"WOW.
I thought my 30 year old redwood deck wasn't salvageable, but Rupert convinced me to do so.  He was very prompt & reliable & knowledgeable and everything went as planned.    A real pleasure to work with, especially if you prefer texting over e-mails!!
I thought it was going to need replacement, a cost of $20,000 using a wood/plastic composite.  I am glad I didn't spend all that money- I would have had a plastic deck (Trex )that would scratch/warp/stain/turn to plastic-dust ( according to reviews at http://www.consumeraffairs.com/homeowners/trex_composite_decking.html) 
Instead, I have a sturdy splinter free redwood deck and $18,000 still in my pocket.  Environmentally I saved as well, by 'fixing & reusing rather than buying/manufacturing plastics that would end up un-decomposed in a landfill one day.
If you want a facelift on your old deck- Summit Deck Doctors is the way to go.
If you think your deck is dying and needs to be buried & replaced, don't do so without asking Summit Deck Doctors to resuscitate it.
"

"Julio was punctual very professional and did a beautiful job of sanding and refinishing our deck. We had painted our deck with a thick paint which turned out to be a real mess. Thanks to Julio's sanding and refinishing we have a great new redwood deck. I am pleased and totally impressed with Julio's work he used an active vacuum to capture all the sanding dust which keep our yard and furniture very clean. I recommend Julio without any reservation he is a true profession craftsman."

"Cal Preserving did a great job on our very difficult to install Ipe (Brazilian Walnut) deck. I would definitely use them again."

"Very good! They were extremely thorough, very professional, showed up on time, very quick, and they were very clean."

"This company is the very best. My two old decks now look like they are new. The crew is very detail-oriented especially with the prep workâ -power washing and sanding â so the final staining is perfect. My windows were covered while they worked and everything cleaned up when they finished. Also, the price was very reasonable. I definitely recommend them!"

"Very easy to work with. I'd used them before but this time I got estimates from other contractors and was amazed how much more reasonable Cal Preserving was. The difference may be that the others pointed to additional steps that could be taken. Did Cal Preserving "miss" these things or recognize they weren't necessary--I'm inclined to believe the latter."

"Great experience using PurePower wash! Arrived at scheduled time, great personality and did an amazing job cleaning! Would use again!"

"Nice working with Jose. Great carpentry, great communications!"

"Fantastic job! I can't believe how bright and clean the deck and the surrounding areas look. It's clear that Blue Wave takes pride in their work and goes the extra step to please the customer. The windows have never looked better. Some are quite hard to reach and have not been cleaned in ages. They look brand new. I'm so happy with the expert and professional service provided by Indira and her team. I will definitely call Blue Wave again."

"They courteous and efficient. My Deck looks great!"