Established in 1991
Seaport Windows and Doors has grown to become a respected industry leader in the sales and installation of replacement windows and doors.
- 4201 Katella Ave Los Alamitos, CA 90720
- 714-220-3939
- sales@seaportwindowsanddoors.com
- Mon – Fri: 8:00am to 5:00pm
Saturdays: by Appointment
ABOUT US
Established in 1991, Seaport Windows and Doors has grown to become a respected industry leader in the sales and installation of replacement windows and doors.
#733260
Google Rating
4.4
Based on 54 reviews
Seaport Windows and Doors
4.4
Bernd Reuter
22:55 11 Mar 26
The guys did an outstanding job replacing a total of 4 outside doors. Very polite and professional while keeping everything clean at the same time. I highly recommend this contractor.
Larry Grange
17:16 07 Mar 26
I have been a customer of Seaport for many years. The quality of the work is a++. I have a large home with several windows and sliding doors. Seaport over time has replaced all of the old windows and sliding doors with quality widows. They also constructed two bay windows. I have people commenting on how fantastic the widows in the home look. I recently had a the large bay window replaced. as usual the workmanship was great.
Susan Swank
22:44 19 Feb 26
I am a repeat customer. I used them for my window installation and they did superb work so I decided to use them for my new back door installation and they did not disappoint. I would highly recommend them. They use quality, professional crews to do the work and they very proficient at their jobs.
Lily Martinez
18:36 13 Jan 26
Prices were reasonable and employees were very friendly and professional. Very happy with my doors.
Ruby magee
16:56 13 Jan 26
So happy we used Seaport Windows And Doors to replace our windows and fix our front door. Alex, came out for the initial consultation. He was very helpful and knowledgeable! Absolutely loved him! I was very impressed with all of the employees at seaport Windows And Doors. From the initial measuring to install and final details. All the employees worked very well together? Very professional and very good at what they do. I am very happy with the way the process went and the results. Thank you guys! I would definitely recommend Seaport Windows And Doors!!
Taylor Mar
00:12 06 Dec 25
I had Seaport Windows and Doors install a custom patio door at my home, and the whole experience was smooth from start to finish. The team was easy to work with and stayed on top of communication through every step: quotes, scheduling, and updates.The techs who came out were sharp. They knew exactly what they were doing, worked fast without cutting corners, and kept the area clean the entire time. The install looks precise, the finishing work is tidy, and the new door fits the space perfectly.If you want a company that’s reliable, clear in their communication, and delivers quality craftsmanship, Seaport is the way to go. I’d hire them again without hesitation.
Cheryl Traylor
17:20 24 Nov 25
We recently replaced all of our old single-pane windows and aging French doors with Seaport Windows and Doors, and we couldn’t be happier. Alex was knowledgeable, helpful, and offered great design suggestions that really improved the look of our home. The crew was professional, friendly, and kept everything clean throughout the project. The installation of 22 windows and 2 bifold doors was completed on schedule with zero surprises. Excellent quality, excellent communication, and a smooth process from start to finish. Highly recommend Seaport Windows and Doors!
Logan Berns
23:45 15 Oct 25
My wife and I had windows installed by Seaport Windows and Doors this month, we are extremely pleased with the result! Everything from the first measurements down to final installation was quick, seamless and enjoyable. Alex (the owner) personally came out and measured all of our windows and gave advice on which windows to go with and his opinion on what would look best. During the installation, his crew was quick and professional. Everything came out wonderful and we are so grateful we went with Seaport Windows and Doors!
rebeck calina
23:10 07 Oct 25
I’m pleased with the whole process from ordering to install very efficient and world class customer service. Thank you to the whole crew. Loved our new window my wife specially.
Daniel Keener
15:52 17 Aug 25
The office crew did well communicating the status of my installation and the installation crew was great. Andrew and Jorje were very professional, efficient and excellent quality work,
angela Serafin
17:31 18 Jun 25
Alex and company at Seaport were great!From their knowledge to customer support and professionalism. Would highly recommend. Thanks to all,Robert and Angela Serafin
Shannon Switzer
23:10 23 May 25
Alex and his entire staff were professional, knowledgeable, and great to work with. Communication was great. The windows and additional substantial decking and stucco repairs needed for the property were well done and are working great. Clean and efficient team. EXCELLENT WORK!
Terreca meagher
18:53 17 Apr 25
Ricardo and team did a wonderful job replacing all my windows and front doors. They were very careful with my decor and furniture. Cleaned up everything at the end of their work day which was fantastic. The only downside was the installation took longer than we expected. So plan for longer so you aren't disappointed. I recommend this company
Rocio Lopez
00:13 21 Feb 25
Thank you! To the Seaport staff they did an awesome job with the windows. Extremely happy with there job and excellent customer service.
