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MDB Same Day HVAC Inc

Heating · Cooling · Comfort

Insulated flexible duct reconnected and sealed at a residential furnace during a duct repair
$300 Off Ductwork

Duct Repair

Seal leaks, restore airflow, cut waste — serving Concord and all of Contra Costa County.

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

Duct Repair in Concord & Contra Costa County

A perfectly good furnace or air conditioner can't fix a leaking duct system. Disconnected runs, crushed flex, torn insulation, and unsealed joints quietly dump conditioned air into your attic or crawlspace. We inspect the whole run, repair what's failing, and reseal it properly so the comfort you're paying for actually reaches your rooms.

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

  • Full attic and crawlspace duct inspection
  • Disconnected and collapsed run repair
  • Mastic sealing of joints, boots and plenums
  • Insulation repair and R-value upgrades
  • Room-to-room airflow balancing
  • Documented before-and-after airflow readings
Our Process

Four steps from first call to final check

01

Duct Inspection

We trace every supply and return run to find leaks, kinks and disconnections.

02

Repair Scope

You get a clear list of what needs sealing, what needs replacing, and what is fine as-is.

03

Seal & Reconnect

Mastic, mesh and mechanical fasteners — not tape that peels off in six months.

04

Airflow Recheck

We re-measure delivery at the registers so the improvement is measurable, not assumed.

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

Duct Repair questions, answered

Ready When You Are

Schedule a diagnostic for duct 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