4.9 · 305+ Reviews · from £14,500

Garage Conversions in Colchester & Essex.

A garage conversion is one of the cheapest ways to add a proper room to your house. We handle insulation, damp-proofing, new floor build-up, blockwork infill, windows, electrics, plastering and decorating — all in-house and Building Control signed off.

Single garage converted into a home office by OMP Building in Essex
What we cover

Our garage conversions scope

  • Single & double garage conversions
  • Detached garage conversions & annexes
  • Damp-proofing & floor build-up to Building Regs
  • Blockwork infill & new window / door openings
  • Insulation (walls, floor & ceiling) to current standards
  • Full electrics, heating & plastering
Our Process

How a garage conversions job runs

  1. Step 1

    Survey & advice

    We check whether it falls under permitted development, take measurements and discuss layout.

  2. Step 2

    Building Control application

    We submit drawings and the building notice to your local authority.

  3. Step 3

    Structure & weather-tight

    Blockwork infill, new windows, damp-proof course, insulated floor build-up.

  4. Step 4

    First & second fix

    Electrics, plumbing if needed, plasterboard, skim, flooring, decoration.

  5. Step 5

    Sign-off

    Building Control final inspection and completion certificate.

Frequently asked

Garage Conversions — your questions answered

Do I need planning permission?+

Usually no — most garage conversions fall under permitted development. We'll confirm on the free survey.

How long does it take?+

A standard single-garage conversion takes 3–4 weeks from strip-out to handover.

Will it add value?+

Typically yes — converting a single garage adds around 10–15% to a property's value in our area, often more than it costs.

Ready to talk about your project?

Free, no-obligation quotes across Essex. Same-day call back.

Call Now WhatsApp