Independently Rated Highest in Quality
Originally Earned:
December 2011
We declare that Trees Company HAS QUALIFIED for and continues to meet the Ongoing Research and Rating Requirements for Diamond Certified® status.
Certificate #1796
(415) 967-3053

Trees Company's technicians are experts in maintaining tree health.

Trees Company offers a wide range of tree care services to residential and commercial clients throughout the Bay Area. In addition to specializing in aesthetic pruning, the company can plant new trees, remove old trees, and arrange for a certified consulting arborist to provide reports and tree care management.
Owner Christopher Altman established Trees Company after spending several years as a gardener. He decided to get ISA certification and focus his expertise on tree care. “I came to understand that caring for trees is work that impacts several generations, and that really made me feel like I was doing something positive for my community,” he remembers.
Trees Company emphasizes the importance of communicating clearly with its customers throughout every step of their tree care projects, from educating them about their pruning options to offering customized consultations and guidance. “We use our in-depth knowledge to do what’s right for each particular tree,” says Mr. Altman. “Sometimes creating a better view will affect the health of a tree, so we make sure our customers have all the necessary information before we start any work. Visit our website, treescompany.net. My arborist blog contains many before and after photographs, useful information about tree health, and stories about what it’s like to be an arborist.”

Company Philosophy

“Our business approach is based on three principles: honesty, integrity and efficiency. We want our customers’ trees to maintain their health for a long time, and our services are designed to educate them on how that can be accomplished.”

Serving the Bay Area

Aesthetic Pruning
Crown Reduction
Thinning
View Pruning
Restoration Pruning
Hedge Trimming
Root Pruning
Tree Selection & Planting
Tree Removal
Stump Grinding

Comparative Summary

Maintaining customer satisfaction is a crucial aspect of any business, but it’s even more important for tree care companies that have earned the prestigious Diamond Certified award. For Trees Company, achieving and maintaining high levels of customer satisfaction is dependent on two important factors: customer interaction and education. “We talk to our customers, determine their exact...

Frequently Asked Questions

Q: How can I tell if my tree is sick?
A: "Unfortunately, there’s no single list of indicators to tell you if your tree is sick. Every species is different and exhibits different stress indicators. If you call us for a consultation, we’ll be happy to explain the signs of...
Q: Are healthy trees safer than sick trees?
A: "They may be safer in some circumstances, but that doesn’t necessarily mean they’re safe. Even a seemingly healthy tree can lose a limb or topple in a storm. If the root system or base of the tree is damaged or compromised, you wo...
Q: When is the best time to prune a tree?
A: "It really depends on the type of tree. In general, we like to prune fruit trees twice a year: once in winter and once in summer. However, some types of trees are best pruned at a particular time. For example, pines are less susceptible to pi...

Industry Info

When it comes to tree care, there isn’t a lot you can do yourself.
Healthy trees don’t need much care. Pruning is skilled and dangerous work that’s best left to professionals. According to Christopher Altman, owner of Trees Company in San Francisco, you don’t need to do much for established trees...
Findings based on statistically reliable research from 66 surveys

Customer Satisfaction

Survey Question: On a scale of 1 to 10 how satisfied were you with the quality you received?
Chart.

Company Credentials

Workers Compensation
Liability Insurance
License Verification
Business Practices
Current Complaint File

Customer Loyalty

Survey Question: If you needed this product or service in the future, would you use this company again?
Chart.
100%
n = 66

Diamond Certified Qualification

Based on 66 customer surveys, we declare
Trees Company
has passed all rating steps and has earned
The Diamond Certified Award
No. 1796
Continuously qualified since December 2011.
David Pak
Director of Ratings Research
American Ratings Corporation

Verbatim Survey Responses From Only Verified Customers

Dick S. Verified Customer Name
"We asked for a bid and he submitted it. We liked the fast response. He's been great both times we've used him."
Research conducted by American Ratings Corporation. Ratings Methodology

Diamond Certified® Video Profile

See video

Company Capabilities Table

Trees Company
(415) 967-3053
DCID4157860464

Mon – Fri: 8am – 5pm
Sat: 9am – 4pm (Estimates Only)

Serving the Bay Area

Christopher Altman
10
5
International Society of Arboriculture (ISA) Certified
961420
Liability Insurance, Worker's Compensation
Better Business Bureau, Tree Care Association (TCIA)
2008
Tree Care and Arboreal Services, Aesthetic Pruning
200
Residential
1-Year on Tree Plantings
San Mateo Tree Service

Photo & Video Gallery

Survey Responses For

Trees Company

Trees Company: Average 9.4 out of 10 based on 66 unique customer surveys of these open ended questions.
Dick S. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Christopher is a very nice guy. He's easy to work with."

