Quick Response And Honest Prices
AC Repair Services Serving Altadena, CA and the surrounding areas as of August 2026 - start this month right with 10% off, new customers only! Local, experienced, and detail-focused. Call (626) 244-2014 for a free, no-obligation estimate.
At D & M HVAC, we pride ourselves on delivering exceptional heating and cooling services to the Altadena community. With over 15 years of experience and a commitment to customer satisfaction, we're your trusted partner for all HVAC needs.
Experience the D & M HVAC difference today!
Schedule Service NowOur team of certified technicians brings expertise and dedication to every job, ensuring your HVAC systems operate at peak performance year-round. We take pride in our work and stand behind every installation, repair, and maintenance service we provide.
From routine maintenance to emergency repairs, our full-service HVAC company has everything you need to ensure your comfort in every season.
We understand that HVAC emergencies don't follow a schedule. That's why we offer round-the-clock emergency services to ensure your comfort and safety at any time. Our technicians are on standby nights, weekends, and holidays to respond when you need us most.
Our team consists of highly trained and certified HVAC professionals who stay current with the latest industry standards and technologies. Each technician undergoes rigorous training and continuous education to provide you with expert service on all makes and models.
We take pride in delivering top-quality work on every job, using premium materials and following best practices to ensure long-lasting results. Our attention to detail and commitment to excellence ensures that every system we install or repair performs optimally for years to come.
Your satisfaction is our priority. We go above and beyond to ensure you're completely happy with our services and the results we deliver. That's why we offer satisfaction guarantees on all our work and follow up after service to ensure everything is working perfectly.
Being based at 1961 Del Mar Ave keeps our response window short for the whole valley. A properly serviced system runs quieter, cools evenly, and stops pushing grit into living spaces. Doing it right the first time costs less for everyone, and that has been our standard for years. Newer builds near Altadena, CA still collect construction debris that throttles airflow from day one. Two-story homes in the foothill cities need longer runs and a different vacuum strategy entirely. Every technician at D & M HVAC is certified, background-checked, and trained on all major brands. We treat occupied homes as homes, not job sites, and leave them cleaner than we found them. Homes here run their cooling equipment nine months a year, so buildup arrives faster than owners expect. Familiar streets mean accurate arrival times, and we would rather be early than vague.
Honest air duct inspection pricing starts with a free estimate and no pressure whatsoever. Maintenance visits cost far less than the emergency repairs they reliably prevent. Written quotes list each item separately so you can see precisely where the money goes. New customers take 10% off their first booking, and we apply it without being asked twice. If a system genuinely does not need the work, we tell you and charge you nothing.
Santa Ana winds push a remarkable amount of grit through every open window each autumn. We work daily between Las Tunas Drive, Valley Boulevard, and the quiet streets north of Mission. Familiar streets mean accurate arrival times, and we would rather be early than vague. Being based at 1961 Del Mar Ave keeps our response window short for the whole valley. Crews reach Alhambra, Rosemead, and Temple City in minutes rather than routing across the county. Two-story homes in the foothill cities need longer runs and a different vacuum strategy entirely.
Doing it right the first time costs less for everyone, and that has been our standard for years. Shortcuts show up six months later, so we simply do not take them on any job. Detailed notes stay on file, so the next visit starts with real history instead of guesswork. We stand behind the work, and if something shifts afterward we come back and correct it. We treat occupied homes as homes, not job sites, and leave them cleaner than we found them. Every technician at D & M HVAC is certified, background-checked, and trained on all major brands.
Our air duct installation keeps San Gabriel Valley systems breathing clean through long, dry inland summers. Newer builds near Altadena, CA still collect construction debris that throttles airflow from day one. Older bungalows along Mission District streets often hide original ductwork nobody has opened in decades. Foothill dust drifts down from the San Gabriel Mountains and settles quietly inside return plenums. Stucco tract houses and mid-century ranches each need a different approach, and we adjust on site. A properly serviced system runs quieter, cools evenly, and stops pushing grit into living spaces.
HVAC System Cleaning, Air Filter Replacement, Air Duct Replacement, Air Vent Cleaning, Furnace Duct Cleaning, Air Duct Repair, HVAC Duct Cleaning, Commercial Air Duct Cleaning, Duct Sealing, Furnace Tune Up, Mini Split Cleaning, Coil Cleaning, Condenser Coil Cleaning, Indoor Air Quality Service, Dryer Vent Cleaning, Heating Duct Cleaning, Air Duct Inspection, Emergency Duct Cleaning, Air Duct Installation, Blower Motor Cleaning, Air Duct Sanitizing, Evaporator Coil Cleaning, Air Handler Cleaning, AC Duct Cleaning, Air Duct Cleaning and many more tasks.
91001, 91003, 91801, 91755, 91770, 91780, 91108, 91030, 91006, 91007, 91101, 91104 and others too.
Central Altadena, Janes Village, Meadows Area-Al2, Christmas Tree Lane Area, Lake Avenue Corridor-Ad, Mariposa Street Area, Farnsworth Park Area, Chaney Trail Area, Fair Oaks Corridor-Ad, Woodbury Area-Ad, La Vina Area, Millard Canyon Area and much more.
Call (626) 244-2014 today for a free, no-obligation quote in Altadena, CA. Open 24 Hours a Day, 7 Days a Week.
Call NowLearn more about our specialized HVAC services designed to keep your home or business comfortable year-round.
Keep your home or business cool and comfortable during hot seasons with our comprehensive air conditioning services. Our expert technicians ensure efficient cooling, reduced energy costs, and extended system life.
Ensure your property stays warm during colder months with our complete heating system services. We work with all types of furnaces, heat pumps, and boilers to provide reliable warmth and efficiency.
Breathe cleaner, healthier air in your home or business. Our indoor air quality services address allergens, pollutants, humidity issues, and more to create a healthier indoor environment.
Specialized HVAC solutions for businesses of all sizes. We understand that commercial spaces have unique requirements, and our team is equipped to handle even the most complex commercial HVAC systems.
We're here to help with all your HVAC needs. Contact us today for reliable service and expert solutions tailored to your comfort requirements.
1961 Del Mar Ave
San Gabriel, CA 91776
United States
Open 24 Hours
7 Days a Week
Including Holidays
For fastest service, please call us directly.
We prioritize emergency calls.
Serving the Greater San Gabriel Valley and surrounding areas from our central location.
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