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Trellidor the Ultimate Crime Barrier


Give us a call at (818) 643-6543 and one of our team members would be happy to answer any of your questions.


Your Trellidor retractable window security barriers glide easily on their tracks. They don’t bind and stick like the models from the past. Each installation is custom-made to exactly fit your doors and windows, 

  • Neat compact sash designed for strength and smooth operation
  • Corrosion and UV resistant even at the coast
  • Ultra tough, self-lubricating bearings allow easy glide
  • Fitted with patented Trellidor locking systems (no more ugly padlocks!)

Tough on Crime

Trellidor went all out to engineer these to be a high-level deterrent to crime. The clip you see here with the wrecking ball is one of a series of tests that they have went through to test their strength. 

These expanding gates can be custom-made to fit doors, windows, passages, patios, hatches and most other building openings, keeping them safe from intrusion.

They are made from galvanized steel and are powder-coated as well for extra protection

You also have the choice of either the Trellidor patented deadlock or slamlock.

optimized wrecking ball

Features & Options

  • Powder coated galvanized steel and aluminum trellis-style security gates
  • Custom made to fit your door, window or other openings
  • Engineered with strengthening features to resist attack
  • Neat, compact sash designed for strength and smooth operation
  • Corrosion and UV resistant even at the coast
  • Several models to choose from according to risk profile and budget
  • High end models internationally certified for strength under attack
  • Fitted with patented Trellidor locking systems
  • Carry warranties against defective workmanship, materials and corrosion
  • Special options such as curved units are available



There are many benefits to using aluminum as your material for gates and fencing. Below are just a few reasons aluminum has skyrocketed in popularity with property owners:



Mulholland Brand
Based on 365 reviews
Valair M.
Valair M.
00:42 16 Jun 22
The installation team were top notch professionals Norman George and Ivan was the team that worked on our project. During the project there was a few...
Rupert Mayer
Rupert Mayer
17:23 16 May 22
Great company, great product, great service! We purchased a gate from Mulholland recently. It looks great, and the entire process from design through order to delivery was smooth and professional. They have been quick, friendly, helpful, and very consultative at every step. Highly recommended!
Jamaal L. J.
Jamaal L. J.
13:30 16 May 22
Awesome company to work with. Just had my trellidor bars installed. The install techs were very friendly, nice, communicative and knowledgeable. Answered...
Ethan Alexander
Ethan Alexander
21:59 13 Apr 22
Excellent team and products throughout sales support design and installation. Yael especially made the plan design and install super easy and her experience proved highly valuable. The finished products are testament to their quality over the years of use especially by the ocean. Well worth a conversation and quote. The whole Mulholland team made my home look great and helped increase the security and value. Call them!
Valair M.
Valair M.
15:07 05 Apr 22
I shopped around for a whole year to find a pedestrian gate to match my garage door and I was unsuccessful in finding a match..My husband came across...
Eileen H.
Eileen H.
21:08 22 Mar 22
I am so happy we decided to turn over our install to the pros. I know every pergola available on the world wide web. Great first impressions corresponding...
21:22 16 Mar 22
Jorge was awesome. Detailed on the job install and made sure everything was right before leaving job. A Friendly and knowledgeable employee. An asset to the company, especially for being the last person to have contact with.Brian in the office was also awesome and handling a few last-minute requests.Thank you!Marie
Jill Bogdanowicz
Jill Bogdanowicz
16:56 20 Feb 22
I hired Mulholland Brand to make a driveway gate in a tricky space. They came up with a great solution and made me an absolutely gorgeous gate! On top of how beautiful it looks, it's very high quality. They were responsive, polite, professional, and made sure everything was adjusted perfectly. Their communication was stellar. I'm really happy I found them. I would absolutely recommend them!!
D & M Champion
D & M Champion
23:52 18 Feb 22
Shout out to Sylvester, TJ, Jonathan, Andre, & Josh! This was our second home fencing project w/Mulholland Brand and they did an amazing job! They were professional and efficient! They clearly take pride in their work, so much so, that after completing our new fence installation they made repairs on our old fence because they wanted to make sure it held the same standard as the new one!! I highly recommend them if you want the highest quality work and aesthetic. We will be hiring them again for a pergola installation in the future as well.

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