About Us

Tim Zickuhr

Tim Zickuhr

Owner/Operator

We guarantee that each customer will receive service with the highest degree of quality and professionalism.

Our Mission:
It doesn’t matter whether you are commercial, industrial or residential, our mission is to provide you with a level of service that not only meets but exceeds your expectations.

Service Area:
Contra Costa County
Alameda County
Santa Clara County

Competitive Pricing:
R12 provides competitive pricing, referral, rewards, and commercial billing.

Accepted Payment Methods:
Check, Zelle, Venmo, Pay Pal & invoice billing

Our Story

R12 Window Cleaning was established in 2012
My wife and I have a real desire to bring customers satisfaction back to the level it should be. We are not in this for any other reason then to be known as the go to guys. Our goal is keeping customers happy and willing to refer us to friends and family.

What We Do

Window Cleaning

At R12 Window Cleaning, we specialize in cleaning windows on everything from residential homes to large commercial buildings. We clean both inside and out, tracks and screens for excellent results. We also handle problem windows that require scraping to remove paint, stucco, hard water, and other tough build up. It is our commitment to use only the best quality cleaning products and cleaning techniques so that is why we have chosen to use squeegees and other specialized tools, including de ionized water ( a form of purified water ) as part of our cleaning tool-kit. With R12 you can be assured a streak free shine without any residue that can be left behind from the traditional window cleaning method of paper towels or spray chemicals. Call R12 Window Cleaning at 408.372.7712 for a free estimate (If your windows require extra attention please let us know during your free estimate.)

Gutter Cleaning

R12 Complete Gutter Cleaning Service starts with blowing off roof debris to help prevent further debris build up in your gutters. We then continue and remove all of the debris currently in your gutter system using specialized hand tools. Once the debris are removed from the gutter system, we finalize our cleaning by flushing the gutters with water to remove any remaining sediment and to verify that the gutters and down spouts are flowing at 100% efficiency. Any areas that are not flowing correctly will be inspected and we will remove any missed/hidden debris or build up. R12 guarantees customer satisfaction or we will come back and clean your gutters again.

Bird Abatement

R12 provides bird abatement.
To schedule an appointment call Tim at 408.372.7712

Outdoor Lighting Service

The newest craze is Smart Lighting for programmable automated lighting. R12 Outdoor Lighting Service will provide you with a head start on your home lighting project by doing the hard work of hanging them up for you in the desired locations.

Pressure Washing

R12 Pressure Washing Service offers deep cleaning of your designated surface (cement, driveways, decks, docks, and sidewalks) to remove all sorts of grime build-up or to strip down a surface. From a mild low pressure cleaning for exterior walls to a high pressure surface stripping to prep for a paint job, R12 has the right nozzles, attachments, and detergents to get the job done right using our interior and exterior pressure-washing equipment. Call R12 at 408.372.7712 to schedule an appointment today. We guarantee our work.

Solar Panel Cleaning

R12 Solar Panel Cleaning Service for your home or business utilizes a deionized water and brush system that gets your solar panel glass surface crystal clear. With delicate care we remove all of the hard water, bird droppings, pollen, dust, sap, mold, and other grime and debris. It is this build up that prevents or reduces light from penetrating through the glass to the solar cells, thus reducing energy capture and system efficiency. However, after an R12 Solar Panel Cleaning, energy efficiency can improve from 6 to 15 percent. R12 guarantees customer satisfaction or we will come back and redo our work.

Excellent
R12 Window Cleaning4.9
Based on 64 reviews
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Becky Vella
Thank you so much for the amazing window cleaning! Our place looks beautiful. You were so professional, careful with our belongings, and incredibly patient with us. We truly appreciate your hard work!

