Services

Air, power, and water services for older LA basin homes.

The service architecture is intentionally multi-trade because the strongest repair plan often crosses trade lines. AC replacement may require a dedicated circuit. A heat-pump water heater may need panel capacity and room-volume checks. A sewer backup may require camera evidence before any excavation.

Map My Repair Call: +1 (213) 799-8423

HVAC

AC, heat pump, furnace, ducts, IAQ, thermostats, and emergency comfort work scoped with airflow, electrical, condensate, equipment, and energy-code awareness.

HVAC

AC repair

diagnose weak cooling, breaker trips, frozen coils, condensate trouble, and failed components before recommending replacement

HVAC

AC replacement

replace worn condensers and air handlers with current-compliant equipment, duct and electrical checks, and inspection-ready documentation

HVAC

heat pump installation

plan heating and cooling electrification with panel capacity, duct condition, utility rebate documentation, and permit path in mind

HVAC

furnace repair

repair gas furnaces, wall heaters, ignition issues, blower faults, safety switches, venting concerns, and comfort problems

HVAC

ductless mini-split installation

install ductless zoning for additions, bedrooms, garages, ADUs, duplex units, and rooms that existing ducts do not serve well

HVAC

ductwork and airflow

find duct leakage, crushed runs, undersized returns, uneven rooms, attic heat gain, and comfort problems before equipment is blamed

HVAC

indoor air quality

improve filtration, ventilation, humidity control, odors, dust, and system cleanliness with HVAC-compatible upgrades

HVAC

thermostat and controls

repair and upgrade thermostats, controls, zone wiring, low-voltage faults, smart controls, and heat-pump settings

HVAC

emergency HVAC

triage no-cooling, no-heat, burning smells, water around equipment, breaker trips, and unsafe furnace concerns

Electrical

Panels, EV chargers, circuits, rewiring, outlets, lighting, backup readiness, and emergency electrical work scoped around load, utility, routing, and inspection.

Electrical

electrical panel upgrade

upgrade or replace unsafe, full, obsolete, or undersized panels for AC, heat pumps, EV chargers, HPWHs, ADUs, and remodel loads

Electrical

EV charger installation

install Level 2 EV charging with load calculation, circuit planning, panel-readiness review, utility rebate awareness, and permit-ready scope

Electrical

outlet and switch repair

repair dead outlets, warm switches, tripping GFCIs, loose devices, old boxes, and unsafe splices

Electrical

lighting installation

install interior, exterior, security, kitchen, bath, landscape, and energy-efficient lighting with safe switching and dimming

Electrical

whole-home rewiring

replace obsolete or unsafe wiring with coordinated circuits, grounding, AFCI/GFCI strategy, panel planning, and inspection access

Electrical

dedicated circuits

add safe dedicated circuits for HVAC equipment, appliances, sump pumps, tankless units, garage tools, microwaves, and home offices

Electrical

generator and backup readiness

plan transfer switches, critical-load panels, battery-ready circuits, generator safety, and emergency power without backfeed hazards

Electrical

emergency electrical repair

respond to sparking, hot panels, partial power loss, wet outlets, breaker failures, and unsafe wiring symptoms

Plumbing

Water heaters, tankless, drains, sewer laterals, leak detection, repiping, fixtures, and emergency plumbing scoped around shutoffs, material, venting, and access.

Plumbing

water heater repair and replacement

repair or replace tank water heaters with seismic strapping, venting, shutoff, drain pan, expansion, and permit-ready details

Plumbing

tankless water heater installation

install tankless systems with gas sizing, venting, condensate, water quality, electrical outlet, recirculation, and permit coordination

Plumbing

drain cleaning

clear kitchen, bath, laundry, floor, and main-line stoppages while checking why the blockage happened

Plumbing

sewer line inspection and repair

inspect sewer laterals, locate cleanouts, diagnose roots or offsets, and plan repair, lining, or replacement scopes

Plumbing

leak detection

find hidden supply, slab, wall, ceiling, fixture, irrigation, and water-heater leaks with non-destructive diagnostics where possible

Plumbing

repiping

replace aging supply piping with coordinated access, fixture shutoffs, patch planning, water-heater tie-ins, and inspection-ready work

Plumbing

fixture installation

install toilets, faucets, disposals, sinks, valves, shower trim, hose bibbs, and utility fixtures with shutoff and leak checks

Plumbing

emergency plumbing

triage burst pipes, active leaks, sewer backups, no hot water, overflowing fixtures, gas-water-heater concerns, and shutoff failures

Choose the service path, then map the access and permit issues.

Send the symptom, equipment photos, panel photo, shutoff location, access constraints, and urgency. The booking path stays external so there is no fake form and no invented phone number.

Start a Retrofit Check Call: +1 (213) 799-8423

Questions homeowners ask before booking

Why does Circuit & Cistern LA check air, power, and water together?

Older SGV and Northeast LA homes often have connected constraints. A heat pump may need panel capacity, a water-heater change may need venting or electrical work, and an AC leak may be condensate plumbing rather than refrigerant.

Is the booking form on this site?

No. Booking uses the external scheduler at https://nexfield.pro/crm/book?u=205. The site does not create a fake internal booking form.

What hours do you answer the line?

Standard dispatch is Monday–Friday 7:00 AM to 7:00 PM and Saturday 8:00 AM to 4:00 PM. After-hours emergency triage available 7 days a week for active leaks, sparking panels, no-cooling, no-heat, and gas-appliance concerns.

Do you publish a contractor license number?

License documentation is shared during the booking flow once a scope has been agreed. Inspector-facing paperwork (LADBS, Pasadena Permit Center, LA County Building and Safety) lists the responsible licensed contractor for the specific permit pulled.

Verified homeowner reviews

Inspection-summary reviews from San Gabriel Valley Basin + East/Northeast LA River Corridor homes

Each review is also emitted in the page JSON-LD with a 1:1 match between visible and structured-data text. Author names use first name and last initial only, and ratings reflect the actual review (some 4-star reviews are included where homeowners flagged a real complaint that was resolved).

★★★★★ Gabriel A. Pasadena December 7, 2025

Full rewire of a 1912 Craftsman, three weeks of work including coordinating around our home office. Knob-and-tube replaced throughout, plaster patches handled in 18 spots. New Square D QO 200A panel with proper AFCI/GFCI on bedroom and kitchen circuits. Pasadena Permit Center inspections passed at rough and final. The directory is the cleanest I have ever seen. Bungalow Heaven district.

★★★★★ Eric S. El Monte January 22, 2026

Replaced a 50-gallon atmospheric tank with a Navien NPE-240A2 in the garage. Talia walked the gas line first and confirmed the existing 3/4-inch run wouldn't carry 199,000 BTU, so they upsized a section to 1-inch from the meter and added a sediment trap. Condensate routed to the laundry standpipe with a neutralizer, vent through the side wall with proper clearances, and the LADBS plumbing permit closed without a correction. Hot water at the kitchen now hits 120F in about 14 seconds with the recirc button.

★★★★★ Joaquin R. Boyle Heights May 2, 2025

Kitchen sink had been backing up monthly for a year. Cabled the 2-inch ABS branch with a RIDGID K-7500 sectional and pulled out 22 ft of grease, then ran the camera down to the wye. The disposal P-trap was full of glass shards from a previous tenant. They cleaned it, reset the trap arm at proper slope, and explained why hot water alone wouldn't keep it clear.