Ductwork Installers in Sunnyvale, CA

"As a contractor I have used Hernesto several times, his crew are very professional, always on time and provide the highest quality of work."

"The people they send to work know professionally their job, Iâ  m very happy with their work quality and they completed their job as promised."

"Thorough and efficient, crew was polite and courteous. Owner was right in there working and very detaile oriented."

"Reasonable price. Very professional team. Work done on time."

"Great job from the top to the bottom. They're professional and know what they're doing. I really trust them!!! A++++++++++"

"Very professional. Rigo did an excellent and fast job to install a duct above a bathroom ceiling fan in our house."

"Friendly, knowledgeable, reasonably priced"

"I give them 5 stars for: 1) The estimator suggested a good Lennox furnace: not the most expensive and at a reasonable installation price; 2) Fast delivery: They came the same week to replace the old furnace by the new one; 3) The crew (3 people) was very knowledgeable: everyone knew what to do and they worked in parallel; 4) When I pointed to a small problem after the installation, A-1 Heating and Cooling was quick to react and solve the problem to my satisfaction; 5) I have the new furnace working for one week and so far everything works fine, including the air quality that is much improved (with a MERV-11 filter). Finally, I already registered the furnace with Lennox so I can forget about this project and dedicate my time to other things."

About us: "We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business."