Karen Hillman
22:04 30 Dec 24
Seaport Windows and Doors provided excellent service. The office staff was understanding and accommodating, fitting me into their schedule to repair windows that had been installed by someone else. The work crew arrived on time, clearly explained the issues, and addressed everything professionally. I highly recommend them for your window and door needs.
Alda AB
09:41 12 Dec 24
Got a reconstructing sliding door from Seaport for my balcony referred by a decking company who redoes the whole deck for my townhome due to leaking issues. I have to say, I have never ever had a contractor like Seaport that makes me so surprised with the quality of their work. From start to finish, Alex and his team were so professional, thorough and exceptional. They put special coverings on my floor from downstairs to the hallway upstairs from day 1 and cleaned "so well" at each step. They even went beyond in that when the decking company did not do the flashing correctly on the sill pan and nail fin of the door, Alex sent his team member, Kerwuin, out immediately to provide instructions to the decking guys and came back again to inspect. Also to mention the painting and caulking works from Eric were so good too that I cannot even find any imperfect areas inch by inch. And the price is fair. I cannot be any happier with the door and the whole process. I highly recommend Seaport if anyone needs door or window replacement.
Christina Loh
01:09 05 Dec 24
Seaport had competitive pricing and when we experienced a fog issue with one window they came and fixed it with no issues. Would definitely use them again.
Claudia Morrett
16:23 13 Nov 24
I can't begin to thank you enough for my beautiful windows. From the time Alex measured for windows to the installation everything was perfect. The installation crew were so professional abd courteous. Many thanks.
Jeliot Cartwright
17:35 03 Oct 24
We had a custom garden window that needed to be replaced due to leaking. Seaport was much more affordable than what other people were quoting me. They did an amazing job, the window is great quality, they were fast, and made sure to clean up after. Would use again!
Steven Saba
07:12 01 Oct 24
Had a great experience with Seaport! I've had terrible issues with water damage in my townhome due to defects several of the door thresholds and windows. I spent two years trying to diagnose the problem and spent a lot of money on repairs unnecessarily. Alex and crew were quick to identify the issues and I can now live peacefully knowing that my townhome will survive the next rainy season.
gary anderson
22:31 02 Aug 24
Seaport provides excellent service and great products. I had my front entry door replaced 12 years ago by Seaport. The door still looks great today. Recently I had Seaport replace my kitchen door with a modern glass door. The door looks fabulous and brings my kitchen alive. Thanks Seaport!
monique schmidt
20:06 31 Jul 24
Wonderful company. I highly recommend them and they were the only company who could do my VERY custom windows without destroying my kitchen counter tops. Beautiful work and all the workmen great to work with. Customer service always there from start to finish.
T Corrigan
23:53 17 Jul 24
Seaport did a great job helping choose and then install kitchen windows and doors. Alex is very knowledgeable and takes the time to get things right. What impressed me most was the attention to detail by the crew. Especially the interior and exterior molding, paint match, and general installation. I will definitely contact Seaport for all future work. I highly Recommend Seaport. Tom C, Cypress CA
Casey Casburn
18:13 24 Jun 24
Really enjoyed working with this company. The owner Alex came over on numerous occasions to make sure the project was going as planned. And the installation team and Alfonso were friendly and knowledgeable. They did a great job on our 2 large sliders.
James Contreras
14:34 07 Jun 24
Seaport was great to work with.Alex and his team, from office to the onsite workers, were attentive and prompt. Don’t hesitate to call them first.
Cesar Gil
19:37 28 May 24
Got new windows and a patio door installed. Both were installed efficiently and professionally. Always great communication. I just had a bunch of remodeling done from different companies, and Seaport was by far the best and easiest to work with and coordinate. Very fair pricing. I’ll definitely be recommending them to all my people interested in window work.
Robert E Mosquera
16:08 26 Apr 24
When it comes to master craftsmanship, my recommendation goes to Seaport Windows and Doors. Mr. Alex Herrera, the owner, is a true artisan whose dedication to quality shines through in every project. From start to finish, his team delivered nothing short of excellence. Their expertise and professionalism are truly commendable. I particularly appreciated the seamless interaction with Mr. Herrera's staff, each of whom shares a longstanding relationship with him. This speaks volumes about the company's culture and commitment to fostering lasting client relationships. Furthermore, Ms. Jennifer N ensured that every aspect of my project was meticulously covered to my utmost satisfaction.Rest assured that whatever project you have pending; you're in good hands with Seaport windows and doors.