Thank you again for the wonderful service,

Mario and Becky
Response from the owner:Thank you Mario & Becky for taking the time to write a review. Im so glad I was able to meet your expectations. It is always my goal. And actually working with you both was great.I really enjoyed it. And seeing both spring clean as I did the windows was so cool. I really appreciate you choosing R12.
Laura Pierce
If you want high quality, dependable window and solar cleaning service R12 is the company to go with! I’ve used them for several years and am extremely happy with them. Tim responds quickly to requests and is a great communicator.
Response from the owner:Thank you Laura for taking the time to write a review. I really appreciate your feedback. And im am really happy I meet uour expectations
marcie kapell
If you need your windows or gutters cleaned Tim with R12 is your guy! I’ve been using his services for years and I’m 100% satisfied every time!
Response from the owner:Thank you Marcie for taking the time to write a review. And thank you for mentioning how long.
Gloria Cox
Tim with R12 has been cleaning my gutters and solar panels for years and I have been very pleased with the service. I just had my patios pressure washed and windows cleaned inside and out for the first time and they look terrific. I definitely recommend this company.
Response from the owner:Thank you Gloria for taking the time to write a review. I also appreciate you mentioning the services provided.
Bill Whitaker
Great work, professional, and the most important part…. Clean windows, tracks, and screens.

