Our door closer slams in summer and drags in winter — can the hydraulic tension actually be adjusted?
Yes — hydraulic closers have adjustment valves that control closing speed, latching speed, and back-check resistance, and Phoenix's temperature swings genuinely affect how fluid viscosity behaves through the seasons. Sundial Locksmith fine-tunes closer settings to account for AZ's climate so the door closes consistently whether it's 65°F or 115°F outside. Call (480) 525-7778 and we'll dial it in for you.