"We asked for a bid and he submitted it. We liked the fast response. He's been great both times we've used him."

A. J. C. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Christopher is very reliable and he does beautiful work."

"The part I liked best was how nice the tree looked after Christopher was finished. "

A. B. A. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They're excellent. They arrived promptly, worked efficiently, and they are smart and fun."

"The quality of their work is great. I liked that I could ask questions and no question was too dumb. I like trees. I am the type of person who wants to learn more and it was just a great experience for me. "

Allison K. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Christopher does very quality work at reasonable prices."

"Chris is very professional and easy to deal with. "

Angel C. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They get in there and do the job. It seems like they work without wasting any time at all. They are very professional and they do a great job. "

"They never stop. They just keep on going. I think they do a pretty good job. "

Anna C. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"He was very efficient and very good at what he did. "

"He came right out, responded right away, and did a terrific job for me."

Arnold W. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They did good work."

"They were very helpful."

Belinda L. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They are very professional and they provided excellent service."

"I felt my trees were in good hands. I had no worries about going ahead with the work to be done. Christopher offers a very reasonable price for what he does too."

Bill P. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"The owner was very knowledgeable, showed up on time, was courteous, and recognized my tree's problem. He provided options, was thoughtful, and was interested in my project. "

"Chris's knowledge of trees, and their diseases gave me confidence in having him do the initial work. I feel confidence in having him come again to do more tree projects. I'm getting ready to call him again for another tree project."

Bob P. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Christopher was really nice and I enjoyed working with him. "

"He was prompt, quick on the job, and it was well done. I had no complaints at all."

Carrie S. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"He was very conscientious and he did everything far above my expectations."

"I was more than thrilled with the work, the zero mess. He and his crew were very friendly and professional."

Charitine D. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"It is so obvious how much they love trees and doing their jobs. I recommend them to everyone."

"They love trees. They are very careful in their work and very detailed. They are artists. They are very nice, conscious of the environment, and they have environmental concerns and respect. They are also very careful of the property and plants around the trees and clean up after themselves at the end too. They are just wonderful in all respects. I am happy to use them and to recommend them to others every chance I get. It is clear they have a vision, both aesthetic and environmental. They charge very fair prices with no hidden charges either. "

Charles L. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"He was very friendly, easy to work with, and he satisfied all my tree needs. "

"He was competent and he gave me a good price. He was willing to work with me and adjusted his price to match a lower bid I had gotten."

Charlotte F. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Chris was friendly, efficient, and a joy to work with."

" I liked the fact he was willing to work with us and did such a great job. "

David H. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"He's very detailed. He knows what he is doing and does it quite well."

"He's very professional, a very good pruner, and he knows exactly what it means to thin trees and treats the trees with great respect. "

Dawn L. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Chris is very professional and knowledgeable. He gives instructions for what owners need to do, should do to keep the trees healthy and thriving. He is very efficient, personable, friendly, and working with him is just a good experience. "

"I just used him a second time because I trust that he knows everything about trees. I feel confident in his knowledge and his abilities. "

Donna K. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"I give them a '15'. They are extremely knowledgeable, professional, efficient, and they do absolutely terrific work on all my trees. "

"Chris is very artistic. He cleans up after himself. Overall, he does a wonderful job at very reasonable prices."

Ed M. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They are great and professional. I use them regularly. "

"They come through for me exceedingly well every time I call them out. "

Elisa W. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"I got a very good price for the job that they did. "

"Of all the bids I got, they gave me the best job at a fair price. I was quite happy with them and would call them again. "

Eric U. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Chris does a fantastic job with my trees."

"Chris is prompt, fast at his work, and efficient. The trees look great after he's done. "

Faith S. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"He leaves the trees looking as natural as possible. I truly appreciate his concern and caring for the trees. "

"He does such a great job. I like to recommend him to others too."

Florette Y. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Chris is trustworthy, conscientious, and he did great work. His price was quite reasonable."

"I really appreciated that he came right over that night after working all day, even though he was tired. He gave me an estimate and then came the very next day and did the job while I was at work. It was just absolutely perfect. "

Gene R. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"His honesty, integrity, abilities and knowledge are why I would use him again. I recommend him to others. "

"He was professional in every way and did great work."

George B. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Chris knows what he is doing when it comes to all things trees. "

"The quality of their work stands alone. They are professional in all respects."

James M. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Chris is absolutely the best arborist in the city. "

"I have the best looking street tree on my block. Chris is friendly, professional, prompt, efficient, and I am just glad to have found him. "

John K. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Chris really loves trees. He is very interested in making it very nice, so I really recommend him."

"The care he took with the trees and the clean-up afterward, these are the things I liked best about his services."

Judy G. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Chris is a nice guy and shows up on time. He is reasonably priced."

