D and L Mechanical Services | Trusted HVAC Company in Fredericksburg, VA Since 2000
Comprehensive Air Conditioning Service Fredericksburg
We specialize in top-notch Air conditioning service in Fredericksburg to ensure your home stays comfortable year-round.
D&L Mechanical Services | Trusted HVAC Company in Fredericksburg, VA Since 2000
History of Our Company
About D&L Mechanical Services
Excellence has been our hallmark since 2000.
I reached a breaking point in 2002. After years of witnessing dishonest practices and poor workmanship in the HVAC industry, I knew homeowners deserved better. That’s when I decided to create the kind of heating and cooling company I always wished I could work for—one built on honesty, integrity, and genuine professionalism.
I founded D&L Mechanical Services, named after myself, Darren Billington, and my wife Leisa, with one clear mission:
Deliver reliable HVAC service with total transparency and treat every customer like family.
Our Story & Values
Running our company in Fredericksburg, Virginia has been an incredible blessing. We love our community and the homeowners we serve, and we’re committed to providing high-quality HVAC service backed by the values we live by every day:
Honesty before profit
Integrity in every recommendation
Quality workmanship with no shortcuts
Family-first treatment for every customer
While we take pride in our service, one thing has always bothered me: the level of misleading information still fed to homeowners by some contractors. I saw it years ago, and it continues even today.
That’s why I decided to do more than just run a business—I wanted to protect homeowners from being taken advantage of.
Why I Wrote My HVAC Book
There was no guide for homeowners to understand HVAC systems or how to choose a trustworthy contractor—so I wrote one. My book gives you real, honest tools to protect your home and your wallet, including:
How to choose a reputable HVAC company
How to avoid scams and common contractor tricks
How HVAC systems work in simple, clear language
How to make confident, educated decisions
I wrote this book so you can finally get the truth—not sales pressure or misinformation.
Our Commitment to You
At D&L Mechanical Services, we believe you deserve peace of mind. Whether you're repairing, replacing, or maintaining your HVAC system, our team works with one goal:
Deliver the most honest, reliable, and high-quality HVAC service in Fredericksburg—every time.
Our indoor comfort experts are ready to help today!
Our Advantages
Heating & Cooling Services is your single source for a complete range of high-quality services, including design/build, engineering, construction, start-up, commissioning, operation, and maintenance.
24/7 Emergency Services
Free Estimates
Low Price Guarantee
Licensed & Insured Experts
Fast & Reliable Response Times
Heating & Cooling Services
No matter what type of system or setup you have in your home, you can count on the our professional team to provide you with the services you need and deserve. Our technicians have the skills and knowledge to repair and maintain any type of heating or cooling system.
In-floor Radiant
Air Purification
Hot Water Heater
On Demand Heater
Indoor Pool-dehumidifiers
Maintenance Contracts
Split Systems
Ductless Mini Split
Geo Thermal
Duct Cleaning Services
Humidifiers
Zoning
Company Mission & Vision
Company Mission
To deliver the most professional heating and cooling service available by way of an unmatched client experience, resulting in the highest levels of respect from our community and a rewarding environment for our employees to succeed.
Company Vision
To raise the bar in providing quality service.
Our Values
We strive for excellence,
Do You Need Help with Air Conditioning & Heating Maintenance
Do You Need Help with Air Conditioning & Heating Maintenance
Contact us – our technicians are ready to help you solve that issue.
Contact us – our indoor comfort experts are ready to help you solve that issue.
Starting D and L Mechanical Services to provide home owners with solutions to their indoor comfort problems.
Leisa Billington
VP, Operations and Finance
Has 20 years of service in the finance world, providing customers with solutions to their needs.
Brandon Billington
2nd Generation Service Consultant
Brandon grew up helping Dad in the HVAC trade learning, has been in the field servicing customer and loves it.
Francisco Barahona
Service Consultant
Worked as an installer for 10 years
Neva Sasser
Customer Service Representative
Creative problem solver and have a very "can do" attitude despite a difficult job.
Why Choose Quality?
Our name says it all. We’re committed to quality in everything we do. The quality of our work lies in our craftsmanship and experience. Our technicians are indoor comfort specialists who take pride in the work they do. We’re not satisfied until our customers are satisfied.
Quality influences every part of our business, including: