Business Details
Trusted Construction Contractors in High Wycombe
Iwanski Design is an established family-run construction company based in High Wycombe with a proven track record of delivering high-quality domestic building projects. Specialising in renovations, extensions, and new builds across Buckinghamshire, Oxfordshire, Hertfordshire, and Berkshire, we collaborate closely with homeowners and architects to provide tailored solutions. Our commitment to exceptional craftsmanship, competitive pricing, and transparent communication has earned us a strong reputation through repeat business and referrals.With an in-house team of skilled professionals, we prioritise attention to detail, reliability, and value for money, ensuring projects are completed to exacting standards. Our focus on fostering trust and long-term relationships underpins our approach to every client interaction.
Services
Extensions
Loft Conversions
Kitchen Fitting
Bathroom Design
Home Refurbishment
Decking & Landscaping
Bespoke Carpentry
External Cladding
Highlights and features
- We are a family-run business with deep local knowledge in High Wycombe.
- Our in-house team of skilled tradespeople ensures consistent quality control.
- We provide transparent pricing with no hidden fees or surprises.
- Our 100% client retention rate demonstrates exceptional customer satisfaction.
- We specialise in complex projects requiring precision and technical expertise.
What people say
Highest standard
Professional and polite
Completed on time
Attention to detail
Highly recommend
Services
Extensions
We design and construct seamless property extensions that enhance living space while maintaining architectural integrity. Our team manages all aspects from foundations to finishing touches, ensuring compliance with local planning regulations. Clients benefit from tailored solutions that maximise functionality and property value through expert craftsmanship.
Loft Conversions
Specialising in converting underutilised loft spaces into functional rooms, we handle structural modifications, insulation, and staircase installations. Our approach balances building regulations compliance with creative space optimisation. Homeowners gain additional living areas without expanding their property's footprint.
Bathroom Design
From complete overhauls to modernisation projects, we deliver bathrooms combining aesthetics and practicality. Our process includes plumbing upgrades, tiling, and installation of contemporary fixtures. Clients receive functional spaces tailored to their specific accessibility and lifestyle requirements.
Bespoke Carpentry
Our skilled carpenters create made-to-measure storage solutions and architectural features. This includes built-in wardrobes, bookshelves, and period-appropriate joinery. Each piece is crafted to complement existing property characteristics while maximising storage efficiency.
Home Refurbishment
We undertake comprehensive property upgrades covering structural changes, electrical rewiring, and interior modernisation. Our coordinated approach ensures seamless integration of new systems with existing structures. Clients benefit from cohesive transformations that enhance both functionality and market value.
Questions
What areas do you cover for construction projects?
We operate across Buckinghamshire, Oxfordshire, Hertfordshire, and Berkshire, with High Wycombe as our central base.
Do you work directly with homeowners or only through architects?
We collaborate with both homeowners and architects, offering tailored solutions whether you have detailed plans or need design guidance.
What types of projects do you specialise in?
Our expertise includes extensions, loft conversions, kitchen and bathroom renovations, home refurbishments, and bespoke carpentry projects.
How do you ensure quality control on projects?
Our in-house team of skilled tradespeople maintains consistent quality, with regular progress checks and client communication throughout.
Can you handle urgent or time-sensitive building work?
While we don't offer emergency services, we prioritise efficient scheduling and have completed projects within tight deadlines when required.
Videos
Reviews (6)
Maria Virginia Rivera
Jun 24, 2021
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Remi and his team have done a fantastic job re our kitchen extension and refurbishment, bathroom refurbishment, paint etc. Extremely professional, respectful, knowledgeable, resourceful, excellent communication and outstanding quality. We were also living and working at home whilst works took place so they have been very patient and accommodating. Could not recommend this company enough. I am so grateful to my friend who recommended him. Thank you Remi and your fantastic team
Jamie Howard
Nov 28, 2020
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I had Iwanski sort my bathroom out. They ripped out and installed a brand new bathroom to a high quality. Paul, who priced it, was there everyday before 8am on site working hard alongside the plumber and decorator. The old bathroom was like your nans bathroom from the 80s but they have provided me with a sleek and modern design, fit for a batchelor, and at an affordable price. We had some small issues, but they came out and resolved it fairly quickly and no job was too hard for them. I would definitely consider Iwanski and get a quote from them. I will he having them come back to do my ceilings
Laura Barilard
Jun 17, 2020
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We are working with Iwanski Design at the moment, and are very happy with how professional they are and how easy the communication is,. We may change ideas and they never seem to have a problem. I visit the site every day and am amazed at the constant evolution of the building. They are punctual, they are always working hard and super accommodating. Its a pleasure to have chosen this company, that has been recommended to us by our neighbours, and I have nothing negative to say about them.
Rachel Attwell
Oct 21, 2019
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Professional, reliable and brilliant to work with. I wanted a quick turnaround on my one bedroom annex and not only did they complete it in five weeks, but it was on budget and looks amazing! These guys are great, I would definitely recommend them and will use them for my next project.
Emma Jaycock
Aug 16, 2019
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Fantastic company!! Remi and his team replaced our soffits and facias and we were beyond happy!! It looks fantastic, they worked tidily, efficiently and wee very reasonably priced. Would Highly recommend
Ewelina Iwanski
Jun 09, 2019
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Family run building company. Fantastic team with years of experience. Attention to detail from start to finish. Highly recommended!
