Builders Unlimited Inc

Hayward, CA, 94545

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About Builders Unlimited Inc

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Specialties

Heating and Cooling

From Our Blog

Water Heater Replacement: Signs It's Time, Costs, and Your Best Options

Aug 17, 2026

Are you due for a water heater replacement? Find out more about your options, costs, and when replacement makes more sense than repairs.

Book a Contractor Online in 5 Minutes: What You Need Before You Start

Aug 13, 2026

Need a contractor? Here's our checklist to help you find a trusted pro and submit all the info needed to get a quote fast.

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Service Areas

94545, 94544, 94541, 94542, 94580, 94587, 94579, 94546, 94555, 94578, 94552, 94577, 94536, 94560, 94603, 94605, 94538, 94621, 94065, 94404, 94502, 94583, 94586, 94619, 94588, 94063, 94601, 94539, 94568, 94566, 94303, 94403, 94501, 94401, 94070, 94602, 94025, 94002, 94301, 94027, 94582, 94402, 94061, 94606, 94526, 94062, 94304, 94556, 94610, 94305, 94306, 94010

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