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Domestic Building Specialists

Crafted
For Your
Home

PetraCore Developments specialises in domestic building — from stone masonry and home extensions to new builds and landscaping. One trusted team, every trade covered.

15+
Years Experience
100%
In-House Trades
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🏗️
15+
Years of Excellence
PC
About Us

Your Home, Our Craft

PetraCore Developments is a specialist domestic building company led by Jakub Kowalski, with a passion for quality craftsmanship and a personal approach to every project.

We specialise in stone masonry, home extensions, new builds, and landscaping — and because we handle every trade in-house (plumbing, electrics, roofing, plastering and more), you deal with one reliable team from start to finish.

From a single-storey extension to a full new build, we treat every home with the care and precision it deserves — delivering on time, within budget, and with a finish you'll be proud of for years to come.

Craftsmanship

Every stone laid and every joint finished to the highest standard.

Reliability

We show up, we communicate, and we deliver what we promise.

All Trades

Plumbing, electrics, roofing and more — all handled in-house.

Personal Touch

Jakub is hands-on throughout every project from day one.

What We Do

Everything Your Home Needs

01
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Stone Masonry

Our signature craft. From natural stone walls and feature facades to garden boundaries and restoration work — built to last and beautiful to look at.

02
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Home Extensions

Single-storey, double-storey, side returns and wrap-arounds. We design and build extensions that feel like they were always part of your home.

03
🏗️

New Builds

Full new-build homes from groundwork to final finish. We manage the entire process so you can enjoy the journey of building your dream home.

04
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Landscaping

Patios, driveways, garden walls, steps and planting. We transform outdoor spaces into beautiful, practical extensions of your home.

05
🔧

Plumbing & Electrics

Fully qualified in-house plumbers and electricians. No subcontracting headaches — all trades coordinated seamlessly under one roof.

06
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Roofing & All Trades

Roofing, plastering, tiling, carpentry, rendering and more. Whatever your project needs, our team has the skills to get it done right.

Our Work

Real Projects, Real Craft

Every project below was built by Jakub and the PetraCore team. No stock photos — just honest craftsmanship.

Stone Masonry

Welsh Slate Building

📍 Snowdonia, Wales

A standalone stone building constructed entirely from Welsh slate in the heart of Snowdonia National Park — walls, flat roof and all finishing completed by PetraCore.

Dry Stone Walling

Dry Stone Compound

📍 Yorkshire Moors

A full dry stone compound enclosure built on open moorland — perimeter walling, gate post setting and gravel groundworks across a large rural site.

Stone Masonry · Landscaping

Private Estate — Walls, Gardens & Landscaping

📍 West Yorkshire

A large-scale private estate featuring dry stone boundary walling with dressed coping, curved feature walls, herringbone brick pathways, flagstone terracing, formal gardens and large retaining walls. A true showcase of PetraCore's range.

Dry Stone Walling

Cottage Garden Wall

📍 Peak District

A curved dry stone garden wall wrapping the frontage of a traditional stone cottage — built to complement the property's character and create a charming planted border.

Barn Conversion · Full Build

Stone Barn Conversion

📍 Yorkshire Dales

Complete barn conversion including dry stone walling, traditional stone roof, full repointing, landscaped courtyard, stone lintels and window alterations — every element handled in-house.

Stone Build · New Build

Stone Electric Cabin

📍 West Yorkshire

A purpose-built stone cabin with traditional slate roof, dressed quoins and cast iron guttering — constructed to house electrical infrastructure while blending beautifully into the landscape.

Client Stories

Happy Homeowners

★★★★★

Jakub rebuilt our garden boundary wall in natural stone — the craftsmanship is superb. He was reliable, tidy and kept us informed every step of the way. Would absolutely use PetraCore again.

DH
David Hartley
Stone Garden Wall, Baslow
★★★★★

We had a single-storey extension built by PetraCore. Jakub handled everything — from the foundations and stonework right through to the plumbing and electrics. Brilliant quality and a pleasure to deal with.

CR
Claire Rutherford
Home Extension, Sheffield
★★★★★

Jakub repointed our cottage and rebuilt a collapsed section of dry stone wall at the front. The finish blends perfectly with the original stonework. Excellent attention to detail — highly recommended.

MT
Margaret Turner
Repointing & Stone Wall, Hathersage
Get In Touch

Get a Free Quote

Ready to start your project? Call or message Jakub directly for a free, no-obligation quote. We cover all domestic building work — no job too big or too small.

📍
Office
Based in the UK · Covering surrounding areas
📞
Phone
🕐
Hours
Monday – Friday: 8:00 AM – 6:00 PM