Dagsboro, DE
Dagsboro, DE, has a certain charm that's hard to put into words, but nothing is charming about a broken furnace in February or an air conditioner gasping through a humid Delaware summer. Custom Mechanical has been the Delmarva region's trusted name in heating and air conditioning since 1981, bringing over decades of hands-on expertise to homeowners who expect more than a quick fix. We know this area, we know its weather and we know exactly what it takes to keep your home comfortable all year.
Keep Your Furnace Operating Safely With Heating Repair in Dagsboro, DE
Sussex County winters may not rival the Arctic, but damp, bone-chilling cold is a reality from November through March in Dagsboro, DE. A furnace that hesitates, cycles too frequently or fails to reach your set temperature is signaling trouble, and ignoring those warning signs almost always leads to a more expensive heating repair down the road. Custom Mechanical's licensed service technicians service and repair all major furnace brands, pinpointing problems like cracked heat exchangers, faulty ignitors and failing blower motors before they strand your family in the cold. Fast response times and fully stocked service vehicles mean most heating repairs are handled on the very first visit.
Maximize Efficiency With a Heat Pump Installation in Dagsboro, DE
For Dagsboro, DE, homeowners looking to modernize their heating and air conditioning setup, a high-efficiency heat pump offers a compelling combination of year-round comfort and serious energy savings. Unlike traditional systems that generate heat, heat pumps transfer it, making them up to three times more energy efficient than conventional electric resistance heating. Custom Mechanical is experienced in sizing, installing and servicing heat pumps from all leading manufacturers, including Carrier. Our service technicians assess your home's specific needs, recommend the right system and handle the entire installation from start to finish. The result is a quieter, more efficient home that stays comfortable whether Dagsboro, DE, is baking in August or bracing against a January nor'easter.
Stay Ahead of HVAC Breakdowns With a Custom Mechanical Service Plan
The most expensive air conditioning repair is the emergency call you never saw coming. Custom Mechanical's preventive maintenance plans are designed to eliminate that scenario, giving Dagsboro, DE, homeowners scheduled, thorough system check-ups that catch wear and inefficiency before they escalate. Homes experience fewer breakdowns but also benefit from lower monthly energy bills and longer equipment lifespans.
Don't wait for your HVAC system to wave a white flag. Call Custom Mechanical today to schedule heating or air conditioning service in Dagsboro, DE.
Recent Jobs and Reviews in Dagsboro, DE
Job Locations and Reviews
Diagnosed loud squealing noise from 10-15-year-old 3-ton HVAC system. Inspection revealed significant rust and oxidation on mechanical components. Determined undersized ductwork combined with operation during cooler outdoor temperatures was causing low suction pressure, resulting in system freezing. Advised customer to monitor performance during hotter weather and consider mini-split installation as a future solution to eliminate package unit, furnace, and problematic ductwork.
Conducted site assessment for package unit reinstallation. Observed significant issues with existing installation including improper sealing between unit housing and wall (excessive expanding foam application with discoloration indicating possible moisture intrusion). Documentation of current conditions completed with detailed photography to support comprehensive reinstallation quote.
Successfully installed a Rinnai RE199iP LP tankless water heater with all necessary components including service valve kit, horizontal termination kit, expansion tank, and required brass/black iron fittings. Completed proper venting with PVC pipes and connected unit to existing water lines with appropriate valves. System was tested and confirmed operational with temperature set to 120°F.
Successfully replaced existing HVAC system with a new American Standard 3-ton 17 SEER heat pump (5A6H7036) and variable speed fan coil unit (5TEM6D04) with 15KW auxiliary heat package. Installation included complete removal of old equipment, mounting the outdoor unit on pressure-treated wood platform, installing the indoor unit with proper drainage, reconnecting to existing EccoBee thermostat, and full system commissioning with refrigerant line flushing, pressure testing, and charging.
Responded to no hot water complaint. Upon inspection of the water heater, found the unit installed in a utility space with proper venting and insulation intact. Observed exhaust duct and PVC piping connections in good condition. Service restored hot water functionality.
