Our Story

Tradition & Innovation

Over 17 years of delivering excellence in building and carpentry across the Greater Dublin area.

Professional carpenter in a high-end workshop

Exquisite close-up of premium wooden joinery

17Years of
Excellence

About MJ Carpentry

Quality without compromise.

Founded by master craftsman Michael Johnson, MJ Carpentry began with a simple mission: to provide the highest level of craftsmanship and reliable service to homeowners across Dublin and Leinster.

Today, we have grown into a full-service building company with 32 skilled tradespeople, but our core values remain the same. We believe every home deserves the best possible care, and every client deserves transparent, honest communication from first call to final handover.

400+

Projects Completed

€40M+

Construction Value

Skilled Tradespeople

Start Your Project

Why MJ Carpentry

The MJ Carpentry
Difference

With over 17 years building across Dublin and Leinster, we've refined a process that puts quality, honesty, and craftsmanship at the centre of every project.

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On Time, Every Time

Realistic schedules, clear milestones, and honest progress updates — zero surprises.

Fully Insured

Public liability, employer's liability, and all-risk insurance on every project.

Competitive Pricing

Fixed-price quotes, no hidden costs — excellent value without compromising quality.

Expert Tradespeople

Certified carpenters, joiners, bricklayers, electricians — all vetted professionals.

Clear Communication

A dedicated project manager keeps you informed at every stage — no chasing required.

10-Year Warranty

We stand over our work. Structural workmanship guaranteed for 10 years.

Professional Excellence

Our Project Roadmap

A transparent four-phase journey from your first call to final handover, ensuring quality at every milestone.

Consultation & Design

Structural Groundworks

Construction & Carpentry

Final Handover

“The team at MJ Carpentry are true professionals. They arrived on time every day, kept the site clean, and the finished extension exceeded our expectations in every way.”

John Doherty

Homeowner, Malahide

17+

Years of
Experience

Skilled
Tradespeople