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(408) 876-2599

Heating and Air Conditioning
Experts in the Bay Area.

24/7 Emergency HVAC & Electrical Repair, Maintenance and Installation
Our Services

We're a full service heating , cooling and electrical company serving the Bay Area.


  • Fully Licensed and Bonded
  • Over 5 Years Serving Illinois
  • BBB Accredited Business
  • 100% Customer Satisfaction
  • 1 Year Warranty on All Parts
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Residential HVAC Elec

All Residential Service and Repairs For Electrical and HVAC
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Commercial HVAC & Elec

All Commercial Electrical and Hvac Installation and repairs
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Free Estimates

We offer free estimates for new heating and air conditioning systems & Electrica Installation & Upgrade.

Electrical-Heating-Cooling Services

We do all Electrical & mechanical services for your Pump , Hvac , etc
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HVAC System Installation

Installing new system ? get Free Estimates today .
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Furnace and Boiler Service

Repair & Preventative Care of all Boilers brand.
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Pre-Season Maintenance

maintain  your Hvac system before every season.
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Commercial Refrigeration

Looking for refrigeration repair ?  walkin freezer , Ice machine call us now 24/7
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Electrical Repair

 No Power? light out? upgrade ? call us now 24/7.
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Indoor Air Quality

Low Air flow? No Power? we can help you give us a call.

We Service and Repair All Makes and Models.

While we carry of full line of Acme HVAC , Electrical systems and parts, our certified and highly trained heating , cooling and electrical technicians are experienced with all major industry brand products.
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Customer HVAC & Electrical Maintenance Plans

Our Plans set to Preventative your Electrical & HVAC system from damage and saving energy , upgrade your lighting to LED and other works you will choise from the list we have
Preventative Care
$/mo.
  • Preventive Maintenance Twice A Month
  • Service & Clean All HVAC Unit
  • Preventive your HVAC system 
  • Checking Ampare and power usage 
  • Checking For Any refrigerant Leak 
  • Boilers and Chillers PM
Contact Us
Preventative + Labor
$/mo.
  • All Electrical & HVAC Repaire
  • Labor Included
  • 4 Times a month 2H/Day
  • Recommendation for System upgrades
  • 24/7 Free service call 1/Months
  • Full Monthly Report
Contact Us
Preventative + Labor + Parts
$/mo.
  • Boilers and Chillers PM
  • 24/7 Free service call Unlimited
  • 4 Times a month 4H/Day
  • Free Labor + Parts up to $500/M
  • Full report with pictures and power usage
  • Free electrical Upgrade 
Contact Us

What Our Customers Say...

One word - Professional. will definitely refer them to all my friends!

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Why Choose United Electrical & Mechanical LTD

As one of the leading HVAC and technology specialists, we’ve got 10+ years’ experience of providing design and installation services – and we’re on hand to apply our expertise to your next project. From the printing industry to the retail sector, United E&M S has worked with hundreds of businesses across the Bay Area to develop full turnkey installations in areas such as Building Services, Archive Storage Rooms, Environmental Control and Process Engineering Solutions. Take a look at our core specialisms – and get in touch to talk about how we can help you.

A Licensed & Bonded Contractor In Bay Area For Comercial and Residential Hvac , Electrical , Plumbing  A trusted company by Many Comercial Busnises & Resdentail Like Marriott , Holiday inn and others ,  24/7 

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Email or call us for any questions
icon mappin contactAddress
Fremont
icon phone contactOffice Phone
+1 (408) 8762599
icon fax contactOffice Fax

icon evelope contactCustomer Email
info@unitedemc.com
icon calendar contactOffice Hours
Mon - Sun: 7am-5pm

icon clock contactEmergency Service
24/7 Service & Repair
+1 (408) 876-2599
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