Thanks Tim.
Response from the owner:Thank you Bill for taking the time to write a review. I really appreciate you mentioning the service you received. And that i was able to meet your expectations.
Claude Jones
Great job, efficiently done.
Response from the owner:Thank you Claude for taking the time to write a review. I appreciate your feedback.
Shannon Foster
5 stars all the way. He came and cleaned my gutters before winter and he was so fast and efficient and we had no worries all winter!! 10 out of 10!! Definitely recommend Tim!! So nice and so professional!
Response from the owner:Thank you Shannon for taking the time to write a review. And thank you for mentioning what service I provided. Oakley is better with clean gutters.
Rob Cooper
Great job ! About 10% increase in energy after the cleaning.
Response from the owner:Thank you Rob for taking the time to write a review. 10% increase after cleaning Solar panels is great. You should be able to benefit from it through out the summer.
Lori Hamblin
Tim did a great job on exterior and interior windows… He was prompt and kept in touch by texting… We are very satisfied customers… Thank you Tim for a job well done..
Response from the owner:Thank you Lori for taking the time to write a review. I certainly appreciate you mentioning you appreciate the communication between us. It is something I value as well.
Jim Passanisi
Tim provides a vital and friendly service keeping our solar and windows clean about three times each year. We always know the work gets done right. Scheduling is easy using texting and keeping each other informed. The cost for service is reasonable.
Response from the owner:Thank you Jim for taking the time to write a review. I have enjoyed providing you services over the years.
Thomas Nelson
Tim did an amazing job on a bird abatement and gutter cleaning service at my house. Very thorough in his craft, professional, friendly and honest. Won’t go anywhere else when it comes to the services he offers!
Response from the owner:Thank you Thomas for taking the time to write a review. I certainly helps me in my craft. I was also glad to helped with your pigeon issue. Brentwood is definitely a favorite spot for them.
Michael Powell
Tim is fast clean and my windows look like new every time he does them . You absolutely can't go wrong if you use him . Good job Tim
Response from the owner:Thank you Michael for taking the time to write a review. I really appreciate your feedback. Im also honored for your referral
Dana Shaw
I've been 100% satisfied these past 8 years with R12 Window Cleaning, Solar Panel cleaning & bird abatement. Tim is professional, always on time, considerate of my beautiful yards & home interior when he's here.
I highly recommend R12 for all your window, gutter, solar panels & bird abatement needs. 5 *****
Response from the owner:Thank you Dana for taking the time to write a review. I really appreciate you being so detailed. I love serving our community of Brentwood
Kathy Gilmore
Tim with R12 always does a great job for me!! Window and gutter cleaning are superb!
Response from the owner:Thank you Kathy for taking the time to write a review. It helps me develop a consistent work ethic
Patricia Reagan
Tim has done a spectacular job cleaning my windows for 3 or 4 years. He makes time available for my job quickly, arrives on time and has a special system to keep the water contained, just enough solution to do a clean and sparkly job. He has such a great personality, I enjoy having him in my home. The fee is very reasonable so I just want everyone to know Tim is Terrific!
Response from the owner:Thank you Patricia for taking the time to write a review. And thank you for your kind words.
John Byrne
R 12 window cleaning Did a great job on my home. If you need your windows cleaned, I highly recommend them. Communication was a 10 punctuality was a 10. Tim was great went above and beyond.
Response from the owner:Thank you John for taking the time to write a review. It not only helps me to meet my clients expectations. But it also lets others know they can receive the same work performed.
Shelley Arnold
Tim cleaned our gutters. He did an incredible job. The gutters were very dirty and Tim cleared them out. I was shown pictures of before and after cleaning which was very professional. Thank you Tim!
Response from the owner:Thank you Shelley for taking the time to write a review. I truly appreciate the feedback from my clients. It has helped me and continues to help me focus on my craft.
Fran Barbanica
We are so pleased with the job Tim did on our windows. I didn’t realize how bad our windows were until Tim was finished. They are so clean. I really appreciated his professionalism between texting appointment reminders and keeping me updated on his arrival time. I highly recommend R:12 Window Cleaning.
Response from the owner:Thank you Fran for taking the time to write a detailed review. What you value is important to me and helps me develop a good work practice. Thanks again
Mike Hornig
I contacted Tim on 5/11 after our previous window cleaner didn't show up (on the same day) for an appointment we had scheduled months ago. I told Tim we needed help ASAP because we were hosting a party on 5/20 (yesterday). Tim made it happen by getting us on the calendar for this past Saturday afternoon. Our windows now look fantastic and it was a pleasure working with Tim. I would be very comfortable recommending R12 to anyone in need of his services. Moving forward we plan on using R12 for our window cleaning and other services they offer.
Response from the owner:Thank you Mike for taking the time to write a review. I really appreciate it. Im also have been able to help meet your expectations and schedule
Claudette S
R12 has been cleaning my windows yearly for about a decade. The windows are always spotless, and they keep the work area clean. It is not an easy commute to my house, and I appreciate that Tim is always courteous and keeps me informed about the arrival time.
Response from the owner:Thank you Claudette for taking the time to write a detailed review. I really appreciate the fact I have been providing window cleaning for so many years.
Shawna Stroben
We recently used R12 window cleaning service and were very impressed with the results. Tim
arrived on time, worked efficiently, and paid close attention to detail. Our windows look spotless inside and out, and the whole house feels brighter. Tim was very professional, courteous, and respectful of our property throughout the job. Pricing was fair, and the quality of work exceeded expectations. We would definitely recommend him to anyone looking for reliable and high-quality window cleaning services.
Response from the owner:Thank you Shawna for taking the time to write a detailed review. My clients feedback is vital to me. Im so glad I meet your expectations.
Elisabeth Cruickshank
Tim and his team did a great job power washing and treating our roof, cleaning the solar panels, and cleaning inside and outside windows, including the tracks and screens. They are very professional, thorough and friendly. Highly recommend!
Response from the owner:Thank you Elisbeth for taking the time to write a review. I really appreciate you sharing your experience. And meeting your expectations are vital to me. Thanks again
Laura Simpson
Tim did a great job in cleaning my solar panels and windows inside and out. Shows up on time and is very professional. Will definitely use his services again.
Photo from customer review
Response from the owner:Thank you Laura for taking the time to write a review. Your feedback is vital to me. Helps me develop into meeting my clients expectations
Sue Matt
Tim did an amazing job on our windows (inside and out), solar panels, and gutters. Because we bundled all 3, he gave us a discount. This is the second time that Tim cleaned our windows, and I highly recommend R12. Hardworking. Thorough. Kind.
Response from the owner:Thank you Sue for taking the time to write a review. And being specific. It helps others see the benefit of combining services. And it definitely helps me focus on the most important things. Reaching clients expectations.
Laura Nelson Real Estate Team
Amazing job for solar cleaning! Efficient, and good quality work. Highly recommended!
Response from the owner:Thank you Laura for taking the time to write a review. I certainly keeps me focused on meeting my clients expectations.

Testimonials / Comments

” 100% Recommend this company!
Gutter, window cleaning, Christmas lights, you name it! “
Laura Nurisso von Savoye.

” Great job Tim, y’all are pros! “
Robert Hosey.

” Awesome job!!!
You did an amazing job on our home. “
Deanna Otero.

” R12 works above and beyond!
Family-owned business and provided the best service.
R12 not only takes care of their customers but is also involved in their community. “
…Brentwood Community.

Contact R12 Window Cleaning

Phone

(408) 372-7712

Address in Brentwood

R12 Window Cleaning in Brentwood
720 Crocket Drive
Brentwood, CA 94513

Email

tim@r12windowcleaning.com