"Chris answers all your questions and he is very responsive to customers' needs and concerns. I just basically like working with him."

Julee B. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"He's great. Christopher and his team are very professional, pleasant to work with, and he knows exactly what to do. He does the job wonderfully. "

"They dealt with surrounding neighbors in a very professional way without encroaching over the property line. Now the neighbor wants to use him for all his trees too."

Kit M. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"He's great. I would recommend him."

"He was suggested by my gardener and they did a great job, so I've used him a few times now. "

Marina M. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Chris is very receptive to owners' input and desires. He tries to do a good job. "

"Chris showed up on time, was quite personable and aimed to please. He did a pretty good job and plans to come back to correct any problems."

Michelle C. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Chris is very knowledgeable and he knows what to do and does it well."

"Chris showed up on time, came well recommended, and did a great job."

Miraan M. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Great prices, great service, and great results"

"I saw Chris cutting a neighbor's tree and he got back to me right away. He did mine and I was totally satisfied with the results. Glad I ran into him in my neighborhood. He has great customer follow-up."

Monica F. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Service with a smile, reasonable rates, and diligent work"

"I think Chris's prices are honestly reasonable and fair. He does a great job for a fair price. I feel I'm getting a very good value. "

Norman L. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They do a really good job at a fair and honest price. "

"I had no worries or concerns as they are so professional. They clean up after themselves too."

Paul K. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Chris was very straightforward, professional, and attentive to customers' questions and desires."

"Chris is very knowledgeable. There were no complications or surprises. He does excellent work. You can tell he truly cares about the trees."

Mara K. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"He is honest and he does a good job. "

"They did the work. They did a fine job expeditiously."

Stefano C. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They were very professional and they did a great job for us."

"They gave me confidence that they know what they are doing. They did the job that needed to be done without any problems and cleaned up well. "

Tanya J. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They answer questions simply so that you understand what they're talking about."

"The personal one-on-one service"

Tim R. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"They listen to the customers and do a good job. "

"They have a very good eye for details and they are totally professional. I was totally satisfied with them. They came on time and cleaned up after they finished. "

Barry S. Verified Trees Company Customer Name
Q1:10 out of 10
Q2:Yes
Q3 & Q4:

"Chris was fantastic, excellent in every way, and actually fun to watch. They are artists atop trees. "

"I liked everything, as they are personable, excellent, professional, and very detailed in their work. I have really tall trees. They were amazing."

Deb M. Verified Trees Company Customer Name
Q1:9 out of 10
Q2:Yes
Q3 & Q4:

"They are very professional. They show up on time and do a great job. "

"They are very personable. They did what they said they would do, so I was very satisfied with their work and would use them again and recommend them to others."

Glen R. Verified Trees Company Customer Name
Q1:9 out of 10
Q2:Yes
Q3 & Q4:

"I started using Chris first, but now all my neighbors use him too. "

"He is reliable, honest, reasonable, efficient, clean, and he does what you ask and offers creative arborist skills too. I feel so comfortable having him in my house and in my yard. He is so professional, non-threatening, and nice."

John M. Verified Trees Company Customer Name
Q1:9 out of 10
Q2:Yes
Q3 & Q4:

"Chris was easy to work with, professional, and he came in under the bid for the work I needed done."

"I was totally satisfied with the quality of the work Chris did. He knows trees, how to prune them, and I liked his efficient use of time and the way he did the removal of the trees and all the mess afterward too."

Karen L. Verified Trees Company Customer Name
Q1:9 out of 10
Q2:Yes
Q3 & Q4:

"They paid attention to my needs and they also considered the proper care of the tree."

"They were on time."

Lola H. Verified Trees Company Customer Name
Q1:9 out of 10
Q2:Yes
Q3 & Q4:

"They were there on time, did what you asked, knew what they were doing, and did a good job."

"Chris is a good guy, nice to deal with, and there were no problems or complications. I felt he did a very adequate job all in all."

Melanie B. Verified Trees Company Customer Name
Q1:9 out of 10
Q2:Yes
Q3 & Q4:

"They listen to your needs and they take care of things you tell them right away."

"They really listen to me. Chris does his best to make my vision a reality."

Ryan W. Verified Trees Company Customer Name
Q1:9 out of 10
Q2:Yes
Q3 & Q4:

"They are a good small business. They work quickly. They are professional and very knowledgeable."

"They responded very quickly when I called them to come and give me an estimate."

Sheila . Verified Trees Company Customer Name
Q1:9 out of 10
Q2:Yes
Q3 & Q4:

"Chris's company did a good job at a reasonable price."

"They came on time, cleaned up after themselves, and we got the quality job that we expected and paid for."

