Custom Metal Fabrication in San Diego

Marine Welding & Fabrication

Repairs, custom work, and on-site solutions for boats, ships, and trailers—built to handle the water.

Welding That Withstands the Water

Corrosion, cracks, and weak welds can leave your boat stranded or unsafe. We deliver expert marine welding and fabrication services that hold strong—so your vessel stays seaworthy and your downtime stays short.

Built for Marine Life, Backed by Experience

From stainless steel handrails to full aluminum fabrication, we craft and repair marine components that endure the elements and function like they should. Our team brings experience, precision, and mobile welding capabilities to every job—dockside or at your location.

Marine Welding & Fabrication Services

Get Reliable Welding and Custom Fabrication for Boats, Trailers, and More

Marine welding repairs

Fix structural damage, brackets, joints, and hull components on boats or ships.

Boat trailer repairs

Reinforce or rebuild aluminum and steel trailer parts to keep transport safe.

Custom fabrication

Made-to-order stainless and aluminum parts built to fit and function.

Stainless steel welding (SS welding)

Clean, corrosion-resistant welds for marine handrails, plates, and structural components.

Aluminum welding & fabrication

Lightweight and strong solutions for boats, docks, trailers, and marine gear.

SS & aluminum handrails

Fabricated and installed for safety, durability, and a clean finish.

SS plates & brackets

Machined and welded for your boat’s exact needs.

Mobile welding & mobile fabrication

We bring the gear to your marina, dock, or yard for on-site solutions.

How It Works

See Our Work

A look at some of our recent stainless and aluminum welds, repairs, and trailer fabrications.

What Clients Say

Boat owners and marine professionals trust us for fast service, clean welds, and dependable results.

      GOOD  
   Based on 12 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   A Elias . 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great guys, came out on a Saturday to rescued me and our huge automatic wood gate. Fixed poor welds and broken piece so gate was operational again!
  
 
      Posted on Google  
   
   Vinny Chenz 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great fab work from this shop. Dropped off my 2019 Tacoma back in April ‘23 for a CMR (cab mount relocation) and the turnaround time was quick and completed with quality install. Welds looked clean and has held strong since April. Bare metal was covered in Steel-It so I haven’t seen any rust developing yet. Price was very reasonable and very competitive to other shops I had received a quote from. The shop isn’t too hard to find but it’s located on private property and isn’t a part of an industrial area (as I was expecting). You’ll be finding yourself in a neighborhood, which you’ll need to walk through the front gate and into the back to let someone know you’re there for some work. However, their shop is professional with tons of projects going on. Only drawback is the shop is quite far out in the hills of East County, and there’s no cell reception out there, so you’ll need to use their guest Wi-Fi if needing to get a Lyft/Uber. Be advised that it may take a while to find a driver to accept a ride when you’re out there.
  
 
      Posted on Google  
   
   Mike Forchette 
 
 
 
 Trustindex verifies that the original source of the review is Google. I have had Heimaster Metal Works do a number of designs and fabrications for me and they always do an amazing job. They always listen and are easy to work with. I feel that they are fair priced and everyone that I have worked with from Heimaster's is always professional and willing to do whatever it takes to make the customer feel that they have received a good product. Very friendly and helpful staff.
  
 
      Posted on Google  
   
   BST Linehaul 
 
 
 
 Trustindex verifies that the original source of the review is Google. This is an excellent company to work with. We use Heimaster Metal Works for custom fabrication, welding, wiring, and paint. Our dealings with them have always been above expectation.
  
 
      Posted on Google  
   
   Ruben Claudio 
 
 
 
 Trustindex verifies that the original source of the review is Google. Heimaster Metal Works is an outstanding fabricator.  They're incredibly responsive, willing to take on any project, and workmanship and quality are second to none.  They have fabricated anything from a custom made Stainless Steel door modification for a concrete cure room to tool racks for our trucks to a metal sheeting canopy for a workspace to ultra heavy duty frames and grates for a custom trench drain system at a concrete plant.  Incredibly friendly, great customer service, and great personnel.  They are RAC Construction & Engineering, Inc.'s go to and first option for custom fabrication jobs!
  
 
      Posted on Google  
   
   Travis Morgan 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent knowledgeable team! Heimaster Metal works has tackled anything from mechanical work, custom fabrication on my Jeep, boat and motorhome. No challenge is too big for them!
  
 
      Posted on Google  
   
   Steve Elkins 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great place, better people