Elk Grove’s online permit system asks the scope question before anyone else does: a full HVAC replacement, a condenser replacement only, or furnace or duct work only. Tule Sacramento Heat Pump replaces and converts ducted heat pumps across Elk Grove, from Laguna and East Franklin to Old Town and the Sheldon area, and licensed and insured contractors carry out each installation. Choosing the permit type correctly starts with knowing what will change inside the house.
Three permit types for three different jobs
The City of Elk Grove issues residential mechanical permits online, with separate sub-types. In the 12 months to October 25, 2026, the City’s permit data shows these counts:
| Permit sub-type | Issued | What it fits |
|---|---|---|
| HVAC replacement | 1,167 (at least 367 naming a heat pump) | Furnace and AC replaced together, or a full heat pump system |
| Furnace or duct work only | 141 | Indoor equipment or ducts, outdoor unit stays |
| Condenser replacement only | 60 | Outdoor unit only, indoor equipment stays |
Mechanical permit descriptions in the same window mentioned a gas-to-electric conversion 226 times. Those counts come from free-text descriptions, so the heat pump figure is a floor. The heat pump permit guide explains how each office handles the Title 24 paperwork.
Houses built after 2000
First or second time around
The Census Bureau’s American Community Survey counts 50.0% of Elk Grove’s homes as built in 2000 or later and only 9.3% before 1980. Single-family detached houses make up 86.1%, and 73.8% are owner-occupied. A house from the early 2000s may be on its original furnace and air conditioner or on its first replacement, and that history is checked at the first visit.
Equipment in the attic or a closet
Where the furnace sits in the attic or a hall closet, the replacement is an air handler with a matched coil in the same spot. An attic install adds condensate handling and a secondary drain pan, and attic work in summer sets the schedule. Gas lines and the flue are capped and sealed when the furnace leaves.
What the gas share means
About 64.7% of Elk Grove households heat with gas and 30.2% with electricity. For the gas majority the job is a gas furnace to heat pump conversion. Where only the AC has failed and the furnace is young, replacing the AC with a heat pump or a dual fuel setup keeps the furnace in service.
When only the outdoor unit fails
A condenser-only permit sounds like the cheapest path, but a heat pump changes what the indoor side has to do:
- The coil must match. A heat pump outdoor unit runs with an indoor coil rated for it, and an existing AC coil may not be.
- The ducts still get tested. The CEC’s own FAQ states that replacing the outdoor unit of a split system by itself triggers duct sealing, verified by an ECC-Rater.
- Controls change. A heat pump paired with an existing furnace needs a thermostat that stages the two, and Title 24 requires a digital setback thermostat when refrigerant components are replaced.
So the permit type follows the indoor scope, not the other way around.
The separate panel permit
Elk Grove issues a separate online electrical permit to replace or upgrade service up to 200 amps; 131 were issued in the same 12 months. A heat pump with electric backup heat, an EV charger or a future heat pump water heater can push a 2000s service toward its limit. The electrical panel guide shows how the load calculation decides between an upgrade and a smaller circuit plan.
Design days: 98°F and 34°F
The CEC’s design data for Elk Grove gives 98°F for cooling at the 1% level and 104°F at 0.1%, with a heating design of 34°F at 0.2%. With winter design temperatures above freezing, the cooling load usually sets the size and the heat pump carries the heating without leaning on strip heat. Damp, near-freezing winter mornings still bring frequent defrost cycles, so the outdoor unit sits where melt water drains away.
That is why tonnage is not copied from the old unit. A room-by-room load calculation, the heat pump sizing guide explains, can land above or below the old nameplate. Title 24 also limits oversizing when airflow is not verified.
What SMUD power does to the running cost
Elk Grove is in SMUD’s electric territory, with gas from PG&E. SMUD’s winter energy charges of $0.1285 a kWh off-peak and $0.1776 at the evening peak mean a heat pump only needs to deliver about 1.41 to 1.95 units of heat for each unit of electricity to undercut a 95% gas furnace. That threshold is derived from the two utilities’ energy charges, with fixed charges excluded.
Rebates
On qualifying equipment installed by a participating contractor in the SMUD Contractor Network, SMUD’s gas-to-electric rebate reaches $3,000 for variable-stage systems and $2,000 for two-stage. Permits and a passing Title 24 verification are required. Rebate-qualified installations are available on request; the SMUD rebate guide covers the terms, and the conversion cost guide shows how they change the math.
Galt and the area south of Elk Grove
South along SR-99, the CEC lists Galt’s cooling design at 95°F and its heating design at 28°F at 0.2%, cooler in summer and colder in winter than Elk Grove. Census figures put 22.2% of Galt’s homes as built before 1980. The CEC’s utility map places Galt in SMUD territory, and Galt’s permit rules are confirmed per address and project.
Steps for an Elk Grove replacement
- Call. The equipment’s age and location, the ZIP, and whether the outdoor unit, the furnace or both need replacing.
- Site visit. Room loads calculated, duct static pressure and condition checked, the electrical service reviewed, and the attic or closet access measured.
- Permit. The mechanical sub-type matched to the scope, plus the electrical permit if the panel changes.
- Install. Equipment set, the line set brazed and leak-tested, the system evacuated and charged, and the gas line capped where the furnace leaves.
- Sign-off. Airflow and charge confirmed, the ECC-Rater test, the City’s final inspection, then the thermostat explained.