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Heating, Air Conditioning and Commercial Refrigeration

Big Bear Lake, CA, & Surrounding Areas 

Over 35 Years of Experience

No Hidden Fees or Charges

Family-Operated Since 1990

Complete HVAC Solutions For Your Comfort

M&M Mechanical Services provides full-service heating and air conditioning solutions throughout the Big Bear Lake, CA, & surrounding areas. Established in 1990, our family-operated business has spent over three decades delivering dependable HVAC services with straightforward pricing and no surprises. Our team is highly responsive, ensuring smooth communication with all customers.

Our dedication to the Big Bear Lake community guides our work. From urgent repairs to specialized sheet metal fabrication, we proudly stand behind everything we do. As a local business with more than 35 years in the industry, we've established ourselves through technical skill combined with friendly, accessible service. When your home or business experiences temperature issues or air quality concerns, our skilled technicians respond quickly to restore your comfort. Ready to get started? Contact us today!

Why Choose Us

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Highly Responsive Staff, Prompt Services

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No Hidden Fees or Charges

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We Stand Behind Our Work

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Over 35 Years of Experience

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Family-Operated Since 1990

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Locally Owned Business

M & M Mechanical Services Inc DBA Big Bear Sheet Metal

AC Services

Our complete air conditioning services maintain comfortable temperatures in your home during warmer months. We perform installation, repair, and maintenance for all major AC brands and system types, focusing on performance and energy efficiency.

AC Services

Our complete air conditioning services maintain comfortable temperatures in your home during warmer months. We perform installation, repair, and maintenance for all major AC brands and system types, focusing on performance and energy efficiency.

Heating Services

Face Big Bear's cold seasons confidently with our heating system services. We install, repair, and maintain furnaces, heat pumps, and various heating systems to ensure they work reliably when temperatures fall.

HVAC Testing

Face Big Bear’s cold seasons confidently with our HVAC testing services. We test and evaluate your heating and cooling systems to help ensure they run safely, efficiently, and reliably year-round.

Commercial Refrigeration Services

Local businesses count on our commercial refrigeration expertise. We handle installation, maintenance, and repair for walk-in coolers, freezers, display cases, and other essential refrigeration equipment for your business needs.

Plumbing Services

We offer reliable plumbing services for homes and businesses alongside our HVAC work. Our licensed professionals tackle pipe repairs, fixture installations, and regular plumbing maintenance with careful attention to detail.

Seasonal Maintenance

Regular system care prevents breakdowns and extends equipment life. Our seasonal tune-ups prepare your heating and cooling systems for high-demand periods, ensuring they work properly when needed most.

Plumbing & Water Heating Services

Regular plumbing and water heating maintenance helps prevent costly repairs, improves efficiency, and extends the life of your systems. Our routine service checks keep pipes, fixtures, water heaters, and tankless systems working properly, helping you avoid unexpected breakdowns and ensuring reliable performance when you need it most.

Sheet Metal Fabrication

Our custom sheet metal fabrication makes us unique in Big Bear Lake, CA. We create specialized ductwork, flashings, and HVAC components designed specifically for your project needs and space requirements.

Specialty HVAC Services

We solve unusual heating and cooling challenges with specialized solutions. From radiant floor heating to ductless mini-split systems, we design comfort systems for unusual spaces and specific requirements.

Thermostat Services

Improve comfort and reduce energy costs with our thermostat services. We offer smart, programmable, and standard options that give you better control over your indoor climate.

Thermostat Services

Improve comfort and reduce energy costs with our thermostat services. We offer smart, programmable, and standard options that give you better control over your indoor climate.

Water Heating Services

Our water heating solutions ensure reliable hot water for daily needs. We install and service traditional tank, tankless, and heat pump water heaters, helping you find the most efficient option for your situation.

Water Heating Services

Our water heating solutions ensure reliable hot water for daily needs. We install and service traditional tank, tankless, and heat pump water heaters, helping you find the most efficient option for your situation.

Recent Projects

A grey HVAC air handler unit suspended in a crawlspace, connected to flexible silver air ducts and insulation.
A metal walk-in cooler stands under a building overhang next to a brown door, with a utility vehicle parked nearby.
A glowing gas fireplace set into a rustic stone wall, with the bottom compartment open to reveal internal components.
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Here's what our satisfied customers are saying...

At M&M Mechanical Services, we take pride in providing exceptional residential and commercial HVAC, plumbing, and sheet metal fabrication to our customers. We would be grateful if you could share your thoughts about our business with others. Your feedback helps us improve and helps others make informed decisions. Please take a moment to leave a review of M&M Mechanical Services and let others know what you think.