TRJ Construction LTD

26/05/2026

🎬 From SIP panels to the ultimate private cinema room.

This stunning home cinema shows just what’s possible with a high-performance SIP panel build: solid structure, excellent insulation, fast installation, and a premium finish ready for luxury living.

With atmospheric LED lighting, acoustic-style wall finishes, comfortable seating, and a true cinema feel, this space is designed for relaxing, entertaining, and enjoying movies in style.

✅ SIP panel construction
✅ Energy-efficient and well insulated
✅ Bespoke cinema room design
✅ Luxury finish inside and out
✅ Perfect for garden rooms, annexes, and home entertainment spaces

Thinking about creating your own cinema room, annexe, office, or garden living space? Get in touch today.

AnnexeLiving BespokeBuild HomeEntertainment ModernLiving GardenBuilding PropertyUpgrade

06/05/2026

🏡 Looking for extra living space for your family?

A granny annexe is a practical, comfortable way to keep loved ones close while giving everyone their own independence.

✅ Ideal for elderly parents or family members
✅ Private bedroom, bathroom, kitchen & living space
✅ Built in your garden
✅ Designed around your needs
✅ Turnkey design & build service available

Whether you need more space, want to support a loved one, or are planning for the future, a granny annexe can be a smart long-term investment.
tel:07966800519
[email protected]
www.trj-construction.co.uk
www.mygrannyannexe.co.uk

19/04/2026

https://www.trj-construction.co.uk/can-you-build-a-granny-annexe-in-flood-zone-2-what-homeowners-need-to-know

Can you build a granny annexe in Flood Zone 2? Learn how flood risk, raised floor levels and screw pile foundations can affect planning and design.

01/04/2026

28/03/2026

🔥 Engineered Living Spaces – Built to Last 🔥

Looking to transform your garden into a fully insulated, year-round living space?

At TRJ Construction Ltd, we specialise in high-performance SIP buildings — not just garden rooms.

✔ Granny Annexes
✔ Garden Rooms
✔ Extensions
✔ Fully insulated & airtight
✔ Built in as little as 4–6 weeks

This is not a shed.
This is real living space.

💬 Whether it’s for family, work, or investment — we design & build it all.

📞 07966 800519
🌐 www.trj-construction.co.uk

📍 Hertfordshire • North London • Home Counties

15/03/2026

https://www.trustpilot.com/reviews/69b69a7fa9d459fbb3c1df07

01/03/2026

Engineered garden rooms.
Built with Structural Insulated Panels.

Not sheds.
High-performance buildings.

📞 07966 800519
🌐 www.trj-construction.co.uk

HomeExtension

28/02/2026

Not All Garden Rooms Are Built the Same.

At TRJ Construction, we don’t cut corners.

We build with:

✔ 150mm Roof & Base SIP Panels
✔ 125mm Structural Insulated Walls
✔ K-Render finishes (not painted boards)
✔ Full electrics included
✔ Premium composite & aluminium options
✔ Built to last. Built properly.

While others reduce thickness to reduce price…
we increase performance to increase value.

This isn’t just extra space.
It’s engineered living space.

Starting from £1,400 per sqm inc VAT
(Low-level buildings – no planning required)

Over 20 years of experience.
5★ rated.
Transparent pricing.

📞 07966 800519
📍 Hertfordshire & surrounding areas
🌐 www.trj-construction.co.uk

TRJ Construction Ltd
Building The Future Together.

23/02/2026

Building the Future Together !

At TRJ Construction Ltd, we don’t cut corners — we build properly.

When comparing SIP garden rooms or granny annexes, make sure you’re comparing like-for-like…
On a low level building (less than 2.5m high ,under 30 sqm )

✅ We use 150mm SIP panels for base & roof
❌ Many others use only 100mm

✅ We use 125mm SIP panels for walls
❌ Others use 100mm

✅ We finish sides & rear with professional K-Render system
❌ Others use simple painted boards

✅ Full electrical installation included
✅ Consumer unit, sockets, lighting, heating ready
✅ Open to ANY upgrade — air conditioning, bathrooms, kitchens, bespoke layouts

💷 Prices start from £1,400 per sqm (inc VAT)
(Based on low-level buildings not requiring planning)
and £2200 for granny annexes

With over 20 years of experience, we focus on:
✔ Structural integrity
✔ Thermal performance
✔ Premium finishes
✔ Long-term durability

This isn’t just a garden room.
It’s a properly built, insulated, future-proof space.

⭐ Check our 5-Star Reviews
📞 Call 07966 800519 for a FREE estimate
www.trj-construction.co.uk

TRJ Construction Ltd
🏡 SIP Granny Annexes & Garden Rooms
🔨 Building the Future Together

09/02/2026

Thinking about adding space without the hassle of a big renovation? That’s where we come in! At TRJ Construction, we design and build stunning SIP-panel garden rooms, granny annexes, and extensions. Whether it’s a sleek home office or a cozy annexe for family, we handle everything – design, build, and finish.

✅ Energy-efficient SIP panels
✅ Fast, stress-free construction
✅ Custom designs tailored to your needs

Ready to transform your space? Let’s chat! Drop us a message or visit our website for a free quote.