About Master Builder — Trusted Local Builders Since 2004

Direct Builders · No Agencies · Larger Residential Projects Only · Welwyn Garden City & Luton

Who We Are

Master Builder is a directly employed building team specialising in larger residential projects across Welwyn Garden City, Luton, St Albans and Hitchin.

With over 20 years of experience in the construction industry, we have built a reputation for reliable, high quality workmanship and clear communication from start to finish.

We are not an agency or a lead generation service — we are a hands-on building team that manages every project directly. Every job is overseen personally to ensure the standard of work meets our quality expectations.

We take on projects starting from £5,000 and specialise in full home refurbishments, house extensions, garage conversions, bathroom and kitchen renovations, driveways, tiling and flooring.

500+ Projects Completed

Trusted by homeowners across Welwyn Garden City, Luton & surrounding areas

Fully Insured

Full public liability and employers liability insurance. Docs available on request

20+ Years Experience

Established local builders with a proven track record of quality workmanship

TrustATrader Verified

Read our verified reviews from real homeowners on TrustATrader

Why Choose Master Builder?

Direct builders — no agencies or middlemen
Free site visits and detailed written quotes
Projects from £5,000 — serious jobs only
Fully insured — public liability & employers
Clear communication start to finish
Covering Welwyn Garden City, Luton, St Albans & Hitchin

Our Services

We specialise in larger residential projects across Welwyn Garden City, Luton, St Albans & Hitchin

Full Home Refurbishment

Complete property renovations including structural work, kitchens, bathrooms, flooring and full interior fit-out

House Extension

Single and double storey extensions to add space and long-term value to your home

Bathroom Renovation

Full bathroom redesigns and installations — from strip-out to finished tiling and fitting

Kitchen Renovation

Complete kitchen replacements including units, worktops, tiling, plumbing and electrical work

Garage Conversion

Convert your garage into a functional living space — home office, bedroom or utility room

Driveways

Block paving, tarmac and resin driveways installed to a high standard with clean finishing

Tiling & Painting

Professional tiling and painting services for kitchens, bathrooms and living areas

Laminate Flooring

Quality laminate flooring supply and installation throughout your home

What Our Customers Say

Verified reviews from real homeowners across Welwyn Garden City, Luton & surrounding areas

Melina 20th February 2026

We entrusted Master Builder with our full house renovation, including a full overhaul of the kitchen and bathroom, and we couldn’t be happier with the results. The team was professional, friendly, and provided regular updates. The new kitchen layout is both beautiful and functional, while the bathroom is now a relaxing retreat. The quality of work exceeded our expectations, and we appreciated their attention to detail and commitment to completing the project on schedule. Highly recommended!

Simon Lorton 17th February 2026

Master Builder just finished a full renovation in our home, and honestly we’re really happy with how it turned out. Our old kitchen and bathroom now look modern and much more functional, it feels like a completely new space. The team worked hard, stayed on schedule, and were always respectful of our house. There were no big issues along the way and the final result even better than we expected.

George Osborne 8th February 2026

We trusted Master Builder with a full house renovation, including major work on the kitchen and bathroom, and we’re very glad we did. Communication was clear throughout, and the team was friendly and professional. The new kitchen is both practical and visually appealing, and the bathroom now feels like a calm, well-finished space. The attention to detail and overall quality of work were excellent, and we’d happily recommend them.

Emily Thompson 1st February 2026

Master Builder carried out a full refurbishment of our property, and we are extremely satisfied with the outcome. Istvan was reliable, well organised, and kept us updated at every stage of the project. The workmanship was excellent, particularly on the larger elements of the build. It is clear that they specialise in full house refurbishments, and we would not hesitate to use them again.

Ready to Discuss Your Project?

Free site visits and detailed written quotes for projects from £5,000. No obligation, no pressure.