Building work, completed on time and within budget...

Why choose us?

Property development, renovations, extensions, loft conversions...

Iwanski Design is an established family run construction company based in High Wycombe Buckinghamshire, with an impressive track record for successfully delivering great results to a high standard of workmanship.

We undertake domestic building projects located within the counties of Buckinghamshire, Oxfordshire, Hertfordshire and Berkshire.


Typically this would include:

  • Extensions, renovations and home improvements

  • Property development, home remodelling and new builds

  • Kitchen and bathroom fitters

  • Loft conversions, bespoke storage

  • Decking, patios and landscaping


Working together with local architects and homeowners we provide a friendly, personal service at very competitive rates. Regardless of the size of the job, we are strongly committed to providing high quality craftsmanship, trustworthy customer service and value for money to each and every customer.

If you're planning alterations to your home and require a quotation from a trustworthy builder - get in touch.