit%20Reference%20Guide%20(2019%20Ed)%20-%20ENERGY%20STAR%20Single-Family%20New%20Homes_Rev11.pdf, fetched 2026-10-19, 99%.
That 0F figure is the York County cold-day number a Berwick heat pump is sized against, so ask the installer to show the system's heating output at 0F, not at the milder rating-label temperature.
Ask what happens to the oil tank, since 59% of the 3,367 occupied Berwick homes have one and removal is usually a separate line on the quote.
Ask for the heat-loss calculation room by room; the median Berwick home has 5.8 rooms and was built around 1989, and the count of heads and the tonnage follow the rooms and the insulation, not the square footage.
The form on this page is the follow-up for Berwick. The public number is the number the contractor quotes from.
No local contractor is named on this door for Berwick yet. A request from this page goes to the first licensed shop that takes the door.