Elissa A. Verified Trees Company Customer Name
Q1:9 out of 10
Q2:Yes
Q3 & Q4:

"He was very good, but a little pricy for me, a single woman."

"He is excellent as far as pruning and he gives the trees a lot of personality."

Sarah S. Verified Trees Company Customer Name
Q1:9 out of 10
Q2:Yes
Q3 & Q4:

"I would recommend them. I would use them again."

"They knew what they were doing and the bid was competitive. They did a good job."

Barbara P. Verified Trees Company Customer Name
Q1:8 out of 10
Q2:Yes
Q3 & Q4:

"Christopher works very efficiently. He returned my call promptly, he was very professional, and he came out right away. He did the job quite well for me."

"Christopher is professional in every way in terms of quality of work, cleanliness, customer service, pricing and estimating. He has a nice personality and good work ethics. I highly recommend him."

Carolina R. Verified Trees Company Customer Name
Q1:8 out of 10
Q2:Yes
Q3 & Q4:

"I would recommend them. They were very good."

"I really liked Christorpher Altman."

Chris H. Verified Trees Company Customer Name
Q1:8 out of 10
Q2:Yes
Q3 & Q4:

"They were very professional, comprehensive, dedicated, and efficient in their work."

"They were so professional, knowledgeable, and competent."

Cristina G. Verified Trees Company Customer Name
Q1:8 out of 10
Q2:Yes
Q3 & Q4:

"They give great attention to details and they are very consciencious about their work. "

"They are very personable and very informed about trees. They know what they are doing and do it well. I was very satisfied with what they did."

Frank E. Verified Trees Company Customer Name
Q1:8 out of 10
Q2:Yes
Q3 & Q4:

"Christopher does fantastic work. "

"They are conscientious, they listen to their customers, and work with them. Christopher is very talented and dedicated to tree management."

Laura R. Verified Trees Company Customer Name
Q1:8 out of 10
Q2:Yes
Q3 & Q4:

"Chris is reliable, honest, friendly, and professional. "

"Chris is just very easy to deal with and he did a good job. I was totally pleased with the result and the whole experience. "

Lisa F. Verified Trees Company Customer Name
Q1:8 out of 10
Q2:Yes
Q3 & Q4:

"Chris is professional, reliable, friendly, easy to work with, and he knows what to do. He charges reasonable, fair rates for what he does."

"Chris seems quite knowledgeable and dedicated to preserving the best interests of trees. He really cares about trees. He cleaned up after completing the work very nicely too."

Rick M. Verified Trees Company Customer Name
Q1:8 out of 10
Q2:Yes
Q3 & Q4:

"He did a fine job and the price was reasonable."

"He did all that he was supposed to do, arrived on time, cleaned up, did good work, and there were no complaints at all. "

Yelena C. Verified Trees Company Customer Name
Q1:8 out of 10
Q2:Yes
Q3 & Q4:

"Chris is friendly, knowledgeable, very forthright in his concern for the trees and doing a good job."

"It was nice to be able to deal directly with the owner of the company for a change. He stands behind his work."

Sean D. Verified Trees Company Customer Name
Q1:8 out of 10
Q2:Yes
Q3 & Q4:

"They did a really decent job for the prices charged. "

"They seemed very personable and friendly. They came right out and cleaned up after they finished. "

Senta R. Verified Trees Company Customer Name
Q1:8 out of 10
Q2:Yes
Q3 & Q4:

"It's been a great experience so far."

"I know they do very good work. They came highly recommended and they got right back to us with a fair quote too. "

Susan E. Verified Trees Company Customer Name
Q1:8 out of 10
Q2:Yes
Q3 & Q4:

"He is professional and he works well for what I need done."

"He is prompt, professional, and he cleans up well."

Georgia S. Verified Trees Company Customer Name
Q1:8 out of 10
Q2:Yes
Q3 & Q4:

"He was fine, did a good job, and I would recommend him to others. "

"I'd use him again. In fact, I plan to. He runs a professional company."

Thomas F. Verified Trees Company Customer Name
Q1:8 out of 10
Q2:Yes
Q3 & Q4:

"I would use them again because they are knowledgeable and conscientious."

"I have observed their work throughout the area and it is all quality work that they do, so I feel good about recommending them. "

Tony V. Verified Trees Company Customer Name
Q1:8 out of 10
Q2:Yes
Q3 & Q4:

"They did very good quality work. Chris is personable, reliable, and very good at what he does. "

"He has great ideas. He is quite artistic with an eye toward detail. He does great results so no complaints."

Claire D. Verified Trees Company Customer Name
Q1:8 out of 10
Q2:Yes
Q3 & Q4:

"He's neat and he cleans up everything right away. He does a good job."

"He came right away and got the job done. He does a good job, knows his business, and does it well. "