Master Builder

Covering Welwyn Garden City and the surrounding areas of Hertfordshire. We solely focus on large scale projects.

07367 196362

Membership number TT31054

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4.99 out of 5
23 reviews

Initial impression Initial impression: 4.96 out of 5.0
Punctuality Punctuality: 5.0 out of 5.0
Cleanliness Cleanliness: 5.0 out of 5.0
Quality Quality: 5.0 out of 5.0
Value Value: 4.96 out of 5.0
Overall opinion Overall opinion: 5.0 out of 5.0

0 missed appointments in the past 6 months

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About Master Builder, Welwyn Garden City

Master Builder is a trusted building company focusing on large scale house extensions, full home renovations, kitchen renovations and bathroom refurbishments across Welwyn Garden City, Hertfordshire and surrounding areas.

With over 20 years of experience, our fully qualified and insured team delivers high-quality workmanship, reliable project management and excellent customer service from start to finish.

We focus solely on larger scale renovations and refurbishment projects, including:

House Extensions
Full Property Renovations
Kitchen Renovations
Bathroom Renovations
Structural Alterations
Brickwork
Roofing
Plastering & Rendering
* External Works

Whether you are expanding your family home, upgrading your living space or planning a complete refurbishment, we provide tailored building solutions focused on quality, value and long-term results.

To find out more about the services we offer or to view our gallery, please visit our website: https://masterbuilderluton.com

Please view our customer reviews on TrustATrader to see why local homeowners choose Master Builder for reliable, professional building services.

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Master Builder

Sole trader

Verified on 8th October 2025

Identification checked
Company address verified
Customer references checked
Agreed to TrustATrader's high standards
Agreed to complaints procedure

Welwyn Garden City
Hertfordshire

Insurance details

Provider	Simply Business
Verified	22nd June 2026

Associations

TrustATrader.com

Average rating: 5.0 out of 5

Review by Willy Michiels

on 16th October 2026

"We had a major rear and side extension completed by Master Builder Luton Ltd, creating a spacious new living room, a large modern kitchen and a brand-new bathroom. The project involved extensive structural work, plumbing, electrical installations and a complete transformation of our living space. The workmanship was excellent, with great attention to detail throughout. Istvan and his team were professional, reliable and hardworking. Communication was clear, and we were kept informed throughout the project. We are extremely pleased with the finished result. The transformation has made a huge difference to our home. We would highly recommend Master Builder Luton Ltd to anyone considering a major extension or building project."
- Initial impression Initial impression: 5 out of 5.0
- Punctuality Punctuality: 5 out of 5.0
- Cleanliness Cleanliness: 5 out of 5.0
- Quality Quality: 5 out of 5.0
- Value Value: 5 out of 5.0
- Overall opinion Overall opinion: 5 out of 5.0
Average rating: 5.0 out of 5

Review by Trent Arnold

on 12th October 2026

"We used Istvan from Master Builder Luton Ltd for a complete refurbishment of our house and we are very happy with the finished result. The property needed a full modernisation, including complete rewiring throughout the house, all new water and heating pipework, new flooring, plastering and decorating throughout. They also installed a new kitchen and three new bathrooms, along with all the associated plumbing and electrical work. Istvan coordinated the whole project and his team covered all the different trades, which made the process much easier for us. They were reliable, kept the site organised and always discussed the work with us as the project progressed. The standard of work was excellent and the house has been completely transformed. We would happily recommend Istvan and Master Builder Luton Ltd for a full property refurbishment."
- Initial impression Initial impression: 5 out of 5.0
- Punctuality Punctuality: 5 out of 5.0
- Cleanliness Cleanliness: 5 out of 5.0
- Quality Quality: 5 out of 5.0
- Value Value: 5 out of 5.0
- Overall opinion Overall opinion: 5 out of 5.0
Average rating: 5.0 out of 5

Review by Den Mackintosh

on 8th October 2026

"We appointed Istvan from Master Builder Luton Ltd for a very large renovation and extension project, and we have been extremely impressed with the work. The project involved a substantial 17m x 4m side and rear extension, complete demolition of the existing garage and rebuilding it from the foundations, including a new ground floor and first floor above. The work also included three new bathrooms, a complete new kitchen installation, structural works, plumbing, electrics, plastering, tiling, flooring and decorating. This was a major project requiring a lot of planning and coordination, and Istvan and his team managed everything professionally from start to finish. Communication was excellent, the team worked hard and the quality of the workmanship was very high. We would highly recommend Istvan and Master Builder Luton Ltd, particularly for large extensions, full property renovations and major building projects."
- Initial impression Initial impression: 5 out of 5.0
- Punctuality Punctuality: 5 out of 5.0
- Cleanliness Cleanliness: 5 out of 5.0
- Quality Quality: 5 out of 5.0
- Value Value: 5 out of 5.0
- Overall opinion Overall opinion: 5 out of 5.0
Average rating: 5.0 out of 5

Review by Trinity Rivero

on 26th September 2026

"We hired Master Builder for a major project on our home, including a rear and side extension. From the beginning, Istvan and his team were professional, reliable and very hardworking. The project involved extensive building and structural work, and everything was managed very well from start to finish. Communication was good throughout the project, the team always kept us informed about the progress, and the quality of the workmanship was excellent. We are extremely happy with the finished extension and the additional space it has created for our family. We would definitely recommend Master Builder to anyone looking for a reliable builder for a large extension or renovation project."
- Initial impression Initial impression: 5 out of 5.0
- Punctuality Punctuality: 5 out of 5.0
- Cleanliness Cleanliness: 5 out of 5.0
- Quality Quality: 5 out of 5.0
- Value Value: 5 out of 5.0
- Overall opinion Overall opinion: 5 out of 5.0

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Master Builder

About Master Builder, Welwyn Garden City

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Master Builder

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Reviews (23)

Review by Willy Michiels

Review by Trent Arnold

Review by Den Mackintosh

Review by Trinity Rivero

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