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MDB Same Day HVAC Inc

Heating · Cooling · Comfort

Ductless mini split indoor head mounted on a white brick wall in a Contra Costa County home
$400 Off Heat Pump Install

Mini Split Systems

Ductless comfort, room by room — serving Concord and all of Contra Costa County.

24/7 Service
Licensed & Insured
Upfront Pricing
Overview

Mini Split Systems in Concord & Contra Costa County

Mini splits are the right answer for the rooms that ductwork never reached — converted garages, ADUs, additions, sunrooms, and older homes with no duct chase at all. Each head is independently controlled, so you heat and cool only the space you're using. We handle single-zone and multi-zone systems from layout through commissioning.

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 and provide clear written pricing.

What's Included

Every job covers the essentials

  • Single-zone and multi-zone ductless systems
  • ADU, garage conversion and addition installs
  • Heat pump mini splits for year-round comfort
  • Precise line set routing and condensate planning
  • Independent room-by-room temperature control
  • $400 off qualifying heat pump system installations
Our Process

Four steps from first call to final check

01

Zone Planning

We map head placement and outdoor unit location for the quietest, cleanest install.

02

Equipment Match

Capacity per zone is selected so no room is over- or under-served.

03

Precision Install

Line sets routed discreetly, wall penetrations sealed, and condensate pitched correctly.

04

Commissioning

Vacuum, charge, and control setup verified, then we walk you through the remote.

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

Mini Split Systems questions, answered

Ready When You Are

Talk with us about mini split systems

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