San Diego Spray Foam
Interior of a metal garage with walls and ceiling fully coated in bright white closed-cell spray foam.

Metal garages & steel buildings

A steel shell is a condensation machine. Until it isn’t.

Metal garages are the latest thing for owners who want to invest in their own property — for the value and for the enjoyment. Closed-cell foam is what turns that shell into a space you can actually use.

Installer spraying closed-cell foam along the ceiling line of a fully masked metal building.
Masked first Doors, lifts, vehicles and studs covered before the gun comes out

Why closed-cell

Foam sticks to steel. Batts never could.

Bare metal panel is the coldest surface in the building. Warm interior air hits it, hits the dew point, and the ceiling starts to rain on whatever is parked below. Fiberglass hung behind the ribs does nothing about it — air still reaches the panel, and now the batt is wet too.

Closed-cell foam is sprayed directly to the panel. It bonds to the steel, follows every rib and purlin, seals every seam and lap, and puts an unbroken vapour-resistant layer between your air and that cold surface. There is no cavity for air to reach, so there is nothing to condense on.

  • Stops condensation at the sourceNo dripping ceilings, no rust bloom on tools and equipment.
  • Highest R-value per inchMatters when every inch of headroom and door clearance counts.
  • Adds rigidity to the panelClosed-cell stiffens the assembly it bonds to, and quiets rain drum.
  • Makes the space conditionableA mini-split can finally hold a temperature in there.

Structures we spray

If it is steel, we have been inside one

Insulated metal garage interior with overhead door and lighting installed.

Home garages & shops

The detached garage that was unusable half the year. Sprayed walls and ceiling, masked doors, ready for a heater and drywall or left exposed.

Arched quonset-style building with the interior arch fully insulated and a wall unit installed.

Quonsets & arched buildings

Curved arch panels are exactly the geometry batts cannot follow. Foam does it in one continuous pass with no fasteners and no framing.

Large commercial steel building with interior framing and panels insulated with spray foam.

Commercial & storage

Warehouse bays, self-storage offices, RV and boat storage. We work around live operations and to the schedule the site needs.

A race car parked inside a finished insulated garage with plywood-lined walls.

A job we are proud of

Four years of waiting, finished in two days

We met a father-and-son race team whose contractor had left them hanging. Their garage — the one meant to house a winning car and everything the community had poured into building it — had sat unfinished for four years. After hearing the story we were happy to step in.

They needed closed-cell foam throughout. We took particular care masking the car lift and the garage components, and we masked the studs too so cleanup and removal would be simple for them afterwards.

It was a joy to work with those gentlemen, and seeing their reaction after a four-year wait is the part of this job you do not get from a spreadsheet.

See more finished buildings

How we work on site

The prep is the job

Spray foam is unforgiving of bad masking. Overspray does not wipe off — so we spend the time up front instead of apologising afterwards.

  1. Walk & plan

    We confirm thickness, product and sequence with you before anything is covered.

  2. Mask everything

    Doors, tracks, lifts, windows, vehicles, electrical and any exposed studs you want left clean.

  3. Spray in lifts

    Controlled passes to the specified thickness, worked panel line by panel line.

  4. Trim & strip

    Foam trimmed where it needs to be flush, masking pulled, offcuts bagged.

  5. Final walk

    We hand the building back and go over coverage with you before we leave.

Metal building work

Before, during and done

Send us the dimensions

Width, length, eave height and what you plan to do with the space. That is usually enough for a real number, and we will come out to confirm it for free.

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