Chamberlain Services LLC

We are a licensed and insured, full-service HVAC team based in Manassas, Virginia, with more than 60 years of combined industry experience. We work on residential, commercial, and industrial projects, providing service, installation, and maintenance with careful attention to workmanship and customer service. Our capabilities extend beyond heating and cooling to electrical, gas fitting, and plumbing projects, allowing our skilled technicians to support a broad range of customer needs.

Our owner, John Chamberlain, began his career in air conditioning and heating in 1978. His experience and education span residential and commercial applications, and he holds four master licenses in HVAC, electrical, gas fitting, and plumbing. That depth of knowledge helps shape the practical, detail-oriented approach our team brings to each project. We strive to provide prompt, reliable, and cost-effective service while finding solutions suited to the needs of our residential and commercial customers.

We also specialize in comprehensive geothermal heating and cooling services throughout Northern Virginia. Geothermal systems use the earth’s renewable energy to provide an energy-efficient, environmentally conscious way to keep homes, businesses, and industrial facilities comfortable throughout the year. Our experienced technicians help customers make use of this technology as part of their HVAC needs. From geothermal and conventional HVAC work to electrical, gas fitting, and plumbing projects, we bring extensive experience and a commitment to dependable service.