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Diamond Bar

Knowledgable and courteous

I appreciate that Jose Hernandez is very knowledgable, through and patient in explaining the system and in answering my questions.…

- Judy C.,
Posted on: 7/16/2018
Work done: Install closet furnace with media filter to remove indoor air pollutants. Includes matching air conditioner for cooling.

Service is excellent

Service is excellent. I did not appreciate a 25% increase in the contract price without so much as any notice…

- Sherrie N.,
Posted on: To Your Success 8/12/2016
Work done: Regular maintenance on central air conditioning.


Jose and Phil are exemplary employees who conduct themselves ina professional manner. Their promptmess is an asset, also. Peter is…

- Dario R.,
Posted on: 7/31/2015
Work done: Remove old system and replace with new Lennox Elite equipment. Includes relocating condenser to new, more convenient location.

Super Job!

Very positive experience. We were very pleased with the service. Tristan did a super job! He was polite, on time…

- Gerald N.,
Posted on: 5/29/2014
Work done: Replace thermostat with mercury-free digital programmable model.

Very courteous and professional.

Mario and Vicente were very courteous and professional throughout the job. Very thorough; nothing was left behind.

- Ray C.,
Posted on: 2/21/2012
Work done: Remove existing equipment and install new furnace and air conditioner. Add filtration and install new ductwork.

They are so responsible and kind.

The crew was knowledgable and professional. They worked fast and were active problem solvers anytime they encountered and obstacle.

- Hyunjoo K.,
Posted on: 9/27/2011
Work done: Installed new Lennox Elite air conditioning system with pleated media filter for improved home air quality. Remove all asbestos ductwork and install new ducts with fiberglass insulation.