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MDB Same Day HVAC Inc

Heating · Cooling · Comfort

Refrigerant gauges and diagnostic tools set up beside a residential AC condenser during a service call
$50 Off AC Repair

Residential AC Repair

Same-day cooling repairs, 24/7 — serving Concord and all of Contra Costa County.

(415) 368-1341
24/7 Service
Licensed & Insured
Upfront Pricing
Overview

Residential AC Repair in Concord & Contra Costa County

The name says it: same day. When your air conditioner stops cooling, short-cycles, freezes over, or trips the breaker, we get a technician out fast and diagnose the actual failure — capacitor, contactor, blower, control board or refrigerant leak. You get the price before we turn a wrench, with $50 off any air conditioning repair.

Every visit starts with a real diagnostic and ends with a written price you approve before the work begins. We answer the phone 24 hours a day. This is a service visit for an existing system — a service call charge applies and is confirmed when you book.

What's Included

Every job covers the essentials

  • Same-day and 24/7 emergency repair calls
  • Capacitor, contactor and control board replacement
  • Refrigerant leak detection and recharge
  • Frozen coil and airflow restriction diagnosis
  • Blower motor and fan repair
  • $50 off any air conditioning repair
Our Process

Four steps from first call to final check

01

Rapid Dispatch

Call and we schedule the soonest available window — including nights and weekends.

02

Real Diagnostic

Electrical, refrigerant, and airflow are all tested so nothing gets replaced unnecessarily.

03

Upfront Pricing

You approve the repair and the price before any work begins — no surprise line items.

04

Verified Cooling

We run the system and confirm the temperature split before packing up.

Why It Matters

The difference a proper job makes

Diagnostics, sizing and installation quality decide whether a system runs quietly for fifteen years or becomes an annual repair bill.

Fixed the Same Day

We dispatch fast and carry the common failure parts, so most calls are resolved on the first visit rather than after a return trip.

Price Before the Work

You approve a written number before anything begins. No hourly meter, no add-ons discovered halfway through the job.

Measured, Not Guessed

Airflow, static pressure and refrigerant charge are all tested, so the fix addresses the real cause instead of the obvious symptom.

Built to Code

Every installation is completed to current California code and verified under load before we consider the job finished.

Our Standard

Detail-driven from start to finish

Reliable HVAC comes from disciplined habits, not shortcuts. This is the standard we hold ourselves to on every call.

Plain-English Answers

We explain what failed and why, without the jargon or the pressure.

Proper Load Sizing

Equipment is matched to your home, not to a rule of thumb or the last unit installed.

Quality Components

We install parts chosen for service life in a hot inland climate, not the cheapest available.

Respect for the Home

Floors covered, work area cleaned, and old equipment hauled away when we leave.

Verified Performance

Temperature split, airflow and safeties are all confirmed and documented before sign-off.

Current Promotions

Ask about current repair, installation, ductwork and military promotions when you schedule.

FAQ

Residential AC Repair questions, answered

Ready When You Are

Schedule a diagnostic for residential ac repair

Tell us what your existing system is doing and we'll get back to you with clear next steps — usually the same day.

(415) 368-1341