The machine matters less than the hands that install it. A middling heat pump installed well outperforms a premium unit installed badly, every winter, for fifteen years. And in South Jersey the installer question carries extra weight, because the incentive system pays on process: the state's money is computed from an energy model that only exists if the contractor sequences the project correctly. This guide is the vetting playbook, question by question, tell by tell, tuned to this carve's houses and this state's programs.
The First Question Decides Most of It
Ask every bidder, on the first phone call: does this project start with a qualifying energy audit?
New Jersey's Whole Home Energy Efficiency Program pays up to $7,500 computed from modeled energy savings, $2,000 at 5 percent plus $200 per additional point, and the model is built from the audit. A contractor who runs the audit first lets the findings shape the scope: air sealing and insulation join the project, the model climbs, the check climbs with it, and the tightened house often takes a smaller, cheaper machine. A contractor who treats the audit as paperwork to backfill after installation just cost you the difference between the floor and the middle of that program, which the rebates guide works in dollars.
So the first question is really a competence test wearing a scheduling question's clothes. A confident "yes, audit first, here is how we sequence it" is the single strongest signal you will get in this market.
The Three Program Tells
South Jersey quotes leak information about their authors. Three tells to read:
The federal tell. The 25C and 25D tax credits expired December 31, 2025. A 2026 bidder quoting federal money is working from stale notes, and a contractor stale on money is usually stale on equipment and code too.
The ACE tell. The carve splits between PSE&G and Atlantic City Electric, and the arithmetic differs. PSE&G addresses can stack up to $3,500 of utility money with higher tiers after a utility audit; ACE addresses have no separate utility rebate, and the statewide program is the whole number, as worked in the ACE guide. A bidder who writes a utility rebate line into an ACE quote is inventing money, and you should wonder what else is invented.
The refrigerant tell. New 2026 equipment runs R-454B. A quote on older refrigerant is a quote for old stock.
The Sizing Test
Ask how the bidder will size the system. The only right answer involves a room-by-room load calculation against South Jersey's actual design night, which sits in the low teens, not a rule of thumb, not "same tons as the furnace."
Local knowledge sharpens the test. In the rowhouse blocks of Cooper Grant, Fairview, and Parkside, party walls carry real weight in the math; a bidder who sizes a rowhouse like a detached Marlton colonial will oversize it by a room. In the Cherry Hill and Voorhees splits, the honest bidder talks about duct sealing before tonnage. And on the shore blocks, a bidder who does not raise salt-air coil protection unprompted has not worked the islands; the specification is covered in the equipment guide.
Oversizing is the classic local failure. Too much machine short-cycles, wears early, and in a humid Pennsauken July cools the air while leaving the moisture, delivering that special clammy cold only bad sizing produces.
What a Signable Quote Contains
- The load calculation, with the design temperature it used, in writing.
- The equipment schedule with published low-temperature capacity, not just tonnage.
- Electrical work as its own line, especially in prewar stock where panels run small.
- The state payment as a line item with its modeled savings percentage.
- The utility layer: PSE&G tier in writing, or a plain statement that the address is ACE and the statewide number is the stack.
- Permits, by name and township.
A single-number quote with a handshake fails this list six ways.
The Township Question
The carve crosses dozens of permitting jurisdictions, from Camden city through Haddonfield, Collingswood, and Merchantville boroughs out to the shore municipalities, and each runs its own construction office with its own tempo. Ask the bidder which townships they pulled permits in last quarter. A contractor fluent in your township's process saves weeks; one who proposes skipping permits altogether is transferring risk to you, since unpermitted work surfaces at sale time and voids more than one warranty.
References, Asked Correctly
Everyone says "check references," and everyone checks them wrong, calling the two happy customers the contractor volunteered. Ask differently: request a reference from a project in your housing pattern, a rowhouse if you own a rowhouse, a shore install if you are on the island blocks, at least two winters old. Two winters is the test that matters, because sizing mistakes and sloppy line-set work hide through the first mild season and announce themselves in the second January.
When you reach that homeowner, ask three things: did the modeled state payment arrive as quoted, did the system carry the coldest week without the strips running constantly, and did the contractor return calls after the check cleared. Those three answers cover money, competence, and character.
Warranty, Read Before Signing
Equipment warranties in this market run ten to twelve years on the compressor, but only when the unit is registered and installed by qualifying hands, and labor warranties are the contractor's own promise, typically one to two years and worth exactly as much as the company's likelihood of existing in year two. Ask how long the bidder has operated under the current name; a warranty from a company that renames itself every few years is stationery. Get both warranties in the contract, not the conversation.
Price Is the Wrong Sort Key
Get three bids, but do not sort by price alone. The cheapest bid in this market is frequently the one that skipped the audit, sized by thumb, ignored the panel, and priced against a rebate that does not exist at your address. The expensive mistake is not the extra thousand on the good bid; it is the decade of high bills from the bad one. If the house heats with oil, run the operating math yourself before the sales calls, so you can smell a wrong number when one is quoted, and check the bands in the installation cost guide against every bid.
Get Your Free Camden Quote
Start your free quote: two minutes, free, no obligation. You will be matched with contractors serving Camden and the South Jersey carve who run the audit first, quote the real programs for your utility in writing, size to the design night and the party wall, and pull the permit in your township by name.