Completed warranty service call for S9V2B080U4VSBBAS furnace (serial #25085XFAKG). Replaced defective motor under year 1 warranty coverage. Removed old motor to be returned to supply house as required by warranty terms.
Conducted attic inspection through access hatch to evaluate system replacement requirements. Observed green insulation board and existing construction materials in attic space. Documented current conditions with photographs to support comprehensive HVAC replacement estimate.
Responded to no heat call for system 10+ years old. Diagnosed faulty limit switch causing system shutdown during heating cycles. Replaced limit switch, cleaned flame sensor, and checked thermostat operation - system now functioning properly with consistent flame and normal cycling.
Responded to no heat complaint following power outage. Inspection revealed water damage in attic affecting PVC condensate drain connection, which had leaked onto OSB flooring. Repaired damaged pipe connection and verified system operation restored.
Performed scheduled heating maintenance on two systems. Conducted combustion analysis on primary system with readings showing 96.3% efficiency, 12.4% O2, 17ppm CO, and 5.6% CO2 at 89°F stack temperature. Second system (heat pump) was found with significant frost buildup on outdoor unit, indicating potential refrigerant or defrost cycle issues.
Successfully installed a Mitsubishi mini-split system with outdoor condenser unit mounted on a wooden platform. Completed all necessary electrical connections through junction box and ran refrigerant lines to the interior. System was properly staged prior to installation and thoroughly tested for optimal performance.
Completed full HVAC system replacement including removal of old equipment and installation of new S9B1B080U4P furnace with drain pan and shut-off, 5TXCB0O3 coil, and 5A7A4036 3-ton air conditioner on pressure-treated wood platform with drain pan. Installed T-6 non-WiFi thermostat, performed system flush, pressure tested and recharged refrigeration lines, and installed electrical whip and disconnect.
Removed old geothermal split system from bonus room kneewall location and installed new Mitsubishi ductless system consisting of MUZ-GX12NL 12,000 BTU 25 SEER outdoor heat pump unit and MSZ-GX12NL wall-mounted indoor air handler with remote thermostat. Positioned outdoor unit on custom wooden stand near crawlspace entrance, reused and extended existing disconnect, and ran new lineset following previous geothermal split system pathway.
Responded to emergency service call for customer without heat for one week (ref #39550310). Diagnosed R vs R part delay issue in existing HVAC system located in utility area. Conducted comprehensive assessment of furnace unit with connected ductwork and insulated components to determine replacement requirements and prepare estimate for system restoration.
Inspected customer's heating system in response to no heat complaint. Discovered sagging insulation in unfinished basement area and identified issue with PVC exhaust pipe positioning. Repositioned pipe to proper alignment, secured loose connections, and verified proper system operation. Unit now functioning correctly with normal heat output.
Performed scheduled heating maintenance service. Conducted temperature testing with UEI meter showing 74.8°F at the supply ductwork, confirming proper system operation. Verified thermostat functionality with heat set point at 74°F and system responding correctly in heating mode.
Performed scheduled heating system maintenance and combustion analysis. Conducted comprehensive testing with Bacharach analyzer showing excellent system efficiency (97.7%) with acceptable O₂ levels (7.3%), CO levels (28ppm), and stack temperature (89°F). System is operating within manufacturer specifications.
Completed routine heating maintenance service on customer's system. Performed combustion analysis using Bacharach analyzer, confirming proper operation with 89.4% efficiency, 10.1% O₂, 7.1% CO₂, and safe CO levels at 3 ppm, with stack temperature at 113°F.
Performed scheduled heating maintenance service on two systems. Conducted combustion analysis using Bacharach analyzer, confirming optimal performance with 94.1% efficiency, proper oxygen levels at 9.9%, and zero carbon monoxide emissions. Stack temperature measured at 102°F with CO₂ at 7.2%, indicating systems are operating safely and efficiently.