(858) 808-6055
Garage

Garage insulation for the room you actually want.

Garages get used as gyms, offices, ADUs, and second living rooms. None of that works without insulation. We insulate walls, ceilings, and the garage door so the space holds temperature without a window unit running 24/7. ADU code triggers Title 24 — we know the assemblies that pass.

(858) 808-6055 Request a quote
Insulated garage wall with new fiberglass batts before drywall

What's included in this service?

  • Insulate walls (R-13 to R-21 batt or dense-pack)
  • Insulate ceiling or roof deck (R-30 to R-49)
  • Garage door panel kit installation
  • Air-seal the threshold and side gaskets
  • Vapor and fire-rated assemblies for attached garages
  • ADU and habitable-conversion compliance documentation
  • Coordinate with electrician, drywall, and mini split installer

When do you need this service?

  • Garage gym is unusable in summer or winter
  • Converting the garage to ADU or work-from-home space
  • You added a mini split and the bills are still high
  • Bonus room above the garage runs hot or cold
  • Door panels feel hot to the touch in afternoon sun

What do homeowners ask about Garage?

Do I need permits for garage insulation?

Insulation alone usually does not. Once you condition the space and call it habitable — drywall, finished floor, mini split — that's an ADU or conversion permit and triggers Title 24. We can produce the insulation specs your plan reviewer needs.

Is a garage door insulation kit worth it?

It helps, but it is not a substitute for wall and ceiling insulation. The door is roughly 15 to 20 percent of the envelope. If the rest of the box leaks, the door kit can't carry the load alone. We usually do all three together for ADUs.

Can you insulate a garage ceiling that has living space above?

Yes. We use mineral wool or batt with the right fire-rated assembly, plus air-sealing at penetrations. This is one of the highest-impact upgrades for a hot bonus room.

Service area

Where do we offer Garage in San Diego County?

We provide garage in every city and community in San Diego County. Pick your city for local climate notes and service specifics.

Central Garage in San Diego Central San Diego sits between coastal humidity and inland heat. San Diego attics typically hold 1980s or older insulation that has settled to R-15 or worse. Going to R-49 cellulose plus air-sealing is the standard upgrade and pays back in 3–5 years on cooling.
North Coastal Garage in Oceanside Oceanside sees marine influence and a wide age range of housing — 1970s beach stock to new HOA builds. Older homes need a full top-up to R-49 plus air-sealing; newer ones are usually code-compliant and may only need spot work.
North Coastal Garage in Carlsbad Carlsbad sees marine influence and a wide age range of housing — 1970s beach stock to new HOA builds. Older homes need a full top-up to R-49 plus air-sealing; newer ones are usually code-compliant and may only need spot work.
North County Inland Garage in Escondido Escondido hits triple-digit summer afternoons with low humidity. Attics over R-49 with proper air-sealing typically drop cooling load 15–25 percent on the hottest days. We push to R-49 minimum and air-seal the chase penetrations first.
East County Garage in El Cajon El Cajon attics hit 150–160°F in summer and most original tract-home insulation has settled to R-15 or worse. R-49 blown-in cellulose plus air-sealing is the standard scope and one of the highest-return home upgrades in the county.
South County Garage in Chula Vista Chula Vista sits in a mixed zone — coastal-influenced west, inland-influenced east. Older homes usually need attic top-ups to R-38 or R-49; newer EastLake and Otay Ranch builds are code-compliant and may only need spot work or air-sealing.
See garage in all 48 cities
Garage in AlpineGarage in BonitaGarage in BonsallGarage in Borrego SpringsGarage in BoulevardGarage in CampoGarage in CarlsbadGarage in Chula VistaGarage in CoronadoGarage in Del MarGarage in DescansoGarage in DulzuraGarage in El CajonGarage in EncinitasGarage in EscondidoGarage in FallbrookGarage in GuatayGarage in Imperial BeachGarage in JacumbaGarage in JamulGarage in JulianGarage in La MesaGarage in LakesideGarage in Lemon GroveGarage in Mount LagunaGarage in National CityGarage in OceansideGarage in Palomar MountainGarage in Pine ValleyGarage in PotreroGarage in PowayGarage in RamonaGarage in RanchitaGarage in Rancho BernardoGarage in Rancho PeñasquitosGarage in Rancho Santa FeGarage in San DiegoGarage in San MarcosGarage in San YsidroGarage in Santa YsabelGarage in SanteeGarage in Shelter ValleyGarage in Solana BeachGarage in Spring ValleyGarage in TecateGarage in Valley CenterGarage in VistaGarage in Warner Springs
Keep reading

What should you know about Garage?

Buying guides

Garage conversion insulation: ADU rules and what code actually requires

How to insulate a garage conversion or ADU in San Diego — wall, ceiling, and door specs that pass plan check, and how the costs really break down.

Real feedback

Homeowners who hired us for this

We had R-13 batts from 1979 that had settled to nothing. Crew air-sealed top plates first, then blew cellulose to R-49. Upstairs bedrooms feel different now — the AC actually keeps up on hot afternoons.

Melissa R. Attic Insulation · Carlsbad

Got three quotes. Thermal Pro was the only one who recommended air-sealing before insulation and pushed for the radiant barrier given the East County heat. Bill dropped 18 percent in the first August. Worth every dollar.

David K. Attic + Radiant Barrier · El Cajon

Our vaulted ceiling was the hottest room in the house. Closed-cell foam at the roof deck completely changed the room. Crew masked everything carefully, came back to check the cure, walked us through the reoccupancy timeline. Professional all the way.

Priya S. Spray Foam Cathedral Ceiling · Encinitas
Serving San Diego County

Need garage in San Diego County?

Call for a free quote. Most work scheduled within the week.

(858) 808-6055 Request a quote