Duct Repair in Cambridge, Ontario
Prolific Mechanical repairs damaged, leaking, and disconnected ductwork in Cambridge homes. Our technicians locate airflow restrictions, seal leaking joints, replace corroded or crushed sections, and rebalance your system to restore even heating and cooling throughout every room.
Duct Repair Services in Cambridge
Ductwork problems are hidden inside walls, floors, and ceilings, but their symptoms are hard to miss. Rooms that are consistently too hot or too cold, higher-than-expected utility bills from Cambridge and North Dumfries Hydro or Enbridge Gas, excessive dust on furniture, whistling or rattling from registers, and a furnace that short-cycles or overheats can all point to duct issues. The average home with unsealed ductwork loses 20 to 40% of conditioned air into spaces where it does no good.
In Cambridge homes built across different eras, we find different problems. Post-war homes in Preston and Hespeler from the 1950s and 1960s often have original ductwork that was never sealed at joints and lacks insulation in unconditioned spaces. Heritage buildings in Galt may have had ductwork added decades after construction, sometimes routed through unconventional paths that create restrictions. Newer homes in Champlain and Southwood can develop issues from settling, thermal expansion shifting attic connections, or flexible duct that has been compressed. We provide free estimates for duct inspection and repair across all Cambridge neighbourhoods.
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The first time. Every job backed by our workmanship guarantee.
HOW OUR PROCESS WORKS
Call or Book Online
Describe your duct repair needs and we will schedule a visit, often same-day for emergencies. Call 519-729-1456 or use our online form.
Professional Assessment
A licensed technician arrives at your Cambridge property with diagnostic tools, assesses the situation, and provides transparent pricing before any work begins.
Problem Solved
We complete the work to the highest standards, test everything, and don't leave until you're completely satisfied.
PROLIFIC MECHANICAL REVIEWS
From Our Valued Clients
"Prolific Mechanical was fantastic. Quick response, fair pricing, and the technician explained everything clearly. Our furnace was back up and running the same day."
"Tom and his team installed our new AC unit and it works perfectly. Very professional, cleaned up after themselves, and the price was exactly as quoted."
"We had an emergency with our furnace on a cold January night. Prolific came out within hours and fixed the issue. Can't recommend them enough."
The Problems We Find Most Often
Leaking joints are the most common issue. Supply and return connections that were never sealed, or sealed with tape that has dried and peeled off over the years, leak conditioned air into basements, attics, and wall cavities. Disconnected sections are another frequent finding, especially in attics where duct joints separate over time from thermal cycling.
Crushed or kinked flexible duct that has been stepped on or compressed by stored items loses most of its airflow capacity. In older Galt and Preston homes, we also find galvanized trunk sections rusted through near high-moisture areas like laundry rooms and near foundation walls where condensation collects. We cut out corroded sections and fabricate exact-match replacements from new galvanized steel.
Duct Sealing Delivers the Best Payback
If you could make only one improvement to your HVAC system, duct sealing would deliver the best return on investment. Sealing accessible joints with mastic compound stops conditioned air from leaking into spaces you are not trying to heat or cool, and stops unconditioned air from being pulled into the return side.
We seal both supply and return ductwork. Return leaks are often overlooked but equally wasteful, pulling cold basement air or hot attic air into the system and forcing your furnace or AC to work harder. After sealing, we measure airflow at every register and adjust dampers to deliver balanced conditioning to each room throughout your Cambridge home.
What to Expect During Your Duct Repair
Inspection
We physically inspect all accessible ductwork in your basement, attic, and crawlspace. We measure airflow at each supply register and check static pressure at the furnace to identify restrictions and leaks throughout the system.
Diagnosis and Estimate
We identify specific problem areas including disconnected sections, unsealed joints, crushed runs, and missing insulation. You receive a written estimate with the scope of repair before any work begins.
Repair and Sealing
We seal leaking joints with mastic, replace damaged or corroded sections with custom-fabricated galvanized steel, reconnect separated ductwork, and insulate any exposed runs in unconditioned spaces.
Airflow Balancing
After repairs, we measure airflow at every supply register and adjust branch dampers to deliver balanced conditioning to each room. A sealed and balanced system eliminates the hot and cold spots throughout your home.
FREQUENTLY ASKED QUESTIONS
How do I know if my ductwork is leaking?
Several signs suggest duct leakage: rooms that are consistently harder to heat or cool than others, visible gaps at duct joints in the basement or attic, dust streaks around connections where air escapes, and a furnace that runs longer than expected. Post-war homes in Preston and Hespeler with original 1950s ductwork almost always have unsealed joints that leak conditioned air into the basement. With the furnace running, hold your hand near visible duct joints. If you feel warm air escaping, those joints need sealing.
Why is my second floor always hotter or colder than my main floor?
Leaking or disconnected ductwork is usually the culprit. In two-storey Cambridge homes, the supply trunk runs along the basement ceiling and feeds branches up to each floor. If joints in that trunk are unsealed, conditioned air leaks into the basement before it ever reaches the second storey. We see this constantly in Preston and Hespeler homes where original 1950s ductwork was never sealed at the connections. Attic duct runs that have separated or been crushed by stored items cut off airflow to specific rooms entirely. Measuring airflow at every register pinpoints exactly where the system is losing air.
Is duct repair different from duct cleaning?
Yes, they address different problems. Duct cleaning removes accumulated dust and debris from inside the duct surfaces. Duct repair fixes structural problems like leaking joints, disconnected sections, and corroded or crushed runs. Many Cambridge homes need both, but if you have to prioritize, sealing and repair delivers a much higher return through energy savings. In Southwood and Champlain where ductwork is newer but may have been poorly sealed during construction, a targeted sealing job can noticeably reduce your Enbridge Gas and hydro bills.
How long does duct repair take in a Cambridge home?
Sealing accessible joints in a typical basement takes half a day to a full day depending on the number of connections. Replacing a corroded trunk section, common in Blair and West Galt basements near foundation walls where moisture collects, is usually a one to two hour job per section. A comprehensive sealing of the entire accessible system, including basement, attic, and crawlspace, typically takes a full day. We provide a clear scope and timeline during the free estimate.
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