BPP

Reviews

• DV

  Diane Vollering

  Oct 2, 2025
  5.0
  Curtis is the best!! We completed a whole house mini split system with him in our major home renovation (8 units replacing an old HVAC ducted system). He is very knowledgeable, honest, friendly, and hard working. We had many bumps along the road with existing conditions but he helped us problem solve solutions until everything was just right. Thank you Curtis!
• NG

  Nicole Green

  Jun 6, 2022
  5.0
  Curtis and the entire BPP crew did an awesome job installing an entirely new ducted mini split system in our home as well as a ductless system in our loft room. They removed old attic insulation and sprayed in new insulation along with foam air sealing. They even went above & beyond by removing our old wall furnace and used the space to run refrigerant lines there instead of making new holes in our walls for access. The crew was very personable, worked very neatly and were considerate of our home throughout the job. Curtis was great at explaining things and answering all of our questions. They were always on time in the morning and had the whole house cleaned up by the time we got home from work. *and very important to us, the loved on our dogs when they were around :)
• BM

  Brian Matthews

  Jan 17, 2021
  5.0
  AC / furnace upgrade, new Ducting, sealed entire house, added bath fan. Mason BPP was a great company to work with, they are professional, punctual, and overall the work performed was excellent. After having three bids we decided to use Mason BPP based on Curtis overall knowledge, assessment and pricing of work to be performed. We thought that he gave us an honest price and was also very helpful in locating some key problems in our home that would make the comfort of our living situation much better. Curtis did an overall assessment and actually gave us multiple options in multiple price ranges which was very helpful and letting us decide which one to choose for our budget. I want to do a longer-term review based on how the changes have affected our home. 10 months have passed and we are just thrilled with the results, the house stays much cooler in the summer and much warmer in the winter, also with the sealing of the house our power bills have been significantly lower than the previous years. I would definitely recommend Mason BPP to our friends and family and look forward to doing work with them in the future.
• VV

  Valerie

  Sep 20, 2020
  5.0
  After carefully reviewing three different estimates and making sure to understand what we were purchasing when replacing our HVAC system a couple of years ago, we were most impressed with Mason BPP and Curtis' knowledge and patience in explaining and guiding our purchase. We are so happy we hired them, the product is top notch as expected, the whole installation crew was very professional and respectful of our space, it was an overall very pleasant experience. Fast forward two years, and last Sunday our AC decided to keep running uncontrollably, turning the house into an iceberg. After shutting off the breaker we called Curtis, who called us back an hour later (on a Sunday!!), came over on Monday, and solved the problem on Tuesday- a faulty Nest thermostat that needed to be replaced- all under warranty. We so appreciate Curtis/Mason BPP's continued help, and figured the best way to thank them is to encourage anyone looking for their services to hire them without reserve!
• CC

  Carolyn Cole

  Jun 10, 2019
  5.0
  I had long deferred upgrading my ranch-style home for better energy efficiency and I knew I had a lot to do. My house was built in 1952, and still had its original single-pane aluminum windows and no ceiling or wall insulation. The house was always as cold or as warm as the outside air, and living in the hills near San Francisco Bay, the outside is chilly much of the year – so was the house. I attended a seminar sponsored by Contra Costa County and was fortunate that one of the speakers was Lowell Mason, president-owner of Mason BPP (Building Performance Professionals). That was my lucky day. I was able to hire Lowell and his company to perform an energy audit, weigh the benefits of various energy upgrades, and watch them proceed upgrade windows and HVAC, doing excellent, on-time work. I worked primarily with Lowell, the owner, or Curtis Wineteer, Mason BPP's HVAC specialist. They advised on window replacement, a replacement heater, and other details to support energy savings, including small items such as a fireplace door that seals and a double-flap, energy-efficient dog door design. Planning upgrades in stages, I was delighted to have them make substantial, but selective energy upgrades to everything the audit indicated might help. Each job they completed made me eager to take on another; this was due to their unflagging courtesy and consideration of me and my comfort throughout the job. All pricing was up-front and clear and did not change as the job progressed. This was obviously because they really know their products and can accurately anticipate costs. Their charges on all materials and equipment were consistently fair. They returned when I called to request adding an air conditioner. I hope to have another job for Mason BPP, Inc. in the future, as I cannot imagine finding more experienced, on-time, courteous, professional workers.

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