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Home extension work by the crew

Full design-and-build service

Home extensions and renovations by a professional crew

Back-of-house kitchen extensions and renovations of older homes, run by a crew with more than 10 years on site. Free assessment, a clear written contract, and a one-year structural warranty.

What we do

What we do

We take care of back-of-house kitchen extensions (concrete counters, roofing, tiling), front-of-house carport extensions and awning roofs, and bathroom renovations including new sanitary ware and plumbing — so your home ends up exactly the way you want it.

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Our team

The people on site

  • Chang Thong

    Chang Thong

    Project engineer / head of the crew

  • Somchai

    Somchai

    Structural and roofing work

  • Wichai

    Wichai

    Masonry and tiling

Our journey

How we got here

  1. 2014

    The crew is founded

    • We start taking on home extensions and renovations.
  2. 2020

    The team grows

    • An engineer joins to supervise the work, and the one-year structural warranty launches.
  3. 2026

    Raising the bar

    • A higher service standard, a focus on modern extension design, and full online support for our clients.

Smart Garage package

For detached houses and townhomes that need an awning roof to add covered parking.

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Raising the standard of the trade

An engineer supervises the services work, and every job is backed by a one-year structural warranty.

  • Moody black and white portrait of a young man looking contemplative outdoors.
    — Khun Anan
    The crew turned up on time, the kitchen extension is immaculate, they held to the budget, and they never walked off the job.
  • A well-dressed young man in a suit stands alone in a grassy field, conveying sophistication.
    — Khun Methawee
    The carport roof came out beautifully. Good advice on materials, a polite team, and they left the place spotless.
  • Black and white portrait of a confident man with hand on chest, showcasing emotion.
    — Khun Nattapon
    The bathroom renovation looks like a brand-new house. They gave good advice and adjusted the work to what we wanted.
  • Black and white portrait of a fashionable young woman posing at night in an urban setting with sunglasses and long hair.
    — Khun Sirin
    What impressed me was the clear contract and the structural warranty — it put my mind completely at ease.

Frequently asked questions

Working to a higher service standard, with a focus on modern extension design and full online support for our clients.

Is there a charge for the site assessment?

No — the site assessment and consultation are free.

How does payment work?

In instalments tied to the milestones written into the contract — clear and transparent.

Is the work guaranteed?

Yes: a one-year structural warranty, plus general servicing under the terms of the contract.

How many days does an extension take?

A typical extension takes about 14-30 days, depending on the size and the kind of work.

What does the owner need to prepare before work starts?

We clear the area and handle the neighbours for you — all you need to bring is the design you have in mind.

Start turning your house into the one you wanted

Start turning your house into the one you wanted

Reach us on whichever channel suits you, and work with a crew that has been on site for more than 10 years.

Get in touch

Changthong Kanchang

Back-of-house kitchen extensions (concrete counters, roofing, tiling), front carport extensions and awning roofs, bathroom renovations, sanitary ware and plumbing.

© 2026 Changthong Kanchang. All rights reserved.