
Triple-digit heat on 111 days in a typical year
Hardwood Flooring in Phoenix, AZ
Wood floors for a city where the air conditioner rarely rests, from postwar ranch houses to new builds.
- Free on-site estimates with wood and slab moisture readings
- Written, itemized quotes that list every room and product
- Acclimation and install method planned for desert humidity
Choosing Wood for Phoenix's Long, Hot Summers
Hardwood flooring in Phoenix lives inside homes that are cooled almost all year. On average, 111 days each year reach 100°F or more, and nearly all homes have air conditioning. That constant cooling dries indoor air, and dry air shrinks wood. At the same time, Phoenix is big and varied. Its 518 square miles take in historic central neighborhoods, a huge stock of homes from the postwar building boom and newer subdivisions at the edges. We tailor the floor to the house rather than using one approach for all of them.
Humidity rises and falls with the seasons. Phoenix averages 36.6% relative humidity over the year, but June averages only 19.4% while August climbs to 36.2% as monsoon moisture moves in. Officially, the National Weather Service marks monsoon season from mid-June to the last day of September. For a wood floor, that means a stretch of very dry weather followed quickly by noticeably damper weeks. We set expectations up front: a little seasonal movement is normal, and we choose products and fastening methods that keep it small.
Warm nights mean the AC keeps working. Concrete, asphalt and walls soak up the day's heat and give it back overnight, which keeps Phoenix evenings warm. In July 2023 the city recorded a record warm daily low of 97°F. When the air conditioner runs around the clock, indoor humidity stays low for long stretches. A whole-house humidifier is one option some owners consider; at minimum, keep the thermostat steady instead of letting the house heat up while you are away.
A housing boom built on concrete. Phoenix grew from 106,818 residents in 1950 to 439,170 in 1960, and there was more new construction in 1959 alone than from 1914 to 1946. Most of those homes, like most Arizona homes generally, sit on slabs poured directly on grade because caliche makes digging difficult. When owners pull up old carpet or tile in one of these houses, they usually find concrete. We test it for moisture, grind and patch it flat, and then install engineered hardwood with adhesive or as a floating floor.
Older neighborhoods and historic districts. Central areas such as Encanto, the Melrose District and Arcadia have character homes that owners want to keep authentic. The City of Phoenix Historic Preservation Office reviews exterior alterations and demolition requests for designated properties; its page does not list interior work such as flooring among the things it reviews. If your home is designated, confirm with the city before any project that also touches the outside of the building.
Common Phoenix flooring projects
- Engineered hardwood over slab to replace carpet or dated tile
- Sanding and refinishing older solid floors where they exist
- Board replacement after a plumbing or appliance leak
- Hardwood treads on stairs in two-story homes
- Screen and recoat to refresh a dull finish without full sanding
When water gets under a floor. A burst supply line or a leaking dishwasher can cup boards in a day. Fix the leak first, dry the area, and do not rush to replace wood that may flatten as it dries. We measure moisture before deciding whether boards need to come out, and we can weave in new boards so the repair blends with the rest of the floor.
Phoenix is next door to our base in Scottsdale. Call (480) 565-7673 for a free written estimate.
Phoenix Numbers Worth Knowing
- Extreme summer heat. On average Phoenix logs 111 days at or above 100°F, and roughly 21 of those top 110°F. In 2023 the city set a record with 55 days at 110°F or more.
- Seasonal humidity swing. Average relative humidity is 36.6% for the year, lowest in June at 19.4% and up to 36.2% in August. The NWS counts monsoon season as June 15 through the end of September.
- Postwar building boom. Population rose from 106,818 in 1950 to 439,170 in 1960, and the city saw more new construction in 1959 alone than in the years from 1914 to 1946.
- Historic review is exterior only. The City of Phoenix Historic Preservation Office describes its role as review and approval of exterior alterations to buildings and demolition requests for historic properties.
- A large, mixed housing stock. Across its 518 square miles, Phoenix homes are 57.3% owner-occupied, and 85.5% of people kept the same address over the prior year (Census, 2020-2024).

Phoenix Questions
Does the Phoenix historic preservation office need to approve new wood floors?
The office describes its review as covering exterior alterations and demolition requests. Interior flooring is not on that list, but if your project also changes the outside of a designated home, check with the city first.
Why did my floor cup after monsoon season started?
Cupping happens when the underside of a board takes on more moisture than the top. Rising humidity, a slab that was not tested or sealed properly, or a hidden leak can all cause it. We measure moisture to find the source before suggesting a fix.
My 1950s or 1960s house is on a slab. Can it have hardwood?
Yes. Engineered hardwood is the usual choice over concrete. We test the slab for moisture, level it where needed and either glue the flooring down or float it over an underlayment approved by the manufacturer.
Should I turn off the AC when I travel in summer?
Letting a Phoenix house get very hot is hard on wood and finish. Raise the thermostat a little if you want, but keep the system running so temperature and humidity stay within the flooring maker's range.
Free Estimates in Phoenix, AZ
Free written estimates for hardwood floors across Phoenix.
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