Air Conditioning, Heating & Plumbing in Tucson, AZ

Our trucks leave the shop on South Evans Boulevard every morning, and on most days the bulk of them stay inside city limits. Tucson has more than 130 neighborhoods and over 30 historic districts, so one route can include an 1800s adobe row house in Barrio Viejo, a 1930s Pueblo Revival home in Sam Hughes, and a postwar ranch on a concrete slab before lunch. Each of those homes handles heat, water, and soil differently, and that’s what we plan around for AC, heating, and plumbing work.

Schedule service today and get help from a crew that works in Tucson neighborhoods every day.

Air Conditioning

Tucson averages about 68 days at or above 100 degrees between May and October, based on weather service records going back to 1895. The first triple-digit day usually lands around late May, and cooling systems often run hard into October. Then the monsoon arrives on June 15 and brings blowing dust, humidity spikes, and lightning that can rattle compressors and control boards.

Older homes add their own wrinkles. Plenty of adobe and early masonry houses were built long before central air, and many were later fitted with ducts squeezed into tight attics or cooled with evaporative coolers. Those retrofits often explain rooms that never cool down.

• A unit that’s blowing warm air in the middle of a July heat wave needs prompt AC repair.

• Systems pushing past their second decade of Tucson summers are usually good candidates for AC installation with properly sized equipment.

• A spring tune-up through AC maintenance clears out the coil dust left behind by the last monsoon.

• Thick-walled adobe homes without ductwork tend to do well with ductless mini splits mounted room by room.

• Leaky or undersized retrofit ductwork in older attics can be sealed or rebuilt through our air duct services.

Book your AC tune-up before the next 100-degree stretch arrives.

Heating

Tucson’s heating season is short, but it’s real. The airport normally records around 10 nights at or below freezing each winter, according to National Weather Service climate data, and homes near washes and lower ground often run several degrees colder. A furnace or heat pump that sat idle all summer collects dust on burners and coils, which is why the first cold morning brings a wave of service calls.

Heat pumps are common in newer construction, while many older midtown homes still rely on gas furnaces that are well past their expected service life.

• A system that won’t fire up on the first cold night calls for heating repair.

• A fall inspection through heating maintenance checks burners, igniters, and safety controls before you need them.

• Gas-heated homes with aging equipment can compare repair and replacement options for furnaces.

• Many Tucson homeowners pick heat pumps because they cover both heating and cooling with one system.

Contact us today to get your heating checked in the fall, before the first freeze warning.

Plumbing

Much of Tucson’s housing sits on slab-on-grade foundations over caliche, a cemented layer of calcium carbonate that’s tough to dig through. That combination makes hidden leaks harder to reach and excavation slower than in many cities. Tucson Water also delivers a blend of recharged Colorado River water and groundwater, and the mineral content leaves scale in water heaters, fixtures, and supply lines over time.

In older neighborhoods near downtown and the university, decades-old drain and sewer lines face root intrusion from mature trees and the wear that comes with age.

• A sudden jump in your water bill or a warm spot on the floor is a good reason for leak detection.

• Homeowners tired of scale and short-lived tanks often move to tankless water heaters with annual descaling.

• Mineral buildup on fixtures and appliances can be reduced with water treatment services.

• Repeated backups in older homes usually point to a problem farther down in the sewer lines.

• A camera inspection shows root intrusion or cracked pipe before anyone starts digging through caliche.

• Homes with aging galvanized or failing copper supply lines may need whole-house repiping.

Reach out today to get plumbing service scheduled at your Tucson home.

Commercial HVAC & Plumbing

D&H has worked on Tucson commercial buildings since the city’s growth in the 1960s. Restaurants, offices, and retail spaces along corridors like Speedway and Broadway run cooling equipment for long hours, and the same dust and heat that wear on home systems hit rooftop units even harder.

• Rooftop units and split systems for offices and storefronts are covered by our commercial HVAC services.

• Businesses replacing aging gas heat can plan ahead with commercial furnace installation.

• Restrooms, kitchens, and backflow needs fall under commercial plumbing services.

Contact D&H to set up service for your Tucson business.

Why Choose D&H Air Conditioning, Heating & Plumbing?

• We’ve operated out of Tucson since January 1959, when Arthur Duhamel and Harry Hawk combined their initials to start the company.

• Our crews see adobe, masonry, and slab construction every week, so recommendations account for how your house was actually built.

• We work with Tucson-based vendors and suppliers, which helps keep common parts close.

• Our customer care team calls after every visit to confirm the work met your expectations.

• Dispatch runs day and night for heat waves, freezes, and burst pipes.

• We also serve neighboring communities, including Casas Adobes, the Catalina Foothills, Vail, and Sahuarita.

Book an appointment with a team that’s been working on Tucson homes for more than 67 years.