Business Details
50+ Years
experience
Emergency
services
Trusted HVAC & Plumbing Services in Washington DC
Founded in 1912, John G. Webster has established itself as a premier provider of HVAC and plumbing services in the Washington DC metropolitan area. Our century-long commitment to excellence is rooted in a philosophy of hiring top-tier professionals, providing rigorous training, and equipping our team with cutting-edge technology to deliver superior service. We specialize in residential and commercial heating, cooling, and plumbing solutions, serving Maryland, Washington DC, and Northern Virginia with EPA-certified expertise. Our preventive maintenance agreements ensure long-term system reliability while our 24/7 emergency services provide peace of mind.With generations of experience serving five distinct customer generations, we maintain the highest industry standards through continuous technician education and ethical business practices. Our comprehensive offerings include system installations, repairs, energy audits, and eco-friendly solutions that combine cost savings with environmental responsibility. Through transparent pricing models and industry-leading financing options, we make essential home comfort services accessible to all our clients.
Services
HVAC Installation
Plumbing Repairs
Service Agreements
Emergency Services
Energy Audits
Details
- Year established: 1912
Highlights and features
- We offer 100+ years of combined HVAC and plumbing expertise
- Our technicians are EPA-certified and background-checked
- We provide 24/7 emergency service with no overtime charges
- Our service agreements include annual system inspections
- We use upfront pricing with no hidden fees
Associations and certifications
- CBE Certified
- EPA Certification
What people say
Excellent service
Professional technicians
Prompt response
Thorough workmanship
Knowledgeable staff
Services
HVAC Installation
Our EPA-certified technicians install top-brand heating and cooling systems for residential and commercial properties. We offer energy-efficient options that reduce utility costs while maintaining optimal comfort. All installations include comprehensive system checks and manufacturer warranty registration to ensure long-term reliability and customer satisfaction.
Plumbing Repairs
We provide 24/7 emergency plumbing repairs for leaks, clogs, and system failures. Our rapid response team handles residential and commercial issues including pipe repairs, drain cleaning, and fixture replacements with minimal disruption to your property.
Service Agreements
Our preventive maintenance agreements include annual system inspections and priority service scheduling. These plans help avoid costly breakdowns through regular HVAC tune-ups and plumbing system checks that maintain optimal performance and extend equipment lifespan.
Emergency Services
We offer round-the-clock emergency response for urgent HVAC and plumbing issues. Our technicians provide immediate solutions for heating failures, water leaks, and cooling system emergencies without charging overtime fees for after-hours service.
Energy Audits
Our energy audits identify efficiency improvements that reduce utility costs. Certified technicians evaluate system performance and recommend upgrades that qualify for tax credits under the Inflation Reduction Act, combining environmental benefits with financial savings.
Questions
What HVAC services do you offer?
We provide complete heating and cooling solutions including system installations, repairs, maintenance agreements, and 24/7 emergency services for residential and commercial properties.
Do you offer plumbing services?
Yes, we offer comprehensive plumbing services including repairs, installations, drain cleaning, and preventive maintenance for residential and commercial clients.
What areas do you serve?
We serve all of Maryland, Washington DC, and Northern Virginia with prompt, reliable service from our local facilities.
Are financing options available?
Yes, we offer industry-leading financing programs to help customers fund necessary HVAC and plumbing projects.
Do you provide emergency services?
Yes, we offer 24/7 emergency service with no overtime charges for urgent HVAC and plumbing issues.
Are your technicians certified?
All our technicians are EPA-certified, undergo extensive background checks, and receive ongoing training in the latest technologies.
