Full Service of all the major brands of Heating and Air Conditioning Equipment, Rheem/Thermal Zone Dealer/Installing Contrator, Daikin Ductless Systems.


Honeywell Preferred Contractor. Wi-Fi Enabled Thermostats Honeywell ERV/HRV Ventilation Systems, True Steam Humidifiers, Whole House and "spot" type Dehumidifiers


Indoor Air Quality Products
With you and your loved ones in mind, we offer Honeywell 1 Year Media Filters, Electronic Air Filters, In Duct UV Light Systems.


Crawl Space Encapsulation and Conditioning


About Our Company

​Crawl Space Encapsulation and Conditioning

M.L. Building Technologies offers Service Agreements to help keep your HVAC system/s operating at peak efficiency. Industry experts all agree that proper seasonal maintenance is essential to preventing costly and frustrating "breakdowns". Give M.L. Building Technologies a call to schedule your seasonal service today! (302) 260-4228

Paul Ainsworth has been in business for just over 2 years with 11 years in the industry. ML Building Technologies is a solutions based Heating, Air Conditioning, Home Performance Co. Serving all of Sussex and Kent Counties in Delaware. Fully Licensed and Insured, we put the needs of the client first. Your Comfort is our number one priority! ML Building Technologies Heating and AC Service Repair Installations

M.L. Building Technologies is a Preferred Honeywell Contractor. We carry all the latest Honeywell Wi-Fi Enabled Thermostats. We also carry the full line of Honeywell "wireless" thermostats with the ability to install a thermostat anywhere without having to run new wires. You don't need to put up with a thermostat in an awkward or ineffective location any longer!

​Seasonal Service Experts

M.L. Building Technologies is your source for Crawl Space Encapsulation and Conditioning. A "closed", conditioned crawl space has been shown to increase home energy efficiency by up to 18%. Through the "stack effect" damp, moldy, mildew air can be drawn from the crawl space into the living space, very poor indoor air quality. If your family suffers from seasonal allergies, sinus infections, or have respiratory problems, clean conditioned crawl space could significantly help improve quality of life. If the HVAC system and ductwork is located in the crawl space, cleaning, encapsulating and conditioning the space can help extend the life of the equipment.

M.L. Building Technologies Installs Home Automation systems from Wink and Samsung. These systems are not just designed for home owner convenience. They can help with home security, by allowing a homeowner to remotely turn on outside lights, inside lights and landscape lights. Both the Wink and Samsung systems can control door locks, garage doors and security cameras, all from a smart phone or tablet. Wink now offers a flood/water detection system that senses water leaks and automatically shuts down an installed main water valve, saving the homeowner thousands of dollars in damage from flooding. Very affordably priced systems, maintained, installed and warrantied by Wink, Samsung and M.L. Building Technologies.

​Light Commercial Building Control Systems


​M.L. Building Technologies

For our Light/Medium Commercial Clients we offer Distech Control Systems. Distech Controls is the only true "open protocol" Building Automation system on the market. BacNet and LonWorks capable, M.L. Building Technologies can custom tailor a Building Automation/Control System to your needs, from controlling multiple rooftop HVAC units to managing exhaust fans, lighting and plug loads, Distech and M.L. Building Technologies has the solution for all your building controls needs!

​Indoor Air Quality Experts

Heating & Air Conditioning

For All Your HVAC Needs! ​     302-260-4228        

Monday-Friday 8 AM to 5 PM Saturday  8 AM to 12 Noon

M.L. Building Technologies offers Zone Controls from Jackson Systems. Jackson Systems Zone Dampers do not require a large "bypass" duct making them a very cost effective solution to the ordinary inefficient zone systems, from 2 zones all the way up to 9 zones, M.L. Building Technologies and Jackson Systems can solve all your zoning problems!

Home Automation