MDB Same Day HVAC Inc. provides professional heating and air conditioning services throughout Concord and Contra Costa County. We focus on accurate diagnostics, transparent pricing, and prompt, reliable HVAC service.
$50 off any AC repair · $400 off a new HVAC installation
24/7
Hour Availability
40mi
Mile Service Radius
8
HVAC Services
24/7 Same-Day Service
Licensed & Insured
Upfront Pricing
What We Do
Complete HVAC Services
Heating, cooling, ductwork and ductless systems for homes across Concord, Antioch and Contra Costa County — installed, repaired and maintained by one local team.
Service call fees apply to HVAC repair visits. Free estimates are available for new HVAC system installations and replacements only. Repair visits are subject to a service call fee.
Why Choose Us
Comfort restored the same day.
Six commitments that shape every call we take — from the first phone call to the moment your system is running the way it should.
24/7
Emergency Availability
40mi
Service Radius
8
HVAC Services
01
24/7 HVAC Service Availability
Call us anytime for HVAC service. Same-day and emergency appointments are subject to technician availability and service area.
02
Upfront Pricing, Always
We explain the recommended work and applicable pricing before repairs begin. Our goal is to provide clear, transparent pricing with no unexpected charges.
03
Accurate Diagnostics, Honest Recommendations
We take the time to diagnose your HVAC system before recommending repairs or replacement. Our goal is to identify the problem and help you choose the right solution for your home.
04
Licensed, Insured & Accountable
A registered California HVAC contractor with full insurance. Your home is protected, the work is done to code, and you have someone to call if anything isn't right.
05
Genuinely Local
We're based in Antioch and operate out of Concord. We know which neighborhoods have undersized returns and which subdivisions run hottest, because we work in them every week.
06
Honest Repair-or-Replace Advice
If your system has good years left, we fix it and tell you so. If it doesn't, we show you the numbers on both paths and let you decide without pressure.
Current Offers
Current Special Offers
Explore our current HVAC promotions and savings on qualifying services. Contact us for details about eligibility and offer terms.
$60 Off
Any duct cleaning
$300 Off
Ductwork installation or replacement
$200 Off
Any water heater replacement
$50 Off
Any heating system repair
$400 Off
Any heat pump system installation
$300 Off
AC and coil installation
$400 Off
New HVAC installation
$50 Off
Any air conditioning repair
$300 Off
Furnace installation
10% Off
Military discount on HVAC or ductwork installation
