Duct Cleaning & Ductwork Repair in Gaithersburg, MD
Your ductwork is the delivery system for every dollar of heating and cooling you pay for — and when it's dirty, leaky, or poorly designed, you feel it in uneven rooms and high bills. P&Y Heating and Cooling cleans, seals, and repairs ductwork across Gaithersburg to restore airflow and efficiency.
We inspect the duct system to find real problems — disconnected runs, crushed flex duct, leaky joints, and undersized returns — and fix the ones that are actually costing you comfort and money.

Signs Your Ducts Need Attention
Ductwork problems are easy to miss but expensive to ignore. Watch for:
- Some rooms never reach the temperature the thermostat is set to
- Weak airflow from vents even with a clean filter
- Visible dust blowing from the registers
- Rising energy bills without a change in usage
- Musty or stuffy air, especially in humid months
- Whistling, rattling, or popping ducts when the system runs
- Rooms over garages, additions, or upstairs that stay uncomfortable
Our Ductwork Process
We diagnose the duct system before recommending cleaning or repair.
Inspect the system
We evaluate accessible ductwork for leaks, disconnections, crushed sections, and airflow restrictions — and check whether returns are undersized.
Recommend the right fix
Cleaning helps some homes; sealing and repair help far more. We tell you which will actually improve comfort and efficiency.
Clean, seal, or repair
We clean ducts where it makes sense, seal leaky joints, reconnect and replace damaged runs, and correct airflow problems.
Verify airflow
We confirm improved airflow to the problem rooms and a more balanced system.
Leaky Ducts Waste Real Money
Studies find that a typical duct system loses a significant share of conditioned air to leaks — air you paid to heat or cool, escaping into your attic or crawlspace. In Gaithersburg's older homes, disconnected and leaky ducts are extremely common. Sealing them is one of the highest-return improvements you can make, often paying for itself in comfort and lower bills.
Ducts and Indoor Air Quality
Dust, allergens, and moisture that settle in ductwork get pushed into your living space every time the system runs. Cleaning and sealing improve the air your family breathes — especially valuable in humid Maryland summers when duct moisture can feed mold. We often pair duct work with indoor air quality solutions for the best result.
What Affects Duct Service Cost
Duct cleaning, sealing, and repair are priced by scope after an inspection. Factors include:
- The size of the home and number of duct runs
- Whether the work is cleaning, sealing, repair, or a combination
- Accessibility (attic, crawlspace, or finished-ceiling runs)
- The extent of damaged or disconnected ductwork
- Whether return ducts need to be resized for proper airflow
Request Service
Fast response · No obligation · Upfront pricing
Why P&Y for Ductwork & Duct Cleaning
Most companies sell a cleaning; we diagnose the duct system. Here's the difference that difference makes.
We inspect before we recommend
We evaluate the ducts for leaks, disconnections, crushed runs, and undersized returns first — then tell you honestly whether cleaning, sealing, or repair is what actually helps.
Sealing that pays for itself
Duct leaks let air you paid to condition escape into the attic. Sealing them is one of the highest-return improvements a home can make — often felt on the very next utility bill.
We fix the uneven-room cause
That bedroom that never cools is usually a duct or return-air problem, not a bad AC. We correct the airflow instead of just adjusting your thermostat.
Where We Provide Duct Cleaning & Ductwork Repair
We clean, seal, and repair ductwork across Montgomery County, from the older homes of Takoma Park with legacy duct runs to two-story homes in North Potomac fighting uneven temperatures. We often pair duct work with indoor air quality solutions.
We serve duct cleaning & ductwork repair across Gaithersburg and all of Montgomery County, including:
Duct Cleaning & Ductwork Repair FAQs
Do I really need my air ducts cleaned?
How do I know if my ducts are leaking?
Why are some rooms in my house always uncomfortable?
Can sealing my ducts lower my energy bills?
How long does duct cleaning or sealing take?
Trusted by Your Neighbors
If you want honest and thorough duct cleaning, these are the folks. They explained why regular cleaning matters and didn't push unnecessary services.
jonatanerazo
Verified Google review
Duct Cleaning
P&Y (Pedro) and his crew were absolutely outstanding. My unit was about 20 years old and giving problems. He was very responsive and made an appointment the same day. He not only told me the issue but gave me options — a repair price and a price on a new unit — even knowing the unit was 20 years old. Other companies just told me to change the unit. His crew spent almost 7 hours and tested it so it worked perfectly. Reasonable and great pricing than these big box companies.
Sandeep Visveswaran
Verified Google review
AC Installation
Great service and very honest. My parents had an HVAC issue where they called two different companies and both said to replace the whole unit. We decided to go for a 3rd opinion and contacted P&Y. It turned out to be a simple fix.
Mario Velarde
Verified Google review
AC Repair
Need Duct Cleaning & Ductwork Repair in Gaithersburg?
Family-owned, licensed, and available 24/7. Call now for fast service and a free estimate across Montgomery County.
- 5.0★ (112+ reviews)
- Licensed & Insured
- 24/7 Emergency Service