Lara Bazan
15:39 09 Apr 24
Seaport did an amazing job at our home. While it was a major project that involved removing and installing 35 windows, they did it so unbelievably surgically and meticulously that it was a minimal interruption to our daily lives. The installers are professional and respectful, and their daily cleanup was impeccable. They regularly worked overtime to complete daily goals, and they left everything exactly how they found it each day. Alex is extremely knowledgeable and helped come up with creative and innovative ideas for issues we were looking to resolve. He ultimately came up with a product and plan that was perfectly suited to our needs and wants. The windows turned out beautifully, and the overall transformation to our home was incredible.We are so happy with both the product and the service we received, and we could not more highly recommend Seaport to prospective customers considering using them.
jane paquin
16:36 20 Feb 24
Great folks to work with, no surprises, always on time anda terrific product. I will definitely use Seaport Windows and Doorsagain.
joyce prather
00:55 20 Feb 24
Everything looks good. The workers were great, I hardly knew they were here working.
Morgan Moore III
20:58 23 Oct 23
Love our doors.This is a great company to work with.Great service team.
Ben Birdsall
19:04 28 Sep 23
I went with Seaport because Alex was exceptionally thorough and thoughtful when designing our custom balcony doors. He and his team were incredibly professional, courteous, and did amazing work. I look forward to working with them again in the future
Jd b Jxkk
14:39 18 Aug 20
They do perfect work and the painter is a magician. If you get any windows or doors this is the place to go it's a no brainer
Harry Oei
00:03 20 Sep 19
The window renovation worked out well. The only downside is that it took a little longer than expected, but in the end, the window looks great.
Brian G
02:25 21 Feb 19
Seaport is phenomenal. They installed bi-folding doors in our house. They are beautiful and have completely enhanced the look and flow of our home.This was a big project that required significant construction. Usually significant construction interferes with your daily life, but not in this case. Seaport installed a dust wall which literally sealed off the construction. This allowed us to run our busy home without any interference from the construction.The Seaport staff is also spectacular. We knew what they would be doing day by day. Each day we would receive a call from the Seaport staff letting us know when they would be there and what they would be doing that day. Things like this really set Seaport apart from others.Finally, Seaport’s work product was top notch. I am still amazed that they cut a giant hole in our house and I can’t see any patch work. The stucco and internal drywall and texture coat are perfect and the doors themselves are of the highest quality.I can’t recommend Seaport enough. If you are in the market for doors or windows, give Seaport a call.
Russ Peterson
19:55 20 Jul 18
Our doors were a special order that required a great deal of coordination. Crystal was phenomenal about dealing with the details. Peter did an outstanding job on installing them and making sure every detail was tended to with an expert 's eye. Alex was always available to answer questions and make sure that the project went smoothly.
Mary Ferraro
18:17 26 Feb 18
My new windows and door are beautiful Seaport did a very professional job and I could not be happier with the results. I highly recommend them to anyone who is planning on replacing their old doors and windows. They are the best!
Gretchen Ely
06:58 22 Nov 17
Seaport staff and install team was top notch. From the start with a very thorough review of my needs for new replacement windows, a timely and professional plan and bid was presented. Alex Herrera kept me informed and answered all my questi9ns in a timely manner. The installment team was courteous and professional. They did everything they said they would and more. I’m so happy with the job they did. I highly recommend Seaport Windows and Doors.
Cheryl Walrath-Duran
21:18 19 Jul 17
Our home was 'personally-built' by the original owner in the early 1940s, and nothing is plumb or level, so it's not easy for contractors to work on. When my husband and I had to replace our 3 large picture windows (4'x7'), our friends highly recommended Seaport Windows and Doors. This has been the best contractor experience we've ever had--everyone at Seaport has given us superior customer service! Alex, the highly knowledgeable owner, assessed our job, educated us on the available products, gave us options, and then gave us a very good price in a written quote that clearly detailed an appropriate payment schedule. Alex also quickly responded to our emails when we had questions. The office staff kept us well-informed of where we were in the process of having custom windows made. And the installation crew, Jose and Leslie, were amazing! They called us each day to let us know what time they would arrive, and they were always on time or early. They were highly professional, hardworking, polite and pleasant. They kept me informed throughout the three day installation process, maintained an organized work environment, cleaned up at the end of each day, and respectfully answered all of my many questions (unlike many contractors who treat women as if they are brainless). I watched the entire process and it was a pleasure listening to Jose and Leslie logically solve the installation issues they encountered in our 'twisted home.' And never once did I get the impression that they thought it was a "difficult job" even though I know just how difficult it is to work on our house. The windows look incredible! When we do the next part of our remodel, we plan on hiring Seaport to install our doors, casings, and trim. We highly recommend Seaport Windows and Doors!!
Pam Rubin
23:54 23 Apr 17
I had an excellent experience with Seaport Windows. Alex Herrera Is a very knowledgeable. He was able to explain the problem that had developed with the windows we installed when we built our home. His proposal was reasonable. We gave him the OK to order replacement windows. Installation was flawless. I highly recommend Seaport Windows and Doors.
Ralph Larison
18:34 28 Feb 17
Seaport, Alex and crew, did a great job on my window project. Very courteous and professional.
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