Calfo & Haight Wilmington DE

Business Overview

Calfo & Haight in Wilmington, DE has served homes and businesses since 1967. The company is family-run, with long-time plumbing and HVAC technicians on staff. Emergency service is available; customers are asked to call the office for after-hours help. The team handles both residential and commercial jobs, from single-room repairs in older rowhouses to HVAC installation in new suburban builds.

Key Services

Calfo & Haight Wilmington DE focuses on practical, on-site solutions. Main offerings include:

• HVAC installation and replacement — full system swaps with custom sheet metal ductwork made and installed by the crew.
• HVAC system repair — diagnostics, parts replacement, and routine maintenance to keep systems running through hot, humid summers and chilly winters.
• Plumbing inspection — leak checks, pipe repairs, fixture replacement, and hot water heater services including tankless models.

They also install new water and sewer service when needed and handle everyday plumbing problems from running toilets to burst pipes.

Areas Served

The company works across northern Delaware, nearby Pennsylvania counties, and southern New Jersey. Service areas include:

• Wilmington, Newark, Middletown, Bear, Glasgow, Brookside, Hockessin, Pike Creek, North Star, Wilmington Manor, Elsmere, New Castle, Greenville, Delaware City, Saint Georges (DE)
• New Garden, East Nottingham, London Grove, Kennett, Thornbury, East Marlborough, Kennett Square, Pocopson, Pennsbury, London Britain, Lima, Chester Heights, West Fallowfield, Upper Oxford, Toughkenamon, Newlin Township, Avondale (PA)
• Pennsville, Carneys Point, Penns Grove, Oldmans, Lower Alloways Creek, Mannington, Alloway Township, Quinton Township, Elsinboro Township (NJ)

Company History

Augustine "Augie" Calfo and Donald "Slim" Haight started the firm in May 1967. At first the business had three people handling work and the books. Over time the company grew as demand increased and family members joined. Augie's children and later a grandson became plumbers with the business. Augie and Slim have passed on, but family members still run daily operations and remain connected with long-standing customers.

Leadership

Today the leadership keeps the original focus on honest service and neighborhood ties. Management lives locally and keeps close contact with technicians and customers. Staff participation in community projects and local referrals is part of how the company stays involved.

Specialties & Highlights

• Services all brands of HVAC and plumbing equipment.
• Makes and installs custom sheet metal ductwork for new units and new homes.
• Replaces hot water heaters, including tankless units; installs water and sewer service.
• Long employee tenure: many technicians have worked with the firm for years.

Why Locals Choose Calfo & Haight

People in Wilmington and nearby towns pick Calfo & Haight for dependable, straightforward service. The company combines decades of local experience with in-house ductwork and a family approach to staffing. Regular customers return for clear estimates, steady workmanship, and a team that understands local homes and weather patterns.

Hours: Mon–Fri 7:30 AM–4:00 PM. For a fast, no-obligation estimate call or fill out the contact form on the website.